SN74HC373ANSR

Overview

The SN74HC373ANSR is an octal transparent D-type latch with three-state outputs manufactured by Texas Instruments. It belongs to the HC (High-speed CMOS) logic family, designed for low power consumption and high noise immunity. The device features eight D-type latches, each with a separate data input (D) and output enable (OE) control. When the output enable is active, the latch is transparent, allowing data to pass from input to output. Upon deactivation of the enable signal or transition of the latch enable, data is stored at the output pins. This component is suitable for various digital logic applications requiring temporary data storage and bus driving capabilities.

Feature Summary

• Octal configuration providing eight independent D-type latches within a single package
• Three-state outputs controlled by an output enable pin for efficient bus interfacing
• Transparent latch operation allowing direct data passage when enabled
• CMOS technology ensuring low power dissipation and high noise immunity

Applications

• Parallel-to-serial data conversion circuits
• Bus-oriented memory systems
• Clocked register arrays in digital processors
• Temporary data storage in communication interfaces

Procurement Notes

Verify the manufacturer marking on the component body matches Texas Instruments specifications. Confirm the suffix 'ANSR' indicates the tape-and-reel packaging format and RoHS compliance status as per the latest datasheet revision. Ensure the operating voltage range aligns with your system requirements before integration.

Selection Notes

Select this component when an octal latch with three-state outputs is required for HC logic level compatibility. Consider the package type and reel quantity if using automated assembly processes. Verify that the propagation delay and drive current meet the specific timing and load requirements of the target application circuit.

Part Context

This part is part of the SN74HC series of high-speed CMOS logic devices. It serves as a fundamental building block for sequential logic circuits. Similar parts in the family may offer different latch counts or output configurations. The 'A' suffix typically denotes improved specifications or revisions compared to earlier versions.

Replacement Considerations

Direct replacements include other SN74HC373 variants from Texas Instruments or equivalent octal latches from manufacturers like NXP or ON Semiconductor, provided pinouts and electrical characteristics are compatible. Verify logic family voltage compatibility.