MXD1210ESA+T

Overview

The MXD1210ESA+T is a nonvolatile RAM controller designed to convert standard volatile CMOS RAM into nonvolatile memory. It operates within a supply voltage range of 4.5V to 5.5V and features a quiescent current of 230µA in normal mode, dropping to 2nA in battery backup mode. The device provides write protection during power failures and supports optional redundant batteries. It is housed in an 8-pin SO package and functions across a temperature range of -40°C to +85°C.

Feature Summary

• Battery Backup
• Memory Write Protection
• Battery Freshness Seal
• Optional Redundant Battery

Applications

• Microprocessor Systems
• Computers
• Embedded Systems

Procurement Notes

Verify the specific suffix against official documentation to confirm lead-free status and packaging type. Confirm that the 'T' designation aligns with reel or cut tape requirements for surface mount assembly processes. Ensure compatibility with existing board layouts before procurement.

Selection Notes

Select this component when integrating standard volatile CMOS RAM requires nonvolatile retention capabilities without complex external circuitry. Evaluate the need for battery redundancy features and ensure the operating environment falls within the specified temperature range for reliable performance.

Part Context

This part belongs to the MXD1210 series of nonvolatile RAM controllers manufactured by Analog Devices / Maxim Integrated. It serves as a bridge between volatile memory and system power supplies, ensuring data integrity during power transitions through automatic switching and protection mechanisms.

Replacement Considerations

MXD1210ESA

FAQ

How does the MXD1210 protect data during a power failure?

It detects power-fail conditions and holds the chip-enable output low to prevent writes, while simultaneously switching power to the RAM from a connected battery source.

What is the purpose of the freshness-seal mode?

Freshness-seal mode isolates batteries from the system upon initial connection, preventing discharge until the main power supply exceeds the trip point, thus preserving shelf life.