SN74ALS158DR

Overview

The SN74ALS158DR is a quad 1-of-2 data selector/multiplexer from the Texas Instruments ALS logic family. It operates within a supply voltage range of 4.5 V to 5.5 V and features a propagation delay of 14 ns. The device is housed in a 16-pin SOIC-Narrow package, supports surface-mount installation, and functions reliably between 0°C and +70°C.

Feature Summary

• Integrates four independent multiplexers for parallel data routing
• Provides high-speed signal selection with low propagation delay
• Supports standard surface-mount assembly processes

Applications

• Data routing in digital communication systems
• Signal selection in measurement instrumentation
• Address decoding in microprocessor interfaces

Procurement Notes

Verify the 'D' suffix confirms the SOIC-16 tape-and-reel packaging configuration. Confirm RoHS compliance status through official manufacturer documentation. Ensure the component meets the required operating temperature range for the specific application environment before integration.

Selection Notes

Select this component when four independent 2-to-1 multiplexing channels are required in a compact surface-mount footprint. The ALS series offers a balance of speed and power consumption suitable for general-purpose digital logic applications requiring reliable signal switching.

Part Context

This part belongs to the SN74ALS158 series, which includes variants with different packaging options such as tube or reel configurations. The SN74ALS158D represents the same functional core but utilizes tube packaging instead of the tape-and-reel format specified by the DR suffix.

Replacement Considerations

Compatible substitutes include other quad 1-of-2 multiplexers from the 74ALS series. Verify pinout compatibility and electrical specifications against the original datasheet before substitution.