SN74LVC373ADW

Latches Overview

The SN74LVC373ADW is an octal transparent D-type latch with 3-state outputs manufactured by Texas Instruments. It operates from a supply voltage of 1.65 V to 3.6 V and accepts input voltages up to 5.5 V, supporting mixed-mode signal operation. The device features a maximum propagation delay of 6.8 ns at 3.3 V and includes Ioff circuitry for partial-power-down mode. It provides high drive current capability and ESD protection exceeding 2000 V via the human-body model.

Latches Feature Summary

• Octal transparent D-type latches with 3-state outputs
• Supports mixed-mode signal operation with 5-V tolerant inputs
• Ioff circuitry prevents back-drive during partial-power-down
• High ESD protection performance across multiple standards

Latches Applications

• Network switches
• TV set-top boxes
• Motor drives
• PCs and notebooks

Latches Procurement Notes

Verify the package type matches the DW (SOIC) designation in the part number. Confirm the operating temperature range meets system requirements, as this specific suffix indicates industrial grade (-40°C to 125°C). Ensure pinout compatibility with existing PCB footprints before integration.

Latches Selection Notes

Select this component when designing systems requiring data retention with bus isolation. The 5.5 V input tolerance allows direct interfacing with legacy 5-V logic without level shifters. Verify that the load capacitance and drive current requirements fall within the specified electrical characteristics for reliable switching performance.

Latches Part Context

This device belongs to the LVC (Low Voltage CMOS) family, designed for low-power applications in portable electronics. It serves as a memory element in digital circuits, capturing data on the falling edge of the latch enable signal. The SOIC-20 package offers a balance of thermal performance and board space efficiency for surface-mount assembly.

Latches Replacement Considerations

SN74LVC373ADBR

Latches FAQ

How does the Ioff feature function?

The Ioff circuitry disables the outputs when VCC is 0 V, preventing damaging current backflow through the device during partial-power-down states.

Can this latch interface with 5-V logic?

Yes, the inputs accept voltages up to 5.5 V, allowing it to translate signals down from 5-V devices while operating at lower VCC levels.