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STK16C68
July 1999
4-77
AutoStorePlus™/POWER-UP RECALL
(VCC = 5.0V ± 10%)
b
Note l:
tRESTORE starts from the time VCC rises above VSWITCH.
AutoStorePlus™/POWER-UP RECALL
NO.
SYMBOLS
PARAMETER
STK16C68
UNITS
NOTES
Standard
MIN
MAX
22
tRESTORE
Power-up RECALL Duration
550
µsl
23
tFB
Maximum VCC Slew Time to Ground
500
ns
f, h
24
VSWITCH
Low Voltage Trigger Level
4.0
4.5
V
25
VRESET
Low Voltage Reset Level
3.9
V
f
VCC
VSWITCH
VRESET
OWER-UP RECALL
W
DQ (DATA OUT)
AutoStore™
5V
22
tRESTORE
23
tFB
24
25
BROWN OUT
AutoStorePlus™
NO RECALL
(VCC DID NOT GO
BELOW VRESET)
BROWN OUT
AutoStorePlus™
RECALL WHEN
VCC RETURNS
ABOVE VSWITCH
POWER-UP
RECALL
BROWN OUT
NO STORE DUE TO
NO SRAM WRITES
NO RECALL
(VCC DID NOT GO
BELOW VRESET)