Warning – Rainbow Electronics DS1386 User Manual
Page 15
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DS1386/1386P
15 of 20
AC ELECTRICAL CHARACTERISTICS POWER-UP/POWER-DOWN TIMING
(0
°C to 70°C)
PARAMETER
SYMBOL
MIN
MAX
UNITS
NOTES
CE
High to Power Fail
t
PF
0
ns
Recovery at Power Up
t
REC
200
ms
V
CC
Slew Rate Power Down
t
F
4.0≤V
CC
≤4.5V
300
µs
V
CC
Slew Rate Power Down
t
FB
3.0≤V
CC
≤4.25V
10
µs
V
CC
Slew Rate Power Up
t
R
4.5V≥V
CC
≥4.0V
0
µs
Expected Data Retention
t
DR
10
years
9
WARNING:
Under no circumstances are negative undershoots, of any amplitude, allowed when device is in battery
backup mode.
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