DS1643/DS1643P
POWER-UP/DOWN AC CHARACTERISTICS (0°C to 70°C; VCC = 5.0V ±=10%)
PARAMETER
SYMBOL MIN
TYP
MAX
UNITS NOTES
tPD
0
µs
CE or WE at VIH, CE2 at VIL, Before
Power-down
VCC Fall Time: VPF(MAX) to VPF(MIN)
VCC Fall Time: VPF(MIN) to VBAT
VCC Rise Time: VPF(MIN) to VPF(MAX)
Power-up Recover Time
Expected Data Retention Time
(Oscillator On)
tF
tFB
tR
tREC
tDR
300
10
0
µs
µs
µs
ms
35
10
years
5, 6
POWER-UP/POWER-DOWN TIMING
CAPACITANCE
(tA = 25°C)
PARAMETER
SYMBOL MIN
TYP
MAX
7
10
UNITS NOTES
Capacitance on all pins
Capacitance on all output pins
CIN
CO
pF
pF
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