Cypress CY14B256K - Manual (Page 19)

CY14B256K
Document Number: 001-06431 Rev. *H Page 19 of 28
AutoStore or Power Up RECALL
Parameter Description
CY14B256K
Unit
Min Max
t
HRECALL
[17] Power Up RECALL Duration 40 ms
t
STORE
[18, 19] STORE Cycle Duration Commercial 12.5 ms
Industrial 15 ms
V
SWITCH
Low Voltage Trigger Level 2.65 V
t
VCCRISE
VCC Rise Time 150
μs
Figure 12. AutoStore/Power Up RECALL
V
CC
V
SWITCH
t
STORE
t
STORE
t
HRECALL
t
HRECALL
AutoStore
POWER-UP RECALL
Read & Write Inhibited
STORE occurs only
if a SRAM write
has happened No STORE occurs
without atleast one
SRAM write
t
VCCRISE
Notes
17. t
HRECALL
starts from the time V
CC
rises above V
SWITCH
.
18. If an SRAM Write does not taken place since the last nonvolatile cycle, no STORE takes place.
19. Industrial Grade Devices require 15 ms Max.
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