General ics :: Central processing units and microcontrollers

Central Processing Units and Microcontrollers

Most common microprocessors and microcontrollers used in home-designed computers.


Z80CPU, Z8400

Zilog Z80 CPU.
      +-----+--+-----+
  A11 |1    +--+   40| A10
  A12 |2           39| A9
  A13 |3           38| A8
  A14 |4           37| A7
  A15 |5           36| A6
  CLK |6           35| A5
   D4 |7           34| A4
   D3 |8           33| A3
   D5 |9           32| A2
   D6 |10   Z8400  31| A1
  VCC |11    CPU   30| A0
   D2 |12          29| GND
   D7 |13          28| /RFSH
   D0 |14          27| /M1
   D1 |15          26| /RST
 /INT |16          25| /BUSRQ
 /NMI |17          24| /WAIT
/HALT |18          23| /BUSAK
/MREQ |19          22| /WR
/IORQ |20          21| /RD
      +--------------+

Z180

Integrated Z80-series microprocessor.
PLCC68
+---------------+---------------+---------------+---------------+
| 10 /INT0      | 27 A12        | 44 D7         | 61 /RFSH      |
| 11 /INT1      | 28 A13        | 45 /RTS0      | 62 /IORQ      |
| 12 /INT2      | 29 A14        | 46 /CTS0      | 63 /MREQ      |
| 13 ST         | 30 A15        | 47 /DCD0      | 64 E          |
| 14 A0         | 31 A16        | 48 TxD0       | 65 /M1        |
| 15 A1         | 32 A17        | 49 RxD0       | 66 /WR        |
| 16 A2         | 33 A18 TOUT   | 50 CLK0 /DREQ0| 67 /RD        |
| 17 A3         | 34 VCC        | 51 TxD1       | 68 CLK        |
| 18            | 35            | 52            |  1 GND        |
| 19 A4         | 36 GND        | 53 RxD1       |  2 GND        |
| 20 A5         | 37 D0         | 54 CLK1 /TEND0|  3 X0         |
| 21 A6         | 38 D1         | 55 TxDS       |  4 X1         |
| 22 A7         | 39 D2         | 56 RxDS /CTS1 |  5 /WAIT      |
| 23 A8         | 40 D3         | 57 CLKS       |  6 /BUSACK    |
| 24 A9         | 41 D4         | 58 /DREQ1     |  7 /BUSREQ    |
| 25 A10        | 42 D5         | 59 /TEND1     |  8 /RST       |
| 26 A11        | 43 D6         | 60 /HALT      |  9 /NMI       |
+---------------+---------------+---------------+---------------+

PIC1652, PIC1654, PIC1656, PIC1658 (SSOP)

MicroChip PIC microcontrollers.
      +---+--+---+
  RA2 |1  +--+ 20| RA1
  RA3 |2       19| RA0
T0CKI |3       18| X1
 /RST |4  PIC  17| X0
  GND |5 16C52 16| VCC
  GND |6 16C54 15| VCC
  RB0 |7 16C55 14| RB7
  RB1 |8 16C58 13| RB6
  RB2 |9       12| RB5
  RB3 |10      11| RB4
      +----------+

PIC1652, PIC1654, PIC1656, PIC1658 (DIP,SO)

MicroChip PIC microcontrollers.
      +---+--+---+
  RA2 |1  +--+ 18| RA1
  RA3 |2       17| RA0
T0CKI |3  PIC  16| X1
 /RST |4 16C52 15| X0
  GND |5 16C54 14| VCC
  RB0 |6 16C56 13| RB7
  RB1 |7 16C58 12| RB6
  RB2 |8       11| RB5
  RB3 |9       10| RB4
      +----------+

PIC1655, PIC1657 (SSOP)

MicroChip PIC microcontrollers.
      +---+--+---+
  GND |1  +--+ 28| /RST
T0CKI |2       27| X1
  VCC |3       26| X0
  VCC |4       25| RC7
  RA0 |5       24| RC6
  RA1 |6  PIC  23| RC5
  RA2 |7 16C55 22| RC4
  RA3 |8 16C57 21| RC3
  RB0 |9       20| RC2
  RB1 |10      19| RC1
  RB2 |11      18| RC0
  RB3 |12      17| RB7
  RB4 |13      16| RB6
  GND |14      15| RB5
      +----------+

PIC1655, PIC1657 (DIP,SO)

MicroChip PIC microcontrollers.
      +---+--+---+
T0CKI |1  +--+ 28| /RST
  VCC |2       27| X1
      |3       26| X0
  GND |4       25| RC7
      |5       24| RC6
  RA0 |6  PIC  23| RC5
  RA1 |7 16C55 22| RC4
  RA2 |8 16C57 21| RC3
  RA3 |9       20| RC2
  RB0 |10      19| RC1
  RB1 |11      18| RC0
  RB2 |12      17| RB7
  RB3 |13      16| RB6
  RB4 |14      15| RB5
      +----------+

MicroChip PIC microcontrollers.

     +---+--+---+
 RA2 |1  +--+ 18| RA1
 RA3 |2       17| RA0
 RA4 |3       16| X1
/RST |4  PIC  15| X0
 GND |5 16C61 14| VCC
 RB0 |6 16C71 13| RB7
 RB1 |7 16C84 12| RB6
 RB2 |8       11| RB5
 RB3 |9       10| RB4
     +----------+

PIC1662, PIC1663, PIC1673 (DIP,SO)

MicroChip PIC microcontrollers.
     +---+--+---+
/RST |1  +--+ 28| RB7
 RA0 |2       27| RB6
 RA1 |3       26| RB5
 RA2 |4       25| RB4
 RA3 |5       24| RB3
 RA4 |6  PIC  23| RB2
 RA5 |7 16C62 22| RB1
 GND |8 16C63 21| RB0
  X1 |9 16C73 20| VCC
  X0 |10      19| GND
 RC0 |11      18| RC7
 RC1 |12      17| RC6
 RC2 |13      16| RC5
 RC3 |14      15| RC4
     +----------+

PIC1664, PIC1665, PIC1674 (DIP)

MicroChip PIC microcontrollers.
     +-----+--+-----+
/RST |1    +--+   40| RB7
 RA0 |2           39| RB6
 RA1 |3           38| RB5
 RA2 |4           37| RB4
 RA3 |5           36| RB3
 RA4 |6           35| RB2
 RA5 |7           34| RB1
 RE0 |8           33| RB0
 RE1 |9    PIC    32| VCC
 RE2 |10  16C64   31| GND
 VCC |11  16C65   30| RD7
 GND |12  16C74   29| RD6
  X1 |13          28| RD5
  X0 |14          27| RD4
 RC0 |15          26| RC7
 RC1 |16          25| RC6
 RC2 |17          24| RC5
 RC3 |18          23| RC4
 RD0 |19          22| RD3
 RD1 |20          21| RD2
     +--------------+

PIC16C64, PIC16C65, PIC16C74 (PLCC)

MicroChip PIC microcontrollers.
PLCC44
+---------------+---------------+---------------+---------------+
|  7 RA4        | 18 RC1        | 29 RC7        | 40            |
|  8 RA5        | 19 RC2        | 30 RD4        | 41 RB4        |
|  9 RE0        | 20 RC3        | 31 RD5        | 42 RB5        |
| 10 RE1        | 21 RD0        | 32 RD6        | 43 RB6        |
| 11 RE2        | 22 RD1        | 33 RD7        | 44 RB7        |
| 12 VCC        | 23 RD2        | 34 GND        |  1            |
| 13 GND        | 24 RD3        | 35 VCC        |  2 /RST       |
| 14 X1         | 25 RC4        | 36 RB0        |  3 RA0        |
| 15 X0         | 26 RC5        | 37 RB1        |  4 RA1        |
| 16 RC0        | 27 RC6        | 38 RB2        |  5 RA2        |
| 17            | 28            | 39 RB3        |  6 RA3        |
+---------------+---------------+---------------+---------------+

PIC16C64, PIC16C65, PIC16C74 (MQFP)

MicroChip PIC microcontrollers.
MQFP44
+---------------+---------------+---------------+---------------+
|  1 RC7        | 12            | 23 RA4        | 34            |
|  2 RD4        | 13            | 24 RA5        | 35 RC1        |
|  3 RD5        | 14 RB4        | 25 RE0        | 36 RC2        |
|  4 RD6        | 15 RB5        | 26 RE1        | 37 RC3        |
|  5 RD7        | 16 RB6        | 27 RE2        | 38 RD0        |
|  6 GND        | 17 RB7        | 28 VCC        | 39 RD1        |
|  7 VCC        | 18 /RST       | 29 GND        | 40 RD2        |
|  8 RB0        | 19 RA0        | 30 X1         | 41 RD3        |
|  9 RB1        | 20 RA1        | 31 X0         | 42 RC4        |
| 10 RB2        | 21 RA2        | 32 RC0        | 43 RC5        |
| 11 RB3        | 22 RA3        | 33            | 44 RC6        |
+---------------+---------------+---------------+---------------+

PIC1671, PIC1684 (DIP,SO)

MicroChip PIC microcontrollers.
     +---+--+---+
 RA2 |1  +--+ 18| RA1
 RA3 |2       17| RA0
 RA4 |3       16| X1
/RST |4  PIC  15| X0
 GND |5 16C61 14| VCC
 RB0 |6 16C71 13| RB7
 RB1 |7 16C84 12| RB6
 RB2 |8       11| RB5
 RB3 |9       10| RB4
     +----------+

6309, 6809, 6809

Motorola 6809 and Hitachi 63C09 CPU.
      +-----+--+-----+
  GND |1    +--+   40| /HALT
 /NMI |2           39| X1
 /IRQ |3           38| X0
/FIRQ |4           37| /RST
   BS |5           36| MRDY
   BA |6           35| Q
  VCC |7           34| E
   A0 |8           33| /BREQ
   A1 |9           32| R//W
   A2 |10  MC6809  31| D0
   A3 |11  H63C09  30| D1
   A4 |12          29| D2
   A5 |13          28| D3
   A6 |14          27| D4
   A7 |15          26| D5
   A8 |16          25| D6
   A9 |17          24| D7
  A10 |18          23| A15
  A11 |19          22| A14
  A12 |20          21| A13
      +--------------+

6502, 65SC02

MOS Technologies 6502 CPU.
      +-----+--+-----+
  GND |1    +--+   40| /RST
  RDY |2           39| P2
   P1 |3           38| /SO
 /IRQ |4           37| P0 (in)
      |5           36|
 /NMI |6           35|
 SYNC |7           34| R//W
  VCC |8           33| D0
   A0 |9           32| D1
   A1 |10   6502   31| D2
   A2 |11  65SC02  30| D3
   A3 |12          29| D4
   A4 |13          28| D5
   A5 |14          27| D6
   A6 |15          26| D7
   A7 |16          25| A15
   A8 |17          24| A14
   A9 |18          23| A13
  A10 |19          22| A12
  A11 |20          21| GND
      +--------------+

6802

Motorola 6802 CPU.
      +-----+--+-----+
  GND |1    +--+   40| /RST
/HALT |2           39| X1
   MR |3           38| X0
 /IRQ |4           37| E
  VMA |5           36| RAMEN
 /NMI |6           35| VCC_RAM
   BA |7           34| R//W
  VCC |8           33| D0
   A0 |9           32| D1
   A1 |10    MC    31| D2
   A2 |11   6802   30| D3
   A3 |12          29| D4
   A4 |13          28| D5
   A5 |14          27| D6
   A6 |15          26| D7
   A7 |16          25| A15
   A8 |17          24| A14
   A9 |18          23| A13
  A10 |19          22| A12
  A11 |20          21| GND
      +--------------+

8031, 8032 (PLCC)

Intel 8051-series microcontroller.
PLCC44
+---------------+---------------+---------------+---------------+
|  7 P1.5 CEX2  | 18 P3.6 /WR   | 29 P2.5 A13   | 40 P0.3 AD3   |
|  8 P1.6 CEX3  | 19 P3.7 /RD   | 30 P2.6 A14   | 41 P0.2 AD2   |
|  9 P1.7 CEX4  | 20 X0         | 31 P2.7 A15   | 42 P0.1 AD1   |
| 10 RST        | 21 X1         | 32 /PSEN      | 43 P0.0 AD0   |
| 11 P3.0 RxD   | 22 GND        | 33 ALE /PROG  | 44 VCC        |
| 12            | 23            | 34            |  1            |
| 13 P3.1 TxD   | 24 P2.0 A8    | 35 /EA VPP    |  2 P1.0 T2    |
| 14 P3.2 /INT0 | 25 P2.1 A9    | 36 P0.7 AD7   |  3 P1.1 T2EX  |
| 15 P3.3 /INT1 | 26 P2.2 A10   | 37 P0.6 AD6   |  4 P1.2 ECI   |
| 16 P3.4 T0    | 27 P2.3 A11   | 38 P0.5 AD5   |  5 P1.3 CEX0  |
| 17 P3.5 T1    | 28 P2.4 A12   | 39 P0.4 AD4   |  6 P1.4 CEX1  |
+---------------+---------------+---------------+---------------+

8031, 8032 (DIP)

Intel 8051-series microcontroller.
           +-----+--+-----+
   T2 P1.0 |1    +--+   40| VCC
 T2EX P1.1 |2           39| P0.0 AD0
  ECI P1.2 |3           38| P0.1 AD1
 CEX0 P1.3 |4           37| P0.2 AD2
 CEX1 P1.4 |5           36| P0.3 AD3
 CEX2 P1.5 |6           35| P0.4 AD4
 CEX3 P1.6 |7           34| P0.5 AD5
 CEX4 P1.7 |8           33| P0.6 AD6
       RST |9           32| P0.7 AD7
  RxD P3.0 |10   8051   31| /EA VPP
  TxD P3.1 |11  series  30| ALE /PROG
/INT0 P3.2 |12          29| /PSEN
/INT1 P3.3 |13          28| P2.7 A15
   T0 P3.4 |14          27| P2.6 A14
   T1 P3.5 |15          26| P2.5 A13
  /WR P3.6 |16          25| P2.4 A12
  /RD P3.7 |17          24| P2.3 A11
        X0 |18          23| P2.2 A10
        X1 |19          22| P2.1 A9
       GND |20          21| P2.0 A8
           +--------------+

8035, 8039, 8040, 8048, 8049, 8050 (PLCC)

Intel 8048-series microcontroller.
PLCC44
+---------------+---------------+---------------+---------------+
|  7 /INT       | 18 DB4        | 29 VCCRAM VPP | 40 P2.5       |
|  8 EA         | 19 DB5        | 30 P1.0       | 41 P2.6       |
|  9 /RD        | 20 DB6        | 31 P1.1       | 42 P2.7       |
| 10 /PSEN      | 21 DB7        | 32 P1.2       | 43 T1         |
| 11 /WR        | 22 GND        | 33 P1.3       | 44 VCC        |
| 12            | 23            | 34            |  1            |
| 13 ALE        | 24 P2.0       | 35 P1.4       |  2 T0         |
| 14 DB0        | 25 P2.1       | 36 P1.5       |  3 X1         |
| 15 DB1        | 26 P2.2       | 37 P1.6       |  4 X0         |
| 16 DB2        | 27 P2.3       | 38 P1.7       |  5 /RST       |
| 17 DB3        | 28 PROG       | 39 P2.4       |  6 /SS        |
+---------------+---------------+---------------+---------------+

8035, 8039, 8040, 8048, 8049, 8050 (DIP)

Intel 8048-series microcontroller.
      +-----+--+-----+
   T0 |1    +--+   40| VCC
   X1 |2           39| T1
   X0 |3           38| P2.7
 /RST |4           37| P2.6
  /SS |5           36| P2.5
 /INT |6           35| P2.4
   EA |7           34| P1.7
  /RD |8           33| P1.6
/PSEN |9           32| P1.5
  /WR |10   8048   31| P1.4
  ALE |11  series  30| P1.3
  DB0 |12          29| P1.2
  DB1 |13          28| P1.1
  DB2 |14          27| P1.0
  DB3 |15          26| VCC_RAM VPP
  DB4 |16          25| PROG
  DB5 |17          24| P2.3
  DB6 |18          23| P2.2
  DB7 |19          22| P2.1
  GND |20          21| P2.0
      +--------------+

8051, 8052, 8054, 8058 (DIP)

Intel 8051-series microcontroller.
           +-----+--+-----+
   T2 P1.0 |1    +--+   40| VCC
 T2EX P1.1 |2           39| P0.0 AD0
  ECI P1.2 |3           38| P0.1 AD1
 CEX0 P1.3 |4           37| P0.2 AD2
 CEX1 P1.4 |5           36| P0.3 AD3
 CEX2 P1.5 |6           35| P0.4 AD4
 CEX3 P1.6 |7           34| P0.5 AD5
 CEX4 P1.7 |8           33| P0.6 AD6
       RST |9           32| P0.7 AD7
  RxD P3.0 |10   8051   31| /EA VPP
  TxD P3.1 |11  series  30| ALE /PROG
/INT0 P3.2 |12          29| /PSEN
/INT1 P3.3 |13          28| P2.7 A15
   T0 P3.4 |14          27| P2.6 A14
   T1 P3.5 |15          26| P2.5 A13
  /WR P3.6 |16          25| P2.4 A12
  /RD P3.7 |17          24| P2.3 A11
        X0 |18          23| P2.2 A10
        X1 |19          22| P2.1 A9
       GND |20          21| P2.0 A8
           +--------------+

8051, 8052 (PLCC)

Intel 8051-series microcontroller.
PLCC44
+---------------+---------------+---------------+---------------+
|  7 P1.5 CEX2  | 18 P3.6 /WR   | 29 P2.5 A13   | 40 P0.3 AD3   |
|  8 P1.6 CEX3  | 19 P3.7 /RD   | 30 P2.6 A14   | 41 P0.2 AD2   |
|  9 P1.7 CEX4  | 20 X0         | 31 P2.7 A15   | 42 P0.1 AD1   |
| 10 RST        | 21 X1         | 32 /PSEN      | 43 P0.0 AD0   |
| 11 P3.0 RxD   | 22 GND        | 33 ALE /PROG  | 44 VCC        |
| 12            | 23            | 34            |  1            |
| 13 P3.1 TxD   | 24 P2.0 A8    | 35 /EA VPP    |  2 P1.0 T2    |
| 14 P3.2 /INT0 | 25 P2.1 A9    | 36 P0.7 AD7   |  3 P1.1 T2EX  |
| 15 P3.3 /INT1 | 26 P2.2 A10   | 37 P0.6 AD6   |  4 P1.2 ECI   |
| 16 P3.4 T0    | 27 P2.3 A11   | 38 P0.5 AD5   |  5 P1.3 CEX0  |
| 17 P3.5 T1    | 28 P2.4 A12   | 39 P0.4 AD4   |  6 P1.4 CEX1  |
+---------------+---------------+---------------+---------------+

8054, 8058 (PLCC)

Intel 8051-series microcontroller.
PLCC44
+---------------+---------------+---------------+---------------+
|  7 P1.5 CEX2  | 18 P3.6 /WR   | 29 P2.5 A13   | 40 P0.3 AD3   |
|  8 P1.6 CEX3  | 19 P3.7 /RD   | 30 P2.6 A14   | 41 P0.2 AD2   |
|  9 P1.7 CEX4  | 20 X0         | 31 P2.7 A15   | 42 P0.1 AD1   |
| 10 RST        | 21 X1         | 32 /PSEN      | 43 P0.0 AD0   |
| 11 P3.0 RxD   | 22 GND        | 33 ALE /PROG  | 44 VCC        |
| 12            | 23            | 34            |  1 GND        |
| 13 P3.1 TxD   | 24 P2.0 A8    | 35 /EA VPP    |  2 P1.0 T2    |
| 14 P3.2 /INT0 | 25 P2.1 A9    | 36 P0.7 AD7   |  3 P1.1 T2EX  |
| 15 P3.3 /INT1 | 26 P2.2 A10   | 37 P0.6 AD6   |  4 P1.2 ECI   |
| 16 P3.4 T0    | 27 P2.3 A11   | 38 P0.5 AD5   |  5 P1.3 CEX0  |
| 17 P3.5 T1    | 28 P2.4 A12   | 39 P0.4 AD4   |  6 P1.4 CEX1  |
+---------------+---------------+---------------+---------------+

8085

Intel 8085 CPU.
       +-----+--+-----+
    X1 |1    +--+   40| VCC
    X2 |2           39| HOLD
RSTOUT |3           38| HLDA
   SOD |4           37| CLK
   SID |5           36| /RSTIN
  TRAP |6           35| RDY
 RST75 |7           34| IO//M
 RST65 |8           33| S1
 RST55 |9           32| /RD
  INTR |10   8085   31| /WR
 /INTA |11          30| ALE
   AD0 |12          29| S0
   AD1 |13          28| A15
   AD2 |14          27| A14
   AD3 |15          26| A13
   AD4 |16          25| A12
   AD5 |17          24| A11
   AD6 |18          23| A10
   AD7 |19          22| A9
   GND |20          21| A8
       +--------------+

8086

Intel 8086 CPU.
     +-----+--+-----+
 GND |1    +--+   40| VCC
AD14 |2           39| AD15
AD13 |3           38| A16  S3
AD12 |4           37| A17  S4
AD11 |5           36| A18  S5
AD10 |6           35| A19  S6
 AD9 |7           34| /BHE S7
 AD8 |8           33| MN//MX
 AD7 |9           32| /RD
 AD6 |10          31| HOLD  /RQ//GT0
 AD5 |11   8086   30| HLDA  /RQ//GT1
 AD4 |12          29| /WR   /LOCK
 AD3 |13          28| M//IO /S2
 AD2 |14          27| DT//R /S1
 AD1 |15          26| /DEN  /S0
 AD0 |16          25| ALE   QS0
 NMI |17          24| /INTA QS1
INTR |18          23| /TEST
 CLK |19          22| READY
 GND |20          21| RST
     +--------------+

8088

Intel 8088 CPU.
     +-----+--+-----+
 GND |1    +--+   40| VCC
 A14 |2           39| A15
 A13 |3           38| A16 S3
 A12 |4           37| A17 S4
 A11 |5           36| A18 S5
 A10 |6           35| A19 S6
  A9 |7           34| /SSO
  A8 |8           33| MN//MX
 AD7 |9           32| /RD
 AD6 |10          31| HOLD  /RQ//GT0
 AD5 |11   8088   30| HLDA  /RQ//GT1
 AD4 |12          29| /WR   /LOCK
 AD3 |13          28| M//IO /S2
 AD2 |14          27| DT//R /S1
 AD1 |15          26| /DEN  /S0
 AD0 |16          25| ALE   QS0
 NMI |17          24| /INTA QS1
INTR |18          23| /TEST
 CLK |19          22| READY
 GND |20          21| RST
     +--------------+

8096, 8396, 8796, 8797

Intel 8096-series 16-bit microcontrollers.
PLCC68
+---------------+---------------+---------------+---------------+
| 10 P0.5 ACH5  | 27 HSI3 HSO5  | 44 P2.3 T2CLK | 61 /RD        |
| 11 P0.4 ACH4  | 28 HSO0 /PACT | 45 P4.7 AD15  | 62 ALE /ADV   |
| 12 AGND       | 29 HSO1       | 46 P4.6 AD14  | 63 INST       |
| 13 Vref       | 30 P1.5 /BREQ | 47 P4.5 AD13  | 64 BUSWIDTH   |
| 14 Vpd        | 31 P1.6 /HLDA | 48 P4.4 AD12  | 65 CLK        |
| 15 P2.2 EXTINT| 32 P1.7 /HOLD | 49 P4.3 AD11  | 66 X0         |
| 16 /RST       | 33 P2.6       | 50 P4.2 AD10  | 67 X1         |
| 17 P2.1 RxD   | 34 HSO2       | 51 P4.1 AD9   | 68 GND        |
| 18 P2.0 TxD   | 35 HSO3       | 52 P4.0 AD8   |  1 VCC        |
| 19 P1.0       | 36 GND        | 53 P3.7 AD7   |  2 /EA        |
| 20 P1.1       | 37 VPP        | 54 P3.6 AD6   |  3 NMI        |
| 21 P1.2       | 38 P2.7 T2CAP | 55 P3.5 AD5   |  4 P0.3 ACH3  |
| 22 P1.3       | 39 P2.5 PWM   | 56 P3.4 AD4   |  5 P0.1 ACH1  |
| 23 P1.4       | 40 /WRL /WR   | 57 P3.3 AD3   |  6 P0.0 ACH0  |
| 24 HSI0       | 41 /WRH /BHE  | 58 P3.2 AD2   |  7 P0.2 ACH2  |
| 25 HSI1       | 42 P2.4 T2RST | 59 P3.1 AD1   |  8 P0.6 ACH6  |
| 26 HSI2 HSO4  | 43 READY      | 60 P3.0 AD0   |  9 P0.7 ACH7  |
+---------------+---------------+---------------+---------------+

8097, 8397, 8797

Intel 8096-series 16-bit microcontrollers.
PLCC68
+---------------+---------------+---------------+---------------+
| 10 P0.5 ACH5  | 27 HSI3 HSO5  | 44 P2.3 T2CLK | 61 /RD        |
| 11 P0.4 ACH4  | 28 HSO0 /PACT | 45 P4.7 AD15  | 62 ALE /ADV   |
| 12 AGND       | 29 HSO1       | 46 P4.6 AD14  | 63 INST       |
| 13 Vref       | 30 P1.5 /BREQ | 47 P4.5 AD13  | 64 BUSWIDTH   |
| 14 Vpd        | 31 P1.6 /HLDA | 48 P4.4 AD12  | 65 CLK        |
| 15 P2.2 EXTINT| 32 P1.7 /HOLD | 49 P4.3 AD11  | 66 X0         |
| 16 /RST       | 33 P2.6       | 50 P4.2 AD10  | 67 X1         |
| 17 P2.1 RxD   | 34 HSO2       | 51 P4.1 AD9   | 68 GND        |
| 18 P2.0 TxD   | 35 HSO3       | 52 P4.0 AD8   |  1 VCC        |
| 19 P1.0       | 36 GND        | 53 P3.7 AD7   |  2 /EA        |
| 20 P1.1       | 37 VPP        | 54 P3.6 AD6   |  3 NMI        |
| 21 P1.2       | 38 P2.7 T2CAP | 55 P3.5 AD5   |  4 P0.3 ACH3  |
| 22 P1.3       | 39 P2.5 PWM   | 56 P3.4 AD4   |  5 P0.1 ACH1  |
| 23 P1.4       | 40 /WRL /WR   | 57 P3.3 AD3   |  6 P0.0 ACH0  |
| 24 HSI0       | 41 /WRH /BHE  | 58 P3.2 AD2   |  7 P0.2 ACH2  |
| 25 HSI1       | 42 P2.4 T2RST | 59 P3.1 AD1   |  8 P0.6 ACH6  |
| 26 HSI2 HSO4  | 43 READY      | 60 P3.0 AD0   |  9 P0.7 ACH7  |
+---------------+---------------+---------------+---------------+

MAB8401, MAB8411, MAB8421, MAB8441, MAB8461

Philips 8-bit microcontrollers (based on 8051 series).
The MAB8401 has a 28-pin piggyback socket for a 2732/2764 EPROM.
         +-----+--+-----+
    P2.2 |1    +--+   28| VCC
    P2.3 |2           27| P2.1
    SCLK |3           26| P2.0
    P0.0 |4           25| P1.7
    P0.1 |5           24| P1.6
    P0.2 |6           23| P1.5
    P0.3 |7           22| P1.4
    P0.4 |8  MAB84x1  21| P1.3
    P0.5 |9           20| P1.2
    P0.6 |10          19| P1.1
    P0.7 |11          18| P1.0
/INT /T0 |12          17| RESET
      T1 |13          16| X2
     GND |14          15| X1
         +--------------+

Z8600

Zilog Z8-series microcontroller.
       +-----+--+-----+
   VCC |1    +--+   28| P3.6
    X2 |2           27| P3.1
    X1 |3           26| P2.5
  /RST |4           25| P2.4
   /DS |5           24| P2.3
  P3.5 |6           23| P2.2
   GND |7           22| P2.1
  P0.0 |8   Z8600   21| P1.7
  P0.1 |9           20| P1.6
  P0.2 |10          19| P1.5
  P0.3 |11          18| P1.4
  P0.4 |12          17| P1.3
  P0.5 |13          16| P1.2
  P1.0 |14          15| P1.1
       +--------------+

8748, 8749 (DIP)

Intel 8048-series microcontroller.
      +-----+--+-----+
   T0 |1    +--+   40| VCC
   X1 |2           39| T1
   X0 |3           38| P2.7
 /RST |4           37| P2.6
  /SS |5           36| P2.5
 /INT |6           35| P2.4
   EA |7           34| P1.7
  /RD |8           33| P1.6
/PSEN |9           32| P1.5
  /WR |10   8048   31| P1.4
  ALE |11  series  30| P1.3
  DB0 |12          29| P1.2
  DB1 |13          28| P1.1
  DB2 |14          27| P1.0
  DB3 |15          26| VCC_RAM VPP
  DB4 |16          25| PROG
  DB5 |17          24| P2.3
  DB6 |18          23| P2.2
  DB7 |19          22| P2.1
  GND |20          21| P2.0
      +--------------+

8748, 8749 (PLCC)

Intel 8048-series microcontroller.
PLCC44
+---------------+---------------+---------------+---------------+
|  7 /INT       | 18 DB4        | 29 VCCRAM VPP | 40 P2.5       |
|  8 EA         | 19 DB5        | 30 P1.0       | 41 P2.6       |
|  9 /RD        | 20 DB6        | 31 P1.1       | 42 P2.7       |
| 10 /PSEN      | 21 DB7        | 32 P1.2       | 43 T1         |
| 11 /WR        | 22 GND        | 33 P1.3       | 44 VCC        |
| 12            | 23            | 34            |  1            |
| 13 ALE        | 24 P2.0       | 35 P1.4       |  2 T0         |
| 14 DB0        | 25 P2.1       | 36 P1.5       |  3 X1         |
| 15 DB1        | 26 P2.2       | 37 P1.6       |  4 X0         |
| 16 DB2        | 27 P2.3       | 38 P1.7       |  5 /RST       |
| 17 DB3        | 28 PROG       | 39 P2.4       |  6 /SS        |
+---------------+---------------+---------------+---------------+

8751, 8752 (PLCC)

Intel 8051-series microcontroller.
PLCC44
+---------------+---------------+---------------+---------------+
|  7 P1.5 CEX2  | 18 P3.6 /WR   | 29 P2.5 A13   | 40 P0.3 AD3   |
|  8 P1.6 CEX3  | 19 P3.7 /RD   | 30 P2.6 A14   | 41 P0.2 AD2   |
|  9 P1.7 CEX4  | 20 X0         | 31 P2.7 A15   | 42 P0.1 AD1   |
| 10 RST        | 21 X1         | 32 /PSEN      | 43 P0.0 AD0   |
| 11 P3.0 RxD   | 22 GND        | 33 ALE /PROG  | 44 VCC        |
| 12            | 23            | 34            |  1            |
| 13 P3.1 TxD   | 24 P2.0 A8    | 35 /EA VPP    |  2 P1.0 T2    |
| 14 P3.2 /INT0 | 25 P2.1 A9    | 36 P0.7 AD7   |  3 P1.1 T2EX  |
| 15 P3.3 /INT1 | 26 P2.2 A10   | 37 P0.6 AD6   |  4 P1.2 ECI   |
| 16 P3.4 T0    | 27 P2.3 A11   | 38 P0.5 AD5   |  5 P1.3 CEX0  |
| 17 P3.5 T1    | 28 P2.4 A12   | 39 P0.4 AD4   |  6 P1.4 CEX1  |
+---------------+---------------+---------------+---------------+

8751, 8752, 8754, 8758 (DIP)

Intel 8051-series microcontroller.
           +-----+--+-----+
   T2 P1.0 |1    +--+   40| VCC
 T2EX P1.1 |2           39| P0.0 AD0
  ECI P1.2 |3           38| P0.1 AD1
 CEX0 P1.3 |4           37| P0.2 AD2
 CEX1 P1.4 |5           36| P0.3 AD3
 CEX2 P1.5 |6           35| P0.4 AD4
 CEX3 P1.6 |7           34| P0.5 AD5
 CEX4 P1.7 |8           33| P0.6 AD6
       RST |9           32| P0.7 AD7
  RxD P3.0 |10   8051   31| /EA VPP
  TxD P3.1 |11  series  30| ALE /PROG
/INT0 P3.2 |12          29| /PSEN
/INT1 P3.3 |13          28| P2.7 A15
   T0 P3.4 |14          27| P2.6 A14
   T1 P3.5 |15          26| P2.5 A13
  /WR P3.6 |16          25| P2.4 A12
  /RD P3.7 |17          24| P2.3 A11
        X0 |18          23| P2.2 A10
        X1 |19          22| P2.1 A9
       GND |20          21| P2.0 A8
           +--------------+

8754, 8758 (PLCC)

Intel 8051-series microcontroller.
PLCC44
+---------------+---------------+---------------+---------------+
|  7 P1.5 CEX2  | 18 P3.6 /WR   | 29 P2.5 A13   | 40 P0.3 AD3   |
|  8 P1.6 CEX3  | 19 P3.7 /RD   | 30 P2.6 A14   | 41 P0.2 AD2   |
|  9 P1.7 CEX4  | 20 X0         | 31 P2.7 A15   | 42 P0.1 AD1   |
| 10 RST        | 21 X1         | 32 /PSEN      | 43 P0.0 AD0   |
| 11 P3.0 RxD   | 22 GND        | 33 ALE /PROG  | 44 VCC        |
| 12            | 23            | 34            |  1 GND        |
| 13 P3.1 TxD   | 24 P2.0 A8    | 35 /EA VPP    |  2 P1.0 T2    |
| 14 P3.2 /INT0 | 25 P2.1 A9    | 36 P0.7 AD7   |  3 P1.1 T2EX  |
| 15 P3.3 /INT1 | 26 P2.2 A10   | 37 P0.6 AD6   |  4 P1.2 ECI   |
| 16 P3.4 T0    | 27 P2.3 A11   | 38 P0.5 AD5   |  5 P1.3 CEX0  |
| 17 P3.5 T1    | 28 P2.4 A12   | 39 P0.4 AD4   |  6 P1.4 CEX1  |
+---------------+---------------+---------------+---------------+

PIC12508, PIC12509 (DIP,SO)

MicroChip PIC microcontrollers.
         +---+--+---+
     VCC |1  +--+  8| GND
  X1/GP5 |2 12C508 7| GP0
  X0/GP4 |3 12C509 6| GP1
/RST/GP3 |4        5| GP2/T0CKI
         +----------+

PIC16620, PIC16621, PIC16622 (SSOP)

MicroChip PIC microcontrollers.
     +---+--+---+
 RA2 |1  +--+ 20| RA1
 RA3 |2       19| RA0
 RA4 |3       18| X1
/RST |4  PIC  17| X0
 GND |5 16620 16| VCC
 GND |6 16621 15| VCC
 RB0 |7 16622 14| RB7
 RB1 |8       13| RB6
 RB2 |9       12| RB5
 RB3 |10      11| RB4
     +----------+

PIC16620, PIC16621, PIC16622 (DIP,SO)

MicroChip PIC microcontrollers.
     +---+--+---+
 RA2 |1  +--+ 18| RA1
 RA3 |2       17| RA0
 RA4 |3       16| X1
/RST |4  PIC  15| X0
 GND |5 16620 14| VCC
 RB0 |6 16621 13| RB7
 RB1 |7 16622 12| RB6
 RB2 |8       11| RB5
 RB3 |9       10| RB4
     +----------+

64180

Integrated Z80-series microprocessor.
PLCC68
+---------------+---------------+---------------+---------------+
| 10 /INT0      | 27 A12        | 44 D7         | 61 /RFSH      |
| 11 /INT1      | 28 A13        | 45 /RTS0      | 62 /IORQ      |
| 12 /INT2      | 29 A14        | 46 /CTS0      | 63 /MREQ      |
| 13 ST         | 30 A15        | 47 /DCD0      | 64 E          |
| 14 A0         | 31 A16        | 48 TxD0       | 65 /M1        |
| 15 A1         | 32 A17        | 49 RxD0       | 66 /WR        |
| 16 A2         | 33 A18 TOUT   | 50 CLK0 /DREQ0| 67 /RD        |
| 17 A3         | 34 VCC        | 51 TxD1       | 68 CLK        |
| 18            | 35            | 52            |  1 GND        |
| 19 A4         | 36 GND        | 53 RxD1       |  2 GND        |
| 20 A5         | 37 D0         | 54 CLK1 /TEND0|  3 X0         |
| 21 A6         | 38 D1         | 55 TxDS       |  4 X1         |
| 22 A7         | 39 D2         | 56 RxDS /CTS1 |  5 /WAIT      |
| 23 A8         | 40 D3         | 57 CLKS       |  6 /BUSACK    |
| 24 A9         | 41 D4         | 58 /DREQ1     |  7 /BUSREQ    |
| 25 A10        | 42 D5         | 59 /TEND1     |  8 /RST       |
| 26 A11        | 43 D6         | 60 /HALT      |  9 /NMI       |
+---------------+---------------+---------------+---------------+

68000, 68010 (PLCC)

Motorola 16/32-bit microprocessor.
PLCC68
+---------------+---------------+---------------+---------------+
| 10 /DTACK     | 27 /IPL0      | 44 A13        | 61 D12        |
| 11 /BG        | 28 FC2        | 45 A14        | 62 D11        |
| 12 /BGACK     | 29 FC1        | 46 A15        | 63 D10        |
| 13 /BR        | 30 FC0        | 47 A16        | 64 D9         |
| 14 VCC        | 31            | 48 A17        | 65 D8         |
| 15 CLK        | 32 A1         | 49 A18        | 66 D7         |
| 16 GND        | 33 A2         | 50 A19        | 67 D6         |
| 17 GND        | 34 A3         | 51 A20        | 68 D5         |
| 18            | 35 A4         | 52 VCC        |  1 D4         |
| 19 /HALT      | 36 A5         | 53 A21        |  2 D3         |
| 20 /RST       | 37 A6         | 54 A22        |  3 D2         |
| 21 /VMA       | 38 A7         | 55 A23        |  4 D1         |
| 22 E          | 39 A8         | 56 GND        |  5 D0         |
| 23 /VPA       | 40 A9         | 57 GND        |  6 /AS        |
| 24 /BERR      | 41 A10        | 58 D15        |  7 /UDS       |
| 25 /IPL2      | 42 A11        | 59 D14        |  8 /LDS       |
| 26 /IPL1      | 43 A12        | 60 D13        |  9 R//W       |
+---------------+---------------+---------------+---------------+

68000, 68010 (DIP)

Motorola 16/32-bit microprocessor.
       +-----+--+-----+
    D4 |1    +--+   64| D5
    D3 |2           63| D6
    D2 |3           62| D7
    D1 |4           61| D8
    D0 |5           60| D9
   /AS |6           59| D10
  /UDS |7           58| D11
  /LDS |8           57| D12
  R//W |9           56| D13
/DTACK |10          55| D14
   /BG |11          54| D15
/BGACK |12          53| GND
   /BR |13          52| A23
   VCC |14          51| A22
   CLK |15          50| A21
   GND |16  68000   49| VCC
 /HALT |17  68010   48| A20
  /RST |18          47| A19
  /VMA |19          46| A18
     E |20          45| A17
  /VPA |21          44| A16
 /BERR |22          43| A15
 /IPL2 |23          42| A14
 /IPL1 |24          41| A13
 /IPL0 |25          40| A12
   FC2 |26          39| A11
   FC1 |27          38| A10
   FC0 |28          37| A9
    A1 |29          36| A8
    A2 |30          35| A7
    A3 |31          34| A6
    A4 |32          33| A5
       +--------------+

68008 (DIP)

Motorola 16-bit microprocessor with 8-bit data bus.
    +-----+--+-----+
 A3 |1    +--+   48| A2
 A4 |2           47| A1
 A5 |3           46| A0
 A6 |4           45| FC0
 A7 |5           44| FC1
 A8 |6           43| FC2
 A9 |7           42| /IPL02
A10 |8           41| /IPL1
A11 |9           40| /BERR
A12 |10          39| /VPA
A13 |11          38| E
A14 |12          37| /RST
VCC |13  68008   36| /HALT
A15 |14          35| GND
GND |15          34| CLK
A16 |16          33| /BR
A17 |17          32| /BG
A18 |18          31| /DTACK
A19 |19          30| R//W
 D7 |20          29| /DS
 D6 |21          28| /AS
 D5 |22          27| D0
 D4 |23          26| D1
 D3 |24          25| D2
    +--------------+

68008 (PLCC)

Motorola 16-bit microprocessor with 8-bit data bus.
PLCC52
+---------------+---------------+---------------+---------------+
|  8 A9         | 21 A19        | 34 /DTACK     | 47 /IPL0      |
|  9 A10        | 22 A20        | 35 /BG        | 48 FC2        |
| 10 A11        | 23 D7         | 36 /BGACK     | 49 FC1        |
| 11 A12        | 24 D6         | 37 /BR        | 50 FC0        |
| 12 A13        | 25 D5         | 38 CLK        | 51 A0         |
| 13 A21        | 26 D4         | 39 GND        | 52 A1         |
| 14 A14        | 27 D3         | 40 /HALT      |  1 A2         |
| 15 VCC        | 28 D2         | 41 /RST       |  2 A3         |
| 16 A15        | 29 D1         | 42 E          |  3 A4         |
| 17 GND        | 30 D0         | 43 /VPA       |  4 A5         |
| 18 A16        | 31 /AS        | 44 /BERR      |  5 A6         |
| 19 A17        | 32 /DS        | 45 /IPL1      |  6 A7         |
| 20 A18        | 33 R//W       | 46 /IPL2      |  7 A8         |
+---------------+---------------+---------------+---------------+

68070

Integrated 68000-series 16/32-bit microprocessor.
PLCC84
+---------------+---------------+---------------+---------------+
| 12 /REQ1      | 33 A2         | 54 A22        | 75 SCL        |
| 13 /ACK1      | 34 A3         | 55 A23        | 76 D15        |
| 14 /REQ2      | 35 A4         | 56 /IACK7     | 77 D14        |
| 15 /ACK2      | 36 A5         | 57 /NMI       | 78 D13        |
| 16 /DONE      | 37 A6         | 58 /IACK5     | 79 D12        |
| 17 /DTC       | 38 A7         | 59 /IN5       | 80 D11        |
| 18 /RDY       | 39 A8         | 60 /INT2      | 81 D10        |
| 19 /AS        | 40 A9         | 61 /INT1      | 82 D9         |
| 20 /UDS       | 41 A10        | 62 /IACK4     | 83 D8         |
| 21 /LDS       | 42 A11        | 63 /IN4       | 84 D7         |
| 22 GND        | 43 VCC        | 64 GND        |  1 VCC        |
| 23 R//W       | 44 A12        | 65 /IACK2     |  2 D6         |
| 24 /DTACK     | 45 A13        | 66 /IN2       |  3 D5         |
| 25 /AV        | 46 A14        | 67 T2         |  4 D4         |
| 26 /BERR      | 47 A15        | 68 T1         |  5 D3         |
| 27 /HALT      | 48 A16        | 69 XCKI       |  6 D2         |
| 28 /RST       | 49 A17        | 70 /CTS       |  7 D1         |
| 29 CLKOUT     | 50 A18        | 71 /RTS       |  8 D0         |
| 30 X1         | 51 A19        | 72 RxD        |  9 /BG        |
| 31 X2         | 52 A20        | 73 TxD        | 10 /BGACK     |
| 32 A1         | 53 A21        | 74 SDA        | 11 /BR        |
+---------------+---------------+---------------+---------------+

80186, 80C186, 80C186XL

Integrated 8086-series 16-bit microprocessors.
PLCC68i
+---------------+---------------+---------------+---------------+
|  1 AD15       | 18 DRQ0       | 35 /MCS3 /INPS| 52 /S0        |
|  2 AD7        | 19 DRQ1       | 36 /MCS2      | 53 /S1        |
|  3 AD14       | 20 TMRIN0     | 37 /MCS1 /ERR | 54 /S2        |
|  4 AD6        | 21 TMRIN1     | 38 /MCS0 /PERQ| 55 ARDY       |
|  5 AD13       | 22 TMROUT0    | 39 /DEN       | 56 CLKOUT     |
|  6 AD5        | 23 TMROUT1    | 40 DT//R      | 57 RESET      |
|  7 AD12       | 24 /RST       | 41 INT3 /INTA1| 58 X0         |
|  8 AD4        | 25 /PCS0      | 42 INT2 /INTA0| 59 X1         |
|  9 VCC        | 26 GND        | 43 VCC        | 60 GND        |
| 10 AD11       | 27 /PCS1      | 44 INT1       | 61 ALE  QS0   |
| 11 AD3        | 28 /PCS2      | 45 INT0       | 62 /RD  /QSMD |
| 12 AD10       | 29 /PCS3      | 46 NMI        | 63 /WR  QS1   |
| 13 AD2        | 30 /PCS4      | 47 /TEST BUSY | 64 /BHE       |
| 14 AD9        | 31 /PCS5 A1   | 48 /LOCK      | 65 A19 S6     |
| 15 AD1        | 32 /PCS6 A2   | 49 SRDY       | 66 A18 S5     |
| 16 AD8        | 33 /LCS       | 50 HOLD       | 67 A17 S4     |
| 17 AD0        | 34 /UCS       | 51 HLDA       | 68 A16 S3     |
+---------------+---------------+---------------+---------------+

80188, 80C188, 80C188XL

Integrated 8086-series 8/16-bit microprocessors.
PLCC68i
+---------------+---------------+---------------+---------------+
|  1 A15        | 18 DRQ0       | 35 /MCS3 /INPS| 52 /S0        |
|  2 AD7        | 19 DRQ1       | 36 /MCS2      | 53 /S1        |
|  3 A14        | 20 TMRIN0     | 37 /MCS1 /ERR | 54 /S2        |
|  4 AD6        | 21 TMRIN1     | 38 /MCS0 /PERQ| 55 ARDY       |
|  5 A13        | 22 TMROUT0    | 39 /DEN       | 56 CLKOUT     |
|  6 AD5        | 23 TMROUT1    | 40 DT//R      | 57 RESET      |
|  7 A12        | 24 /RST       | 41 INT3 /INTA1| 58 X0         |
|  8 AD4        | 25 /PCS0      | 42 INT2 /INTA0| 59 X1         |
|  9 VCC        | 26 GND        | 43 VCC        | 60 GND        |
| 10 A11        | 27 /PCS1      | 44 INT1       | 61 ALE  QS0   |
| 11 AD3        | 28 /PCS2      | 45 INT0       | 62 /RD  /QSMD |
| 12 A10        | 29 /PCS3      | 46 NMI        | 63 /WR  QS1   |
| 13 AD2        | 30 /PCS4      | 47 /TEST BUSY | 64 /BHE /RFSH |
| 14 A9         | 31 /PCS5 A1   | 48 /LOCK      | 65 A19 S6     |
| 15 AD1        | 32 /PCS6 A2   | 49 SRDY       | 66 A18 S5     |
| 16 A8         | 33 /LCS       | 50 HOLD       | 67 A17 S4     |
| 17 AD0        | 34 /UCS       | 51 HLDA       | 68 A16 S3     |
+---------------+---------------+---------------+---------------+

80196KB, 83196KB, 87196KB

Intel 8096-series 16-bit microcontrollers.
PLCC68
+---------------+---------------+---------------+---------------+
| 10 P0.5 ACH5  | 27 HSI3 HSO5  | 44 P2.3 T2CLK | 61 /RD        |
| 11 P0.4 ACH4  | 28 HSO0 /PACT | 45 P4.7 AD15  | 62 ALE /ADV   |
| 12 AGND       | 29 HSO1       | 46 P4.6 AD14  | 63 INST       |
| 13 Vref       | 30 P1.5 /BREQ | 47 P4.5 AD13  | 64 BUSWIDTH   |
| 14 Vpd        | 31 P1.6 /HLDA | 48 P4.4 AD12  | 65 CLK        |
| 15 P2.2 EXTINT| 32 P1.7 /HOLD | 49 P4.3 AD11  | 66 X0         |
| 16 /RST       | 33 P2.6       | 50 P4.2 AD10  | 67 X1         |
| 17 P2.1 RxD   | 34 HSO2       | 51 P4.1 AD9   | 68 GND        |
| 18 P2.0 TxD   | 35 HSO3       | 52 P4.0 AD8   |  1 VCC        |
| 19 P1.0       | 36 GND        | 53 P3.7 AD7   |  2 /EA        |
| 20 P1.1       | 37 VPP        | 54 P3.6 AD6   |  3 NMI        |
| 21 P1.2       | 38 P2.7 T2CAP | 55 P3.5 AD5   |  4 P0.3 ACH3  |
| 22 P1.3       | 39 P2.5 PWM   | 56 P3.4 AD4   |  5 P0.1 ACH1  |
| 23 P1.4       | 40 /WRL /WR   | 57 P3.3 AD3   |  6 P0.0 ACH0  |
| 24 HSI0       | 41 /WRH /BHE  | 58 P3.2 AD2   |  7 P0.2 ACH2  |
| 25 HSI1       | 42 P2.4 T2RST | 59 P3.1 AD1   |  8 P0.6 ACH6  |
| 26 HSI2 HSO4  | 43 READY      | 60 P3.0 AD0   |  9 P0.7 ACH7  |
+---------------+---------------+---------------+---------------+

SC80C451, SC83C451

Philips 8-bit microcontrollers (based on 8051 series).
           +-----+--+-----+
       /EA |1    +--+   64| ALE
  A8  P2.0 |2           63| /PSEN
  A9  P2.1 |3           62| P6.7
  A10 P2.2 |4           61| P6.6
  A11 P2.3 |5           60| P6.5
  A12 P2.4 |6           59| P6.4
  A13 P2.5 |7           58| P6.3
  A14 P2.6 |8           57| P6.2
  A15 P2.7 |9           56| P6.1
  AD7 P0.7 |10          55| P6.0
  AD6 P0.6 |11          54| AFLAG
  AD5 P0.5 |12          53| BFLAG
  AD4 P0.4 |13          52| /IDS
  AD3 P0.3 |14          51| /ODS
  AD2 P0.2 |15          50| GND
  AD1 P0.1 |16  80C451  49| X1
  AD0 P0.0 |17  83C451  48| X2
       VCC |18          47| P5.7
      P4.3 |19          46| P5.6
      P4.2 |20          45| P5.5
      P4.1 |21          44| P5.4
      P4.0 |22          43| P5.3
      P1.0 |23          42| P5.2
      P1.1 |24          41| P5.1
      P1.2 |25          40| P5.0
      P1.3 |26          39| P3.7 /RD
      P1.4 |27          38| P3.6 /WR
      P1.5 |28          37| P3.5 T1
      P1.6 |29          36| P3.4 T0
      P1.7 |30          35| P3.3 /INT1
       RST |31          34| P3.2 /INT0
  P3.0 RxD |32          33| P3.1 TxD
           +--------------+









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