STK14EC8-BF15 SIMTEK [Simtek Corporation], STK14EC8-BF15 Datasheet - Page 2

• Manufacturer Part Number: STK14EC8-BF15
• Description: 512Kx8 Autostore nvSRAM
• Manufacturer: SIMTEK [Simtek Corporation]

STK14EC8
Document Control #ML0060 Rev 1.1
PIN DESCRIPTIONS
A
DQ
E
W
G
V
HSB
V
V
NC
18
CC
CAP
SS
Pin Name
7
-A
Jan, 2008
-DQ
0
(See mechanical drawing on page 17)
0
DQ
DQ
DQ
DQ
V
V
NC
NC
NC
NC
A
A
A
A
A
W
A
A
A
A
A
CC
SS
E
0
1
2
3
4
5
6
7
8
9
0
1
2
3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
44-Pin TSOP-II
Input
I/O
Input
Input
Input
Power Supply
I/O
Power Supply
Power Supply
No Connect
(TOP)
I/O
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
Address: The 19 address inputs select one of 524,288 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 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.
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 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).
Autostore Capacitor: Supplies power to the nvSRAM during a power loss to store data from SRAM to nonvol-
atile storage elements.
Ground
This pin is not connected to the die. (Do not connect in design; reserved for future use)
HSB
NC
NC
A
V
A
A
A
A
A
A
V
A
A
DQ
DQ
DQ
DQ
NC
V
NC
G
17
16
15
CC
CAP
14
13
12
11
10
18
SS
Simtek Confidential
7
6
5
4
2
(See mechanical drawing on page 18)
DQ
DQ
V
V
NC
NC
NC
A
CC
1
SS
18
Description
0
3
HSB
DQ
DQ
NC
NC
NC
A
G
2
8
1
2
48-Ball FBGA
Preliminary
V
A
A
A
A
A
A
A
3
CAP
17
14
12
0
3
5
9
(TOP)
A
A
A
A
A
A
A
A
4
16
15
13
10
1
4
6
7
DQ
DQ
NC
NC
A
5
A
W
E
11
2
6
5
DQ
DQ
V
V
NC
NC
NC
NC
6
CC
SS
4
7
A
B
C
E
F
G
H
D