MM74HCT373WM

Latches Overview

The MM74HCT373WM is an octal transparent latch manufactured by Fairchild Semiconductor, belonging to the 74HCT logic series. It features a single circuit configuration with eight D-type inputs and corresponding outputs. The device utilizes a 20-SOIC surface-mount package with a width of 7.50mm. Electrical specifications include a propagation delay of 17ns and output drive currents of 7.2mA for both high and low states. It operates within a supply voltage range of 4.5V to 5.5V and supports a working temperature range from -40°C to 85°C.

Latches Feature Summary

• Provides tri-state output capability for bus-oriented memory and driving applications
• Features true output functionality synchronized with the latch enable signal
• Compatible with standard TTL logic levels due to HCT CMOS construction

Latches Applications

• Bus-oriented memory storage systems
• Registering and buffering digital data signals
• Driving high-capacitance or low-impedance loads on data buses

Latches Procurement Notes

Verify the manufacturer designation as Fairchild Semiconductor during sourcing, noting that Fairchild has undergone corporate restructuring. Confirm the specific package dimensions match the 20-SOIC standard (0.295 inch width). Ensure the component meets RoHS compliance requirements if applicable to your assembly process. Cross-reference the part number against current distributor catalogs to confirm availability status.

Latches Selection Notes

Select this component when an octal latch with tri-state outputs is required for 5V logic systems. The HCT series ensures compatibility with TTL inputs while offering CMOS noise immunity. Consider the 17ns propagation delay and 7.2mA drive strength for timing and load analysis. Verify that the 20-SOIC package fits the PCB footprint constraints and thermal management requirements of the design.

Latches Part Context

This component is part of the widely used 74HCT family of logic integrated circuits. It serves as a fundamental building block for sequential logic designs requiring data retention and controlled output enabling. The MM74HCT373WM variant specifically denotes the surface-mount SOIC packaging option provided by Fairchild Semiconductor for automated assembly processes.

Latches Replacement Considerations

Equivalent parts include the SN74HCT373 from Texas Instruments and the MM74HCT373 from onsemi. These alternatives share identical logical functions and pinouts but may differ in specific electrical parameters or packaging tolerances. Verify pin compatibility before substitution.