MXD1210C/D

Overview

The MXD1210 is a nonvolatile RAM controller that converts standard volatile CMOS RAM into nonvolatile memory. It monitors the power supply to provide write protection during marginal conditions and switches to battery-backup mode upon failure. The device operates with a supply voltage range of 4.5V to 5.5V, drawing 230µA in operating mode and 2nA in backup mode. It supports single or redundant batteries and offers 5% or 10% power-fail detection options.

Feature Summary

• Converts standard volatile CMOS RAM into nonvolatile memory
• Continuously monitors power supply for write protection
• Switches to battery-backup mode when power fails
• Supports optional redundant battery configuration

Applications

• Microprocessor Systems
• Computers
• Embedded Systems

Procurement Notes

Verify the specific suffix (C, E, MJA) to confirm the required temperature range and package type. Confirm whether the system requires single or dual battery inputs. Ensure the TOL pin configuration matches the desired power-fail detection threshold before finalizing the order.

Selection Notes

Select based on the required operating temperature range: C for commercial, E for industrial, and MJA for military specifications. Choose the appropriate package style such as SOIC, DIP, or Wide SOIC. Determine if the application necessitates the redundant battery feature or if a single battery connection suffices.

Part Context

The MXD1210 belongs to the Maxim Integrated family of nonvolatile RAM controllers. These devices are designed to protect data integrity in volatile memory systems by managing power transitions and battery backup seamlessly without requiring complex software intervention.

Replacement Considerations

MXD1210CSA+

FAQ

How does the MXD1210 detect power failure?

It uses the TOL pin to set the detection threshold at either 5% or 10% below the nominal supply voltage.

What happens to the RAM during a power failure?

The device holds the chip-enable output low to prevent writes and switches power to the connected battery.