SNJ54HC253J

Signal Switches, Multiplexers, Decoders Overview

The SNJ54HC253J is a military-grade dual 4-line to 1-line data selector/multiplexer manufactured by Texas Instruments. It features two independent multiplexers with full binary decoding and strobe-controlled 3-state outputs. The device operates within a supply voltage range of 2 V to 6 V and supports an operating temperature range from -55 °C to 125 °C. It utilizes a 16-pin ceramic dual in-line package (CDIP). Key electrical characteristics include a maximum input current of 1 μA, high-current inverting outputs capable of driving up to 15 LSTTL loads, and typical propagation delays ranging from 9 ns to 38 ns depending on load conditions.

Signal Switches, Multiplexers, Decoders Feature Summary

• Contains two independent data selectors with full binary decoding for selecting one of four data sources
• Features strobe-controlled 3-state outputs allowing direct interface with bus-organized systems
• Provides wide operating voltage flexibility suitable for various logic families
• Designed for high-reliability applications with extended industrial temperature ratings

Signal Switches, Multiplexers, Decoders Applications

• Multiplexing multiple data lines into a single output channel
• Parallel-to-serial data conversion in communication interfaces
• Bus-oriented system data routing and selection
• Military and aerospace digital logic control circuits

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering suffix 'J' corresponds to the 16-pin CDIP ceramic package configuration. Confirm that the component meets the required military or defense specifications if applicable, as standard catalog versions may differ in qualification status. Ensure compatibility with existing board layouts designed for dual in-line packages before procurement.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when dual independent multiplexing functionality is required in harsh environments. The HC series offers low power consumption compared to older logic families while maintaining compatible voltage levels. Consider the 3-state output capability for bus sharing applications. Verify that the 16-pin CDIP package fits the available footprint and mounting constraints of the target assembly.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the SNx4HC253 family of dual 4-line to 1-line multiplexers. It is the military-grade variant of the SN54HC253, distinguished by its extended temperature range and ruggedized packaging. The device serves as a functional equivalent to the SN54HC153 but provides 3-state outputs for enhanced bus interfacing capabilities in complex digital systems.

Signal Switches, Multiplexers, Decoders Replacement Considerations

SN54HC253J is the commercial grade equivalent with identical pinout and function but potentially different environmental qualifications.