SN74AS74D

Flip Flops Overview

The SN74AS74D is a dual D-type flip-flop from Texas Instruments' Advanced Schottky (AS) logic family, housed in a 14-pin DIP package. It features separate set and reset inputs for asynchronous control of the Q and not-Q outputs. The device operates within a standard VCC range of 4.5V to 5.5V. Key electrical characteristics include a propagation delay of 2.0ns and a power dissipation of 36mW per gate. It supports high-speed digital applications requiring fast switching times and low power consumption compared to standard TTL families.

Flip Flops Feature Summary

• Advanced Schottky technology provides high speed with low power dissipation
• Asynchronous set and reset inputs allow direct control of output states
• Complies with JEDEC standards for noise immunity and switching performance

Flip Flops Applications

• High-speed data storage registers
• Shift register configurations
• Timing control circuits

Flip Flops Procurement Notes

Verify the specific ordering suffix 'D' corresponds to the plastic DIP package configuration. Confirm that the manufacturer identification matches Texas Instruments or an authorized licensee. Check for date codes and lot numbers to ensure component authenticity. Review the datasheet revision history for any updates to electrical characteristics or recommended operating conditions prior to final design integration.

Flip Flops Selection Notes

Select this component when design requirements demand faster switching speeds than standard LS or S series devices while maintaining lower power consumption than older ECL technologies. Consider the 14-pin DIP footprint compatibility if replacing legacy designs. Ensure voltage levels align with standard 5V logic systems. Evaluate thermal management needs based on the specified power dissipation per gate under maximum load conditions.

Flip Flops Part Context

This part belongs to the Texas Instruments SN74ASxx series, representing the Advanced Schottky logic family. It offers improved speed-power product over previous generations. The 'D' suffix denotes the specific physical package type. This series was designed to bridge the gap between standard TTL performance and higher-speed alternatives, providing a balanced solution for mid-1980s digital system architectures.

Flip Flops Replacement Considerations

SN74S74D: Similar function but slower speed and higher power consumption. SN74LS74D: Slower speed but lower power consumption. SN74AS74N: Same electrical performance but in a different package style.