74LV573D,118

Latches Overview

The 74LV573D,118 is an octal D-type transparent latch with 3-state outputs manufactured by NXP USA Inc. It operates within a supply voltage range of 1.0 V to 5.5 V and accepts TTL input levels between VCC = 2.7 V and VCC = 3.6 V. The device features separate D-type inputs for each latch and common Latch Enable (LE) and Output Enable (OE) inputs. It is housed in a SO20 plastic small outline package (SOT163-1). Static characteristics include a maximum supply current of 160 µA at VCC = 5.5 V and an input leakage current of 1.0 µA. Dynamic performance includes propagation delays ranging from 12 ns to 39 ns depending on voltage and temperature.

Latches Feature Summary

• Wide operating voltage range supporting low-voltage applications down to 1.0 V
• TTL-compatible input levels when operating between 2.7 V and 3.6 V
• Inputs and outputs positioned on opposite sides of the package for microprocessor interfacing
• ESD protection exceeding 2000 V via Human Body Model and 200 V via Machine Model

Latches Applications

• Bus-oriented applications requiring data storage and transfer
• Microprocessor input or output port interfaces
• System designs requiring pin and function compatibility with 74HC573 and 74HCT573

Latches Procurement Notes

Verify the specific ordering suffix and package variant against the manufacturer's latest documentation before procurement. Confirm that the SO20 package dimensions align with the target PCB footprint. Ensure environmental specifications meet the operational requirements for the intended application temperature range.

Latches Selection Notes

Select this component for designs requiring wide voltage flexibility and TTL compatibility. Consider the SO20 package constraints regarding thermal dissipation and board space. Evaluate the propagation delay characteristics relative to system clock speeds to ensure timing margins are met across the full operating voltage and temperature range.

Latches Part Context

This device belongs to the 74LV series of low-voltage CMOS logic components. It is functionally identical to the 74LV373 but utilizes a different pin arrangement. The part is designed to be pin and function compatible with standard 74HC573 and 74HCT573 devices, facilitating direct upgrades or replacements in existing circuit architectures without layout modifications.

Latches Replacement Considerations

The 74LV373 serves as a functional equivalent with distinct pinout configuration. Direct pin-compatible alternatives include the 74HC573 and 74HCT573, provided voltage levels and drive strengths match the design requirements.