MXD1210CPA+

Overview

The MXD1210CPA+ is a nonvolatile RAM controller manufactured by Analog Devices Inc. (formerly Maxim Integrated). It converts standard volatile CMOS RAM into nonvolatile memory by monitoring the power supply and providing write protection during marginal conditions. The device switches to battery-backup mode when power fails. Key electrical parameters include a supply voltage range of 4.75V to 5.5V, an operating temperature range of 0°C to +70°C, and a quiescent current of 230µA in normal mode. It features a low forward-voltage drop on the VCC supply switch and offers 5% or 10% power-fail detection options selectable via the TOL pin.

Feature Summary

• Battery backup capability with optional redundant battery support for extended data retention
• Automatic memory write protection triggered by power failure detection to prevent data corruption
• Battery freshness seal mode isolates batteries from the system during storage to preserve shelf life
• Battery status warning mechanism tests battery condition during power-up cycles

Applications

• Microprocessor systems requiring reliable data storage
• Computers needing nonvolatile memory solutions
• Embedded systems utilizing standard CMOS RAM

Procurement Notes

Verify the specific suffix 'CPA+' indicates lead-free packaging within the PDIP-8 package. Confirm the C-suffix designation aligns with the required 0°C to +70°C commercial temperature range. Ensure the TOL pin configuration matches the desired power-fail detection threshold before integration. Cross-reference the manufacturer's latest documentation for any updates regarding the Analog Devices acquisition impact on part availability.

Selection Notes

Select this component when converting volatile CMOS RAM to nonvolatile memory is required. Choose based on the necessary operating temperature range, as the C-suffix covers commercial temperatures. Consider the 230µA quiescent current for power-sensitive designs. Evaluate the need for battery redundancy features if extended backup duration is critical for the application environment.

Part Context

The MXD1210 series includes variants like the MXD1210EWE+ for wider temperature ranges and different packages. The CPA+ variant specifically denotes the PDIP-8 package with lead-free construction. This controller belongs to the broader family of memory management ICs designed to enhance data integrity in systems prone to power fluctuations.

Replacement Considerations

MXD1210CPA+