DS1742
POWER-UP/POWER-DOWN CHARACTERISTICS (3.3V)
(VCC = 3.3V ±10%, Over the operating range.)
PARAMETER
SYMBOL MIN TYP MAX
CE or WE at VIH, Before Power-
Down
tPD
0
VCC Fall Time: VPF(MAX) to VPF(MIN)
tF
300
VCC Rise Time: VPF(MIN) to VPF(MAX)
tR
0
Power-Up Recovery Time
tREC
35
Expected Data Retention Time
(Oscillator On)
tDR
10
UNITS
s
s
s
ms
years
NOTES
5, 6
POWER-UP/POWER-DOWN WAVEFORM TIMING (3.3V DEVICE)
CAPACITANCE
(TA = +25°C)
PARAMETER
SYMBOL MIN TYP MAX UNITS NOTES
Capacitance on All Input Pins
CIN
7
pF
Capacitance on All Output
CO
Pins
10
pF
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