CD74HCT377ME4

Overview

The CD74HCT377ME4 is an octal D-type flip-flop from the Texas Instruments HCT logic family, housed in a 20-pin SOIC package. It operates on a single supply voltage ranging from 4.5 V to 5.5 V. The device features non-inverting outputs with a maximum propagation delay of 38 ns at 4.5 V and 50 pF load. It supports a clock frequency up to 50 MHz and maintains a low static current of 8 µA. The component functions as a positive-edge-triggered bus interface, providing TTL-compatible inputs and CMOS outputs.

Feature Summary

• Octal D-type flip-flop architecture for parallel data storage
• Positive-edge triggering mechanism for synchronous operation
• TTL-compatible input levels interfacing with CMOS outputs
• High-speed performance suitable for bus interface applications

Applications

• Parallel-to-serial data conversion circuits
• Shift register configurations
• Bus interface buffering systems
• Digital state storage modules

Procurement Notes

Verify component authenticity through authorized channels due to discontinued status. Confirm RoHS compliance and MSL rating prior to integration. Ensure replacement parts match pinout and electrical specifications. Validate operating temperature range compatibility with final assembly requirements. Review manufacturer recommendations for equivalent components.

Selection Notes

Select this component for designs requiring octal data latching with high-speed capabilities. The HCT series ensures compatibility with standard TTL logic families while offering CMOS output drive strength. Consider the 20-SOIC package constraints for PCB layout. Evaluate thermal management needs within the specified -55°C to +125°C operating range.

Part Context

This part belongs to the CD74HCT377 series, representing high-speed CMOS octal D-type flip-flops. It is designed for demanding digital applications requiring reliable data retention and fast switching speeds. The device integrates eight independent D-type flip-flops into a single integrated circuit, facilitating complex sequential logic implementations.

Replacement Considerations

CD74HCT377M is the manufacturer-recommended substitute. Verify functional equivalence and package compatibility before adoption.