74LS11 Triple 3-input AND Gate


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. 74LS11 Triple 3-input AND Gate contain three independent 3-input AND Gates

74LS11 Features

  • Three Independent AND Gates
  • Standard Pin Configuration
  • Fast Switching Times
  • Operating Temperature up to 70°C
  • Standard TTL Switching Voltages

74LS11 Specifications

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

74LS11 Pinout Diagram

74LS11 Pin Description

Pin NoPin NameDescription
1A1AND Gate 1 Input 1
2B1 AND Gate 1 Input 2
3A2 AND Gate 2 Input 1
4B2 AND Gate 2 Input 2
5C2 AND Gate 2 Input 3
6D2 AND Gate 2 Output
8D3 AND Gate 3 Output
9A3 AND Gate 3 Input 1
10B3 AND Gate 3 Input 2
11C3 AND Gate 3 Input 3
12D1 AND Gate 1 Output
13C1 AND Gate 1 Input 3
14VCCPositive Supply

74LS11 Circuit


  • Data transmission control in digital electronics
  • Digital measuring instruments
  • Alarm circuits

74LS11 Alternative Equivalent

74LS08, 74LS09, 74LS21

Download 74LS11 Triple 3-input AND Gate Datasheet from the link given below.