MR256D08B
Dual Supply 32K x 8 MRAM
FEATURES
• +3.3 Volt power supply
• I/O Voltage range supports wide +1.65 to +3.6 Volt interfaces
• Fast 45 ns read/write cycle
• SRAM compatible timing
• Unlimited read & write endurance
• Data always non-volatile for >20-years at temperature
• RoHS-compliant small footprint BGA package
BENEFITS
• One memory replaces FLASH, SRAM, EEPROM and BBSRAM in systems
for simpler, more efficient designs
RoHS
• Improves reliability by replacing battery-backed SRAM
INTRODUCTION
The MR256D08B is a 262,144-bit magnetoresistive random access memory (MRAM) device organized as
32,768 words of 8 bits. It supports I/O voltages from +1.65 to +3.6 volts. The MR256D08B offers SRAM
compatible 45ns read/write timing with unlimited endurance. Data is always non-volatile for greater than
20-years. Data is automatically protected on power loss by low-voltage inhibit circuitry to prevent writes
with voltage out of specification. The MR256D08B is the ideal memory solution for applications that must
permanently store and retrieve critical data and programs quickly.
The MR256D08B is available in small footprint 8 mm x 8 mm, 48-pin ball grid array (BGA) package with
0.75 mm ball centers.
The MR256D08B provides highly reliable data storage over a wide range of temperatures. The product is
offered with commercial temperature (0 to +70 °C).
CONTENTS
1. DEVICE PIN ASSIGNMENT......................................................................... 2
2. ELECTRICAL SPECIFICATIONS................................................................. 4
3. TIMING SPECIFICATIONS.......................................................................... 8
4. ORDERING INFORMATION....................................................................... 13
5. MECHANICAL DRAWING.......................................................................... 14
6. REVISION HISTORY...................................................................................... 15
How to Reach Us.......................................................................................... 15
Copyright © 2018 Everspin Technologies, Inc.
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MR256D08B Rev. 3.3 3/2018