MC74HCT573AFEL

Latches Overview

The MC74HCT573AFEL is an octal D-type transparent latch manufactured by onsemi, belonging to the 74HCT logic series. It features eight non-inverting data paths with three-state outputs, housed in a 20-SOEIAJ surface-mount package. The device operates within a supply voltage range of 4.5V to 5.5V and supports a wide operating temperature range from -55°C to 125°C. Key electrical specifications include a propagation delay of 30ns and output drive currents of 6mA for both high and low states. This component is designed for high-speed digital applications requiring reliable data latching capabilities.

Latches Feature Summary

• Provides eight independent transparent latch channels for parallel data storage
• Features three-state outputs allowing direct connection to system buses
• Compatible with LSTTL input levels while utilizing CMOS technology
• Designed for high-performance digital signal processing applications

Latches Applications

• Parallel data buffering in computer systems
• Bus-oriented memory interface circuits
• Digital signal routing and switching networks
• High-speed communication interface modules

Latches Procurement Notes

Verify component authenticity through authorized distributors as this part is obsolete. Confirm RoHS compliance status due to manufacturing changes. Check replacement availability from onsemi or alternative manufacturers like Nexperia and Texas Instruments. Ensure packaging integrity matches original SOEIAJ-20 specifications during substitution.

Latches Selection Notes

Select this component when eight-channel latching with bus-compatible outputs is required. Consider the HCT logic family for TTL compatibility. Evaluate thermal performance for industrial temperature ranges. Verify package dimensions against PCB layout constraints before integration into final designs.

Latches Part Context

This octal latch belongs to the widely adopted 74HCT logic family, bridging CMOS and TTL technologies. The MC74HCT573 variant serves as a standard solution for parallel data handling in embedded systems. Its design emphasizes noise immunity and speed, making it suitable for legacy and modern digital interfaces requiring robust data retention.

Latches Replacement Considerations

MM74HCT573WMX (onsemi) offers similar functionality in a different package. 74HCT573D,653 (Nexperia) provides equivalent electrical characteristics. SN74HCT573DWR (Texas Instruments) serves as a compatible alternative. Verify pinout compatibility and package dimensions before substitution.