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STK14EC16-BF45TR bảng dữ liệu(PDF) 3 Page - Simtek Corporation

tên linh kiện STK14EC16-BF45TR
Giải thích chi tiết về linh kiện  256Kx16 AutoStore nvSRAM
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nhà sản xuất  SIMTEK [Simtek Corporation]
Trang chủ  http://www.simtek.com
Logo SIMTEK - Simtek Corporation

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STK14EC16
3
Simtek Confidential
Jan, 2008
Document Control #ML0061 Rev 1.1
Preliminary
PIN DESCRIPTIONS
Pin Name
I/O
Description
A17-A0
Input
Address: The 18 address inputs select one of 262,144 words in the nvSRAM array
DQ15-DQ0
I/O
Data: Bi-directional 16-bit data bus for accessing the nvSRAM
E
Input
Chip Enable: The active low E input selects the device
LB
Input
Byte Write Select Input: Controls DQ7-DQ0 (unselected byte will not write or read).
UB
Input
Byte Write Select Input: Controls DQ15-DQ8 (unselected byte will not write or read).
W
Input
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 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 resistor 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 nonvolatile storage ele-
ments.
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
(See full mechanical drawings on pages 18 – 20)
54-Pin TSOP-II
48-Ball FBGA
VSS
A2
A3
A4
A5
DQ0
DQ1
VCC
VCAP
DQ2
DQ3
A6
A7
A8
A1
A17
A16
A15
A14
A13
DQ7
DQ6
VSS
VCC
DQ5
DQ4
A12
A11
A9
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
A0
A10
E
W
DQ8
DQ9
DQ10
DQ11
G
DQ12
DQ13
DQ14
DQ15
UB
LB
VSS
A0
A1
A2
A3
A4
A5
DQ0
DQ1
VCC
VCAP
DQ2
DQ3
A6
A7
A8
NC
NC
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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
NC
A10
E
NC
NC
23
24
25
26
27
W
54
53
52
51
50
49
48
47
46
45
UB
LB
DQ15
DQ14
DQ13
DQ12
DQ11
DQ10
DQ9
DQ8
NC
LB
G
A0
A1
A2
NC
DQ8
UB
A3
A4
E
DQ0
DQ9 DQ10
A5
A6
DQ1 DQ 2
VSS
DQ11
A17
A7
DQ3
VCC
VCC DQ12 VCAP
A16
DQ4
VSS
DQ14 DQ13
A14
A15
DQ5 DQ 6
DQ15 HSB
A12
A13
W
DQ7
NC
A8
A 9
A10
A11
NC
1
2
3
4
5
6
A
B
C
D
E
F
G
H
(TOP)
(TOP)
(TOP)


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