Datasheet > FM25V20A-G

FM25V20A-G

更新时间： 2024-03-03 10:08:55

品牌	Logo	应用领域
英飞凌 - INFINEON		/
页数	文件大小	规格书
33页	678K
描述
2Mb 3.3V Industrial 40MHz SPI F-RAM in 8-pin SOIC

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FM25V20A-G 数据手册

2-Mbit (256K × 8) Serial (SPI) F-RAM

serial (SPI), 256K × 8, 40 MHz, industrial

Functional description

The FM25V20A is a 2-Mbit nonvolatile memory employing an advanced ferroelectric process. A ferroelectric

random access memory or F-RAM is nonvolatile and performs reads and writes similar to a RAM. It provides

reliable data retention for 151 years while eliminating the complexities, overhead, and system-level reliability

problems caused by serial flash, EEPROM, and other nonvolatile memories.

Unlike serial flash and EEPROM, the FM25V20A performs write operations at bus speed. No write delays are

incurred. Data is written to the memory array immediately after each byte is successfully transferred to the

device. The next bus cycle can commence without the need for data polling. In addition, the product offers

substantial write endurance compared with other nonvolatile memories. The FM25V20A is capable of supporting

10¹⁴read/write cycles, or 100 million times more write cycles than EEPROM.

These capabilities make the FM25V20A ideal for nonvolatile memory applications, requiring frequent or rapid

writes. Examples range from data collection, where the number of write cycles may be critical, to demanding

industrial controls where the long write time of serial flash or EEPROM can cause data loss.

The FM25V20A provides substantial benefits to users of serial EEPROM or flash as a hardware drop-in

replacement. The FM25V20A uses the high-speed SPI bus, which enhances the high-speed write capability of

F-RAM technology. The device incorporates a read-only Device ID that allows the host to determine the

manufacturer, product density, and product revision. The device specifications are guaranteed over an industrial

temperature range of –40°C to +85°C.

Logic block diagram

Instruction Decoder

Clock Generator

Control Logic

Write Protect

SCK

256 K x 8

FRAM Array

Instruction Register

Address Register

Counter

Data I/O Register

Nonvolatile Status

Datasheet

001-90261 Rev. *J

2023-12-22

123 4 5 6 7...33

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型号	品牌	描述	获取价格	数据表
FM25V20A-GTR	CYPRESS	2-Mbit (256 K Ã 8) Serial (SPI) F-RAM	获取价格
FM25V20A-GTR	INFINEON	2Mb 3.3V Industrial 40MHz SPI F-RAM in 8-pin SOIC	获取价格
FM25V20A-PG	INFINEON	2Mb 3.3V Industrial 25MHz SPI F-RAM in 8-pin DIP	获取价格
FM25V20-DG	RAMTRON	2Mb Serial 3V F-RAM Memory	获取价格
FM25V20-DG	CYPRESS	2Mb Serial 3V F-RAM Memory	获取价格
FM25V20-DGTR	CYPRESS	2Mb Serial 3V F-RAM Memory	获取价格