74ACT573SJ

Latches Overview

The Fairchild Semiconductor 74ACT573SJ is an octal transparent latch featuring three-state outputs, designed for bus-oriented system applications. It operates within a supply voltage range of 4.5 V to 5.5 V and supports a propagation delay of 10.5 ns at 5 V. The device provides high drive capability with output currents of 24 mA and maintains low static current consumption of 4 uA. It functions reliably across an industrial temperature range from -40°C to +85°C and utilizes a 20-pin SOP package.

Latches Feature Summary

• Features buffered common Latch Enable and Output Enable inputs for efficient bus interfacing
• Provides eight latches in a single package with reduced power consumption characteristics
• Includes TTL-compatible inputs suitable for direct interface with microprocessor systems

Latches Applications

• Bus-oriented system data storage
• Microprocessor input/output port interfacing
• High-speed digital logic buffering

Latches Procurement Notes

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm RoHS compliance status as indicated in specific datasheets. Ensure the SOP-20 package matches design requirements. Check for obsolescence notices given the product's age. Validate electrical parameters against current application needs before procurement.

Latches Selection Notes

Select this component when designing systems requiring octal latching with three-state bus compatibility. Consider the 74ACT series for its speed and CMOS power efficiency. Verify that the 20-pin SOP footprint fits the PCB layout. Ensure the operating voltage aligns with the 4.5 V to 5.5 V specification. Evaluate thermal management for the -40°C to +85°C range.

Latches Part Context

This part belongs to the 74ACT logic family, known for high-speed performance compatible with TTL levels while maintaining CMOS power advantages. It is functionally similar to other octal latches like the 74AC573 but offers specific input/output configurations. The 74ACT573SJ represents a standard solution for parallel data latching in embedded and industrial control environments.

Latches Replacement Considerations

Consider the SN74ACT573NSR from Texas Instruments as a functional equivalent. Both devices offer octal latching with three-state outputs in comparable packages. Verify pinout compatibility and electrical specifications before substitution.