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STK14C88-LF25TR 参数 Datasheet PDF下载

STK14C88-LF25TR图片预览
型号: STK14C88-LF25TR
PDF下载: 下载PDF文件 查看货源
内容描述: 32Kx8自动存储的nvSRAM [32Kx8 AutoStore nvSRAM]
分类和应用: 存储静态存储器
文件页数/大小: 19 页 / 399 K
品牌: SIMTEK [ SIMTEK CORPORATION ]
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STK14C88  
PIN CONFIGURATIONS  
1
VCAP  
A14  
A12  
32  
VCCX  
HSB  
W
2
31  
30  
3
4
A7  
A6  
A5  
29  
A13  
A8  
A9  
5
6
28  
27  
A4  
A3  
7
8
26  
A11  
25  
24  
G
NC  
A10  
E
9
NC  
A2  
A1  
A0  
DQ0  
DQ1  
DQ2  
VSS  
10  
23  
22  
11  
12  
21  
20  
DQ7  
13  
DQ6  
DQ5  
14  
15  
19  
18  
17  
DQ4  
DQ3  
32-Pin 450 mil LCC  
16  
32-Pin 300 mil SOIC  
32-Pin 300 mil CDIP  
PIN DESCRIPTIONS  
Pin Name  
-A  
I/O  
Description  
A
Input  
I/O  
Address: The 15 address inputs select one of 32,768 bytes in the nvSRAM array  
Data: Bi-directional 8-bit data bus for accessing the nvSRAM  
Chip Enable: The active low E input selects the device  
14  
0
DQ -DQ  
7
0
E
Input  
Input  
W
Write Enable: The active low W enables data on the DQ pins to be written to the address  
location latched by the falling edge of E  
G
Input  
Output Enable: The active low G input enables the data output buffers during read cycles.  
De-asserting G high caused the DQ pins to tri-state.  
V
Power Supply  
I/O  
Power: 5.0V, ± 10%  
CCX  
HSB  
Hardware Store Busy: When low this output indicates a Store is in progress. When pulled  
low external to the chip, it will initiate a nonvolatile STORE operation. A weak pull up resistor  
keeps this pin high if not connected. (Connection Optional).  
V
V
Power Supply  
Power Supply  
AutoStore Capacitor: Supplies power to nvSRAM during power loss to store data from  
SRAM to nonvolatile storage elements.  
CAP  
Ground  
SS  
Rev 0.3  
Document Control #ML0014  
February, 2007  
2