SN74ACT373MDWREP

Overview

The SN74ACT373MDWREP is an octal D-type transparent latch with three-state outputs manufactured by Texas Instruments. It belongs to the SN74ACT logic series, utilizing CMOS technology for low power consumption and high noise immunity. The device features eight D-type latches with independent data inputs and common clock and output enable controls. It operates within a supply voltage range of 4.5 V to 5.5 V and supports TTL-compatible input levels. The component is housed in a DW (SSOP) package and is qualified for military enhancement standards.

Feature Summary

• Octal D-type transparent latch architecture providing eight independent storage elements
• Three-state outputs allowing direct bus connection without external drivers
• TTL-compatible input logic levels ensuring compatibility with standard digital systems
• Military enhancement qualification for extended reliability and temperature performance

Applications

• High-reliability military communication systems requiring robust data storage
• Aerospace instrumentation interfaces needing wide operating temperature ranges
• Industrial control systems utilizing bus-oriented architectures
• Automotive electronics applications demanding enhanced environmental stability

Procurement Notes

Verify the specific suffix 'MDWREP' against the official Texas Instruments datasheet to confirm military enhancement status and SSOP packaging. Ensure that the procurement source provides valid traceability documentation required for defense or aerospace contracts. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Confirm RoHS compliance details as specified in the latest product information file.

Selection Notes

Select this component when an octal latch with three-state outputs is required for high-reliability environments. The ACT series offers faster switching speeds compared to standard LS logic while maintaining CMOS power efficiency. Consider the SSOP package dimensions for PCB layout constraints. Verify that the system voltage remains within the 4.5 V to 5.5 V range to ensure proper operation and signal integrity across the full industrial or military temperature spectrum.

Part Context

This part is part of the SN74ACT family, which bridges the performance gap between AC and HC logic families. The 'EP' suffix indicates engineering production or military enhancement, distinguishing it from commercial grade parts. The 'MDW' designation specifies the military-grade material and processing combined with the SSOP package type. This series is commonly used in critical digital logic applications where failure is not an option.

Replacement Considerations

• SN74ACT373MDEP
• SN74ACT373DWREP

FAQ

What is the function of the output enable pin?

The output enable pin controls the three-state nature of the outputs, allowing them to be placed in a high-impedance state to prevent bus contention.

How does the transparent latch mode operate?

In transparent mode, the outputs follow the data inputs immediately when the latch enable is active, storing the data only when the enable signal transitions.