Cypress STK14C88-3 - Manual (Page 11)

STK14C88-3
Document Number: 001-50592 Rev. ** Page 11 of 17
AutoStore or Power Up RECALL
Parameter Alt Description
STK14C88-3
Unit
Min Max
t
HRECALL
[15]
t
RESTORE
Power up RECALL Duration 550
μs
t
STORE
[16, 17]
t
HLHZ
STORE Cycle Duration 10 ms
t
VSBL
[16]
Low Voltage Trigger (V
SWITCH
) to HSB low 300 ns
V
RESET
Low Voltage Reset Level 2.4 V
V
SWITCH
Low Voltage Trigger Level 2.7 2.95 V
t
DELAY
[16]
t
BLQZ
Time Allowed to Complete SRAM Cycle 1
μs
Switching Waveforms
Figure 11. AutoStore/Power Up RECALL
WE
Notes
15. t
HRECALL
starts from the time V
CC
rises above V
SWITCH
.
16. CE and OE low and WE high for output behavior.
17. HSB is asserted low for 1us when V
CAP
drops through V
SWITCH
. If an SRAM WRITE has not taken place since the last nonvolatile cycle, HSB will be released and no
store will take place.
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