SNJ54LS279AFK

$24.12

Description：IC FF QUAD 20LCCC
Series：*
Mfr：Texas Instruments
Package：Bulk

SKU:9bb9041c1226 Category: Latches Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC FF QUAD 20LCCC
Series：*
Mfr：Texas Instruments
Package：Bulk
Logic Type：-
Circuit：-
Output Type：-
Voltage - Supply：-
Independent Circuits：-
Delay Time - Propagation：-
Current - Output High, Low：-
Operating Temperature：-
Mounting Type：-
Package / Case：-
Supplier Device Package：-
Grade：-
Qualification：-

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SNJ54LS279AFK

Overview

The SNJ54LS279AFK is a military-grade quadruple S-R latch from Texas Instruments, housed in a 20-pin Leadless Ceramic Chip Carrier (LCCC) package. It operates within an extended temperature range of -55°C to 125°C and features ceramic construction with gold-plated leads for high reliability. The device contains four independent latches, each with Set and Reset inputs, designed for robust performance in demanding environments.

Feature Summary

Military-grade qualification ensuring reliability for defense applications
Extended operating temperature range suitable for harsh environments
Ceramic package construction providing enhanced durability

Applications

Military and defense electronic systems
High-reliability aerospace data storage circuits
Industrial control systems requiring extreme temperature tolerance

Procurement Notes

Verify the specific ordering suffix FK confirms the LCCC package and military grade status. Confirm RoHS exemption status as military parts often differ from commercial standards. Ensure compatibility with existing board layouts for the 20-pin ceramic carrier. Validate supply chain authenticity through authorized distributors to prevent counterfeits.

Selection Notes

Select this component when military certification and wide temperature operation are mandatory. The LCCC package offers superior thermal and mechanical stability compared to plastic variants. Consider pin count and footprint requirements carefully as the 20-pin configuration differs from standard DIP options. Evaluate cost implications against commercial SN74LS279A alternatives if military specs are not required.

Part Context

This part belongs to the SN54LS279A family of quadruple S-R latches. The SN54 prefix denotes military-grade devices, while LS indicates Low-power Schottky TTL logic technology. The AFK suffix specifies the active production status, ceramic material, and LCCC package type with gold contacts.