CD74HC377PWR

Overview

The CD74HC377PWR is a high-speed CMOS octal D-type flip-flop manufactured by Texas Instruments. It features eight positive-edge-triggered D-type flip-flops with clock enable functionality, housed in a 20-TSSOP package. The device operates within a supply voltage range of 2 V to 6 V and supports data rates up to 50 MHz. Key electrical parameters include a propagation delay of 16 ns at 5 V and output drive capabilities of ±5.2 mA. It functions reliably across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates eight independent positive-edge-triggered D-type flip-flops for parallel data storage.
• Includes a dedicated clock enable input to control data latching without affecting the clock signal.
• Utilizes high-speed CMOS technology to ensure low power consumption and fast switching speeds.
• Provides non-inverting outputs compatible with standard logic families.

Applications

• Parallel-to-serial data conversion circuits
• Shift register implementations
• Memory buffer stages in digital systems
• Data acquisition system interfaces

Procurement Notes

Verify the specific ordering suffix 'PWR' corresponds to the TSSOP-20 package and tape-and-reel quantity as specified in the manufacturer's official documentation. Confirm that the component meets RoHS compliance requirements for your target assembly process. Ensure compatibility with your PCB footprint dimensions and soldering thermal profiles before finalizing procurement orders.

Selection Notes

Select this component when an octal storage element with individual clock enable control is required. It is suitable for applications needing moderate speed and low power consumption. Consider alternative packages if surface area constraints differ from the TSSOP-20 form factor. Verify input voltage levels match your system logic standards, as this is a HC series device.

Part Context

This part belongs to the SN74HC/CD74HC377 family of octal D-type flip-flops. It shares functional similarities with other members like the SN74HC377N but differs in packaging and reel specifications. The CD prefix typically indicates commercial grade availability, while the HC series denotes high-speed CMOS performance relative to older LS or ALS technologies.

Replacement Considerations

Direct pin-compatible substitutes include the SN74HC377DW (SOIC-20) and SN74HC377N (PDIP-20). Cross-reference datasheets to confirm identical pinouts and electrical characteristics before substitution. Note that package variations may require PCB layout adjustments.