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FM25C160B-GA Scheda tecnica(PDF) 1 Page - Cypress Semiconductor |
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FM25C160B-GA Scheda tecnica(HTML) 1 Page - Cypress Semiconductor |
1 / 20 page FM25C160B 16-Kbit (2 K × 8) Serial (SPI) Automotive F-RAM Cypress Semiconductor Corporation • 198 Champion Court • San Jose , CA 95134-1709 • 408-943-2600 Document Number: 001-86150 Rev. *A Revised January 23, 2014 16-Kbit (2 K × 8) Serial (SPI) Automotive F-RAM Features ■ 16-Kbit ferroelectric random access memory (F-RAM) logically organized as 2 K × 8 ❐ High-endurance 10 trillion (10 13) read/writes ❐ 121-year data retention (See the Data Retention and Endurance table) ❐ NoDelay™ writes ❐ Advanced high-reliability ferroelectric process ■ Very fast serial peripheral interface (SPI) ❐ Up to 15 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 ■ Low power consumption ❐ 300 A active current at 1 MHz ❐ 10 A (typ) standby current at +85 C ■ Voltage operation: VDD = 4.5 V to 5.5 V ■ Automotive-E temperature: –40 C to +125 C ■ 8-pin small outline integrated circuit (SOIC) package ■ AEC Q100 Grade 1 compliant ■ Restriction of hazardous substances (RoHS) compliant Functional Overview The FM25C160B is a 16-Kbit 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 121 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 FM25C160B 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 FM25C160B is capable of supporting 1013 read/write cycles, or 10 million times more write cycles than EEPROM. These capabilities make the FM25C160B 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 FM25C160B provides substantial benefits to users of serial EEPROM or flash as a hardware drop-in replacement. The FM25C160B uses the high-speed SPI bus, which enhances the high-speed write capability of F-RAM technology. The device specifications are guaranteed over an automotive-e temperature range of –40 C to +125 C. Instruction Decoder Clock Generator Control Logic Write Protect Instruction Register Address Register Counter 2 K x 8 F-RAM Array 11 Data I/O Register 8 Nonvolatile Status Register 3 WP CS HOLD SCK SO SI Logic Block Diagram |
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