SN74ACT373DBR

Overview

The SN74ACT373DBR is an octal D-type transparent latch manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and features three-state outputs. The device provides eight non-inverting D-type latches with a common latch enable input. It utilizes ACT logic technology for high-speed performance, characterized by a propagation delay of 10 ns. The component supports low static current consumption of 4 uA and offers robust output drive capabilities with a low-level output current of 32 mA and a high-level output current of -24 mA.

Feature Summary

• Octal configuration providing eight independent D-type transparent latches in a single package
• Three-state outputs allowing direct connection to bus systems without additional drivers
• ACT logic technology ensuring high-speed operation with low power dissipation

Applications

• Parallel data storage in digital systems
• Bus-oriented memory mapping applications
• Register files for temporary data holding

Procurement Notes

Verify the specific suffix 'DBR' corresponds to the SOIC-20 surface-mount package and tape-and-reel packaging format. Confirm that the procurement channel sources genuine Texas Instruments components to ensure compliance with the specified electrical parameters and operating temperature ranges. Cross-reference the manufacturer part number against official distribution channels to avoid counterfeit products.

Selection Notes

Select this component when an octal latch with three-state outputs is required for bus interfacing. The ACT series is suitable for designs needing faster switching speeds compared to standard AC or HC families while maintaining CMOS compatibility. Ensure the system voltage aligns with the 4.5 V to 5.5 V operating range and that the SOIC-20 package fits the PCB layout constraints.

Part Context

This device belongs to the Texas Instruments 74ACT family of logic integrated circuits. The 74ACT series combines the speed of bipolar logic with the low power consumption of CMOS technology. The SN74ACT373 specifically functions as an octal D-type latch, distinct from flip-flops like the SN74ACT74 which are edge-triggered rather than level-sensitive transparent latches.

Replacement Considerations

SN74ACT373DR