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參數資料
| 型號： | FM25640-S |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | LOW PROFILE .025 SQ STRIPS |
| 中文描述： | 64Kb的FRAM的串行存儲器 |
| 文件頁數： | 1/14頁 |
| 文件大小： | 131K |
| 代理商： | FM25640-S |
FM25640
64Kb FRAM Serial Memory
Features
This product conforms to specifications per the terms of the Ramtron
standard warranty. Production processing does not necessarily in-
clude testing of all parameters.
Rev. 2.1
Aug. 2003
Ramtron International Corporation
1850 Ramtron Drive, Colorado Springs, CO 80921
(800) 545-FRAM, (719) 481-7000, Fax (719) 481-7058
www.ramtron.com
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64K bit Ferroelectric Nonvolatile RAM
Organized as 8,192 x 8 bits
High Endurance 1 Trillion (10
12
) Read/Writes
10 Year Data Retention
NoDelay Writes
Advanced high-reliability ferroelectric process
Very Fast Serial Peripheral Interface - SPI
Up to 5 MHz maximum bus frequency
Direct hardware replacement for EEPROM
SPI Mode 0 & 3 (CPOL, CPHA=0,0 & 1,1)
Description
The FM25640 is a 64-kilobit nonvolatile memory
employing an advanced ferroelectric process. A
ferroelectric random access memory or FRAM is
nonvolatile but operates in other respects as a RAM.
It provides reliable data retention for 10 years while
eliminating the complexities, overhead, and system
level reliability problems caused by EEPROM and
other nonvolatile memories.
Unlike serial EEPROMs, the FM25640 performs
write operations at bus speed. No write delays are
incurred. Data is written to the memory array mere
hundreds of nanoseconds after it has been
successfully transferred to the device. The next bus
cycle may commence immediately. In addition, the
product offers substantial write endurance compared
with other nonvolatile memories. The FM25640 is
capable of supporting up to 10
12
-read/write cycles --
far more than most systems will require from a serial
memory.
These capabilities make the FM25640 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 EEPROM can cause data loss.
The FM25640 provides substantial benefits to users
of serial EEPROM, in a hardware drop-in
replacement. The FM25640 uses the high-speed SPI
bus, which enhances the high-speed write capability
of FRAM technology. The specifications are
guaranteed over an industrial temperature range of
-40°C to +85°C.
Sophisticated Write Protection Scheme
Hardware Protection
Software Protection
Low Power Consumption
10
μ
A Standby Current
Industry Standard Configuration
Industrial Temperature -40
°
C to +85
°
C
8-pin SOIC
Pin Configuration
Pin Names
/CS
/HOLD
/WP
SCK
SI
SO
VDD
VSS
Function
Chip Select
Hold
Write Protect
Serial Clock
Serial Data Input
Serial Data Output
5V
Ground
Ordering Information
FM25640-S
8-pin SOIC
CS
SO
WP
VSS
VDD
HOLD
SCK
SI
1
2
3
4
8
7
6
5
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相關代理商/技術參數 |
參數描述 |
|---|---|
| FM25640-STR | 功能描述:F-RAM 64K (8Kx8) 5V RoHS:否 存儲容量:512 Kbit 組織:64 K x 8 接口:SPI 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube 制造商:Cypress Semiconductor |
| FM25C020 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:2K-Bit SPI⑩ Interface Serial CMOS EEPROM |
| FM25C020U | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:2K-Bit SPI⑩ Interface Serial CMOS EEPROM |
| FM25C020UE | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:2K-Bit SPI⑩ Interface Serial CMOS EEPROM |
| FM25C020UEM8 | 功能描述:電可擦除可編程只讀存儲器 SOIC-8 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數據保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
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