74LS133 13-Input NAND 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. 74LS133 Contain 1 NAND Gate with 13 Inputs and Single Output.

74LS133 Features

  • VCC Supply Voltage = 5.5V
  • Operating Ambient Temperature Range = 125*C
  • Output Current — High = -0.4mA
  • Output Current — Low = 4mA

74LS133 Specifications

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

74LS133 Pinout Diagram

74LS133 Pin Description

Pin NoPin NameDescription
1AInput 1 Of NAND Gate 1
2BInput 2 Of NAND Gate 1
3CInput 3 Of NAND Gate 1
4DInput 4 Of NAND Gate 1
5EInput 5 Of NAND Gate 1
6FInput 6 Of NAND Gate 1
7GInput 7 Of NAND Gate 1
8GNDGround Pin
9ZOutput Of NAND Gate
10HInput 8 Of NAND Gate 1
11IInput 9 Of NAND Gate 1
12JInput 10 Of NAND Gate 1
13KInput 11 Of NAND Gate 1
14LInput 12 Of NAND Gate 1
15MInput 13 Of NAND Gate 1
16VCCPositive Supply

74LS133 Circuit


  • Used in alarm circuits through light detection radiation
  • Employed in freezer warning buzzer devices
  • NAND logic gates are utilized in automatic temperature regulation circuits
  • These are used for analyzing the status of the sensor that is connected to various doors and windows.

74LS133 Alternative Equivalent

74LS01, 74LS10, 74LS20

Download 74LS133 13-INPUT NAND GATE Datasheet from the link given below.