DM74AS373WM

Latches Overview

The DM74AS373WM is an octal transparent latch manufactured by Fairchild Semiconductor, belonging to the Advanced Schottky (AS) logic family. It features eight D-type latches with three-state outputs designed for high-speed data storage and bus interfacing. The device operates within a supply voltage range of 4.5V to 5.5V and utilizes a 20-pin Small Outline (SOIC) package. Key electrical characteristics include a propagation delay of 16ns at 5V and a power dissipation of 80mW per gate. It supports through-hole or surface-mount installation depending on the specific suffix variant.

Latches Feature Summary

• Advanced Schottky process provides high switching speed with reduced power consumption compared to standard Schottky counterparts.
• Three-state outputs allow direct connection to system buses without additional interface components.
• Transparent latch architecture enables data transmission when the latch enable is active.

Latches Applications

• High-speed buffer registers in microprocessor systems
• Bidirectional bus drivers for communication interfaces
• Working registers in memory architectures

Latches Procurement Notes

Verify the exact suffix against the manufacturer's current datasheet to confirm package type and temperature grade. Confirm RoHS compliance status as legacy AS series parts may have varying environmental declarations. Check for obsolescence notices from Fairchild or acquired entities like ON Semiconductor. Ensure pinout compatibility with existing PCB footprints before procurement.

Latches Selection Notes

Select this component when advanced Schottky speed is required alongside low power dissipation. Compare propagation delays and output drive capabilities against LS or ALS alternatives if cost is a primary constraint. Verify that the three-state control logic matches the system design requirements for bus arbitration.

Latches Part Context

This part belongs to the 74AS series of logic integrated circuits, known for balancing speed and power efficiency. It is functionally similar to other octal latches but distinguished by its specific switching characteristics and package options available from Fairchild Semiconductor.

Latches Replacement Considerations

Check for equivalents such as SN74AS373 from Texas Instruments or DM74ALS373 from ON Semiconductor. Verify pin compatibility and electrical parameter alignment before substitution.