DS1742W-150(2008) 查看數據表（PDF） - Maxim Integrated

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DS1742W-150
(Rev.:2008)

Y2KC Nonvolatile Timekeeping RAM

Maxim Integrated 

DS1742

POWER-UP/POWER-DOWN CHARACTERISTICS (5V)

(VCC = 5.0V ±10%, Over the operating range.)

PARAMETER

SYMBOL MIN TYP

CE or WE at VIH, Before Power-Down

tPD

0

VCC Fall Time: VPF(MAX) to VPF(MIN)

VCC Fall Time: VPF(MIN) to VSO

tF

300

tFB

10

VCC Rise Time: VPF(MIN) to VPF(MAX)

tR

0

Power-Up Recover Time

Expected Data Retention Time

(Oscillator On)

tREC

tDR

10

MAX

35

UNITS NOTES

μs

μs

μs

μs

ms

years 5, 6

POWER-UP/POWER-DOWN WAVEFORM TIMING (5V DEVICE)

12 of 16

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