SN74ALS153N

Overview

The SN74ALS153N is a dual 1-of-4 data selector/multiplexer in a 16-pin plastic DIP package. It contains inverters and drivers for full binary decoding to AND-OR gates with separate strobe inputs for each section. Operating voltage ranges from 4.5 V to 5.5 V. High-level output current is -2.6 mA, while low-level output current reaches 24 mA. Propagation delay from select inputs (A or B) to output is 5 ns to 21 ns, and from data inputs to output is 3 ns to 10 ns.

Feature Summary

• Contains two independent 1-of-4 multiplexing sections sharing common select lines
• Includes internal inverters and drivers for complete binary decoding of data selection
• Features dedicated strobe inputs for individual section enablement and cascading

Applications

• Multiplexing multiple signal lines into a single output channel
• Parallel-to-serial data conversion circuits
• Cascaded configurations for expanding input line capacity

Procurement Notes

Verify the specific ordering suffix matches the required package type, as the SN74ALS153N designation corresponds to the PDIP variant. Confirm RoHS compliance status and lead finish details via the official Package Option Addendum. Ensure the procurement request specifies the correct temperature range and packaging format to match design requirements.

Selection Notes

Select this component when dual independent 4-line multiplexing is required within a single package. The ALS logic family offers a balance of speed and power consumption suitable for standard commercial applications. Verify that the 24 mA low-level output current capability meets the load requirements of the downstream circuitry.

Part Context

This device belongs to the Texas Instruments SN74ALS series of advanced low-power Schottky TTL logic components. It serves as a functional equivalent to other industry-standard dual 4-input multiplexers. The part is designed for general-purpose digital logic applications requiring reliable data routing and selection capabilities.

Replacement Considerations

The SN74AS153N is a documented alternative within the same datasheet offering higher drive currents. Verify pin compatibility and electrical characteristics before substitution.