74HCT138 SMD IC SOIC 16 3 to 8 Line Decoder Demultiplexer TTL Compatible High Speed CMOS Logic IC (74HCT138 IC)

The 74HCT138 is a high speed CMOS 3 to 8 line decoder/demultiplexer with TTL compatible input levels. It converts a 3 bit binary input into one of eight active low outputs and is widely used for address decoding and signal routing in digital systems.

Key Features -

• 3 to 8 line decoder demultiplexer
• Active low outputs
• TTL compatible input levels (HCT series)
• Three enable inputs for flexible control
• High speed CMOS logic performance
• Low power consumption
• SMD SOIC 16 package

Specifications -

• IC type - 3 to 8 decoder demultiplexer
• Logic family - HCT CMOS TTL compatible
• Package type - SOIC 16 SMD
• Supply voltage - approx 4.5V to 5.5V
• Input type - TTL compatible
• Output type - active low outputs
• Propagation delay - approx 10ns to 15ns typical
• Operating temperature - approx -40 to 85 degree C

Applications -

• Memory address decoding
• Data routing and demultiplexing
• Microcontroller interfacing
• Digital logic circuits
• Industrial control systems
• Embedded electronics

Pinout Configuration -

• A B C - select input lines
• G1 - enable input active high
• G2A G2B - enable inputs active low
• Y0 to Y7 - decoded outputs active low
• Vcc - power supply
• GND - ground