SNJ54ALS574AFK

Flip Flops Overview

The SNJ54ALS574AFK is an octal D-type edge-triggered flip-flop with three-state outputs from the Texas Instruments ALS logic family. It features a ceramic quad flatpack (CQCC20) package suitable for high-reliability applications. The device operates with a supply voltage range of 4.5 V to 5.5 V and includes non-inverting data inputs. Key electrical characteristics include a propagation delay of 14 ns, a high-level output current of -2.6 mA, and a low-level output current of 24 mA. It supports a wide operating temperature range from -55°C to +125°C, ensuring stability in demanding environments.

Flip Flops Feature Summary

• Octal D-type edge-triggered flip-flop architecture with eight independent storage elements
• Three-state outputs allowing direct bus connection without external buffers
• Ceramic quad flatpack construction for enhanced thermal and mechanical reliability
• Compliant with MIL-STD-883 standards for military-grade performance

Flip Flops Applications

• Military aerospace systems requiring radiation-hardened or high-reliability logic
• Defense communication equipment operating in extreme temperature conditions
• High-reliability industrial control systems with strict environmental constraints
• Spacecraft onboard data handling and telemetry processing units

Flip Flops Procurement Notes

Verify that the part number suffix AFK corresponds to the ceramic quad flatpack variant with gold contact pads. Confirm compliance with MIL-STD-883 testing requirements if specified for your application. Ensure the supplier provides traceability documentation including lot codes and manufacturing origin. Check for any specific handling instructions related to ceramic packages and lead finish compatibility during assembly processes.

Flip Flops Selection Notes

Select this component when high reliability and wide temperature operation are critical. The ALS series offers faster switching speeds compared to standard LS logic while maintaining compatible power consumption levels. Consider the CQCC20 package size and pin configuration against available board space. Evaluate the need for three-state outputs to simplify bus architecture design in complex digital systems.

Flip Flops Part Context

This part belongs to the SN54/74ALS574 family of octal D-type flip-flops. The SN54 prefix indicates military-grade qualification, distinguishing it from commercial SN74 variants. The ALS designation signifies Advanced Low-Power Schottky technology, providing improved speed-power product. The AFK suffix specifically denotes the ceramic flatpack package with gold-plated leads, essential for harsh environment applications.

Flip Flops Replacement Considerations

SN54ALS574FK is a similar military-grade ceramic variant within the same family. SN74ALS574BNSR serves as a commercial equivalent but lacks the extended temperature range and reliability certifications. Verify pinout compatibility and electrical specifications before substituting with other octal D-type flip-flops from different manufacturers.