74AC373SJ

Overview

The Fairchild Semiconductor 74AC373SJ is an octal D-type transparent latch featuring three-state outputs, housed in a 20-lead Small Outline Package (SOP). It operates within a supply voltage range of 2.0V to 6.0V and supports an operating temperature range from -40°C to 85°C. The device provides eight independent latches with buffered data inputs and common latch enable and output enable controls.

Feature Summary

• Octal configuration providing eight independent transparent latches in a single package
• Three-state outputs designed for efficient bus-oriented system applications
• Buffered positive edge-triggered clock input for reliable data capture

Applications

• Bus-oriented memory systems requiring data storage and retrieval
• Register banks for temporary data holding in digital circuits
• Interface modules connecting microprocessors to peripheral devices

Procurement Notes

Verify the specific suffix 'SJ' against current manufacturer documentation to confirm pinout compatibility and lead-free status. Ensure the component meets RoHS directives if required by your assembly process. Cross-reference the datasheet revision date to validate electrical characteristics against your design specifications.

Selection Notes

Select this component when an octal latch with high-speed CMOS performance is required. The AC series offers superior speed compared to standard LS logic while maintaining low power consumption. Verify that the SOP-20 package dimensions fit your PCB layout constraints before finalizing the design.

Part Context

This part belongs to the 74AC logic family, known for high-speed operation and wide voltage tolerance. It serves as a functional equivalent to other octal latches like the 74HC373 but with faster switching speeds. The device is widely used in general-purpose digital logic applications requiring parallel data storage.