DS1746-070 Просмотр технического описания (PDF) - Maxim Integrated

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DS1746-070

Y2K-Compliant, Nonvolatile Timekeeping RAMs

Maxim Integrated 

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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