MC74VHCT573ADTR2

Latches Overview

The MC74VHCT573ADTR2 is an octal transparent latch manufactured by onsemi, belonging to the VHCT logic series. It features eight non-inverting D-type latches with three-state outputs in a TSSOP-20 package. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports propagation delays of approximately 8.5 ns. It maintains low static current consumption of 4 uA and provides output drive currents of 8 mA for both high and low states. The component functions reliably across operating temperatures from -40°C to +85°C.

Latches Feature Summary

• Octal transparent latch architecture with three-state outputs
• VHCT technology enabling CMOS compatibility with TTL input levels
• Low quiescent current consumption for power efficiency
• High noise immunity and robust output drive capability

Latches Applications

• Parallel-to-serial data conversion circuits
• Register banks for microprocessor interfaces
• I/O buffering in digital communication systems
• Memory address latching applications

Latches Procurement Notes

Verify the exact suffix against official documentation, as standard listings often use ADTR2G. Confirm RoHS compliance status and lead times directly with authorized distributors. Ensure the ordering code matches the specific tape and reel requirements for your assembly line. Cross-reference the datasheet revision date to guarantee parameter accuracy.

Latches Selection Notes

Select this component when interfacing CMOS devices with TTL-level signals requiring high speed. The VHCT series offers faster switching than standard HC logic while maintaining low power dissipation. Consider the TSSOP-20 package for space-constrained designs. Verify that the 5V supply rail aligns with system requirements before implementation.

Latches Part Context

This part belongs to the MC74VHCT573A family of octal latches. It serves as a high-speed alternative to older HCT variants, providing improved performance metrics. The device is designed for general-purpose digital logic applications where reliable data storage and bus isolation are critical. It complements other VHCT components like buffers and flip-flops in complex digital systems.

Latches Replacement Considerations

MC74VHCT573ADTR2G is the confirmed RoHS-compliant substitute. Check pinout compatibility if replacing with HC or HCT series equivalents. Verify voltage tolerance differences between 5V-only VHCT and wider-range HC families.