CD54HC573F

Latches Overview

The CD54HC573F is an octal transparent D-type latch with 3-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 6 V and supports a wide operating temperature range from -55°C to 125°C. The device features balanced propagation delays and transition times, allowing it to directly drive bus lines and support up to 15 LS-TTL loads while significantly reducing power consumption compared to LS-TTL equivalents.

Latches Feature Summary

• Octal transparent D-type latches designed for 2-V to 6-V operation
• 3-state outputs capable of directly driving bus lines without interface components
• Wide operating temperature range spanning -55°C to 125°C
• Significant power reduction compared to LS-TTL technology

Latches Applications

• Bus driver applications requiring direct bus line driving capability
• High-speed CMOS logic systems utilizing 3-state output control
• Military and defense applications requiring QML certification

Latches Procurement Notes

Verify the specific ordering suffix (e.g., F, F3A) against the Package Option Addendum to confirm the exact package type and material specifications. Ensure compatibility with military-grade requirements if the application demands QML certification. Confirm RoHS status and lead finish details match the design constraints before finalizing procurement orders.

Latches Selection Notes

Select this component when designing high-speed CMOS logic circuits that require octal data storage with tri-state output control. It is suitable for applications needing direct bus interfacing and robust performance across extreme temperature environments. Consider the 2-V to 6-V supply range and the specific thermal resistance characteristics of the CDIP package for proper heat management in the system design.

Latches Part Context

The CD54HC573F belongs to the SN54/CD54HC573 family of octal transparent D-type latches. This series is specifically qualified for Military and Defense Applications under QML standards. It serves as a high-speed CMOS alternative to legacy LS-TTL devices, offering comparable functionality with reduced power consumption and extended operational temperature capabilities.

Latches Replacement Considerations

The catalog version CD74HC573 provides equivalent electrical functionality but lacks military qualification. Other variants include CD54HC573F3A and CD54HC573F.A, which share the same core logic but may differ in marking or specific manufacturing lot attributes.