74HCT377DB,118

Overview

The NXP 74HCT377DB,118 is an octal D-type flip-flop with data enable and positive-edge trigger. It features a 20-pin SSOP package (SOT339-1) with dimensions of 7.2 mm length. The device operates within a supply voltage range of 4.5 V to 5.5 V. It supports a maximum frequency of 18 MHz at nominal supply. Output currents are specified as 4 mA for both high and low states. The component functions across a temperature range of -40 °C to +125 °C and includes hold mode capabilities.

Feature Summary

• Octal D-type flip-flop architecture with eight independent data storage elements
• Positive-edge triggering mechanism synchronized with clock signals
• Data enable functionality allowing controlled input access
• Hold mode operation for maintaining stored state

Applications

• Parallel-to-serial data conversion circuits
• Shift register implementations in digital systems
• Memory buffer stages requiring data latching
• Timing control logic for sequential operations

Procurement Notes

Verify the specific ordering code suffix matches the required package variant, as different suffixes indicate distinct physical form factors such as TSSOP or SSOP. Confirm that the HCT logic family compatibility aligns with the system's TTL-level input requirements. Ensure the manufacturing source is NXP Semiconductor to guarantee adherence to the documented electrical specifications and environmental compliance standards.

Selection Notes

Select this component when an octal storage element with enable control is required for 5V logic interfaces. The HCT series ensures compatibility with standard TTL inputs while providing CMOS output drive characteristics. Consider the wide operating temperature range and robust noise immunity suitable for industrial environments. Verify pinout compatibility if replacing existing designs utilizing similar octal flip-flop configurations.

Part Context

This part belongs to the 74HCT377 series of octal D-type flip-flops manufactured by NXP Semiconductor. It is part of the broader 74HC(T) logic family designed for high-speed CMOS applications with TTL-compatible inputs. The device provides reliable data storage and transfer capabilities for complex digital logic designs requiring multiple parallel data lines.

Replacement Considerations

The 74HCT377PW,118 serves as a functional substitute offering identical logical operations but utilizes a TSSOP-20 package instead of the SSOP-20 form factor.