STK14C88-NF35U 데이터 시트보기 (PDF) - Simtek Corporation
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STK14C88-NF35U Datasheet PDF : 15 Pages
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STK14C88-NF35U
PIN CONFIGURATIONS
VCAP
1
A14 2
A12 3
A7 4
A6 5
A5 6
A4 7
A3 8
NC 9
A2 10
A1 11
A0 12
DQ0 13
DQ1 14
DQ2 15
VSS 16
(TOP)
32 VCC
31 HSB
30 W
29 A13
28 A8
27 A9
26 A11
25 G
24 NC
23 A10
22 E
21 DQ7
20 DQ6
19 DQ5
18 DQ4
17 DQ3
32-Pin 300 mil SOIC
PIN DESCRIPTIONS
Pin Name
A14-A0
DQ7-DQ0
E
W
G
VCC
HSB
VCAP
VSS
I/O
Input
I/O
Input
Input
Input
Power Supply
I/O
Power Supply
Power Supply
Description
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: 5.0V, +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
Document Control #ML0066 Rev 2.0
2
Feb, 2008
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