74ALVC573D,112

Latches Overview

The Nexperia 74ALVC573D,112 is an octal D-type transparent latch with 3-state outputs. It operates within a supply voltage range of 1.65 V to 3.6 V and supports ambient temperatures from -40 °C to +125 °C. The device features Schmitt trigger inputs for slow signal tolerance and IOFF circuitry for partial power-down applications. Propagation delays range from 1.0 ns to 6.9 ns depending on voltage and temperature. Input leakage current is specified at ±20 μA maximum under full temperature conditions.

Latches Feature Summary

• Octal D-type transparent latch architecture with 3-state outputs
• IOFF circuitry prevents backflow current during partial power-down
• Schmitt trigger inputs provide tolerance for slow rise and fall times
• Overvoltage tolerant inputs allow direct interface with TTL levels

Latches Applications

• Bus-oriented data storage in microprocessor systems
• Input/output port expansion for microcomputers
• Transparent latching for high-speed data transfer interfaces

Latches Procurement Notes

Verify the ordering suffix

Latches Selection Notes

Select this component when an octal latch with 3-state outputs is required for bus interfacing. Ensure the design accommodates the 1.65 V to 3.6 V supply range and utilizes the IOFF feature if partial power-down functionality is needed. Verify that the SO20 package dimensions fit the PCB layout constraints.

Latches Part Context

This part belongs to the 74ALVC family of logic devices, characterized by advanced low-voltage CMOS technology. It serves as a high-speed alternative to standard HC or HCT latches, offering improved performance at lower voltages while maintaining compatibility with 5 V tolerant systems through its specific input characteristics.

Latches Replacement Considerations

Public confirmed substitute: 74ALVC573PW,118 (TSSOP20 package). Verify pinout compatibility and thermal dissipation requirements when switching between SO20 and TSSOP20 packages.