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DS1744P Datasheet(PDF) 13 Page - Dallas Semiconductor

Part # DS1744P
Description  Y2K-Compliant, Nonvolatile Timekeeping RAMs
PDF  18 Pages
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Manufacturer  DALLAS [Dallas Semiconductor]
Direct Link  https://www.maximintegrated.com/en.html
Logo DALLAS - Dallas Semiconductor

DS1744P Datasheet(HTML) 13 Page - Dallas Semiconductor

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DS1744/DS1744P Y2K-Compliant, Nonvolatile Timekeeping RAMs
13 of 18
POWER-UP/DOWN CHARACTERISTICS (3.3V)
(VCC = 3.3V
±10%, TA = Over the operating range.)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS NOTES
CE or WE at VIH, Before Power-
Down
tPD
0
ms
VCC Fall Time: VPF(MAX) to VPF(MIN)
tF
300
ms
VCC Rise Time: VPF(MIN) to VPF(MAX)
tR
0
ms
VPF to RST High
tREC
35
ms
Expected Data-Retention Time
(Oscillator ON)
tDR
10
years
5, 6
POWER-UP/DOWN WAVEFORM TIMING (3.3V DEVICE)
CAPACITANCE
(TA = +25°C)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Capacitance On All Input Pins
CIN
14
pF
Capacitance On All Output Pins
CO
10
pF



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