FM31256 datasheet(7/8 Pages) RAMTRON

Part #	FM31256

Description	Nonvolatile F-RAM Memory Module (TWR-FRAM)

Download	8 Pages

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Manufacturer	RAMTRON [Ramtron International Corporation]

Direct Link	http://www.ramtron.com

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7 / 8 page

Jumper Option

Type

Setting Description

J25

FM31T378 FOUT

3-pin

1-2

Connects to INTERRUPT jumper

*2-3*

Disconnects pin from INTERRUPT jumper

J24

FM31T378 INT

3-pin

1-2

Connects to INTERRUPT jumper

*2-3*

Disconnects pin from INTERRUPT jumper

J33

FM33256B ACS

3-pin

1-2

Connects to INTERRUPT jumper

*2-3*

Disconnects pin from INTERRUPT jumper

J36

FM33256B PFO

3-pin

1-2

Connects to INTERRUPT jumper

*2-3*

Disconnects pin from INTERRUPT jumper

J37

FM33256B RESET

3-pin

1-2

Connects to RESET jumper

*2-3*

Disconnects pin from RESET jumper

J46

FM22L16 SELECT

3-pin

*1-2*

Enables ‘138 decoder to drive chip

enables to FM22L16 devices

2-3

Disables ‘138 decoder from driving chip

enables to FM22L16 devices

Part Number

Quantity

Component

FM22L16

2

4-Mb Parallel F-RAM (expandable to 8-Mb)

FM1106

4

8-bit non-volatile GPIO State Saver

FM25V10

1

1-Mb SPI Serial FRAM

FM24W256

1

256-Kb I2C Serial FRAM

FM31T378

1

256-Kb I2C TCXO and Processor Companion

FM31256

1

256-Kb I2C RTC/Processor Companion

FM33256B

1

256-Kb SPI RTC/Processor Companion

TWR-FRAM Features

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FM31256 Datasheet(PDF) 7 Page - Ramtron International Corporation

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