Authorized distribution · Established 1990 · ISO 9001:2015 Bohemia, New York · 800.647.3343

Everspin MR4A16B MRAM

16 Mb Toggle MRAM with Asynchronous parallel for data that must survive loss of power.

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Family specifications

MR4A16B ordering options

Density / capacity
16 Mb
Interface / type
Asynchronous parallel
I/O width
16-bit
Supply voltage
3.3 V
Package
BGA-48, TSOP-54
Operating temperature
-40 to +85 °C, 0 to +70 °C, -40 to +125 °C
Read/write cycle time
35 ns, 45 ns

Options vary by complete part number. Match the selected device to the controller, board layout and operating conditions.

Available MR4A16B part numbers.

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10 products
MR4A16BCMA35Everspin MR4A16B16 Mb Toggle MRAM with Asynchronous parallel, 16-bit I/O, BGA-48 package, and -40 to +85 °C operation. 16 MbAsynchronous parallel3.3 VBGA-48−40 to 85 °C16-bitMass production (MP)35 nsToggle MRAMMR4A16B
MR4A16BCMA35REverspin MR4A16B16 Mb Toggle MRAM with Asynchronous parallel, 16-bit I/O, BGA-48 package, and -40 to +85 °C operation. 16 MbAsynchronous parallel3.3 VBGA-48−40 to 85 °C16-bitMass production (MP)35 nsToggle MRAMMR4A16B
MR4A16BMA35Everspin MR4A16B16 Mb Toggle MRAM with Asynchronous parallel, 16-bit I/O, BGA-48 package, and 0 to +70 °C operation. 16 MbAsynchronous parallel3.3 VBGA-480 to 70 °C16-bitMass production (MP)35 nsToggle MRAMMR4A16B
MR4A16BMA35REverspin MR4A16B16 Mb Toggle MRAM with Asynchronous parallel, 16-bit I/O, BGA-48 package, and 0 to +70 °C operation. 16 MbAsynchronous parallel3.3 VBGA-480 to 70 °C16-bitMass production (MP)35 nsToggle MRAMMR4A16B
MR4A16BCYS35Everspin MR4A16B16 Mb Toggle MRAM with Asynchronous parallel, 16-bit I/O, TSOP-54 package, and -40 to +85 °C operation. 16 MbAsynchronous parallel3.3 VTSOP-54−40 to 85 °C16-bitMass production (MP)35 nsToggle MRAMMR4A16B
MR4A16BCYS35REverspin MR4A16B16 Mb Toggle MRAM with Asynchronous parallel, 16-bit I/O, TSOP-54 package, and -40 to +85 °C operation. 16 MbAsynchronous parallel3.3 VTSOP-54−40 to 85 °C16-bitMass production (MP)35 nsToggle MRAMMR4A16B
MR4A16BUYS45Everspin MR4A16B16 Mb Toggle MRAM with Asynchronous parallel, 16-bit I/O, TSOP-54 package, and -40 to +125 °C operation. 16 MbAsynchronous parallel3.3 VTSOP-54−40 to 125 °C16-bitMass production (MP)45 nsToggle MRAMMR4A16B
MR4A16BUYS45REverspin MR4A16B16 Mb Toggle MRAM with Asynchronous parallel, 16-bit I/O, TSOP-54 package, and -40 to +125 °C operation. 16 MbAsynchronous parallel3.3 VTSOP-54−40 to 125 °C16-bitMass production (MP)45 nsToggle MRAMMR4A16B
MR4A16BYS35Everspin MR4A16B16 Mb Toggle MRAM with Asynchronous parallel, 16-bit I/O, TSOP-54 package, and 0 to +70 °C operation. 16 MbAsynchronous parallel3.3 VTSOP-540 to 70 °C16-bitMass production (MP)35 nsToggle MRAMMR4A16B
MR4A16BYS35REverspin MR4A16B16 Mb Toggle MRAM with Asynchronous parallel, 16-bit I/O, TSOP-54 package, and 0 to +70 °C operation. 16 MbAsynchronous parallel3.3 VTSOP-540 to 70 °C16-bitMass production (MP)35 nsToggle MRAMMR4A16B

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Operating temperature
Read/write cycle time

Design considerations

For controllers designed around asynchronous SRAM timing, parallel Toggle MRAM adds data persistence without battery backup. Address mapping, package pinout, bus width and read/write timing still need to match. MR5A16A automotive options use a 45 ns cycle; other listed production options use 35 ns.

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