STK14C88 View Datasheet(PDF) - Cypress Semiconductor
Part Name
Description
Manufacturer
STK14C88 Datasheet PDF : 20 Pages
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STK14C88
AutoStore/Power up RECALL
Symbols
NO.
Standard
Alt.
Parameter
STK14C88
Unit
Min
Max
27 tRESTORE
Power up RECALL Duration
–
28
tSTORE
tHLHZ
STORE Cycle Duration
–
29
tVSBL
Low Voltage Trigger (VSWITCH) to HSB
–
Low
550
s
10
ms
300
ns
30
tDELAY
31 VSWITCH
32 VRESET
tBLQZ
VCC
Time Allowed to Complete SRAM
1
Cycle
Low Voltage Trigger Level
4.0
Low Voltage Reset Level
–
Figure 9. AutoStore/POWER UP RECALL
–
s
s 4.5
V
Design 3.6
V
31
VSWITCH
ew 27
VRESET
d for N AutoStore
nde POWER UP RECALL
e HSB
28
tRESTORE
mm W
Not Reco DQ (DATA OUT)
30
tVSBL
31
tDELAY
29
tSTORE
POWER UP
RECALL
BROWN OUT
NO STORE
(NO SRAM Writes)
BROWN OUT
AutoStore
BROWN OUT
AutoStore
NO RECALL
(VCC DID NOT GO
BELOW VRESET)
NO RECALL
(VCC DID NOT GO
BELOW VRESET)
RECALL WHEN
VCC RETURNS
ABOVE VSWITCH
Notes
15
13, 16
11
13
–
–
Notes
15. tRESTORE starts from the time VCC rises above VSWITCH.
16. HSB is asserted low for 1s when VCAP drops through VSWITCH. If an SRAM write has not taken place since the last nonvolatile cycle, HSB is released and no STORE
takes place.
Document Number: 001-52038 Rev. *C
Page 9 of 20
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