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STK12C68-P45 Datasheet(PDF) 7 Page - List of Unclassifed Manufacturers

Part No. STK12C68-P45
Description  8k x 8 AUTOSTORE NVSRAM QUANTUM TRAP CMOS NONVOLATILE STATIC RAM
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Maker  ETC [List of Unclassifed Manufacturers]
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STK12C68-P45 Datasheet(HTML) 7 Page - List of Unclassifed Manufacturers

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STK12C68
July 1999
4-47
SOFTWARE-CONTROLLED STORE/RECALL CYCLEw
(VCC = 5.0V ± 10%)
b, f
Note v:
The software sequence is clocked with E controlled READs.
Note w: The six consecutive addresses must be in the order listed in the Hardware Mode Selection Table: (0000, 1555, 0AAA, 1FFF, 10F0, 0F0F) for
a STORE cycle or (0000, 1555, 0AAA, 1FFF, 10F0, 0F0E) for a RECALL cycle. W must be high during all six consecutive cycles.
SOFTWARE STORE/RECALL CYCLE: E Controlledw
NO.
SYMBOLS
PARAMETER
STK12C68-20
STK12C68-25
STK12C68-35
STK12C68-45
UNITS NOTES
Standard
Alternate
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
33
tAVAV
tRC
STORE/RECALL Initiation Cycle
Time
20
25
35
45
ns
q
34
tAVEL
tAS
Address Set-up Time
0
0
0
0
ns
v
35
tELEH
tCW
Clock Pulse Width
15202530
ns
v
36
tELAX
Address Hold Time
15
20
20
20
ns
v
37
tRECALL
RECALL Duration
20
20
20
20
µs
DATA VALID
DATA VALID
HIGH IMPEDANCE
ADDRESS #6
ADDRESS #1
33
tAVAV
DQ (DATA OUT)
E
ADDRESS
28
37
tSTORE / tRECALL
33
tAVAV
34
tAVEL
35
tELEH
36
tELAX


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