Infineon FM25V20A-G

256K x 8-40°C ~ 85°C (TA)

Overview

■ 2-Mbit ferroelectric random access memory (F-RAM) logically organized as 256 K × 8 ❐ High-endurance 100 trillion (1014) read/writes ❐ 151-year  ❐ NoDelay™ writes ❐ Advanced high-reliability ferroelectric process ■ Very fast serial peripheral interface (SPI) ❐ Up to 40-MHz frequency ❐ Direct hardware replacement for serial flash and EEPROM ❐ Supports SPI mode 0 (0, 0) and mode 3 (1, 1) ■ Sophisticated write protection scheme ❐ Hardware protection using the Write Protect (WP) pin ❐ Software protection using Write Disable instruction ❐ Software block protection for 1/4, 1/2, or entire array ■ Device ID ❐ Manufacturer ID and Product ID ■ Low power consumption ❐ 300 A active current at 1 MHz ❐ 100 A (typ) standby current ❐ 3 A sleep mode current ■ Low-voltage operation: VDD = 2.0 V to 3.6 V ■ Industrial temperature: –40 C to +85 C ■ Packages ❐ 8-pin small outline integrated circuit (SOIC) package ❐ 8-pin dual flat no leads (DFN) package ■ Restriction of hazardous substances (RoHS) compliant Functional Overview 

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 1014 read/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.

Features

Applications

• servers
• supercomputers
• telecommunications
• workstations,
• DVD disk buffer
• data buffer
• nonvolatile BIOS memory
• Camcorders
• embedded logic
• eDRAM