SN74AHC373DW

Overview

The SN74AHC373DW is an octal transparent D-type latch with three-state outputs manufactured by Texas Instruments. It belongs to the 74AHC logic series and operates within a supply voltage range of 2 V to 5.5 V. The device features low static current consumption of 4 uA and supports output drive currents of 32 mA (low) and -8 mA (high). Propagation delays are specified at 14.9 ns and 9.2 ns. It functions in industrial temperatures from -40°C to +85°C and is housed in a 20-pin SOIC package.

Feature Summary

• Provides eight independent transparent D-type latches with tri-state control for bus-oriented memory mapping and driving.

Applications

• Bus-oriented memory mapping
• Registering and buffering

Procurement Notes

Verify component authenticity through authorized channels, as the SN74AHC373DW may be subject to obsolescence or end-of-life status. Confirm RoHS compliance details and check for alternative packages like DGVR if surface-mount volume requirements differ. Validate datasheet revisions to ensure pinout and electrical characteristics match current design specifications before finalizing procurement.

Selection Notes

Select this component when designing systems requiring high-speed data latching with low power consumption. The AHC series offers performance comparable to ALVC while maintaining CMOS compatibility. Ensure the application voltage stays within the 2V to 5.5V range and verify that the SOIC-20 package fits the PCB layout constraints compared to TVSOP or TSSOP alternatives.

Part Context

This part is a member of the Texas Instruments 74AHC family of advanced high-speed CMOS logic devices. It shares functional similarities with other octal latches in the 74xx series but utilizes AHC technology for improved speed and lower power. The DW suffix specifically denotes the standard 20-pin Small Outline Integrated Circuit (SOIC) package format.

Replacement Considerations

• SN74AHC373DWG4