Rainbow-electronics DS1642 Bedienungsanleitung PDF herunterladen (Seite 9)

DS1642

9 of 11

POWER-UP/DOWN AC CHARACTERISTICS (0°C to 70°C)

PARAMETER SYMBOL MIN TYP MAX UNITS NOTES

at V

Before Power-down

0 µs

Fall Time: V

(MAX) to

(Min)

300 µs

Fall Time: V

(MIN) to V

BAT

10 µs

Rise Time: V

(MIN) to

(MAX)

0 µs

Power-up Recover Time

REC

35 ms

Expected Data Retention Time

(Oscillator On)

10 years 4, 5

POWER-UP/DOWN WAVEFORM TIMING

CAPACITANCE (t

= 25°C)

PARAMETER SYMBOL MIN TYP MAX UNITS NOTES

Capacitance on all pins (except DQ) C

7 pF

Capacitance on DQ pins C

10 pF

1 2 3 4 5 6 7 8 9 10 11

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Rainbow-electronics DS1642 Bedienungsanleitung Seite 9