Datasheet > FM25V20-G

FM25V20-G

更新时间： 2024-01-11 13:36:15

品牌	Logo	应用领域
铁电 - RAMTRON		存储
页数	文件大小	规格书
17页	531K
描述
2Mb Serial 3V F-RAM Memory

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中文翻译

获取价格

数据手册

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FM25V20-G 数据手册

FM25V20 – 2Mb SPI F-RAM

System Hookup

For a microcontroller that has no dedicated SPI bus, a

general purpose port may be used. To reduce

hardware resources on the controller, it is possible to

connect the two data pins together and tie off the

Hold pin. Figure 4 shows a configuration that uses

only three pins.

The SPI interface uses a total of four pins: clock,

data-in, data-out, and chip select. A typical system

configuration uses one or more FM25V20 devices

with a microcontroller that has a dedicated SPI port,

as Figure 3 illustrates. Note that the clock, data-in,

and data-out pins are common among all devices.

The Chip Select and Hold pins must be driven

separately for each FM25V20 device.

SCK

MOSI

MISO

SPI

FM25V20

HOLD

FM25V20

S HOLD

Microcontroller

SS1

SS2

HOLD1

HOLD2

MOSI : Master Out Slave In

MISO : Master In Slave Out

SS : Slave Select

Figure 3. 4Mbit (512KB) System Configuration with SPI port

P1.0

P1.1

Microcontroller

FM25V20

HOLD

VDD

P1.2

Figure 4. System Configuration without SPI port

Rev. 3.0

August 2012

Page 4 of 17

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与FM25V20-G相关器件

型号	品牌	获取价格	描述	数据表
FM25V20-GTR	CYPRESS	获取价格	2Mb Serial 3V F-RAM Memory
FM25V20-GTR	RAMTRON	获取价格	2Mb Serial 3V F-RAM Memory
FM25V20-PG	RAMTRON	获取价格	2Mb Serial 3V F-RAM Memory
FM25V20-PG	CYPRESS	获取价格	2Mb Serial 3V F-RAM Memory
FM25V40	CYPRESS	获取价格	4-Mbit (512 K Ã 8) Serial (SPI) F-RAM
FM25V40-DCG	CYPRESS	获取价格	4-Mbit (512 K Ã 8) Serial (SPI) F-RAM
FM25V40-DGCTR	CYPRESS	获取价格	4-Mbit (512 K Ã 8) Serial (SPI) F-RAM
FM25V40-GC	CYPRESS	获取价格	4-Mbit (512 K Ã 8) Serial (SPI) F-RAM
FM25V40-GCTR	CYPRESS	获取价格	4-Mbit (512 K Ã 8) Serial (SPI) F-RAM
FM25VN02-DG	RAMTRON	获取价格	256Kb Serial 3V F-RAM Memory