Drivers and level shifters
MAX232, MAX232A
5V RS232 transceiver.To operate, connect two capacitors to the C1 and C2 pins, one between the V- and GND, and one between V+ and GND. For the MAX232, capacitors should be 10uF, for the MAX232A 100nF is enough.
+---+--+---+
C1+ |1 +--+ 16| VCC
V+ |2 15| GND
C1- |3 14| T1out
C2+ |4 MAX 13| R1in
C2- |5 232 12| R1out
V- |6 11| T1in
T2out |7 10| T2in
R2in |8 9| R2out
+----------+
MAX242
5V RS232 transceiver with shutdown.
+---+--+---+
/EN |1 +--+ 18| /SHDN
C1+ |2 17| VCC
V+ |3 16| GND
C1- |4 15| T1out
C2+ |5 MAX 14| R1in
C2- |6 242 13| R1out
V- |7 12| T1in
T2out |8 11| T2in
R2in |9 10| R2out
+----------+
LTC485
Quad RS485 line driver.
+---+--+---+ +---+---*---+---+
1A1 |1 +--+ 16| VCC | A | EN| Y |/Y |
1Y1 |2 15| 2A2 +===+===*===+===+
/1Y1 |3 14| 2Y2 | 0 | 1 | 0 | 1 |
1EN |4 13| /2Y2 | 1 | 1 | 1 | 0 |
/1Y2 |5 75174 12| 2EN | X | 0 | Z | Z |
1Y2 |6 11| /2Y1 +---+---*---+---+
1A2 |7 10| 2Y1
GND |8 9| 2A1
+----------+
LTC485
RS485 line transceiver.
+---+--+---+ Receiver: Transmitter:
Y |1 +--+ 8| VCC +-------+---*---+ +---+---*---+---+
/OE |2 7| B | A-B |/OE| Y | | D |DEN| A | B |
DEN |3 75176 6| A +=======+===*===+ +===+===*===+===+
D |4 5| GND |>+200mV| 0 | 1 | | 0 | 1 | 0 | 1 |
+----------+ |<-200mV| 0 | 0 | | 1 | 1 | 1 | 0 |
| X | 1 | Z | | X | 0 | Z | Z |
+-------+---*---+ +---+---*---+---+
LTC488
Quad RS485 line receiver.Note the unusual ORed output enables.
+---+--+---+ +-------+---+---*---+
B1 |1 +--+ 16| VCC | A-B | OE|/OE| Y |
A1 |2 15| B4 +=======+===+===*===+
Y1 |3 14| A4 |>+200mV| 1 | X | 1 |
OE |4 13| Y4 |>+200mV| X | 0 | 1 |
Y2 |5 75173 12| /OE |<-200mV| 1 | X | 0 |
A2 |6 11| Y3 |<-200mV| X | 0 | 0 |
B2 |7 10| A3 | X | 0 | 1 | Z |
GND |8 9| B3 +-------+---+---*---+
+----------+
LTC489
Quad RS485 line receiver.
+---+--+---+ +-------+---*---+
1B1 |1 +--+ 16| VCC | A-B | OE| Y |
1A1 |2 15| 2B2 +=======+===*===+
1Y1 |3 14| 2A2 |>+200mV| 1 | 1 |
1OE |4 13| 2Y2 |<-200mV| 1 | 0 |
1Y2 |5 75175 12| 2OE | X | 0 | Z |
1A2 |6 11| 2Y1 +-------+---*---+
1B2 |7 10| 2A1
GND |8 9| 2B1
+----------+
MC1413
7-bit 50V 500mA TTL-input NPN darlington driver.The drivers need no power supply; the VDD pin is the common cathode of the seven integrated protection diodes.
+---+--+---+ +---*---+
A0 |1 +--+ 16| /Y0 | A |/Y |
A1 |2 15| /Y1 +===*===+
A2 |3 14| /Y2 | 0 | Z |
A3 |4 ULN 13| /Y3 | 1 | 0 |
A4 |5 2003 12| /Y4 +---*---+
A5 |6 11| /Y5
A6 |7 10| /Y6
GND |8 9| VDD
+----------+
1488
TTL to RS232 level shifter.The outputs are at RS-232 levels, and sometimes are connected to ground through a small capacitor (up to 470 pF) to reduce slew-rate. Note that 1B is missing (and can be taken to be 1 at all times). Usually VDD=+12 and VEE=-12.
+---+--+---+ +---+---*-----+
VEE |1 +--+ 14| VDD | A | B | Y |
1A |2 13| 4A +===+===*=====+
1Y |3 12| 4B | 0 | 0 | VDD |
2A |4 1488 11| 4Y | 0 | 1 | VDD |
2B |5 10| 3A | 1 | 0 | VDD |
2Y |6 9| 3B | 1 | 1 | VEE |
GND |7 8| 3Y +---+---*-----+
+----------+
1489
RS232 to TTL level shifter.A inputs are RS232-level inputs, C inputs are response control, a TTL signal which could be used to adjust threshhold and hysteresis but is generally unnecessary and unused. It is often tied through a 300 - 470 pF capacitor to ground.
+---+--+---+
1A |1 +--+ 14| VCC
1C |2 13| 4A
1Y |3 12| 4C
2A |4 1489 11| 4Y
2C |5 10| 3A
2Y |6 9| 3C
GND |7 8| 3Y
+----------+
ULN2003
7-bit 50V 500mA TTL-input NPN darlington driver.The drivers need no power supply; the VDD pin is the common cathode of the seven integrated protection diodes.
+---+--+---+ +---*---+
A0 |1 +--+ 16| /Y0 | A |/Y |
A1 |2 15| /Y1 +===*===+
A2 |3 14| /Y2 | 0 | Z |
A3 |4 ULN 13| /Y3 | 1 | 0 |
A4 |5 2003 12| /Y4 +---*---+
A5 |6 11| /Y5
A6 |7 10| /Y6
GND |8 9| VDD
+----------+
UDN2585
7-bit 50V 500mA TTL-input PNP (high-side) darlington driver.The drivers need no power supply; the GND pin is the common anode of the seven integrated protection diodes.
+---+--+---+ +---*---+
A0 |1 +--+ 16| /Y0 | A |/Y |
A1 |2 15| /Y1 +===*===+
A2 |3 14| /Y2 | 0 | Z |
A3 |4 UDN 13| /Y3 | 1 | 0 |
A4 |5 2585 12| /Y4 +---*---+
A5 |6 11| /Y5
A6 |7 10| /Y6
VCC |8 9| GND
+----------+
26LS31
4-bit 3-state RS422 line driver.
+---+--+---+
1A |1 +--+ 16| VCC
1Y |2 15| 4A
/1Y |3 14| 4Y
CE |4 26LS 13| /4Y
/2Y |5 31 12| /CE
2Y |6 11| /3Y
2A |7 10| 3Y
GND |8 9| 3A
+----------+
26LS32
Quad RS422 line receiver.Note the unusual ORed output enables.
+---+--+---+ +-------+---+---*---+
B1 |1 +--+ 16| VCC | A-B | OE|/OE| Y |
A1 |2 15| B4 +=======+===+===*===+
Y1 |3 14| A4 |>+200mV| 1 | X | 1 |
OE |4 26LS 13| Y4 |>+200mV| X | 0 | 1 |
Y2 |5 32 12| /OE |<-200mV| 1 | X | 0 |
A2 |6 11| Y3 |<-200mV| X | 0 | 0 |
B2 |7 10| A3 | X | 0 | 1 | Z |
GND |8 9| B3 +-------+---+---*---+
+----------+
ULN2803
8-bit 50V 500mA TTL-input NPN darlington driver.The drivers need no power supply; the VDD pin is the common cathode of the eight integrated protection diodes.
+---+--+---+ +---*---+
A0 |1 +--+ 18| /Y0 | A |/Y |
A1 |2 17| /Y1 +===*===+
A2 |3 16| /Y2 | 0 | Z |
A3 |4 ULN 15| /Y3 | 1 | 0 |
A4 |5 2803 14| /Y4 +---*---+
A5 |6 13| /Y5
A6 |7 12| /Y6
A7 |8 11| /Y7
GND |9 10| VDD
+----------+
UCN5800
4-bit 50V 500mA TTL-input NPN darlington driver with input latches and output enable.The VDD pin is the common cathode of the four integrated protection diodes.
+---+--+---+
RST |1 +--+ 14| /OE
LE |2 13| VCC
D1 |3 12| /Q1
D2 |4 UCN 11| /Q2
D3 |5 5800 10| /Q3
D4 |6 9| /Q4
GND |7 8| VDD
+----------+
UCN5801
8-bit 50V 500mA TTL-input NPN darlington driver with input latches and output enable.The VDD pin is the common cathode of the eight integrated protection diodes.
+---+--+---+
RST |1 +--+ 22| /OE
LE |2 21| VCC
D0 |3 20| /Q0
D1 |4 19| /Q1
D2 |5 18| /Q2
D3 |6 UCN 17| /Q3
D4 |7 5801 16| /Q4
D5 |8 15| /Q5
D6 |9 14| /Q6
D7 |10 13| /Q7
GND |11 12| VDD
+----------+
UCN5810
10-bit serial-in 60V 40mA TTL-input PNP (high-side) darlington driver with output latches and output enable.The VDD pin is the output supply voltage.
+---+--+---+
Q7 |1 +--+ 18| Q8
Q6 |2 17| Q9
Q5 |3 16| SOUT
CLK |4 15| VDD
GND |5 UCN 14| SIN
VCC |6 5810 13| /OE
LE |7 12| Q0
Q4 |8 11| Q1
Q3 |9 10| Q2
+----------+
UCN5815
8-bit 60V 40mA TTL-input PNP (high-side) darlington driver with input latches and output enable.The VDD pin is the output supply voltage.
+---+--+---+
RST |1 +--+ 22| /OE
LE |2 21| VCC
D0 |3 20| Q0
D1 |4 19| Q1
D2 |5 18| Q2
D3 |6 UCN 17| Q3
D4 |7 5815 16| Q4
D5 |8 15| Q5
D6 |9 14| Q6
D7 |10 13| Q7
GND |11 12| VDD
+----------+
UCN5821, UCN5822
8-bit serial-in 50/80V 500mA TTL-input NPN darlington driver with output latches and output enable.Maximum open collector voltage is 50V for UCN5821 and 80V for UCN5822.
+---+--+---+
CLK |1 +--+ 16| /Q0
SIN |2 15| /Q1
GND |3 14| /Q2
VCC |4 UCN 13| /Q3
SOUT |5 5821 12| /Q4
LE |6 5822 11| /Q5
/OE |7 10| /Q6
GND |8 9| /Q7
+----------+
UCN5890, UCN5891, UCN5895
8-bit serial-in 50/80V 250/500mA TTL-input PNP (high-side) darlington driver with output latches and output enable.Maximum open collector voltage is 50V for UCN5891 and UCN5895 and 80V for UCN5890. Output current is 250mA for UCN5895, 500mA for UCN5890 and UCN5891. The VDD pin is the output supply voltage.
+---+--+---+
GND |1 +--+ 16| SOUT
CLK |2 15| VCC
SIN |3 14| /OE
LE |4 UCN 13| VDD
Q0 |5 589x 12| Q7
Q1 |6 11| Q6
Q2 |7 10| Q5
Q3 |8 9| Q4
+----------+
DS8863, DS8963
8-bit 10V/18V 500mA TTL-input NPN darlington driver.Maximum open collector voltage is 10V for DS8863 and 18V for DS8963.
+---+--+---+ +---*---+
/Y0 |1 +--+ 18| VCC | A |/Y |
A0 |2 17| A7 +===*===+
A1 |3 16| /Y7 | 0 | Z |
/Y1 |4 DS 15| A6 | 1 | 0 |
/Y2 |5 8863 14| /Y6 +---*---+
A2 |6 8963 13| A5
/Y3 |7 12| /Y5
A3 |8 11| A4
GND |9 10| /Y4
+----------+
75173
Quad RS485 line receiver.Note the unusual ORed output enables.
+---+--+---+ +-------+---+---*---+
B1 |1 +--+ 16| VCC | A-B | OE|/OE| Y |
A1 |2 15| B4 +=======+===+===*===+
Y1 |3 14| A4 |>+200mV| 1 | X | 1 |
OE |4 13| Y4 |>+200mV| X | 0 | 1 |
Y2 |5 75173 12| /OE |<-200mV| 1 | X | 0 |
A2 |6 11| Y3 |<-200mV| X | 0 | 0 |
B2 |7 10| A3 | X | 0 | 1 | Z |
GND |8 9| B3 +-------+---+---*---+
+----------+
75174
Quad RS485 line driver.
+---+--+---+ +---+---*---+---+
1A1 |1 +--+ 16| VCC | A | EN| Y |/Y |
1Y1 |2 15| 2A2 +===+===*===+===+
/1Y1 |3 14| 2Y2 | 0 | 1 | 0 | 1 |
1EN |4 13| /2Y2 | 1 | 1 | 1 | 0 |
/1Y2 |5 75174 12| 2EN | X | 0 | Z | Z |
1Y2 |6 11| /2Y1 +---+---*---+---+
1A2 |7 10| 2Y1
GND |8 9| 2A1
+----------+
75175
Quad RS485 line receiver.
+---+--+---+ +-------+---*---+
1B1 |1 +--+ 16| VCC | A-B | OE| Y |
1A1 |2 15| 2B2 +=======+===*===+
1Y1 |3 14| 2A2 |>+200mV| 1 | 1 |
1OE |4 13| 2Y2 |<-200mV| 1 | 0 |
1Y2 |5 75175 12| 2OE | X | 0 | Z |
1A2 |6 11| 2Y1 +-------+---*---+
1B2 |7 10| 2A1
GND |8 9| 2B1
+----------+
75176
RS485 line transceiver.
+---+--+---+ Receiver: Transmitter:
Y |1 +--+ 8| VCC +-------+---*---+ +---+---*---+---+
/OE |2 7| B | A-B |/OE| Y | | D |DEN| A | B |
DEN |3 75176 6| A +=======+===*===+ +===+===*===+===+
D |4 5| GND |>+200mV| 0 | 1 | | 0 | 1 | 0 | 1 |
+----------+ |<-200mV| 0 | 0 | | 1 | 1 | 1 | 0 |
| X | 1 | Z | | X | 0 | Z | Z |
+-------+---*---+ +---+---*---+---+
75188
TTL to RS232 level shifter.The outputs are at RS-232 levels, and sometimes are connected to ground through a small capacitor (up to 470 pF) to reduce slew-rate. Note that 1B is missing (and can be taken to be 1 at all times). Usually VDD=+12 and VEE=-12.
+---+--+---+ +---+---*-----+
VEE |1 +--+ 14| VDD | A | B | Y |
1A |2 13| 4A +===+===*=====+
1Y |3 12| 4B | 0 | 0 | VDD |
2A |4 1488 11| 4Y | 0 | 1 | VDD |
2B |5 10| 3A | 1 | 0 | VDD |
2Y |6 9| 3B | 1 | 1 | VEE |
GND |7 8| 3Y +---+---*-----+
+----------+
75189
RS232 to TTL level shifter.A inputs are RS232-level inputs, C inputs are response control, a TTL signal which could be used to adjust threshhold and hysteresis but is generally unnecessary and unused. It is often tied through a 300 - 470 pF capacitor to ground.
+---+--+---+
1A |1 +--+ 14| VCC
1C |2 13| 4A
1Y |3 12| 4C
2A |4 1489 11| 4Y
2C |5 10| 3A
2Y |6 9| 3C
GND |7 8| 3Y
+----------+
75452
Dual NAND line driver.
+---+--+---+
1A |1 +--+ 8| VCC
1B |2 7| 2B
1Y |3 75452 6| 2A
GND |4 5| 2Y
+----------+
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