SN74HC139ANS

Overview

The SN74HC139ANS is a dual 2-line to 4-line decoder/demultiplexer from Texas Instruments, belonging to the HC logic family. It features a 16-pin PDIP package with through-hole mounting. The device operates on a single power supply ranging from 2V to 6V. It supports an operating temperature range of -40°C to 85°C and includes two independent decoding circuits within a single component.

Feature Summary

• Contains two independent 2-to-4 line decoders or demultiplexers
• Compatible with standard CMOS logic families
• Provides active-low outputs for decoded signals

Applications

• Address decoding in microprocessor systems
• Data distribution and routing
• Control signal generation

Procurement Notes

Verify the specific suffix 'ANS' against the manufacturer's official documentation to confirm pinout compatibility and electrical characteristics. Ensure the procurement channel provides original manufacturer packaging to maintain component integrity during storage and handling.

Selection Notes

Select this component when a design requires two separate decoding functions in a single through-hole package. It serves as a direct replacement for other 74HC139 variants in DIP packages, provided the voltage and temperature specifications align with the system requirements.

Part Context

This part belongs to the widely used 74HC series of high-speed CMOS logic devices. The SN74HC139 specifically addresses applications requiring multiple address decoding lines without consuming excessive board space compared to using individual decoder chips.

Replacement Considerations

SN74HC139N (PDIP variant)

FAQ

What is the logic family of the SN74HC139ANS?

It belongs to the HC (High-speed CMOS) logic family.

How many decoding circuits are included in this package?

The package contains two independent 2-to-4 line decoders.