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MR25H256ACDF

MR25H256ACDF

Everspin Technologies Inc.
MRAM (Magnetoresistive RAM) Memory IC 256Kbit SPI 40 MHz 8-DFN (5x6)
Active6,198 in stock
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Overview

The MR25H256ACDF is a 256Kbit Magnetoresistive RAM (MRAM) organized as 32,768 words by 8 bits. It utilizes a serial SPI interface and functions as a non-volatile memory that provides the performance of SRAM with the permanent storage of Flash, featuring unlimited write endurance and 20-year data retention.

Why Choose This Part

This MRAM device offers unlimited write endurance and zero write delays, eliminating the wear-out cycles and 'wait' states typical of EEPROM or Flash. Its automatic data protection on power loss and low current sleep mode make it highly efficient for battery-backed industrial systems.

Applications

Industrial Data Logging
Ideal for high-frequency logging where data is written continuously and must be preserved instantly upon power failure.
PLC Program Storage
Reliable storage for configuration and firmware in industrial controllers requiring frequent updates without wear-out concerns.
Edge Computing Buffer
Acts as a high-speed buffer for sensor data before transmission, ensuring no data loss during sudden voltage drops.

Key Specifications

Technology MRAM (Magnetoresistive RAM)
Memory Size 256Kbit
Memory Type Non-Volatile
Memory Format RAM
Mounting Type Surface Mount
Package / Case 8-VDFN Exposed Pad
Clock Frequency 40 MHz
Memory Interface SPI
Voltage - Supply 2.7V ~ 3.6V
Memory Organization 32K x 8
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 8-DFN (5x6)

Getting Started

To integrate this part, use a standard SPI master operating at up to 40 MHz within a 2.7V to 3.6V supply range. The 8-DFN package requires precise reflow profiling consistent with MSL-3 ratings; verify SPI mode 0 or 3 compatibility in your microcontroller's firmware.

MR25H256 Family

Part NumberDifferenceStock
MR25H256ACDFR Pkg: DFN-8 13,093

Also Consider

25LC256-I/SN MCHPMicrochip Technology - A standard SPI EEPROM for cost-sensitive applications that do not require the unlimited endurance or instant write speed of MRAM.

Categories

Memory & Storage > FRAM