74HC138 DIP IC 3 To 8 Line Decoder / Demultiplexer (74HC138 IC)

The 74HC138 is a 3 to 8 line decoder and demultiplexer integrated circuit designed for address decoding and signal routing in digital electronic systems. It converts a 3 bit binary input into one of eight active output lines allowing selection of a specific output channel.

This IC belongs to the high speed CMOS logic family and provides reliable decoding performance with low power consumption. It includes three enable inputs which allow flexible control and cascading in larger digital systems. The DIP package allows easy integration into breadboard prototypes and PCB based circuit designs.

Key Features

• 3 to 8 line decoder and demultiplexer
• Selects one of eight outputs using 3 bit input
• Three enable inputs for flexible control
• High speed CMOS logic family
• Low power consumption with reliable switching
• Suitable for address decoding and data routing circuits
• DIP package suitable for prototyping and PCB mounting

Specifications

• IC Model = 74HC138
• Logic Type = 3 to 8 line decoder demultiplexer
• Input Lines = 3
• Output Lines = 8
• Logic Family = HC CMOS
• Package Type = DIP
• Pin Count = 16
• Operating Voltage = 2V to 6V

Interfaces

• A = Address input bit 0
• B = Address input bit 1
• C = Address input bit 2
• G1 = Enable input active high
• G2A = Enable input active low
• G2B = Enable input active low
• Y0 = Output line 0
• Y1 = Output line 1
• Y2 = Output line 2
• Y3 = Output line 3
• Y4 = Output line 4
• Y5 = Output line 5
• Y6 = Output line 6
• Y7 = Output line 7
• VCC = Power supply
• GND = Ground