STK14CA8-N25I ETC [List of Unclassifed Manufacturers], STK14CA8-N25I Datasheet - Page 2

• Manufacturer Part Number: STK14CA8-N25I
• Description: 128K x 8 AutoStoreTM nvSRAM QuantumTrapTM CMOS Nonvolatile Static RAM
• Manufacturer: ETC [List of Unclassifed Manufacturers]

December 2004
STK14CA8
PIN DESCRIPTIONS
Pin Name
DQ
A
(Blank)
HSB
16
V
7
V
V
W
G
E
CAP
– A
–DQ
CC
SS
0
0
V
V
DQ
DQ
DQ
A
A
A
CAP
A
A
A
A
A
A
SS
A
A
14
12
16
4
3
2
1
0
7
6
5
0
1
2
48 Pin SSOP
10
11
13
14
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
12
15
16
17
Power Supply
Power Supply
Power Supply
No Connect
Input
Input
Input
Input
I/O
I/O
I/O
48
47
46
45
44
43
42
41
38
37
35
34
33
40
39
36
30
29
27
26
25
32
31
28
Description
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
Write Enable: The active low W
the falling edge of E .
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.
Power 3.0V +20%, -10%
Hardware Store Busy: When low this output indicates a Hardware Store is in progress. When pulled low external
to the chip it will initiate a nonvolatile STORE operation. A weak internal 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
elements.
Ground
Unlabeled pins have no internal connection.
HSB
W
V
A
A
A
A
V
DQ
V
A
DQ
DQ
DQ
DQ
G
A
E
CC
15
13
8
9
11
SS
CC
10
6
7
5
4
3
PACKAGES
Relative PCB area usage.
See website for detailed
package size specifications.
input selects the device.
enables data on the DQ pins to be written to the address location latched by
2
Document Control #ML0022 rev 1.0
V
DQ
DQ
DQ
V
A
A
A
CAP
A
A
A
A
A
A
A
A
SS
16
14
12
5
4
3
2
1
0
7
6
0
1
2
SOIC or PDIP
1
10
11
12
13
14
15
16
2
3
4
5
6
7
8
9
32 Pin
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
V
A
HSB
W
A
DQ
DQ
DQ
A
A
A
A
DQ
DQ
G
E
CC
15
13
8
9
11
10
7
6
5
4
3