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STK15C88_08 参数 Datasheet PDF下载

STK15C88_08图片预览
型号: STK15C88_08
PDF下载: 下载PDF文件 查看货源
内容描述: 32Kx8 PowerStore的nvSRAM [32Kx8 PowerStore nvSRAM]
分类和应用: 静态存储器
文件页数/大小: 15 页 / 403 K
品牌: SIMTEK [ SIMTEK CORPORATION ]
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STK15C88
32Kx8 PowerStore nvSRAM
FEATURES
• 25, 45 ns Read Access & R/W Cycle Time
• Unlimited Read/Write Endurance
• Pin compatible with industry standard SRAMs
• Automatic Non-volatile STORE on Power Loss
• Automatic RECALL to SRAM on Power Up
• Non-Volatile STORE or RECALL under
Software Control
• Unlimited RECALL Cycles
• 1 Million Store Cycles
• 100-Year Non-volatile Data Retention
• Single 5V +10% Power Supply
• Commercial and Industrial Temperatures
• 28-pin 300-mil and 330 mil SOIC Packages
(RoHS-Compliant)
DESCRIPTION
The Simtek STK15C88 is a 256Kb fast static RAM
with a non-volatile Quantum Trap storage element
included with each memory cell.
The SRAM provides the fast access & cycle times,
ease of use and unlimited read & write endurance of
a normal SRAM.
Data transfers automatically to the non-volatile stor-
age cells when power loss is detected (the
STORE
operation). On power up, data is automatically
restored to the SRAM (the
RECALL
operation). Both
STORE and RECALL operations are also available
under software control.
PowerStore nvSRAM products depend on the intrin-
sic system capacitance to maintain system power
long enough for an automatic store on power loss. If
the power ramp from 5 volts to 3.6 volts is faster
than 10 ms, consider our 14C88 or 16C88 for more
reliable operation.
The Simtek nvSRAM is the first monolithic non-vola-
tile memory to offer unlimited writes and reads. It is
the highest performance, most reliable non-volatile
memory available.
BLOCK DIAGRAM
QUANTUM TRAP
512 x 512
A
5
A
6
A
7
A
8
A
9
A
11
A
12
A
13
A
14
DQ
0
DQ
1
DQ
2
DQ
3
DQ
4
DQ
5
DQ
6
DQ
7
STORE/
RECALL
CONTROL
ROW DECODER
STORE
STATIC RAM
ARRAY
512 X 512
RECALL
SOFTWARE
DETECT
A
13
– A
0
INPUT BUFFERS
COLUMN I/O
COLUMN DEC
A
0
A
1
A
2
A
3
A
4
A
10
G
E
W
This product conforms to specifications per the
terms of Simtek standard warranty. The product
has completed Simtek internal qualification testing
and has reached production status.
1
Document Control #ML0016 Rev 2.0
Jan, 2008