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STK14CA8 参数 Datasheet PDF下载

STK14CA8图片预览
型号: STK14CA8
PDF下载: 下载PDF文件 查看货源
内容描述: 128Kx8自动存储的nvSRAM [128Kx8 Autostore nvSRAM]
分类和应用: 存储静态存储器
文件页数/大小: 19 页 / 595 K
品牌: SIMTEK [ SIMTEK CORPORATION ]
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STK14CA8  
PACKAGES  
VCAP  
A16  
A14  
1
2
VCC  
A15  
HSB  
48  
47  
VCAP  
A16  
A14  
1
2
3
4
5
6
VCC  
A15  
32  
31  
3
4
5
6
HSB  
W
A13  
A8  
30  
29  
28  
27  
46  
45  
44  
43  
42  
41  
40  
39  
38  
37  
36  
35  
34  
33  
A12  
A7  
A6  
A12  
A7  
A6  
A5  
W
A13  
A8  
A5  
A4  
A3  
A2  
A1  
A9  
7
8
9
10  
11  
12  
13  
14  
15  
16  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
7
8
9
10  
11  
12  
13  
14  
15  
16  
A9  
A11  
G
A10  
E
DQ7  
A4  
A11  
A0  
DQ0  
DQ1  
DQ2  
VSS  
DQ6  
DQ5  
DQ4  
DQ3  
VSS  
VSS  
DQ0  
A3  
A2  
A1  
A0  
DQ6  
G
A10  
E
DQ7  
DQ5  
DQ4  
DQ3  
VCC  
32 Pin SOIC  
17  
18  
32  
31  
30  
29  
28  
27  
26  
25  
19  
20  
21  
22  
23  
24  
DQ1  
DQ2  
Relative PCB area usage.  
48 Pin SSOP  
See website for detailed package  
size specifications.  
PIN DESCRIPTIONS  
Pin Name  
I/O  
Description  
A
-A  
Input  
I/O  
Address: The 17 address inputs select one of 131,072 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  
16  
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: 3.0V, +20%, -10%  
CC  
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  
Autostore Capacitor: Supplies power to nvSRAM during power loss to store data from  
SRAM to nonvolatile storage elements.  
CAP  
Power Supply  
No Connect  
Ground  
SS  
(Blank)  
Unlabeled pins have no internal connections.  
Rev 1.5  
Document Control #ML0022  
February 2007  
2