MC74LCX573M

Latches Overview

The MC74LCX573 is a low-voltage CMOS octal transparent latch featuring 5 V-tolerant inputs and outputs. It operates from a 2.0 V to 3.6 V supply voltage with near-zero static power consumption. 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 includes an IOFF specification for high impedance when VCC is 0 V.

Latches Feature Summary

• Features 5.0 V tolerant inputs and outputs for safe interfacing with 5.0 V TTL logic devices.
• Provides balanced 24 mA source and sink output current capability across the operating voltage range.
• Supports live insertion and withdrawal operations without causing system damage.
• Guarantees high impedance state on inputs and outputs when VCC equals 0 V via the IOFF specification.

Latches Applications

• Interface between 5.0 V TTL logic and low-voltage CMOS systems
• Memory address and data register applications
• Buffering and bus-oriented configurations

Latches Procurement Notes

Verify package suffix compatibility during procurement. The 'M' suffix indicates the SOEIAJ-20 package. Confirm RoHS compliance status as older revisions may differ. Ensure ordering information matches the required shipping format, such as rail or tape and reel quantities specified in the manufacturer's documentation.

Latches Selection Notes

Select this component for designs requiring octal latching with 5 V tolerance at low voltages. Verify that the operating temperature range of -55°C to +125°C meets environmental requirements. Check input transition rates against the recommended operating conditions to ensure signal integrity within the specified limits.

Latches Part Context

This part belongs to the LCX series of low-voltage CMOS logic devices manufactured by onsemi. It is designed for high-performance applications requiring low power consumption and fast switching speeds. The device serves as a direct replacement for similar octal latches in portable and battery-powered electronics where voltage translation is necessary.

Latches Replacement Considerations

Direct substitutes include MC74LCX573DWG and MC74LCX573DWR2G. Verify pinout compatibility and electrical specifications before substitution. Ensure the alternative package type fits the existing PCB footprint constraints.