74HC139 DIP IC Logic Dual 2 To 4 Line Decoder / Demultiplexer (74HC139 IC)

The 74HC139 is a dual 2 to 4 line decoder and demultiplexer integrated circuit designed for address decoding and signal routing in digital electronic systems. It contains two independent decoder sections that convert 2 bit binary input signals into one of four active output lines.

This IC belongs to the high speed CMOS logic family and provides reliable decoding performance with low power consumption. Each decoder includes an enable input allowing flexible control and easy cascading in larger digital systems. The DIP package allows convenient integration into breadboard prototypes and PCB based circuit designs.

Key Features

• Dual 2 to 4 line decoder and demultiplexer
• Two independent decoder sections
• Converts 2 bit input to one of four outputs
• Enable input for controlled operation
• High speed CMOS logic family
• Low power consumption with reliable switching
• DIP package suitable for prototyping and PCB mounting

Specifications

• IC Model = 74HC139
• Logic Type = Dual 2 to 4 line decoder demultiplexer
• Decoder Sections = 2
• Input Lines Per Section = 2
• Output Lines Per Section = 4
• Logic Family = HC CMOS
• Package Type = DIP
• Pin Count = 16
• Operating Voltage = 2V to 6V

Interfaces

• A1 = Address input bit 0 section 1
• B1 = Address input bit 1 section 1
• G1 = Enable input section 1
• Y10 = Output line 0 section 1
• Y11 = Output line 1 section 1
• Y12 = Output line 2 section 1
• Y13 = Output line 3 section 1
• A2 = Address input bit 0 section 2
• B2 = Address input bit 1 section 2
• G2 = Enable input section 2
• Y20 = Output line 0 section 2
• Y21 = Output line 1 section 2
• Y22 = Output line 2 section 2
• Y23 = Output line 3 section 2
• VCC = Power supply
• GND = Ground