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STK14C88 Datasheet(PDF) 2 Page - Simtek Corporation

Part No. STK14C88
Description  32Kx8 AutoStore nvSRAM
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Maker  SIMTEK [Simtek Corporation]
Homepage  http://www.simtek.com
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STK14C88 Datasheet(HTML) 2 Page - Simtek Corporation

 
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2
February, 2007
Document Control #ML0014 Rev 0.3
STK14C88
PIN CONFIGURATIONS
PIN DESCRIPTIONS
Pin Name
I/O
Description
A14-A0
Input
Address: The 15 address inputs select one of 32,768 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 enables data on the DQ pins to be written 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 caused the DQ pins to tri-state.
VCCX
Power Supply
Power: 5.0V, ± 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 will initiate a nonvolatile STORE operation. A weak pull up resistor
keeps this pin high if not connected. (Connection 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
VCAP
A14
A12
A7
A6
A5
A4
A3
NC
A2
A1
A0
DQ0
DQ1
DQ2
VSS
VCCX
HSB
A13
A8
A9
A11
G
NC
A10
E
DQ7
DQ6
DQ5
DQ4
DQ3
W
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
32-Pin 300 mil SOIC
32-Pin 300 mil CDIP
32-Pin 450 mil LCC


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