74LVC573APW/AUJ

Latches Overview

The 74LVC573APW/AUJ is an octal D-type transparent latch with 3-state outputs manufactured by Nexperia. It operates within a supply voltage range of 1.2 V to 3.6 V and features overvoltage tolerant inputs up to 5.5 V, enabling direct interfacing with 3.3 V or 5 V devices. The device includes latch enable (LE) and output enable (OE) controls, Schmitt-trigger inputs for noise immunity, and IOFF circuitry for partial power-down protection. It is available in TSSOP20 packaging and complies with JEDEC standards.

Latches Feature Summary

• Octal D-type transparent latch architecture with 3-state outputs
• Overvoltage tolerant inputs compatible with 5 V logic levels
• IOFF circuitry prevents backflow current during partial power-down
• Schmitt-trigger action at all inputs for improved noise tolerance

Latches Applications

• Bus-oriented applications requiring data storage and transfer
• Mixed 3.3 V and 5 V logic environments
• Partial power-down mode operation systems

Latches Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature range. Ensure compatibility with system voltage requirements and interface standards before procurement. Confirm that the component meets necessary environmental and safety certifications for the intended application.

Latches Selection Notes

Select this component for designs requiring high-density data latching with 3-state bus capabilities. Consider the wide supply voltage range and input tolerance when interfacing with mixed-voltage logic families. Evaluate thermal performance and package constraints relative to the PCB layout requirements.

Latches Part Context

This part belongs to the 74LVC573A family of octal D-type transparent latches. It is designed for low-power CMOS applications and offers flow-through pinout architecture for ease of implementation. The device supports various operating temperatures and complies with industry-standard JEDEC specifications.

Latches Replacement Considerations

Direct substitutes include other 74LVC573 variants from different manufacturers, provided they match the electrical characteristics and pinout configuration. Verify functional equivalence regarding propagation delay, output drive capability, and input thresholds before substitution.

Latches FAQ

What is the function of the IOFF circuitry?

The IOFF circuitry disables the outputs when the device is powered down, preventing potentially damaging backflow current through the device.

Can this device interface directly with 5 V logic?

Yes, the inputs are overvoltage tolerant up to 5.5 V, allowing direct interfacing with 3.3 V or 5 V devices.