CD74HCT563M

Latches Overview

The CD74HCT563M is an octal transparent D-type latch manufactured by Harris Corporation, housed in a 20-pin SOIC package. It operates within a supply voltage range of 4.5V to 5.5V and features common latch-enable and three-state output enable controls. Key electrical parameters include a propagation delay of 30 ns at 4.5V, a static current of 8 µA, a low-level output current of 32 mA, and a high-level output current of -6 mA. The device supports a minimum operating temperature of -55°C.

Latches Feature Summary

• Octal transparent D-type latch architecture with buffered inputs
• Common latch-enable control for synchronized data storage
• Common three-state output enable control for bus driving

Latches Applications

• Data storage in digital logic systems
• Bus interface circuits requiring tri-state outputs
• Parallel-to-serial conversion modules

Latches Procurement Notes

Verify the manufacturer origin, as Harris Corporation assets were acquired by Texas Instruments. Confirm RoHS compliance status, as some sources indicate non-compliance while others suggest lead-free availability. Ensure the SOIC-20 package matches design requirements and check for specific lot traceability if required by quality standards.

Latches Selection Notes

Select this component for applications requiring octal latching with tri-state outputs in HCT logic environments. It is suitable for designs needing 4.5V to 5.5V operation and compatibility with standard TTL and CMOS systems. Consider the 30 ns propagation delay and 32 mA drive capability when designing timing-critical or load-heavy interfaces.

Latches Part Context

This part belongs to the 74HCT logic family, designed for high-speed CMOS operation with TTL-compatible input levels. The CD74HCT563M specifically provides eight independent transparent latches with common control signals, facilitating efficient data management in complex digital architectures.

Latches Replacement Considerations

Texas Instruments offers the CD74HCT563M as a direct successor following the acquisition of Harris Semiconductor assets. Verify pinout and electrical specifications against the original Harris datasheet to ensure functional equivalence in existing designs.