74LS136 Quad EXCLUSIVE-OR Gate (Open Collector)


The 74LS series of integrated circuits (ICs) was one of the most popular logic families of transistor-transistor logic (TTL) logic chips. 74LS series is a bipolar, low-power Schottky IC. 74LS136 contains four independent gates, each of which performs the logic exclusive-OR function

74LS136 Features

  • Four Independent EXCLUSIVE-OR Gates
  • Open Collector Outputs for Driving Relays and Lights
  • Fast Switching Times
  • Operating Temperature up to 70°C
  • Standard TTL Switching Voltages

74LS136 Specifications

Supply Voltage4.75 – 5.25Vdc
Maximum Clock Frequency40Mhz
Power Dissipation2mW/gate @100kHz
Minimum Output Current8mA
Propagation Delay10nS
Fan Out (TTL Loads)20

74LS136 Pinout Diagram

74LS136 Pin Description

Pin NoPin NameDescription
1A1Exclusive-OR Gate 1 Input 1
2B1 Exclusive-OR Gate 1 Input 2
31Y Exclusive-OR Gate 1 Output
4A2 Exclusive-OR Gate 2 Input 1
5B2 Exclusive-OR Gate 2 Input 2
62Y Exclusive-OR Gate 2 Output
83Y Exclusive-OR Gate 3 Output
9A3 Exclusive-OR Gate 3 Input 1
10B3 Exclusive-OR Gate 3 Input 2
114Y Exclusive-OR Gate 4 Output
12A4 Exclusive-OR Gate 4 Input 1
13B4 Exclusive-OR Gate 4 Input 2
14VCCPositive Supply

74LS136 Circuit


  • Arithmetic Operations
  • Parity Checker
  • Controlled Inverter
  • Binary to Gray / Gray to Binary Conversion
  • Combinational Logic Circuit Minimization

74LS136 Alternative Equivalent


Download 74LS136 Quad EXCLUSIVE-OR Gate (Open Collector) Datasheet from the link given below.