CD74HC373E

Latches Overview

The CD74HC373E is an octal transparent D-type latch manufactured by Harris Corporation using silicon gate CMOS technology. It features eight D-type latches with three-state outputs, allowing direct interfacing with bus lines in organized systems. The device operates within a supply voltage range of 2V to 6V and provides high noise immunity. Inputs are buffered, and the logic family is compatible with standard 74LS logic in terms of speed, function, and pin-out.

Latches Feature Summary

• Octal transparent latch configuration with common latch enable control
• Three-state outputs with bus line driving capacity
• High noise immunity and low power consumption typical of standard CMOS
• Buffered inputs protected against static discharge

Latches Applications

• Bus-organized system data storage
• Interfacing with bus lines
• Driving LSTTL loads

Latches Procurement Notes

Verify manufacturer origin as Harris Corporation, noting that Texas Instruments also produces equivalent parts under similar numbering. Confirm RoHS compliance status and package type (PDIP-20) against current datasheets. Check for obsolescence or lifecycle changes specific to Harris-era production runs versus modern TI equivalents.

Latches Selection Notes

Select this component when an octal latch with three-state outputs is required for bus interfacing. Ensure the system voltage falls within the 2V to 6V range. Consider HCT variants if direct LSTTL input compatibility at 5V is strictly necessary without level shifting.

Latches Part Context

This part belongs to the 74HC series of high-speed CMOS logic devices. It is functionally similar to other octal latches like the 74HC374 but differs in transparency and clocking mechanism. The device is designed for applications requiring parallel data retention and controlled output impedance.

Latches Replacement Considerations

CD74HCT373E: Functionally compatible variant with HCT input levels.