Texas Instruments

CD74HCT238M  

Encoders, Decoders, Multiplexers & Demultiplexers

CD74HCT238M Description

The CD74HCT238M from Texas Instruments is a high-speed CMOS 3-to-8 line decoder/demultiplexer designed for surface-mount applications. Operating within a 4.5V to 5.5V supply range, this IC is part of the 74HCT series, ensuring compatibility with TTL logic levels while offering the low-power benefits of CMOS technology. Packaged in a 16-pin SOIC tube, it features a single-supply voltage source and delivers 4mA output current (both high and low), making it suitable for driving moderate loads. With REACH and RoHS3 compliance, it meets stringent environmental standards, and its MSL 1 (Unlimited) rating ensures reliability in storage and handling.

CD74HCT238M Features

• High-Speed CMOS Logic: Combines TTL compatibility with low power consumption.
• 3-to-8 Decoder/Demultiplexer: Converts 3 binary inputs into 8 mutually exclusive outputs, ideal for address decoding.
• Wide Operating Voltage (4.5V–5.5V): Stable performance across typical 5V systems.
• Balanced Output Drive (4mA sink/source): Ensures consistent signal integrity in bus-oriented applications.
• Surface-Mount (SOIC-16) Package: Compact footprint for space-constrained designs.
• Robust Compliance: RoHS3, REACH unaffected, and MSL 1 rated for industrial reliability.

CD74HCT238M Applications

• Memory Address Decoding: Efficiently selects memory blocks in microcontrollers or FPGAs.
• Data Routing: Acts as a demultiplexer to distribute signals in communication systems.
• Industrial Control Systems: Interfaces with sensors and actuators in automated environments.
• LED Matrix Driving: Controls multiple LEDs or displays via binary input patterns.
• TTL-to-CMOS Conversion: Bridges legacy TTL logic with modern CMOS circuits.

Conclusion of CD74HCT238M

The CD74HCT238M stands out for its versatility, reliability, and performance in decoding and signal distribution tasks. Its TTL-compatible inputs, low power consumption, and robust output drive make it superior to basic 74-series decoders, while its compliance with environmental standards ensures broad applicability. Ideal for embedded systems, industrial controls, and data routing, this IC is a dependable choice for engineers seeking a balance of speed, power efficiency, and integration.

CD74HCT238M Documents

Download datasheets and manufacturer documentation for CD74HCT238M

EOL :

Product Discontinuation Notification (PDF)      

Images :

Mechanical Outline Drawing      

PCN :

Product Change Notification (PDF)      

Models :

CD74HCT238M Symbol & Footprint by SnapMagic      

Product Catalogs :

Logic Guide (Rev. AB)