Rainbow Electronics DS1386 - Manual (Page 15)

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.