STK14D88_08 SIMTEK [Simtek Corporation], STK14D88_08 Datasheet - Page 2

• Manufacturer Part Number: STK14D88_08
• Description: 32Kx8 Autostore nvSRAM
• Manufacturer: SIMTEK [Simtek Corporation]

STK14D88
Document Control #ML0033 Rev 2.0
PIN DESCRIPTIONS
A
DQ
E
W
G
V
HSB
V
V
(Blank)
14
CC
CAP
SS
Pin Name
Jan 2008
-A
7
-DQ
0
0
V
DQ
DQ
DQ
NC
NC
NC
NC
V
NC
NC
NC
CAP
NC
NC
A
A
A
A
A
A
A
A
A
A
Input
I/O
Input
Input
Input
Power Supply
I/O
Power Supply
Power Supply
No Connect
SS
14
12
7
6
3
2
1
0
5
4
0
1
2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48 - Pin SSOP
(TOP)
I/O
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
HSB
V
NC
W
A
NC
NC
A
V
A
NC
NC
NC
DQ
DQ
DQ
DQ
DQ
A
V
NC
A
G
E
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
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
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.
Power: 3.3V, +10%, -20%
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).
Autostore Capacitor: Supplies power to nvSRAM during power loss to store data from
SRAM to nonvolatile storage elements.
Ground
Unlabeled pins have no internal connections.
CC
CC
11
10
13
SS
8
9
6
7
5
4
3
2
V
DQ
DQ
DQ
V
CAP
NC
A
A
A
A
A
A
A
A
A
A
Relative PCB area usage.
See page 17 for detailed
package size specifications.
SS
14
12
7
6
3
1
0
5
4
2
0
1
2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Description
32 - Pin SOIC
(TOP)
28
27
26
25
24
23
22
21
20
19
18
17
32
31
30
29
HSB
DQ
DQ
DQ
DQ
DQ
V
W
A
NC
A
A
A
E
A
G
CC
11
10
13
8
9
7
6
5
4
3