Cypress CY14B256K Manual Do Utilizador
CY14B256K
Document Number: 001-06431 Rev. *H
Page 21 of 28
Hardware STORE Cycle
Parameter
Alt.
Parameter
Description
CY14B256K
Unit
Min
Max
t
DELAY
Time Allowed to Complete SRAM Cycle
1
70
μs
t
PHSB
t
HLHX
Hardware STORE Pulse Width
15
ns
Figure 15. Hardware STORE Cycle
Soft Sequence Commands
Parameter
Description
CY14B256K
Unit
Min
Max
t
SS
Soft Sequence Processing Time
70
μs
Figure 16. Soft Sequence Processing
W
+/+;
W
6725(
W
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W
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'$7$9$/,'
+,*+,03('$1&(
+,*+,03('$1&(
+6%,1
'4'$7$287
+6%287
W
3+6%
$GGUHVV
$GGUHVV
$GGUHVV
$GGUHVV
6RIW6HTXHQFH
&RPPDQG
W
66
W
66
&(
$GGUHVV
9
&&
W
6$
W
&:
6RIW6HTXHQFH
&RPPDQG
W
&:
Notes
22. Read and Write cycles in progress before HSB are given this amount of time to complete.
23. This is the amount of time it takes to take action on a soft sequence command. Vcc power must remain HIGH to effectively register command.
24. Commands such as STORE and RECALL lock out IO until operation is complete which further increases this time. See specific command.
23. This is the amount of time it takes to take action on a soft sequence command. Vcc power must remain HIGH to effectively register command.
24. Commands such as STORE and RECALL lock out IO until operation is complete which further increases this time. See specific command.