74HCT564P-E

Overview

The 74HCT564P-E is an octal D-type flip-flop manufactured by Renesas Electronics Corporation, belonging to the 74HCT logic family. It features eight independent D-type flip-flops with positive-edge triggering and three-state outputs. The device operates within a supply voltage range of 4.5 V to 5.5 V. It utilizes a 20-pin DIP package for through-hole mounting. The component supports standard TTL input levels, ensuring compatibility with CMOS systems. It includes clock (CLK) and output enable (OE) inputs to control data latching and bus tri-stating functionality.

Feature Summary

• Octal configuration providing eight independent D-type flip-flops in a single package
• Three-state outputs allowing direct connection to system buses without external drivers
• Positive-edge triggered data latching synchronized with the clock signal
• TTL-compatible input thresholds for seamless integration with 5V logic families

Applications

• Parallel-to-serial data conversion circuits
• Bus interface buffering and isolation
• Register file storage elements in microprocessor systems
• Digital signal processing data path alignment

Procurement Notes

Verify the specific suffix 'P-E' against the manufacturer's current datasheet to confirm pinout and package dimensions. Ensure the procurement channel provides original manufacturer documentation to validate authenticity. Check for RoHS compliance status as indicated in official product specifications. Confirm that the supplier offers traceability for quality assurance purposes.

Selection Notes

Select this component when an octal register with high-drive three-state outputs is required. The HCT series ensures compatibility with 5V TTL logic inputs, making it suitable for mixed-voltage environments. Consider the 20-pin DIP package for prototyping or through-hole applications where surface-mount options are not feasible. Evaluate propagation delay requirements against system timing constraints.

Part Context

This part belongs to the 74HCT series of high-speed CMOS logic devices produced by Renesas Electronics. The series is designed to bridge the gap between older TTL standards and modern CMOS technology. The 74HCT564 variant specifically addresses the need for parallel data storage with controlled output impedance. It is part of a broader ecosystem of logic components used in digital circuit design.

Replacement Considerations

Compatible substitutes include the HD74HC564P from Hitachi/Renesas and the SN74HCT564N from Texas Instruments. Verify that replacement parts maintain the same 20-pin DIP package and electrical characteristics. Ensure that the alternative source confirms identical pin assignments and output drive capabilities.