MXD1210ESA+

Overview

The MXD1210ESA+ is a nonvolatile RAM controller manufactured by Analog Devices Inc./Maxim Integrated. It converts standard volatile CMOS RAM into nonvolatile memory and monitors the power supply to provide write protection during marginal conditions. The device operates within a voltage range of 4.5V to 5.5V, with a maximum operating temperature of +85°C and a minimum of -40°C. It features a quiescent current of 230µA in normal mode and 2nA in battery-backup mode. The component is housed in an 8-pin SOIC package.

Feature Summary

• Battery backup capability with low forward-voltage drop on VCC supply switch
• Memory write protection activated when power supply is out-of-tolerance
• Battery freshness seal prevents discharge during storage
• Optional redundant battery support for extended reliability

Applications

• Microprocessor Systems
• Computers
• Embedded Systems

Procurement Notes

Verify the specific suffix 'ESA+' indicates lead-free packaging in the 8-SOIC format. Confirm the industrial temperature grade (-40°C to +85°C) matches system requirements. Ensure the TOL pin configuration aligns with the desired power-fail detection threshold (5% or 10%). Check for availability constraints as distribution may be limited.

Selection Notes

Select this controller for applications requiring reliable data retention in volatile RAM without complex interface protocols. Consider the 230µA operating current for power-sensitive designs. Evaluate the need for battery redundancy if higher uptime is required. Ensure the 8-pin SOIC footprint fits the PCB layout constraints.

Part Context

This component belongs to the MXD1210 series of nonvolatile RAM controllers. It is designed to work with standard CMOS RAM chips to create nonvolatile memory solutions. The series includes variants with different temperature ranges and package types, such as PDIP and Wide SOIC options.

Replacement Considerations

MXD1210EPA+