CD74HCT563E

Latches Overview

The CD74HCT563E is an octal transparent latch manufactured by Harris Corporation, belonging to the HCT logic series. It features a single channel with 8-bit width and tri-state outputs. The device operates on a supply voltage of 4.5V to 5.5V and supports synchronous data transfer. It utilizes buffered inputs and provides common latch-enable and three-state output enable controls. The component is housed in a 20-pin PDIP package and is rated for operation between -55°C and 125°C.

Latches Feature Summary

• Octal transparent latch design with D-type functionality
• Common latch-enable control for synchronized data capture
• Tri-state outputs with bus line driving capacity
• Buffered inputs for signal integrity

Latches Applications

• High-speed digital data storage systems
• Bus interface circuits requiring tri-state isolation
• Parallel data latching in microprocessor-based designs
• Memory address buffering applications

Latches Procurement Notes

Verify manufacturer origin as Harris Corporation or acquired entities like Texas Instruments. Confirm RoHS compliance status as the component may be non-compliant. Check package type (PDIP-20) and pinout compatibility. Ensure operating temperature range meets system requirements. Validate datasheet revision for accurate electrical specifications.

Latches Selection Notes

Select this component for applications requiring octal latching with tri-state capability. Consider the HCT series compatibility with standard TTL logic levels. Evaluate power consumption against system constraints. Verify package availability and lead times due to potential obsolete status. Ensure input buffering meets noise immunity requirements.

Latches Part Context

Part of the 74HCT logic family, designed for high-speed CMOS operation with TTL-compatible inputs. Manufactured by Harris Semiconductor, now part of Texas Instruments. Commonly used in legacy and industrial systems requiring reliable parallel data retention. Related parts include CD74HCT373 and CD74FCT563E.

Latches Replacement Considerations

Check for direct substitutes from Texas Instruments such as SN74HCT563. Verify pin-to-pin compatibility with equivalent logic families. Ensure functional equivalence in latch-enable and tri-state control signals. Confirm package dimensions match existing PCB footprints.