Rainbow-electronics DS1215 Manual de usuario descargar pdf (Pagina 12)

DS1215

032697 12/15

TIMING DIAGRAM: POWER DOWN

t

CE

t

PD

t

CE

t

PF

V

BAT

- 0.2V

V

IH

V

IL

V

IL

V

IH

4.5V

3V

t

F

CEI

CEO

CEO

V

CCI

ROM/RAM = GND

ROM/RAM

= V

CCO

TIMING DIAGRAM: POWER UP

4.5V

V

IH

V

IL

BAT - 0.2V

t

REC

t

PD

V

IL

CEI

CEO

CEO

V

CCI

ROM/RAM = GND

ROM/RAM

= V

CCO

TIMING DIAGRAM: RESET FOR TIME CHIP

t

RST

RST

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