
DS1486/DS1486P
13 of 14
POWER-UP/POWER-DOWN TIMING
(TA = 0°C to +70°C)
PARAMETER
SYMBOL
MIN
MAX
UNITS NOTES
CE High to Power-Fail
tPF
0
ns
Recovery at Power-Up
tREC
200
ms
VCC Slew Rate
Power-Down
tF
4.0
VCC 4.5V
300
ms
VCC Slew Rate
Power-Down
tFB
3.0
VCC 4.25V
10
ms
VCC Slew Rate Power-Up
tR
4.5V
VCC 4.0V
0
ms
Expected Data Retention
tDR
10
years
9
POWER-DOWN/POWER-UP TIMING
WARNING:
Under no circumstances are negative undershoots, of any amplitude, allowed when device is in
battery-backup mode.