CD74HC173NSRE4

Overview

The CD74HC173NSRE4 is a Texas Instruments logic component belonging to the HC series, classified as a D-Type Flip-Flop. It integrates four independent circuits within a single package. The device features three-state outputs and accepts single-ended inputs with non-inverting polarity. Electrical specifications include a propagation delay of 200 ns, with high-level output current at -7.8 mA and low-level output current at 7.8 mA. It operates on a power supply voltage ranging from 2 V to 6 V. The unit is housed in a TSSOP-16 surface-mount package and supports installation via SMD/SMT mounting styles.

Feature Summary

• Integrates four independent D-type flip-flops within a single integrated circuit package for compact design.
• Provides three-state outputs to facilitate direct connection to bus systems without external buffers.
• Utilizes standard single-ended input configuration with non-inverting signal polarity.

Applications

• Synchronous data storage and register applications
• Bus interface circuits requiring tri-state isolation
• Digital logic control systems

Procurement Notes

Verify that the specific ordering suffix matches the required tape-and-reel packaging format. Confirm the manufacturer designation aligns with Texas Instruments specifications. Ensure the component meets RoHS compliance requirements for the intended manufacturing process. Cross-reference the datasheet parameters against system voltage and speed constraints before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring multiple synchronized storage elements with bus-compatible outputs. The HC series offers compatibility with standard CMOS logic families. Consider the TSSOP-16 package dimensions for PCB layout constraints. Evaluate the 200 ns propagation delay against the maximum clock frequency requirements of the target application circuit.

Part Context

This part belongs to the CD74HC173 family of quad D-type flip-flops manufactured by Texas Instruments. It represents a standard solution for synchronous digital logic designs. The HC series provides performance characteristics suitable for general-purpose computing and industrial control applications. The component serves as a fundamental building block for sequential logic circuits.

Replacement Considerations

Consult official cross-reference documentation for compatible alternatives. Verify pinout compatibility and electrical parameter equivalence before substitution. Ensure the replacement device supports the same TSSOP-16 package and operating temperature range.