74HCT374D,653

Overview

The Nexperia 74HCT374D,653 is an octal D-type flip-flop with positive edge triggering and 3-state outputs. It operates within a supply voltage range of 4.5 V to 5.5 V. The device features 8 bits, 20 terminals, and a load capacitance of 50 pF. It functions as a bus driver with one functional unit and two ports. The component supports an operating temperature range from -40 °C to +125 °C and utilizes a 20-pin SOP package.

Feature Summary

• Positive edge-triggered octal D-type flip-flop architecture
• Three-state non-inverting outputs for bus-oriented applications
• CMOS low power dissipation with high noise immunity
• Inputs include clamp diodes for interfacing to voltages exceeding VCC

Applications

• Bus-oriented data storage systems
• Parallel-to-serial conversion circuits
• High-speed digital logic interfaces
• Memory buffer stages in computing hardware

Procurement Notes

Verify the specific ordering code suffix against official Nexperia documentation to confirm package type and reel specifications. Ensure compatibility with RoHS and REACH regulatory standards required by your region. Confirm moisture sensitivity level handling procedures during assembly. Cross-reference the manufacturer part number with distributor databases to validate authenticity and current production status before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring octal data latching with tri-state control capabilities. It is suitable for applications needing TTL-compatible input levels driven by CMOS technology. Consider the 20-pin SOP package constraints for PCB layout. Evaluate the -40 °C to +125 °C operating range against environmental conditions. Compare propagation delay characteristics with system timing requirements to ensure signal integrity.

Part Context

This device belongs to the 74HCT series, which bridges CMOS technology with TTL logic levels. It complements other logic family members like the 74HC373 transparent latch. The HCT variant ensures compatibility with standard TTL inputs while maintaining CMOS noise immunity. It serves as a fundamental building block for complex digital sequential logic designs requiring parallel data retention.

Replacement Considerations

The 74HCT373D,653 is a documented substitute offering similar octal functionality but with transparent latch behavior instead of edge-triggering. Verify that the application design accommodates the difference between latch enable and clock trigger mechanisms. Ensure pinout compatibility remains consistent across both components for direct replacement scenarios.