DM74ALS137M

Overview

The DM74ALS137M is a 3-to-8 line decoder/demultiplexer manufactured by onsemi, housed in a 16-lead Small Outline Integrated Circuit (SOIC) package. It integrates address latches on the three select inputs (A, B, C) and features three enable controls (G1, G2, GL). The device operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature range of 0°C to +70°C. Propagation delays from address inputs to outputs are specified between 52ns and 62ns.

Feature Summary

• Combines a 3-to-8 decoder with 3-bit address latching for strobed applications
• Incorporates three independent enable inputs to simplify system cascading
• Utilizes Advanced Oxide-Isolated Schottky (ALS) process technology

Applications

• Glitch-free decoders in bus-oriented systems
• Strobed or stored-address decoding applications
• System design requiring latchable address inputs

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm that the specific ordering code matches the required package variant, as suffixes indicate different packaging options such as tape and reel. Ensure compliance with RoHS standards and check for any product change notifications relevant to the manufacturing date code before procurement.

Selection Notes

Select this component when a decoder requires address storage to prevent glitches during bus transitions. The ALS logic family offers lower power dissipation compared to standard TTL while maintaining compatible speed. Verify that the SOIC package dimensions fit the PCB layout constraints and that the electrical characteristics meet the system's voltage and current requirements.

Part Context

This part belongs to the 74ALS series of logic integrated circuits, specifically designed for high-speed digital applications requiring low power consumption. The DM74ALS137M is produced by onsemi, formerly Fairchild Semiconductor, and represents a specialized variant within the broader decoder and demultiplexer category, distinguished by its integrated latching capability.

Replacement Considerations

Public confirmed substitute part numbers: SN74ALS137AN.