CD74HC377E

Overview

The CD74HC377E is an octal D-type flip-flop manufactured by Texas Instruments, belonging to the 74HC logic series. It features eight independent D-type flip-flops with positive-edge triggering and a clock enable input. The device operates within a supply voltage range of 2 V to 6 V and utilizes a 20-pin PDIP package for through-hole mounting. Key electrical parameters include a maximum propagation delay of 160 ns at 2 V and 50 pF load, with output drive capabilities of -5.2 mA (high) and 5.2 mA (low). It supports a wide operating temperature range from -40°C to +85°C.

Feature Summary

• Contains eight independent positive-edge triggered D-type flip-flops
• Includes a dedicated clock enable input for data control
• Provides non-inverting outputs with standard CMOS characteristics

Applications

• Parallel-to-serial data conversion circuits
• Shift register implementations in digital systems
• General-purpose storage elements in microprocessor interfaces

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure compatibility with required packaging and environmental specifications. Confirm that the PDIP-20 package aligns with PCB footprint requirements. Cross-reference RoHS compliance status with local regulatory standards prior to procurement.

Selection Notes

Select this component when designing circuits requiring multiple synchronized storage elements with clock enable functionality. Ensure the system voltage falls within the 2 V to 6 V range. Consider the 160 ns propagation delay at lower voltages when determining maximum operating speeds for timing-critical applications.

Part Context

This part belongs to the SN74HC/CD74HC377 family of octal D-type flip-flops. It shares functional similarities with other HC-series logic devices but is distinct from latch variants like the 74HC373. The 'E' suffix typically denotes a specific tube packaging configuration for through-hole applications.

Replacement Considerations

• SN74HC377N
• SN74HC377NE4