STK14C88-3 Simtek, STK14C88-3 Datasheet - Page 2

• Manufacturer Part Number: STK14C88-3
• Description: 32Kx8 AutoStore nvSRAM
• Manufacturer: Simtek

STK14C88-3
Document Control #ML0015 Rev 0.6
PIN DESCRIPTIONS
VCAP
A
DQ
E
W
G
V
HSB
V
V
DQ0
DQ1
DQ2
VSS
A14
A12
14
CCX
CAP
SS
Pin Name
NC
A6
A5
A4
A2
A7
A3
A1
A0
7
-A
February 2007
-DQ
0
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Input
I/O
Input
Input
Input
Power Supply
I/O
Power Supply
Power Supply
Portagee
Joe
I/O
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
A13
E
DQ3
A8
A9
A11
G
A10
DQ7
DQ6
DQ5
DQ4
NC
VCCX
HSB
W
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%
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
32-Pin SOIC
32-Pin PDIP
2
Description