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STK14EC8-TF45 bảng dữ liệu(PDF) 2 Page - Simtek Corporation

tên linh kiện STK14EC8-TF45
Giải thích chi tiết về linh kiện  512Kx8 Autostore nvSRAM
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nhà sản xuất  SIMTEK [Simtek Corporation]
Trang chủ  http://www.simtek.com
Logo SIMTEK - Simtek Corporation

STK14EC8-TF45 bảng dữ liệu(HTML) 2 Page - Simtek Corporation

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Simtek Confidential
Jan, 2008
Document Control #ML0060 Rev 1.1
STK14EC8
Preliminary
PIN DESCRIPTIONS
Pin Name
I/O
Description
A18-A0
Input
Address: The 19 address inputs select one of 524,288 bytes in the nvSRAM array
DQ7-DQ0
I/O
Data: Bi-directional 8-bit data bus for accessing the nvSRAM
E
Input
Chip Enable: The active low E input selects the device
W
Input
Write Enable Input, Active Low: When selected low, enables data on the IO pins to be written to the address
location latched by the falling edge of CE.
G
Input
Output Enable: The active low G input enables the data output buffers during read cycles. De-asserting G high
causes the DQ pins to tri-state.
VCC
Power Supply
Power: 3.0V, +20%, -10%
HSB
I/O
Hardware Store Busy: When low this output indicates a Store is in progress (also low during power up while
busy). When pulled low external to the chip, it will initiate a nonvolatile STORE operation. A weak pull up resis-
tor keeps this pin high if not connected. (Connection Optional).
VCAP
Power Supply
Autostore Capacitor: Supplies power to the nvSRAM during a power loss to store data from SRAM to nonvol-
atile storage elements.
VSS
Power Supply
Ground
NC
No Connect
This pin is not connected to the die. (Do not connect in design; reserved for future use)
44-Pin TSOP-II
VSS
A0
A1
A2
A3
A4
A5
DQ0
DQ1
VCC
VCAP
DQ2
DQ3
A6
A7
A8
NC
NC
NC
A18
A17
A16
A15
A14
A13
G
DQ7
DQ6
VSS
VCC
DQ5
DQ4
HSB
A12
A11
A9
NC
NC
NC
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
NC
NC
A10
W
E
(TOP)
(See mechanical drawing on page 17)
48-Ball FBGA
NC
G
A0
A1
A2
NC
NC
NC
A3
A4
E
NC
DQ0
NC
A5
A6
NC
DQ4
VSS
DQ1
A17
A7
DQ5
VCC
VCC
DQ2 VCAP
A16
DQ6
VSS
DQ3
NC
A14
A15
NC
DQ7
NC
HSB
A12
A13
W
NC
A18
A8
A9
A10
A11
NC
1
2
3
4
5
6
B
C
D
E
F
G
H
(TOP)
A
(See mechanical drawing on page 18)


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