SN74AHCT574PWR

Flip Flops Overview

The SN74AHCT574PWR is an octal edge-triggered D-type flip-flop featuring three-state outputs, manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and utilizes a 20-TSSOP surface-mount package. The device exhibits a maximum propagation delay of 10.6 ns at 5 V with 50 pF load, supporting clock frequencies up to 115 MHz. Output drive capability provides ±8 mA for both high and low states, while static current consumption remains low at 4 µA. Input characteristics are compatible with TTL voltage levels.

Flip Flops Feature Summary

• Octal configuration providing eight independent D-type flip-flops in a single integrated circuit
• Three-state outputs designed for direct bus driving applications without external buffers
• TTL-compatible input thresholds ensuring interoperability with standard logic families
• High-speed performance suitable for demanding digital data processing tasks

Flip Flops Applications

• Buffer registers for temporary data storage in digital systems
• I/O port expansion for microcontroller interfaces
• Bidirectional bus driver implementations
• Working registers within complex logic circuits

Flip Flops Procurement Notes

Verify the complete part number including the G4 suffix for RoHS compliance status when ordering. Confirm the TSSOP-20 package dimensions match your PCB footprint requirements. Ensure the 4.5 V to 5.5 V operating voltage aligns with your system power rails. Check for moisture sensitivity level constraints during assembly. Validate that the 115 MHz maximum clock frequency meets your timing specifications.

Flip Flops Selection Notes

Select this component when TTL-compatible inputs are required alongside high-speed operation. The AHCT series offers faster switching than standard HCT variants while maintaining pin compatibility. Consider the 20-TSSOP package for space-constrained surface-mount designs. Evaluate the ±8 mA output drive against load requirements before finalizing the design choice.

Flip Flops Part Context

This device belongs to the Texas Instruments 74AHCT logic family, which combines advanced CMOS technology with TTL-compatible inputs. The SN74AHCT574 serves as an octal version of the single-bit 74AHCT74 flip-flop. It is part of a broader portfolio of high-speed logic components designed for modern digital electronics requiring reliable data latching and bus management capabilities.

Flip Flops Replacement Considerations

SN74AHCT574PWRE4 is a verified equivalent variant from the same manufacturer.