參數(shù)資料
型號(hào)： FM25040
廠商： Electronic Theatre Controls, Inc.
元件分類： DRAM
英文描述： 4Kb FRAM Serial 3V Memory
中文描述： 4Kb的鐵電串行3V的記憶
文件頁(yè)數(shù)： 1/14頁(yè)
文件大小： 631K
代理商： FM25040
FM25040
4Kb FRAM Serial Memory
This data sheet contains design specifications for product development.
These specifications may change in any manner without notice
11 May 2000
Ramtron International Corporation
1850 Ramtron Drive, Colorado Springs, CO 80921
(800) 545-FRAM, (719) 481-7000, Fax (719) 481-7058
www.ramtron.com
1/14
Features
4K bit Ferroelectric Nonvolatile RAM
Organized as 512 x 8 bits
High endurance 10 Billion (10
10
) read/writes
10 year data retention at 85
°
C
NoDelay write
Advanced high-reliability ferroelectric process
Fast Serial Peripheral Interface - SPI
Up to 2.1 MHz maximum bus frequency
Direct hardware replacement for EEPROM
Supports SPI Mode 0 (CPOL=0, CPHA=0)
Description
The FM25040 is a 4-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 FM25040 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 FM25040 is
capable of supporting up to 1E10 read/write cycles --
far more than most systems will require from a serial
memory.
These capabilities make the FM25040 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 FM25040 provides substantial benefits to users
of serial EEPROM, in a hardware drop-in
replacement. The FM25040 uses the high-speed SPI
bus which enhances the high-speed write capability of
FRAM technology. It is 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 SOP or DIP
Pin Configuration
CS
SO
WP
VSS
VCC
HOLD
SCK
SI
Pin Names
/CS
SO
/WP
VSS
SI
SCK
/HOLD
VCC
Function
Chip Select
Serial Data Output
Write Protect
Ground
Serial Data Input
Serial Clock
Hold
Supply Voltage 5V
Ordering Information
FM25040-P
FM25040-S
8-pin plastic DIP
8-pin SOP
相關(guān)PDF資料
PDF描述
FM25040-P 4Kb FRAM Serial 3V Memory
FM25040-S 4Kb FRAM Serial 3V Memory
FM25160 16Kb FRAM Serial Memory(16Kb串行 FRAM存儲(chǔ)器)
FM25160 16Kb FRAM Serial Memory
FM25160-P 16Kb FRAM Serial Memory
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
FM25040A 制造商:RAMTRON 制造商全稱:RAMTRON 功能描述:4Kb FRAM Serial Memory
FM25040A-G 功能描述:F-RAM 4K (512x8) 5V RoHS:否 存儲(chǔ)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube 制造商:Cypress Semiconductor
FM25040A-GA 功能描述:F-RAM 4K (512x8) 5V Grade 1 RoHS:否 存儲(chǔ)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube 制造商:Cypress Semiconductor
FM25040A-GATR 功能描述:F-RAM 4K (512x8) 5V Grade 1 RoHS:否 存儲(chǔ)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube 制造商:Cypress Semiconductor
FM25040A-GTR 功能描述:F-RAM 4K (512x8) 5V RoHS:否 存儲(chǔ)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube 制造商:Cypress Semiconductor
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