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參數(shù)資料
| 型號： | DS2227-120 |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | Static RAM |
| 英文描述： | 512K X 8 NON-VOLATILE SRAM MODULE, 120 ns, SMA72 |
| 封裝： | STIK, SIP-72 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 191K |
| 代理商： | DS2227-120 |
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FEATURES
Flexibly organized as 128k x 32, 256k x 16,
or 512k x 8 bits
Data retention >10 years in the absence of
VCC
Nonvolatile circuitry transparent to and
independent from host system
Automatic write protection circuitry
safeguards against data loss
Separate chip enables allow access by byte,
word, or long word
Fast access times: 70 ns, 100 ns, or 120 ns
Unlimited write cycles
Read cycle time equals write cycle time
Employs popular JEDEC standard 72-position
SIMM connection scheme
Lithium energy source is electrically
disconnected to retain freshness until power is
applied for the first time
PIN ASSIGNMENT
DESCRIPTION
The DS2227 Flexible NV SRAM Stik is a self-contained 4,194,304-bit nonvolatile static RAM which can
be flexibly organized as 128k x 32 bits, 256k x 16 bits, or 512k x 8 bits. The nonvolatile memory contains
all necessary control circuitry and lithium energy sources to maintain data integrity in the absence of
power for more than 10 years. The DS2227 employs the popular JEDEC standard 72-position SIMM
connection scheme requiring no additional circuitry.
OPERATION
The DS2227 Flexible NV SRAM Stik is used like any standard static RAM. All nonvolatile circuitry is
transparent to the user. The flexibility of the part is achieved by providing separate read, write, and chip
DS2227
Flexible NV SRAM Stik
www.dalsemi.com
72
1
1M
SRA
M
1M
SRA
M
1M
SRA
M
1M
SRA
M
72-Pin SIP STIK
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS2229 | 512K X 16 MULTI DEVICE SRAM MODULE, 85 ns, SMA80 |
| DS2251T | 8-BIT, MICROCONTROLLER, SMA72 |
| DS2290 | SPECIALTY TELECOM CIRCUIT, SMA30 |
| DS2291 | SPECIALTY TELECOM CIRCUIT, SMA30 |
| DS229EN | LINE TRANSCEIVER, PDSO20 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2227-70 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Flexible NV SRAM Stik |
| DS2228-100 | 功能描述:靜態(tài)隨機(jī)存取存儲器 RoHS:否 制造商:Cypress Semiconductor 存儲容量:16 Mbit 組織:1 M x 16 訪問時間:55 ns 電源電壓-最大:3.6 V 電源電壓-最小:2.2 V 最大工作電流:22 uA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSOP-48 封裝:Tray |
| DS2229 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Word-Wide 8 Meg SRAM Stik |
| DS2229-100 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x16 SRAM Module |
| DS2229-120 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x16 SRAM Module |
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