MC74LCX573DWR2

Latches Overview

The MC74LCX573DWR2 is a low-voltage CMOS octal transparent latch with 3-state outputs manufactured by onsemi. It operates from a supply voltage range of 1.65 V to 5.5 V and features 5.0 V tolerant inputs and outputs, allowing safe interfacing with 5.0 V devices. The device contains eight D-type latches with buffered common Latch Enable (LE) and Output Enable (OE) inputs. It supports live insertion and withdrawal and includes an IOFF specification that guarantees high impedance when VCC is 0 V.

Latches Feature Summary

• Features 5.0 V tolerant inputs and outputs for direct interface with 5.0 V TTL logic
• Supports live insertion and withdrawal capabilities
• Includes IOFF specification to guarantee high impedance state during power-off conditions
• Utilizes flow-through pinout design to facilitate easy printed circuit board layout

Latches Applications

• Microprocessor input or output port interfaces
• Bus interfacing applications requiring 3-state outputs
• Systems requiring live insertion and withdrawal support
• Low-voltage logic level translation between 1.65 V and 5.5 V domains

Latches Procurement Notes

Verify the specific ordering suffix against official documentation, as the provided model lacks the standard 'G' lead-free indicator found in current datasheets. Confirm package availability, as some variants may be discontinued. Ensure compliance with RoHS and halogen-free requirements if specified for the project. Check for automotive '-Q' suffix requirements if AEC-Q100 qualification is necessary.

Latches Selection Notes

Select this component for designs requiring wide supply voltage operation from 1.65 V to 5.5 V. The 5.0 V tolerance allows compatibility with legacy 5 V systems without additional level shifting. Consider the SOIC-20 package for surface mount assembly. Verify propagation delay specifications against system timing requirements at the target operating voltage.

Latches Part Context

This part belongs to the MC74LCX573 family of octal transparent latches. It is functionally similar to other octal latches but distinguished by its low-voltage CMOS technology and 5 V tolerance. The device is designed for high performance in portable and battery-powered applications due to near-zero static supply current.

Latches Replacement Considerations

MC74LCX573DTG: TSSOP-20 package variant. MC74LCX573DWG: Rail-packaged SOIC-20 variant. NLV74LCX573DTR2G: Discontinued TSSOP-20 variant.