Rainbow-electronics DS1558Y Bedienungsanleitung PDF herunterladen (Seite 17)

DS1558

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POWER-UP/DOWN CHARACTERISTICS (V

CC

= +3.3V ±10%, T

A

= -40°C to +85°C)

PARAMETER SYMBOL MIN TYP MAX UNITS NOTES

CE or WE at V

IH

,

Before Power-Down

t

PD

0

ms

V

CC

Fall Time: V

PF(MAX)

to V

PF(MIN)

t

F

300

ms

V

CC

Rise Time: V

PF(MIN)

to V

PF(MAX)

t

R

0

ms

V

PF

to RST High

t

REC

40 200 ms

Figure 9. +3.3V POWER-UP/DOWN WAVEFORM TIMING

CAPACITANCE (T

A

= +25°C)

PARAMETER SYMBOL MIN TYP MAX UNITS NOTES

Capacitance On All Input Pins C

IN

7pF 1

Capacitance On IRQ /FT, RST , and

DQ Pins

C

IO

10 pF 1

1 2 ... 12 13 14 15 16 17 18

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