SN74HC373ADBR

Overview

The SN74HC373ADBR is an octal transparent D-type latch with three-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 6 V and supports an operating temperature from -40°C to 85°C. The device features high-current outputs capable of driving up to 15 LSTTL loads. Propagation delay (D to Q) ranges from 12 ns to 31 ns depending on voltage, while output enable/disable times are between 13 ns and 31 ns. Input transition times are specified up to 500 ns at 4.5 V.

Feature Summary

• Features eight high-current true outputs designed for driving highly capacitive or low-impedance loads.
• Provides full parallel access for loading data into the latches when the latch-enable input is high.
• Includes an output-enable input that places outputs in a normal logic state or a high-impedance state without affecting internal latch operations.

Applications

• Implementing buffer registers
• Designing I/O ports
• Creating bidirectional bus drivers
• Utilizing as working registers

Procurement Notes

Verify the specific ordering suffix 'DB' corresponds to the SSOP package and tape-and-reel carrier format. Confirm RoHS compliance status and lead finish details against the latest Package Option Addendum. Ensure the procurement request matches the active production status and standard packing quantities defined by Texas Instruments for this specific part number variant.

Selection Notes

Select this component when an octal latch with three-state outputs is required for bus-oriented systems. The HC series offers CMOS compatibility suitable for general-purpose digital applications. Consider the propagation delay specifications relative to system clock speeds. Verify that the 2 V to 6 V supply voltage range aligns with the target circuit design requirements.

Part Context

This device belongs to the SN74HC373A family of octal transparent D-type latches. It shares functional similarities with other variants like the SN74HC373AN and SN74HC373APWR, differing primarily in packaging and shipping configuration. The family is designed for high-speed digital logic applications requiring parallel data storage and controlled output states.

Replacement Considerations

Compatible substitutes include SN74HC373ANSR and SN74HC373APWR.A. Verify pinout compatibility and electrical characteristics before substitution. Ensure the alternative part meets the same voltage and temperature specifications.