74AHCT573PW,118

Latches Overview

The Nexperia 74AHCT573PW,118 is an octal D-type transparent latch with 3-state outputs housed in a 20-lead TSSOP package. It operates within a supply voltage range of 4.5 V to 5.5 V and supports temperatures from -40 °C to +125 °C. The device features TTL input levels, balanced propagation delays, and Schmitt-trigger action on all inputs. Key electrical characteristics include overvoltage tolerant inputs up to 5.5 V, high noise immunity, and CMOS low power dissipation.

Latches Feature Summary

• Octal D-type transparent latch architecture with common 3-state output enable
• TTL-compatible input levels for direct interfacing with standard logic families
• Schmitt-trigger action on all inputs to ensure clean signal transitions
• Overvoltage tolerant inputs allowing operation in mixed-voltage environments

Latches Applications

• Bus-oriented data storage applications requiring tri-state control
• Microprocessor interface circuits for temporary data holding
• Mixed voltage translation between different logic domains
• High-speed digital systems utilizing TTL-level signaling

Latches Procurement Notes

Verify the specific ordering suffix

Latches Selection Notes

Select this component when TTL input compatibility is required alongside 3-state bus capabilities. The AHCT series bridges HC performance with TTL thresholds. Ensure the design accommodates the specified 4.5 V to 5.5 V supply range and verify that the TSSOP20 thermal dissipation limits are respected under maximum operating conditions.

Latches Part Context

This part belongs to the Nexperia 74AHC/AHCT573 family of octal latches. It is functionally identical to the 74AHC373 and 74AHCT373 variants. The product line offers multiple package options including SO20 and DHVQFN20, providing flexibility for various PCB layout constraints while maintaining consistent logical functionality across the series.

Latches Replacement Considerations

Publicly confirmed substitutes include the 74HCT573DB,118 and CD74HCT573DBR. Verify pinout compatibility and electrical specifications before substitution.