Microprocessor support ICs
Z80CTC, Z8430
Z80 Counter-Timer Circuit.
+-----+--+-----+
D4 |1 +--+ 28| D3
D5 |2 27| D2
D6 |3 26| D1
D7 |4 25| D0
GND |5 24| VCC
/RD |6 23| CLK0 TRG0
ZC0 TO0 |7 Z8430 22| CLK1 TRG1
ZC1 TO1 |8 CTC 21| CLK2 TRG2
ZC2 TO2 |9 20| CLK3 TRG3
/IORQ |10 19| A1
IEO |11 18| A0
/INT |12 17| /RST
IEI |13 16| /CE
/M1 |14 15| CLK
+--------------+
Z80DART, Z8470
Z80 dual async/sync serial I/O.Z8470 (DART) has no synchronous capabilities.
+-----+--+-----+
D1 |1 +--+ 40| D0
D3 |2 39| D2
D5 |3 38| D4
D7 |4 37| D6
/INT |5 36| /IORQ
IEI |6 35| /CE
IEO |7 34| A0 B/A
/M1 |8 33| A1 C/D
VCC |9 32| /RD
/W_RDYA |10 Z8440 31| GND
/SYNCA |11 SIO-0 30| /W_RDYB
RxDA |12 29| /SYNCB
/RxCA |13 28| RxDB
/TxCA |14 27| /RxTxCB
TxDA |15 26| TxDB
/DTRA |16 25| /DTRB
/RTSA |17 24| /RTSB
/CTSA |18 23| /CTSB
/DCDA |19 22| /DCDB
CLK |20 21| /RST
+--------------+
Z80DMA, Z8410
Z80 DMA controller.
+-----+--+-----+
A5 |1 +--+ 40| A6
A4 |2 39| A7
A3 |3 38| IEI
A2 |4 37| /INT /PULSE
A1 |5 36| IEO
A0 |6 35| D0
CLK |7 34| D1
/WR |8 33| D2
/RD |9 32| D3
/IORQ |10 Z8410 31| D4
VCC |11 DMA 30| GND
/MREQ |12 29| D5
/BAO |13 28| D6
/BAI |14 27| D7
/BUSRQ |15 26| /M1
/CE /WAIT |16 25| RDY
A15 |17 24| A8
A14 |18 23| A9
A13 |19 22| A10
A12 |20 21| A11
+--------------+
Z80PIO, Z8420
Z80 parallel I/O.
+-----+--+-----+
D2 |1 +--+ 40| D3
D7 |2 39| D4
D6 |3 38| D5
/CE |4 37| /M1
C/D A1 |5 36| /IORQ
B/A A0 |6 35| /RD
PA7 |7 34| PB7
PA6 |8 33| PB6
PA5 |9 32| PB5
PA4 |10 Z8420 31| PB4
GND |11 PIO 30| PB3
PA3 |12 29| PB2
PA2 |13 28| PB1
PA1 |14 27| PB0
PA0 |15 26| VCC
/ASTB |16 25| CLK
/BSTB |17 24| IEI
ARDY |18 23| /INT
D0 |19 22| IEO
D1 |20 21| BRDY
+--------------+
Z80SIO, Z80SIO0, Z8440, Z8470
Z80 dual async/sync serial I/O.Z8470 (DART) has no synchronous capabilities.
+-----+--+-----+
D1 |1 +--+ 40| D0
D3 |2 39| D2
D5 |3 38| D4
D7 |4 37| D6
/INT |5 36| /IORQ
IEI |6 35| /CE
IEO |7 34| A0 B/A
/M1 |8 33| A1 C/D
VCC |9 32| /RD
/W_RDYA |10 Z8440 31| GND
/SYNCA |11 SIO-0 30| /W_RDYB
RxDA |12 29| /SYNCB
/RxCA |13 28| RxDB
/TxCA |14 27| /RxTxCB
TxDA |15 26| TxDB
/DTRA |16 25| /DTRB
/RTSA |17 24| /RTSB
/CTSA |18 23| /CTSB
/DCDA |19 22| /DCDB
CLK |20 21| /RST
+--------------+
MAX703
uP supervisor circuit with battery backup./RST remains low for 200ms after VCC exceeds 4.65V. On power failure VCCo is connected to VBAT, PFI and /MR are disabled, /RST and /PFO are low.
+---+--+---+
VCCo |1 +--+ 8| VBAT
VCC |2 MAX 7| /RST
GND |3 703 6| /MR
PFI |4 5| /PFO
+----------+
765
Floppy disk controller.
+-----+--+-----+
RST |1 +--+ 40| VCC
/RD |2 39| /RW SEEK
/WR |3 38| LCT DIR
/CE |4 37| FR STEP
D/S A0 |5 36| HDL
D0 |6 35| RDY
D1 |7 34| WP TS
D2 |8 33| FLT TR00
D3 |9 32| PS0
D4 |10 765 31| PS1
D5 |11 FDC 30| WDA
D6 |12 29| US0
D7 |13 28| US1
DRQ |14 27| HD
/DACK |15 26| MFM
TC |16 25| WE
IDX |17 24| VCO SYNC
INT |18 23| RDD
CLK |19 22| RDW
GND |20 21| WCLK
+--------------+
Z80SIO1, Z8441
Z80 dual async/sync serial I/O (bonding option #1).
+-----+--+-----+
D1 |1 +--+ 40| D0
D3 |2 39| D2
D5 |3 38| D4
D7 |4 37| D6
/INT |5 36| /IORQ
IEI |6 35| /CE
IEO |7 34| A0 B/A
/M1 |8 33| A1 C/D
VCC |9 32| /RD
/W_RDYA |10 Z8441 31| GND
/SYNCA |11 SIO-1 30| /W_RDYB
RxDA |12 29| /SYNCB
/RxCA |13 28| RxDB
/TxCA |14 27| /RxCB
TxDA |15 26| /TxCB
/DTRA |16 25| TxDB
/RTSA |17 24| /RTSB
/CTSA |18 23| /CTSB
/DCDA |19 22| /DCDB
CLK |20 21| /RST
+--------------+
Z80SIO2, Z8442
Z80 dual async/sync serial I/O (bonding option #2).
+-----+--+-----+
D1 |1 +--+ 40| D0
D3 |2 39| D2
D5 |3 38| D4
D7 |4 37| D6
/INT |5 36| /IORQ
IEI |6 35| /CE
IEO |7 34| A0 B/A
/M1 |8 33| A1 C/D
VCC |9 32| /RD
/W_RDYA |10 Z8442 31| GND
/SYNCA |11 SIO-2 30| /W_RDYB
RxDA |12 29| RxDB
/RxCA |13 28| /RxCB
/TxCA |14 27| /TxCB
TxDA |15 26| TxDB
/DTRA |16 25| /DTRB
/RTSA |17 24| /RTSB
/CTSA |18 23| /CTSB
/DCDA |19 22| /DCDB
CLK |20 21| /RST
+--------------+
SAA1064
I2C 4 digit common-anode LED driver.I2C address is 01110xx where xx can be specified by the voltage on the ADR input (GND=00 3/8VCC=01 5/8VCC=10 VCC=11).
+---+--+---+
ADR |1 +--+ 24| SCL
Cext |2 23| SDA
1Y8 |3 22| 2Y8
1Y7 |4 21| 2Y7
1Y6 |5 20| 2Y6
1Y5 |6 19| 2Y5
1Y4 |7 1064 18| 2Y4
1Y3 |8 17| 2Y3
1Y2 |9 16| 2Y2
1Y1 |10 15| 2Y1
MX1 |11 14| MX2
GND |12 13| VCC
+----------+
DS1202
Real-time clock with 3-wire serial interface and 24 bytes RAM.
+---+--+---+
|1 +--+ 8| VCC
X1 |2 DS 7| CLK
X2 |3 1202 6| DQ
GND |4 5| /RST
+----------+
DS1210
Nonvolatile SRAM controller chip.TOL selects power-fail VCC level, based on 5% tolerance when 0 or 10% tolerance when 1.
+---+--+---+ +---+----*---+
VCCo |1 +--+ 8| VCC |/EN|VCC |/Y |
VBAT1 |2 DS 7| VBAT2 +===+====*===+
TOL |3 1210 6| /Y | 1 | OK | 1 |
GND |4 5| /EN | 0 | OK | 0 |
+----------+ | X | LO | 1 |
+---+----*---+
DS1211
1-of-8 inverting decoder/nonvolatile SRAM controller chip.TOL selects power-fail VCC level, based on 5% tolerance when 0 or 10% tolerance when 1. The Dallas Semi data book suggests this is actually a repackaged DS1212.
+---+--+---+ +---+---+---+---+----*---+---+---+---+---+
VBAT1 |1 +--+ 20| VCC |/EN| S2| S1| S0|VCC |/Y0|/Y1|...|/Y7|/PF|
VCCo |2 19| VBAT2 +===+===+===+===+====*===+===+===+===+===+
TOL |3 18| /EN | X | X | X | X | LO | 1 | 1 | 1 | 1 | 0 |
/PF |4 17| /Y0 | 1 | 0 | 0 | 0 | OK | 0 | 1 | 1 | 1 | 1 |
/Y7 |5 DS 16| /Y1 | 0 | 0 | 0 | 1 | OK | 1 | 0 | 1 | 1 | 1 |
/Y6 |6 1211 15| /Y2 | 0 | . | . | . | OK | 1 | 1 | . | 1 | 1 |
S2 |7 14| /Y3 | 0 | 1 | 1 | 1 | OK | 1 | 1 | 1 | 0 | 1 |
S1 |8 13| +---+---+---+---+----*---+---+---+---+---+
S0 |9 12| /Y4
GND |10 11| /Y5
+----------+
DS1212
1-of-16 inverting decoder/nonvolatile SRAM controller chip.TOL selects power-fail VCC level, based on 5% tolerance when 0 or 10% tolerance when 1.
+-----+--+-----+ +---+---+---+---+---+----*---+---+---+----+---+
VBAT1 |1 +--+ 28| VCC |/EN| S3| S2| S1| S0|VCC |/Y0|/Y1|...|/Y15|/PF|
VCCo |2 27| VBAT2 +===+===+===+===+===+====*===+===+===+====+===+
TOL |3 26| /EN | X | X | X | X | X | LO | 1 | 1 | 1 | 1 | 0 |
/PF |4 25| /Y0 | 1 | 0 | 0 | 0 | 0 | OK | 0 | 1 | 1 | 1 | 1 |
/Y15 |5 24| /Y1 | 0 | 0 | 0 | 0 | 1 | OK | 1 | 0 | 1 | 1 | 1 |
/Y14 |6 23| /Y2 | 0 | . | . | . | . | OK | 1 | 1 | . | 1 | 1 |
/Y13 |7 DS 22| /Y3 | 0 | 1 | 1 | 1 | 1 | OK | 1 | 1 | 1 | 0 | 1 |
/Y12 |8 1212 21| /Y4 +---+---+---+---+---+----*---+---+---+----+---+
/Y11 |9 20| /Y5
S3 |10 19| /Y6
S2 |11 18| /Y7
S1 |12 17| /Y8
S0 |13 16| /Y9
GND |14 15| /Y10
+--------------+
DS1285, DS1287, DS1287A
Real-time clock with 50 bytes RAM.DS1287(A) has built-in quartz crystal and lihium battery, and therefore the X1, X2 and VBAT pins are no-connect. On the (older) DS1287 the /RCLR pin is no-connect as well.
+-----+--+-----+
MOT |1 +--+ 24| VCC
X1 |2 23| SQW
X2 |3 22|
AD0 |4 21| /RCLR
AD1 |5 20| VBAT
AD2 |6 DS1285 19| /INT
AD3 |7 18| /RST
AD4 |8 17| DS
AD5 |9 16| GND
AD6 |10 15| R//W
AD7 |11 14| AS
GND |12 13| /CE
+--------------+
Z16C30
Dual universal serial controller.PLCC68 +---------------+---------------+---------------+---------------+ | 10 /RxACKA | 27 /TxREQA | 44 /RxREQB | 61 /TxACKB | | 11 /INTA | 28 /RxCA | 45 VCC | 62 /PITACK | | 12 IEIA | 29 RxDA | 46 GND | 63 R//W | | 13 IEOA | 30 /DCDA | 47 AD15 | 64 /WR | | 14 GND | 31 /TxCA | 48 AD14 | 65 /RD | | 15 VCC | 32 TxDA | 49 AD13 | 66 /DS | | 16 AD0 | 33 /CTSA | 50 AD12 | 67 /AS | | 17 AD1 | 34 GND | 51 AD11 | 68 VCC | | 18 AD2 | 35 GND | 52 AD10 | 1 VCC | | 19 AD3 | 36 GND | 53 AD9 | 2 VCC | | 20 AD4 | 37 /CTSB | 54 AD8 | 3 /RST | | 21 AD5 | 38 TxDB | 55 VCC | 4 /CE | | 22 AD6 | 39 /TxCB | 56 GND | 5 D//C | | 23 AD7 | 40 /DCDB | 57 IEOB | 6 A//B | | 24 GND | 41 RxDB | 58 IEIB | 7 /SITACK | | 25 VCC | 42 /RxCB | 59 /INTB | 8 /WAIT//RDY | | 26 /RxREQA | 43 /TxREQB | 60 /RxACKB | 9 /TxACKA | +---------------+---------------+---------------+---------------+
Z16C33
Mono universal serial controller with ISDN time slot assigner.PLCC68 +---------------+---------------+---------------+---------------+ | 10 /RxACK | 27 /TxREQ | 44 PORT7 | 61 | | 11 /INT | 28 /RxC | 45 VCC | 62 /PITACK | | 12 IEI | 29 RxD | 46 GND | 63 R//W | | 13 IEO | 30 /DCD | 47 AD15 | 64 /WR | | 14 GND | 31 /TxC | 48 AD14 | 65 /RD | | 15 VCC | 32 TxD | 49 AD13 | 66 /DS | | 16 AD0 | 33 /CTS | 50 AD12 | 67 /AS | | 17 AD1 | 34 GND | 51 AD11 | 68 VCC | | 18 AD2 | 35 GND | 52 AD10 | 1 VCC | | 19 AD3 | 36 GND | 53 AD9 | 2 VCC | | 20 AD4 | 37 PORT0 | 54 AD8 | 3 /RST | | 21 AD5 | 38 PORT1 | 55 VCC | 4 /CE | | 22 AD6 | 39 PORT2 | 56 GND | 5 D//C | | 23 AD7 | 40 PORT3 | 57 | 6 PS | | 24 GND | 41 PORT4 | 58 | 7 /SITACK | | 25 VCC | 42 PORT5 | 59 | 8 /WAIT//RDY | | 26 /RxREQ | 43 PORT6 | 60 | 9 /TxACK | +---------------+---------------+---------------+---------------+
6520, 6821
6800 and 6502 families peripheral interface adapters.
+-----+--+-----+
GND |1 +--+ 40| CA1
PA0 |2 39| CA2
PA1 |3 38| /IRQA
PA2 |4 37| /IRQB
PA3 |5 36| RS0
PA4 |6 35| RS1
PA5 |7 34| /RST
PA6 |8 33| D0
PA7 |9 32| D1
PB0 |10 MC6821 31| D2
PB1 |11 6520 30| D3
PB2 |12 29| D4
PB3 |13 28| D5
PB4 |14 27| D6
PB5 |15 26| D7
PB6 |16 25| E (P2)
PB7 |17 24| CE1
CB1 |18 23| /CE2
CB2 |19 22| CE0
VCC |20 21| R//W
+--------------+
6530
6502 family versatile interface adapter.
+-----+--+-----+
GND |1 +--+ 40| PA1
PA0 |2 39| PA2
E (P2) |3 38| PA3
RS |4 37| PA4
A9 |5 36| PA5
A8 |6 35| PA6
A7 |7 34| PA7
A6 |8 33| DB0
R/W |9 32| DB1
A5 |10 6530 31| DB2
A4 |11 30| DB3
A3 |12 29| DB4
A2 |13 28| DB5
A1 |14 27| DB6
A0 |15 26| DB7
/RST |16 25| PB0
/IRQ PB7 |17 24| PB1
CS1 PB6 |18 23| PB2
CS2 PB5 |19 22| PB3
VCC |20 21| PB4
+--------------+
6551
6502 family asynchronous serial interface controller.
+-----+--+-----+
GND |1 +--+ 28| R//W
CE0 |2 27| CLK
/CE1 |3 26| /IRQ
/RST |4 25| D7
RxC |5 24| D6
X1 |6 23| D5
X0 |7 6551 22| D4
/RTS |8 21| D3
/CTS |9 20| D2
TxD |10 19| D1
/DTR |11 18| D0
RxD |12 17| /DSR
RS0 |13 16| /DCD
RS1 |14 15| VCC
+--------------+
6818
Real-time clock with 50 bytes RAM.
+-----+--+-----+
|1 +--+ 24| VCC
X1 |2 23| SQW
X2 |3 22|
AD0 |4 21| /RCLR
AD1 |5 20| VBAT
AD2 |6 146818 19| /INT
AD3 |7 18| /RST
AD4 |8 17| DS
AD5 |9 16| GND
AD6 |10 15| R//W
AD7 |11 14| AS
GND |12 13| /CE
+--------------+
6845
6800 family CRT Controller.
+-----+--+-----+
GND |1 +--+ 40| VSYNC
/RST |2 39| HSYNC
LPSTB |3 38| RA0
MA0 |4 37| RA1
MA1 |5 36| RA2
MA2 |6 35| RA3
MA3 |7 34| RA4
MA4 |8 33| D0
MA5 |9 32| D1
MA6 |10 6845 31| D2
MA7 |11 CRTC 30| D3
MA8 |12 29| D4
MA9 |13 28| D5
MA10 |14 27| D6
MA11 |15 26| D7
MA12 |16 25| /CE
MA13 |17 24| A0
DISPEN |18 23| IORQ
CURSOR |19 22| R/W
VCC |20 21| CLK
+--------------+
6850
6800 family asynchronous communications interface.
+-----+--+-----+
GND |1 +--+ 24| /CTS
RxD |2 23| /DCD
RxCLK |3 22| D0
TxCLK |4 21| D1
/RTS |5 20| D2
TxD |6 19| D3
/IRQ |7 6850 18| D4
CE0 |8 17| D5
/CE2 |9 16| D6
CE1 |10 15| D7
RS |11 14| E
VCC |12 13| R//W
+--------------+
6852
6800 family synchronous serial data adapter.
+-----+--+-----+
GND |1 +--+ 24| /CTS
RxD |2 23| /DCD
RxCLK |3 22| D0
TxCLK |4 21| D1
SM /DTR |5 20| D2
TxD |6 19| D3
/IRQ |7 6852 18| D4
TUF |8 17| D5
/RST |9 16| D6
/CE |10 15| D7
RS |11 14| E
VCC |12 13| R//W
+--------------+
8243
8048 Port expander.
+-----+--+-----+
P5.0 |1 +--+ 24| VCC
P4.0 |2 23| P5.1
P4.1 |3 22| P5.2
P4.2 |4 21| P5.3
P4.3 |5 20| P6.0
/CE |6 19| P6.1
PROG |7 8243 18| P6.2
P2.3 |8 17| P6.3
P2.2 |9 16| P7.3
P2.1 |10 15| P7.2
P2.0 |11 14| P7.1
GND |12 13| P7.0
+--------------+
8250
Asynchronous serial interface controller.
+-----+--+-----+
D0 |1 +--+ 40| VCC
D1 |2 39| /RI
D2 |3 38| /DCD
D3 |4 37| /DSR
D4 |5 36| /CTS
D5 |6 35| MR
D6 |7 34| /OUT1
D7 |8 33| /DTR
RCLK |9 32| /RTS
RxD |10 16450 31| /OUT2
TxD |11 8250 30| INTR
CE0 |12 29|
CE1 |13 28| A0
/CE2 |14 27| A1
/CLKOUT |15 26| A2
X1 |16 25| /ADS
X0 |17 24| CSOUT
/WR |18 23| DDIS
WR |19 22| RD
GND |20 21| /RD
+--------------+
8251
Universal asynchronous receiver/transmitter.
+-----+--+-----+
D2 |1 +--+ 28| D1
D3 |2 27| D0
RxD |3 26| VCC
GND |4 25| /RxC
D4 |5 24| /DTR
D5 |6 23| /RTS
D6 |7 8251 22| /DSR
D7 |8 21| RST
/TxC |9 20| CLK
/WR |10 19| TxD
/CE |11 18| TxEMPTY
C//D |12 17| /CTS
/RD |13 16| SYCDET BD
RxRDY |14 15| TXRDY
+--------------+
8253, 8254
Programmable interval timer/counter.
+-----+--+-----+
D7 |1 +--+ 24| VCC
D6 |2 23| /WR
D5 |3 22| /RD
D4 |4 21| /CE
D3 |5 20| A1
D2 |6 8253 19| A0
D1 |7 8254 18| CLK2
D0 |8 17| OUT2
CLK0 |9 16| G2
OUT0 |10 15| CLK1
G0 |11 14| G1
GND |12 13| OUT1
+--------------+
8255
Parallel Peripheral Interface.
+-----+--+-----+
PA3 |1 +--+ 40| PA4
PA2 |2 39| PA5
PA1 |3 38| PA6
PA0 |4 37| PA7
/RD |5 36| /WR
/CE |6 35| RST
GND |7 34| D0
A1 |8 33| D1
A0 |9 32| D2
PC7 |10 8255 31| D3
PC6 |11 30| D4
PC5 |12 29| D5
PC4 |13 28| D6
PC0 |14 27| D7
PC1 |15 26| VCC
PC2 |16 25| PB7
PC3 |17 24| PB6
PB0 |18 23| PB5
PB1 |19 22| PB4
PB2 |20 21| PB3
+--------------+
Z8530, Z8531
Zilog Serial Communications Controller.Z8531 has no synchronous capabilities.
+-----+--+-----+
D1 |1 +--+ 40| D0
D3 |2 39| D2
D5 |3 38| D4
D7 |4 37| D6
/INT |5 36| /RD
IEO |6 35| /WR
IEI |7 34| A0 A/B
/INTAK |8 33| /CE
VCC |9 32| A1 D/C
/W_REQA |10 Z8530 31| GND
/SYNCA |11 SCC 30| /W_REQB
/RTxCA |12 29| /SYNCB
RxDA |13 28| /RTxCB
/TRxCA |14 27| RxDB
TxDA |15 26| /TRxCB
/DTR_REQA |16 25| TxDB
/RTSA |17 24| /DTR_REQB
/CTSA |18 23| /RTSB
/DCDA |19 22| /CTSB
CLK |20 21| /DCDB
+--------------+
8574, 8574A
I2C parallel I/O expander.I2C address is 0100xxx for the 8574 and 0111xxx for the 8574A, where xxx can be specified by the A0-2 inputs.
+---+--+---+
A0 |1 +--+ 16| VCC
A1 |2 15| SDA
A2 |3 14| SCL
P0 |4 13| /INT
P1 |5 8574 12| P7
P2 |6 11| P6
P3 |7 10| P5
GND |8 9| P4
+----------+
8584
I2C bus controller.Bus controller ties to either Z80-style bus or to 68000-style bus, and determines the mode from the first few cycles.
+---+--+---+
CLK |1 +--+ 20| VCC
SDAo SDA |2 19| /RST /STB
SCLo SCL |3 18| /WR R//W
SDAi /IACK |4 17| /CS
SCLi /INT |5 16| /RD /DTACK
A0 |6 8584 15| D7
D0 |7 14| D6
D1 |8 13| D5
D2 |9 12| D4
GND |10 11| D3
+----------+
16450
Asynchronous serial interface controller.
+-----+--+-----+
D0 |1 +--+ 40| VCC
D1 |2 39| /RI
D2 |3 38| /DCD
D3 |4 37| /DSR
D4 |5 36| /CTS
D5 |6 35| MR
D6 |7 34| /OUT1
D7 |8 33| /DTR
RCLK |9 32| /RTS
RxD |10 16450 31| /OUT2
TxD |11 8250 30| INTR
CE0 |12 29|
CE1 |13 28| A0
/CE2 |14 27| A1
/CLKOUT |15 26| A2
X1 |16 25| /ADS
X0 |17 24| CSOUT
/WR |18 23| DDIS
WR |19 22| RD
GND |20 21| /RD
+--------------+
16550
Asynchronous serial interface controller with DMA support and 16-byte FIFOs.
+-----+--+-----+
D0 |1 +--+ 40| VCC
D1 |2 39| /RI
D2 |3 38| /DCD
D3 |4 37| /DSR
D4 |5 36| /CTS
D5 |6 35| MR
D6 |7 34| /OUT1
D7 |8 33| /DTR
RCLK |9 32| /RTS
RxD |10 16550 31| /OUT2
TxD |11 30| INTR
CE0 |12 29| /RXRDY
CE1 |13 28| A0
/CE2 |14 27| A1
/CLKOUT |15 26| A2
X1 |16 25| /ADS
X0 |17 24| /TXRDY
/WR |18 23| DDIS
WR |19 22| RD
GND |20 21| /RD
+--------------+
16552
Dual asynchronous serial interface controller with DMA support and 16-byte FIFOs, and an 8-bit parallel printer port.PLCC68 +---------------+---------------+---------------+---------------+ | 10 2TxD | 27 GND | 44 1BD | 61 /2RXRDY | | 11 /2DTR | 28 /1CTS | 45 1INT | 62 2RxD | | 12 /2RTS | 29 /1DCD | 46 PD7 | 63 /ERR | | 13 /2CTS | 30 /1RI | 47 PD6 | 64 VCC | | 14 D0 | 31 /1DSR | 48 PD5 | 65 SLCT | | 15 D1 | 32 /1CE | 49 PD4 | 66 BUSY | | 16 D2 | 33 A2 | 50 PD3 | 67 PE | | 17 D3 | 34 A1 | 51 PD2 | 68 /ACK | | 18 D4 | 35 A0 | 52 PD1 | 1 PEMD | | 19 D5 | 36 /WR | 53 PD0 | 2 2TR | | 20 D6 | 37 /RD | 54 GND | 3 /2CE | | 21 D7 | 38 /PCE | 55 /STB | 4 CLK | | 22 /1TXRDY | 39 /RST | 56 /AFD | 5 /2DSR | | 23 VCC | 40 VCC | 57 /INIT | 6 /2RI | | 24 /1RTS | 41 1RxD | 58 /SLIN | 7 GND | | 25 /1DTR | 42 /2TXRDY | 59 PINT | 8 /2DCD | | 26 1TxD | 43 /ENIRQ | 60 2INT | 9 /1RXRDY | +---------------+---------------+---------------+---------------+
16554
Quad asynchronous serial interface controller with DMA support and 16-byte FIFOs.PLCC68 +---------------+---------------+---------------+---------------+ | 10 /1DSR | 27 /2DCD | 44 /3DSR | 61 /4DCD | | 11 /1CTS | 28 /2RI | 45 /3CTS | 62 /4RI | | 12 /1DTR | 29 2RxD | 46 /3DTR | 63 4RxD | | 13 VCC | 30 VCC | 47 VCC | 64 VCC | | 14 /1RTS | 31 | 48 /3RTS | 65 /INTN | | 15 1INT | 32 A2 | 49 3INT | 66 D0 | | 16 /1CE | 33 A1 | 50 /3CE | 67 D1 | | 17 1TxD | 34 A0 | 51 3TxD | 68 D2 | | 18 /WR | 35 X1 | 52 /RD | 1 D3 | | 19 2TxD | 36 X2 | 53 4TxD | 2 D4 | | 20 /2CE | 37 RST | 54 /4CE | 3 D5 | | 21 2INT | 38 /RXRDY | 55 4INT | 4 D6 | | 22 /2RTS | 39 /TXRDY | 56 /4RTS | 5 D7 | | 23 GND | 40 GND | 57 GND | 6 GND | | 24 /2DTR | 41 3RxD | 58 /4DTR | 7 1RxD | | 25 /2CTS | 42 /3RI | 59 /4CTS | 8 /1RI | | 26 /2DSR | 43 /3DCD | 60 /4DSR | 9 /1DCD | +---------------+---------------+---------------+---------------+
68153
680x0 family bus interrupter.
+-----+--+-----+
VCC |1 +--+ 40| A3
R//W |2 39| A2
/CE |3 38| A1
/DTACK |4 37| D7
/IACK |5 36| D6
/IACKi |6 35| D5
/IACKo |7 34| D4
/IRQ1 |8 33| D3
GND |9 32| D2
GND |10 31| GND
VCC |11 68153 30| VCC
/IRQ2 |12 29| D1
/IRQ3 |13 28| D0
/IRQ4 |14 27| /INTAE
/IRQ5 |15 26| INTAL1
/IRQ6 |16 25| INTAL0
/IRQ7 |17 24| /INT3
CLK |18 23| /INT2
/INT0 |19 22| /INT1
GND |20 21| VCC
+--------------+
68230 (PLCC)
680x0 family Parallel Interface and Timer (PI/T)PLCC52 +---------------+---------------+---------------+---------------+ | 8 | 21 | 34 PC0 | 47 R//W | | 9 PA4 | 22 PB2 | 35 PC1 | 48 D0 | | 10 PA5 | 23 PB3 | 36 PC2 TIN | 49 D1 | | 11 PA6 | 24 PB4 | 37 PC3 TOUT | 50 D2 | | 12 PA7 | 25 PB5 | 38 PC4 /DMARQ | 51 D3 | | 13 VCC | 26 PB6 | 39 PC5 /PIRQ | 52 D4 | | 14 H1 | 27 PB7 | 40 PC6 /PIACK | 1 D5 | | 15 H2 | 28 A4 | 41 PC7 /TIACK | 2 D6 | | 16 H3 | 29 A3 | 42 GND | 3 D7 | | 17 H4 | 30 A2 | 43 /RST | 4 PA0 | | 18 PB0 | 31 A1 | 44 CLK | 5 PA1 | | 19 PB1 | 32 A0 | 45 /CE | 6 PA2 | | 20 | 33 | 46 /DTACK | 7 PA3 | +---------------+---------------+---------------+---------------+
68230 (DIP)
680x0 family Parallel Interface and Timer (PI/T)
+-----+--+-----+
D5 |1 +--+ 48| D4
D6 |2 47| D3
D7 |3 46| D2
PA0 |4 45| D1
PA1 |5 44| D0
PA2 |6 43| R//W
PA3 |7 42| /DTACK
PA4 |8 41| /CE
PA5 |9 40| CLK
PA6 |10 39| /RST
PA7 |11 38| GND
VCC |12 37| PC7 /TIACK
H1 |13 68230 36| PC6 /PIACK
H2 |14 35| PC5 /PIRQ
H3 |15 34| PC4 /DMAREQ
H4 |16 33| PC3 TOUT
PB0 |17 32| PC2 TIN
PB1 |18 31| PC1
PB2 |19 30| PC0
PB3 |20 29| RS0
PB4 |21 28| RS1
PB5 |22 27| RS2
PB6 |23 26| RS3
PB7 |24 25| RS4
+--------------+
68452
680x0 family bus arbiter.
+-----+--+-----+
VCC |1 +--+ 28| GND
VCC |2 27| /BCLR
/GT4 |3 26| /GT0
/REQ3 |4 25| /REQ4
/GT5 |5 24| /GT1
/REQ2 |6 23| /REQ5
/REQ1 |7 22| /REQ6
GND |8 68452 21| /REQ7
/REQ0 |9 20| /BG
/LEI |10 19| /BR
/BGACK |11 18| /GT2
/GT7 |12 17| /GT3
/GT6 |13 16| VCC
GND |14 15| VCC
+--------------+
68901 (DIP)
680x0 multi-function peripheral.
+-----+--+-----+
R//W |1 +--+ 48| /CE
RS0 |2 47| /DS
RS1 |3 46| /DTACK
RS2 |4 45| /IACK
RS3 |5 44| D7
RS4 |6 43| D6
TC |7 42| D5
SO |8 41| D4
SI |9 40| D3
RC |10 39| D2
VCC |11 38| D1
|12 37| D0
TAO |13 68901 36| GND
TBO |14 35| CLK
TCO |15 34| /IEI
TDO |16 33| /IEO
X1 |17 32| /IRQ
X0 |18 31| /RR
TAI |19 30| /TR
TBI |20 29| INT7
/RST |21 28| INT6
INT0 |22 27| INT5
INT1 |23 26| INT4
INT2 |24 25| INT3
+--------------+
68901 (PLCC)
680x0 multi-function peripheral.PLCC52 +---------------+---------------+---------------+---------------+ | 8 TC | 21 | 34 /TR | 47 D6 | | 9 SO | 22 TAI | 35 /RR | 48 D7 | | 10 SI | 23 TBI | 36 /IRQ | 49 /IACK | | 11 RC | 24 /RST | 37 /IEO | 50 /DTACK | | 12 VCC | 25 INT0 | 38 /IEI | 51 /DS | | 13 | 26 INT1 | 39 CLK | 52 /CE | | 14 | 27 INT2 | 40 GND | 1 | | 15 TAO | 28 INT3 | 41 D0 | 2 R//W | | 16 TBO | 29 INT4 | 42 D1 | 3 RS0 | | 17 TCO | 30 INT5 | 43 D2 | 4 RS1 | | 18 TDO | 31 INT6 | 44 D3 | 5 RS2 | | 19 X1 | 32 INT7 | 45 D4 | 6 RS3 | | 20 X0 | 33 | 46 D5 | 7 RS4 | +---------------+---------------+---------------+---------------+
146818
Real-time clock with 50 bytes RAM.
+-----+--+-----+
|1 +--+ 24| VCC
X1 |2 23| SQW
X2 |3 22|
AD0 |4 21| /RCLR
AD1 |5 20| VBAT
AD2 |6 146818 19| /INT
AD3 |7 18| /RST
AD4 |8 17| DS
AD5 |9 16| GND
AD6 |10 15| R//W
AD7 |11 14| AS
GND |12 13| /CE
+--------------+
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