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STK14CA8-RF45ITR 数据表(PDF) 2 Page - Cypress Semiconductor

部件名 STK14CA8-RF45ITR
功能描述  128Kx8 AutoStore nvSRAM
Download  16 Pages
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制造商  CYPRESS [Cypress Semiconductor]
网页  http://www.cypress.com
标志 CYPRESS - Cypress Semiconductor

STK14CA8-RF45ITR 数据表(HTML) 2 Page - Cypress Semiconductor

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STK14CA8
Document Number: 001-51592 Rev. **
Page 2 of 16
Pinouts
Figure 1. 48-Pin SSOP
Figure 2. 32-Pin SOIC
Figure 3. Relative PCB Area Usage[1]
Pin Descriptions
VSS
A14
A12
A7
A6
DQ0
DQ1
VCC
DQ2
A3
A2
A1
VCAP
A13
A8
A9
A11
A10
DQ7
DQ6
VSS
A0
NC
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
NC
NC
NC
23
24
A5
NC
NC
NC
NC
NC
NC
A4
48
47
46
45
VCC
HSB
NC
NC
W
NC
NC
DQ5
DQ3
DQ4
G
E
A16
A15
Note
1. See Package Diagrams on page 15 for detailed package size specifications.
A16
A14
A12
A7
DQ0
DQ1
DQ2
A4
A2
A1
VCAP
A13
A8
A9
A11
A10
DQ7
DQ6
VSS
A0
28
27
26
25
24
23
22
21
20
19
18
17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
A6
A3
A5
32
31
30
29
VCC
HSB
W
DQ5
DQ3
DQ4
G
E
A15
Pin Name
I/O
Description
A16-A0
Input
Address: The 17 address inputs select one of 131,072 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: The active low W allows to write the data on the DQ pins 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. When pulled low
external to the chip, it initiates a nonvolatile STORE operation. A weak pull up resistor keeps this
pin high if not connected. (Connection is optional).
VCAP
Power Supply
AutoStore™ Capacitor: Supplies power to nvSRAM during power loss to store data from SRAM to
nonvolatile storage elements.
VSS
Power Supply
Ground.
NC
No Connect
Unlabeled pins have no internal connections.
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