MR256A08BCYS35 EverSpin Technologies Inc, MR256A08BCYS35 Datasheet

MR256A08BCYS35

Manufacturer Part Number

MR256A08BCYS35

Description

IC MRAM 256KB 35NS 44TSOP

Manufacturer

EverSpin Technologies Inc

Series

-r

Datasheet

1.MR256A08BCMA35.pdf (13 pages)

Specifications of MR256A08BCYS35

Format - Memory

RAM

Memory Type

MRAM (Magnetoresistive RAM)

Memory Size

256K (32K x 8)

Speed

35ns

Interface

Parallel

Voltage - Supply

3 V ~ 3.6 V

Operating Temperature

-40°C ~ 85°C

Package / Case

44-TSOP (0.400", 10.16mm Width)

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

Other names

819-1025

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

MR256A08BCYS35

Manufacturer:

Quantity:

26 000

Current page: 1 of 13
Download datasheet (2Mb)

Features

• Fast 35 ns Read/Write Cycle

• SRAM Compatible Timing Uses Existing SRAM Controllers Without

Redesign

• Unlimited Read & Write Endurance

• Data Always Non-volatile for >20-years at Temperature

• One Memory Replaces Flash, SRAM, EEPROM and BBRAM in System

for Simpler, More Efficient Design

• Replace battery-backed SRAM solutions with MRAM to eliminate

battery assembly, reliability, and liability issues

• 3.3 Volt Power Supply

• Automatic Data Protection on Power Loss

• Commercial, Industrial, and Automotive Temperatures

• RoHS-Compliant SRAM-compatible TSOPII Package

• RoHS-Compliant SRAM-compatible BGA Package Shrinks Board Area

By Three Times

Introduction

The MR256A08B is a 262,144-bit magnetoresistive random access memory (MRAM) device organized

as 32,768 words of 8 bits. The MR256A08B offers SRAM compatible 35 ns 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 MR256A08B is the ideal memory solution for applications that must permanently

store and retrieve critical data and programs quickly.

The MR256A08B is available in small footprint 400-mil, 44-lead plastic small-outline TSOP type-II

package or 8 mm x 8 mm, 48-pin ball grid array (BGA) package with 0.75 mm ball centers. These

packages are compatible with similar low-power SRAM products and other non-volatile RAM products.

The MR256A08B provides highly reliable data storage over a wide range of temperatures. The product

is offered with commercial temperature (0 to +70

automotive temperature (-40 to +125

Everspin Technologies

Data Sheet: Advance Information

C) range options.

C), industrial temperature (-40 to +85

Document Number: MR256A08B

32Kx8 MRAM Memory

MR256A08B

48-BGA

Rev. 1, 3/2009

C), and

44-TSOP

Related parts for MR256A08BCYS35

MR256A08BCYS35 Summary of contents

Page 1

... 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 MR256A08B is the ideal memory solution for applications that must permanently store and retrieve critical data and programs quickly. ...

Page 2

Device Pin Assignment 44-Pin TSOP Type II Everspin Technologies Data Sheet: Advance Information 2 Document Number: MR256A08B 48-Pin BGA Rev. 1, 3/2009 ...

Page 3

Electrical Specifications Absolute Maximum Ratings This device contains circuitry to protect the inputs against damage caused by high static voltages or electric fields; however advised that normal precautions be taken to avoid application of any voltage greater than ...

Page 4

... Power Up and Power Down Sequencing MRAM is protected from write operations whenever V exceeds V , there is a startup time before read or write operations can start. DDmin This time allows memory power supplies to stabilize. The /E and /W control signals should track V on power startup time. In most systems, this means that these signals should be pulled up with a resistor so that signal remains high if the driving signal is Hi-Z during power up ...

Page 5

Everspin Technologies Data Sheet: Advance Information 5 Document Number: MR256A08B Rev. 1, 3/2009 ...

Page 6

Timing Specifications Everspin Technologies Data Sheet: Advance Information 6 Document Number: MR256A08B Rev. 1, 3/2009 ...

Page 7

Timing Specifications Everspin Technologies Data Sheet: Advance Information 7 Document Number: MR256A08B Rev. 1, 3/2009 ...

Page 8

Timing Specifications Everspin Technologies Data Sheet: Advance Information 8 Document Number: MR256A08B Rev. 1, 3/2009 ...

Page 9

Timing Specifications Everspin Technologies Data Sheet: Advance Information 9 Document Number: MR256A08B Rev. 1, 3/2009 ...

Page 10

... Ordering Information Part Number MR256A08BYS35 MR256A08BYS35R MR256A08BMA35 MR256A08BCYS35 MR256A08BCYS35R MR256A08BCMA35 MR256A08BMYS35 MR256A08BMYS35R MR256A08BMMA35 Everspin Technologies Data Sheet: Advance Information Description 3.3 V 32Kx8 MRAM 44-TSOP 3.3 V 32Kx8 MRAM 44-TSOP T&R 3.3 V 32Kx8 MRAM 48-BGA 3.3 V 32Kx8 MRAM 44-TSOP 3.3 V 32Kx8 MRAM 44-TSOP T&R 3 ...

Page 11

Mechanical Drawing (44-TSOP) Everspin Technologies Data Sheet: Advance Information 11 Document Number: MR256A08B Rev. 1, 3/2009 ...

Page 12

Mechanical Drawing (48-BGA) Everspin Technologies Data Sheet: Advance Information 12 Document Number: MR256A08B Rev. 1, 3/2009 ...

Page 13

Revision History Revision Date 0 Sep 12, 2008 1 Mar 25, 2009 How to Reach Us: EverSpin Technologies, Inc. 1300 N. Alma School Road, CH-400 Chandler, AZ 85224 (480) 347-1111 www.Everspin.com Everspin Technologies Data Sheet: Advance Information Description of Change ...

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