74LS153 Dual 4 to 1 Selector/Multiplexer


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.74LS153 monolithic, data selectors/multiplexers contain inverters and drivers to supply fully com- elementary, on-chip, binary decoding data selection to the AND-OR gates. Separate strobe inputs are provided for each of the two four-line sections.

74LS153 Features

  • Contains Two Multiplexers To Select Data Inputs Based on Data Select Inputs
  • Performs Parallel to Serial Conversion
  • Low Power
  • Operating Temperature up to 70°C
  • Standard TTL Switching Voltages

74LS153 Specifications

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

74LS153 Pinout Diagram

74LS153 Pin Description

Pin NoPin NameDescription
1EaEnable Pin a
2S1Selection Bit of b
3I3aInput Pin 3 of a
4I2aInput Pin 2 of a
5I1aInput Pin 1 of a
6I0aInput Pin 0 of a
7ZaOutput Pin A
9ZbOutput Pin B
10I0bInput Pin 0 of b
11I1bInput Pin 1 of b
12I2bInput Pin 2 of b
13I3bInput Pin 3 of b
14S0Selection Bit of a
15EbEnable Pin b
16VCCPositive Supply

74LS153 Circuit


  • Multiple data can be transmitted using a single line

74LS153 Alternative Equivalent

74LS151, 74LS258

Download 74LS153 Dual 4 to 1 Selector/Multiplexer Datasheet from the link given below.