SN74LVC373ADWR

Latches Overview

The SN74LVC373ADWR 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 capability with output currents up to 24 mA and low power consumption with static current of 10 µA.

Latches Feature Summary

• Operates within a wide voltage range of 1.65 V to 3.6 V
• Inputs accept voltages up to 5.5 V for mixed-mode compatibility
• Includes Ioff feature to prevent back-drive current during partial-power-down
• Provides 3-state outputs with high drive capability

Latches Applications

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

Latches Procurement Notes

Verify the package type matches the required PCB footprint, as the SN74LVC373A series is available in multiple configurations including SOIC, SSOP, TSSOP, and VQFN. Confirm that the specific ordering suffix corresponds to the desired reel quantity and lead finish. Ensure the component meets RoHS compliance requirements for the target assembly process.

Latches Selection Notes

Select this component when an octal latch with 3-state outputs is required for bus interface applications. It is suitable for designs needing voltage translation between 3.3-V and 5-V systems due to its 5.5-V tolerant inputs. Consider the operating temperature range and thermal characteristics if the application involves high ambient temperatures or significant power dissipation.

Latches Part Context

This part belongs to the SNx4LVC373A family of octal transparent D-type latches with 3-state outputs. The 'A' designation indicates updated specifications compared to earlier versions. The 'DWR' suffix specifies the SOIC-20 package body size and tape-and-reel packaging format, distinguishing it from tube-packaged variants like the DW.

Latches Replacement Considerations

SN74LVC373ADW (Tube version)

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 applications.

What is the maximum input voltage tolerance?

The inputs can accept voltages up to 5.5 V, allowing the device to be used as a translator in mixed 3.3-V/5-V system environments.