SN74ALS137ADR

Signal Switches, Multiplexers, Decoders Overview

The SN74ALS137ADR is a 3-line to 8-line decoder/demultiplexer with latched address inputs, manufactured by Texas Instruments in the ALS logic family. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range of 0°C to 70°C. The device features two independent output enables (G1 and G2) that control outputs regardless of latch state. Propagation delays from select inputs to outputs are specified between 5 ns and 20 ns depending on conditions.

Signal Switches, Multiplexers, Decoders Feature Summary

• Integrates a 3-bit address latch to store selection data independently of subsequent input changes
• Provides two separate output enable controls for simplified cascading and bus-oriented system management
• Designed to implement glitch-free decoding in strobed applications

Signal Switches, Multiplexers, Decoders Applications

• Strobed address decoding in bus-oriented systems
• Glitch-free decoder implementations requiring stored addresses
• Cascaded decoding configurations utilizing dual output enables

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering suffix 'D' corresponds to the Small-Outline package variant when sourcing. Confirm the component status against current manufacturer life cycle documentation, as availability may vary. Ensure environmental compliance requirements align with the product specifications before finalizing procurement orders.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component for designs requiring stable address storage during active decoding cycles. The dual output enables facilitate complex bus architectures without external gating logic. Verify that the required propagation delay characteristics fit within the system timing constraints for the target application environment.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the SN74ALS137A series, which combines decoder functionality with address latching. It is distinct from standard decoders by its ability to ignore further address changes once the latch-enable signal transitions high. The device is part of the broader ALS logic family designed for improved speed and power consumption compared to earlier standards.

Signal Switches, Multiplexers, Decoders Replacement Considerations

SN74ALS137AN