AUSTIN SEMICONDUCTOR, INC.
ADVANCE INFORMATION
nvSRAM
AS8nvLC512K32
Austin Semiconductor, Inc.
Software Controlled STORE/RECALL Cycle
In the following table, the software controlled STORE and RECALL cycle parameters are listed.
24, 25
20ꢀns
25ꢀns
Max
45ꢀns
Parameters
tRC
Description
STORE/RECALLꢀInitiationꢀCycleꢀTime
AddressꢀSetupꢀTime
Min
Max
Min
25
0
Min
45
0
Max
Unit
ns
20
0
tSA
ns
tCW
ClockꢀPulseꢀWidth
15
0
25
0
30
0
ns
tHA
AddressꢀHoldꢀTime
ns
tRECALL
RECALLꢀDuration
200
200
200
μs
Switching Waveforms
CE\ and OE \Controlled Software STORE/RECALL Cycle25
W5&
W5&
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$GGUHVVꢀꢍꢇ
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$GGUHVVꢀꢍꢊ
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W+$
W+$
W+$
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W+$
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W+++'
W+=&(
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W'(/$<
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W/=+6%
+LJKꢀ,PSHGDQFH
W6725(ꢅW5(&$//
5:,
AutoStore Enable/Disable Cycle
W5&
W5&
$GGUHVV
$GGUHVVꢀꢍꢇ
W&:
$GGUHVVꢀꢍꢊ
W&:
W6$
&(
2(
W+$
W+$
W+$
W6$
W+$
W66
W+=&(
W/=&(
W'(/$<
'4ꢀꢎ'$7$ꢏ
5:,
Notes
24. The software sequence is clocked with CE\ controlled or OE\ controlled reads.
25. The six consecutive addresses must be read in the order listed in the MODE Selection Table. WE\ must be HIGH during all six consecutive cycles.
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
AS8nvLC512K32
Rev. 0.0 08/09
13
AUSTIN [ AUSTIN SEMICONDUCTOR ]
