DS1643 Просмотр технического описания (PDF) - Maxim Integrated

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Компоненты Описание

производитель

DS1643

Nonvolatile Timekeeping RAMs

Maxim Integrated 

DS1643/DS1643P

POWER-UP/DOWN AC CHARACTERISTICS

(VCC = 5.0V 10%, TA = 0C to +70C.)

PARAMETER

SYMBOL MIN

CE or WE at VIH, CE2 at VIL, Before

Power-down

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

VCC Fall Time: VPF(MIN) to VBAT

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

Power-Up Recover Time

Expected Data Retention Time

(Oscillator On)

tPD

0

tF

300

tFB

10

tR

0

tREC

tDR

10

TYP

MAX

35

UNITS NOTES

s

s

s

s

ms

years 5, 6

POWER-UP/POWER-DOWN TIMING

CAPACITANCE

(TA = +25C)

PARAMETER

Capacitance on All Pins

Capacitance on All Output Pins

SYMBOL

CIN

CO

MIN

TYP

MAX

7

10

UNITS

pF

pF

NOTES

11 of 17

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