DS1746/DS1746P
POWER−UP/DOWN AC CHARACTERISTICS
(Over the Operating Range; VCC = 5.0V ± 10%)
PARAMETER
SYMBOL MIN TYP MAX UNITS NOTES
CE or WE at VH
tPD
0
µs
Before Power-down
VCC Fall Time: VPF(MAX) to
tF
300
µs
VPF(MIN)
VCC Fall Time: VPF(MIN) to VSO
tFB
10
µs
VCC Rise Time: VPF(MIN) to
tR
0
µs
VPF(MAX)
Power-up Recover Time
tREC
35
ms
Expected Data Retention Time
(Oscillator ON)
tDR
10
years
5,6
POWER–UP/POWER–DOWN TIMING 5 VOLT DEVICE
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