DS1746-070 Ver la hoja de datos (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 AC CHARACTERISTICS—5V

(VCC = 5.0V ±10%, TA = Over the Operating Range.)

PARAMETER

SYMBOL MIN TYP

CE or WE at VH

Before Power-Down

tPD

0

VCC Fall Time: VPF(MAX) to

VPF(MIN)

tF

300

VCC Fall Time: VPF(MIN) to VSO

tFB

10

VCC Rise Time: VPF(MIN) to

VPF(MAX)

tR

0

Power-Up Recover Time

tREC

Expected Data-Retention Time

(Oscillator ON)

tDR

10

MAX

35

UNITS NOTES

µs

µs

µs

µs

ms

years

5, 6

POWER-UP/DOWN TIMING (5V DEVICE)

13 of 16

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