MC74LCX573MG

Latches Overview

The MC74LCX573MG is a low-voltage CMOS octal transparent latch manufactured by onsemi. It operates from a 2.0 V to 3.6 V supply 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 three-state standard outputs controlled by Latch Enable (LE) and Output Enable (OE) inputs. It supports live insertion and withdrawal, offers balanced 24 mA output drive capability, and exhibits near-zero static supply current.

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 operations
• Provides IOFF specification to guarantee high impedance when VCC is 0 V
• Includes latchup performance exceeding 500 mA

Latches Applications

• Interface between 5.0 V TTL logic and low-voltage CMOS systems
• Data storage in memory architectures
• Buffering applications requiring high-impedance states
• System designs supporting live insertion and withdrawal

Latches Procurement Notes

Verify the specific package suffix 'M' corresponds to the SOEIAJ-20 housing before procurement. Confirm that the ordered part number includes the 'G' suffix if lead-free compliance is required, as the base model designation does not inherently specify environmental status. Cross-reference the manufacturer's ordering information table to ensure availability of the tape-and-reel or rail packaging format needed for your assembly process.

Latches Selection Notes

Select this component when designing systems requiring an octal latch with 5.0 V tolerance within a low-voltage environment. Ensure the operating voltage range of 2.0 V to 3.6 V aligns with your system power rails. Consider the SOEIAJ-20 package dimensions for PCB layout constraints. Verify that the input transition rates and load capacitances in your application fall within the specified AC characteristics limits.

Latches Part Context

This device belongs to the LCX logic family, which is designed for low-voltage operation while maintaining compatibility with higher voltage interfaces. The MC74LCX573 variant specifically provides octal data storage with three-state outputs. The MG suffix indicates the SOEIAJ-20 surface-mount package, distinguishing it from SOIC or TSSOP variants within the same logical function family.

Latches Replacement Considerations

Direct substitutes include SN74LVC573ANSR from Texas Instruments and 74LVC573AD,118 from Nexperia USA Inc. These alternatives offer similar octal latch functionality but may differ in specific electrical parameters or package options. Verify pinout compatibility and voltage tolerances before substitution.