74ALVC573PW,112

Latches Overview

The Nexperia 74ALVC573PW,112 is an octal D-type transparent latch with 3-state outputs housed in a 20-TSSOP package. 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 protection. Propagation delays (Dn to Qn) range from 1.0 ns to 6.2 ns depending on voltage, while output drive capabilities reach ±24 mA at 3.0 V.

Latches Feature Summary

• Schmitt trigger action on all inputs provides tolerance for slow rise and fall times.
• IOFF circuitry enables partial power-down mode by disabling outputs to prevent damaging backflow current.
• Overvoltage tolerant inputs allow direct interface with TTL levels without external resistors.

Latches Applications

• Bus-oriented applications requiring 3-state non-inverting outputs
• Input or output port expansion for microprocessors and microcomputers
• Data latching in low-voltage digital logic systems

Latches Procurement Notes

Verify the specific ordering suffix ',112' against official Nexperia documentation to confirm tape-and-reel packaging specifications. Ensure the component meets RoHS3 compliance requirements for your region. Cross-reference the full part number with the manufacturer's latest product status to confirm active production availability before finalizing procurement plans.

Latches Selection Notes

Select this component when designing systems requiring high-speed data latching with low power consumption. The ALVC series offers superior speed compared to standard LVC devices. Ensure the design accommodates the specified input transition rates and utilizes the IOFF feature if partial power-down states are required in the system architecture.

Latches Part Context

This device belongs to the 74ALVC family of high-speed CMOS logic. It serves as an 8-bit storage element compatible with various low-voltage logic standards. The TSSOP20 package provides a compact solution for space-constrained designs while maintaining electrical performance suitable for modern embedded systems.

Latches Replacement Considerations

The 74ALVC573PW is the base package variant. Other packages include SO20 (74ALVC573D) and DHVQFN20 (74ALVC573BQ). Verify pin compatibility and thermal characteristics when substituting between package types.

Latches FAQ

How does the IOFF circuitry function during power-down?

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

What is the effect of the OE input on the latch state?

A HIGH on the OE input causes the outputs to assume a high-impedance OFF-state, but it does not affect the internal state stored in the latches.