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STK15C88 Datasheet(PDF) 6 Page - List of Unclassifed Manufacturers

Part No. STK15C88
Description  32K x 8 AutoStore nvSRAM High Performance CMOS Nonvolatile Static RAM
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STK15C88 Datasheet(HTML) 6 Page - List of Unclassifed Manufacturers

   
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STK15C88
August 1998
5-40
SOFTWARE MODE SELECTION
Note l:
The six consecutive addresses must be in order listed. W must be high during all six consecutive cycles to enable a nonvolatile cycle.
Note m: While there are 15 addresses on the STK15C88, only the lower 14 are used to control software modes.
SOFTWARE CYCLES #1 & #2n,o
(VCC = 5.0V
± 10%)
Note n:
The software sequence is clocked with E controlled reads.
Note o:
The six consecutive addresses must be in the order listed in the SOFTWARE MODE SELECTION Table - (0E38, 31C7, 03E0, 3C1F, 303F,
0FC0) for a STORE cycle or (0E38, 31C7, 03E0, 3C1F, 303F, 0C63) for a RECALL cycle. W must be high during all six consecutive cycles.
SOFTWARE CYCLE: E CONTROLLED
E
WA13 - A0 (hex)
MODE
I/O
NOTES
LH
0E38
31C7
03E0
3C1F
303F
0FC0
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Nonvolatile
STORE
Output data
Output data
Output data
Output data
Output data
Output high Z
l,m
LH
0E38
31C7
03E0
3C1F
303F
0C63
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Nonvolatile
RECALL
Output data
Output data
Output data
Output data
Output data
Output high Z
l,m
NO.
SYMBOLS
PARAMETER
STK15C88-25
STK15C88-35
STK15C88-45
UNITS
#1
MIN
MAX
MIN
MAX
MIN
MAX
27
tAVAV
STORE/RECALL initiation cycle time
25
35
45
ns
28
tELQZ
g,n
End of Sequence to Outputs Inactive
650
650
650
ns
29
tAVEL
n
Address Set-up Time
0
0
0
ns
30
tELEH
n
Clock Pulse Width
20
25
30
ns
31
tELAX
g,n
Address Hold Time
20
20
20
ns
32
tRECALL
Recall Duration
20
20
20
µs
28
32
23
31
30
29
27
27
DATA VALID
DQ(Data Out)
ELQZ
t
RECALL
DATA VALID
t
STORE
t
HIGH IMPEDANCE
ELAX
t
ELEH
AVEL
AVAV
AVAV
t
E
t
t
ADDRESS #1
t
ADDRESS #6
ADDRESS


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