DS1820 Ver la hoja de datos (PDF) - Dallas Semiconductor -> Maxim Integrated

Número de pieza

componentes Descripción

Fabricante

DS1820

1–Wire™ Digital Thermometer

Dallas Semiconductor -> Maxim Integrated 

MEMORY FUNCTIONS FLOW CHART Figure 10

MASTER TX MEMORY

OR CONTROL COMMAND

4Eh

WRITE

N

SCRATCHPAD

?

Y

DS1820 SETS ADDRESS

COUNTER TO 2

MASTER TX DATA BYTE

TO SCRATCHPAD

MASTER

Y

TX RESET

?

N

ADDRESS

Y

=3

?

N

DS1820 INCREMENTS

ADDRESS

N

MASTER

TX RESET

?

Y

DS1820

BEh

READ

N

SCRATCHPAD

?

Y

DS1820 SETS ADDRESS

COUNTER TO 0

MASTER RX DATA

FROM SCRATCHPAD

MASTER

Y

TX RESET

?

N

ADDRESS

Y

=7

?

N

DS1820 INCREMENTS

ADDRESS

MASTER RX 8–BIT

CRC OF DATA

MASTER

Y

TX RESET

?

N

MASTER RX “1s”

DS1820 TX

PRESENCE PULSE

030598 13/27

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