CD74HC563E

Latches Overview

The CD74HC563E is an octal D-type transparent latch manufactured by Texas Instruments. It features eight independent D-type latches with inverting outputs and three-state capability. The device operates within a supply voltage range of 2V to 6V. It utilizes a 20-pin PDIP package for through-hole mounting. Key electrical parameters include a propagation delay of 23ns and output drive currents of 7.8mA for both high and low states. The component supports an operating temperature range from -40°C to 85°C.

Latches Feature Summary

• Octal configuration providing eight independent transparent latching channels
• Inverting outputs combined with three-state control for bus interfacing
• Wide supply voltage compatibility supporting 2V to 6V operation

Latches Applications

• Parallel data storage in digital systems
• Bus interface circuits requiring tri-state isolation
• Register applications for temporary data holding

Latches Procurement Notes

Verify the specific suffix 'E' corresponds to the 20-PDIP package variant when sourcing. Confirm RoHS compliance status as per current manufacturer documentation. Ensure the supplier provides official datasheets matching the SNx4HC563 series specifications. Cross-reference ordering part numbers such as SN74HC563NE4-ND for accurate procurement identification.

Latches Selection Notes

Select this component for designs requiring parallel data retention with inverted logic levels. The wide voltage range allows flexibility in low-power or standard logic environments. Consider the through-hole packaging for prototyping or specific mechanical constraints. Verify that the three-state output requirements align with the system bus architecture.

Latches Part Context

This part belongs to the 74HC family of high-speed CMOS logic devices. It serves as a fundamental building block for sequential logic circuits. The octal latch structure simplifies the management of multiple data lines simultaneously. It complements other 74HC series components like shift registers and multiplexers in complex digital designs.

Latches FAQ

What is the output polarity of the CD74HC563E?

The outputs are inverting, meaning the latch state is the logical complement of the input data.

Does the device support bidirectional data transfer?

No, it functions as a unidirectional latch. Data flows from inputs to outputs, controlled by the latch enable signal.