DS1746-70IND 查看數據表（PDF） - Maxim Integrated
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DS1746-70IND Datasheet PDF : 16 Pages
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DS1746/DS1746P Y2K-Compliant, Nonvolatile Timekeeping RAMs
POWER-UP/DOWN CHARACTERISTICS—3.3V
(VCC = 3.3V ±10%, TA = Over the Operating Range.)
PARAMETER
SYMBOL MIN TYP
CE or WE at VH, Before
Power-Down
VCC Fall Time: VPF(MAX) to
VPF(MIN)
VCC Rise Time: VPF(MIN) to
VPF(MAX)
VPF to RST High
Expected Data-Retention Time
(Oscillator ON)
tPD
0
tF
300
tR
0
tREC
tDR
10
MAX
35
UNITS
µs
NOTES
µs
µs
ms
years
5, 6
POWER-UP/DOWN WAVEFORM TIMING (3.3V DEVICE)
CAPACITANCE
(TA = +25°C)
PARAMETER
Capacitance on All Input Pins
Capacitance on All Output Pins
SYMBOL
CIN
CO
MIN
TYP
MAX
14
10
UNITS
pF
pF
NOTES
14 of 16
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