SNJ54AS74AJ

Flip Flops Overview

The SNJ54AS74AJ is a military-grade dual D-type flip-flop from the Texas Instruments 54AS series. It features positive-edge triggering and TTL-compatible inputs and outputs. The device operates within a supply voltage range of 4.5V to 5.5V and supports a propagation delay of 9ns. It is housed in a 14-CDIP package and functions reliably across an extended temperature range of -55°C to 125°C.

Flip Flops Feature Summary

• Military-grade reliability with ceramic packaging for harsh environments
• Dual positive-edge triggered D-type flip-flop architecture
• TTL-compatible input and output logic levels

Flip Flops Applications

• Aerospace and defense digital systems
• High-reliability military computing hardware
• Spacecraft data processing circuits

Flip Flops Procurement Notes

Verify that the part number includes the 'J' suffix, which denotes the ceramic CDIP package required for military specifications. Confirm that the manufacturer source is authorized to supply 54-series components, as these are distinct from commercial 74-series equivalents. Ensure documentation certifies compliance with specific military environmental standards.

Flip Flops Selection Notes

Select this component when high-speed switching (9ns) is required alongside extreme temperature tolerance (-55°C to 125°C). The ceramic package provides superior hermetic sealing compared to plastic variants. Choose over standard 74AS74 only if military qualification and radiation hardness are mandatory requirements.

Flip Flops Part Context

This part belongs to the SN54/74AS family, representing Advanced Schottky logic technology. The 54-series designation indicates military-grade performance and wider operating temperatures compared to the commercial 74-series. The AS series offers significantly faster switching speeds than previous LS or S families while maintaining similar power consumption profiles.

Flip Flops Replacement Considerations

SN54AS74AJ is the direct commercial equivalent. SN54AS74AW is available in a flatpack variant. SN74AS74AN is the commercial plastic DIP version but lacks military temperature ratings.