SN74AHCT574PW

Flip Flops Overview

The SN74AHCT574PWR is an octal edge-triggered D-type flip-flop with three-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and features TTL-compatible inputs. The device provides a maximum propagation delay of 10.6 ns at 5 V with 50 pF load, supporting clock frequencies up to 115 MHz. It delivers output currents of ±8 mA and maintains a static current of 4 µA. Packaged in a 20-TSSOP surface-mount format, it functions reliably across an operating temperature range of -40°C to 125°C.

Flip Flops Feature Summary

• Octal configuration providing eight independent D-type flip-flops in a single package
• Three-state outputs allowing direct bus connection without external buffers
• TTL-compatible input logic levels for seamless integration with legacy systems
• High-speed performance suitable for high-frequency digital applications

Flip Flops Applications

• Parallel-to-serial data conversion circuits
• Register files in microprocessor-based systems
• Buffering and latching operations in communication interfaces
• General-purpose storage elements in industrial control systems

Flip Flops Procurement Notes

Verify the specific suffix (e.g., PWR vs PWRE4) against the manufacturer's official datasheet to ensure compliance with RoHS directives and material declarations. Confirm that the ordering part number matches the required package variant and temperature grade. Cross-reference the component marking with the latest production change notices to validate authenticity and manufacturing origin before procurement.

Flip Flops Selection Notes

Select this component when TTL-compatible inputs are required alongside high-speed operation in a 5 V system. The AHCT series bridges CMOS speed with TTL input thresholds. Ensure the design accommodates the 20-TSSOP thermal characteristics and pinout. Compare against HC or HCT variants if lower speed or different voltage ranges are acceptable for the application requirements.

Flip Flops Part Context

This device belongs to the Texas Instruments 74AHCT logic family, which combines the high-speed performance of Advanced High-CMOS technology with CMOS compatibility and TTL input compatibility. It is part of the broader 74-series logic ecosystem, designed for general-purpose digital logic applications requiring reliable state storage and high switching speeds in standard 5 V environments.

Flip Flops Replacement Considerations

SN74AHCT574PWRE4 is a verified equivalent variant from the same manufacturer offering identical electrical specifications and functionality.