Rainbow-electronics DS2770 Manual do Utilizador descarregar pdf (Página 23)

DS2770

23 of 27

1-WIRE WRITE AND READ TIME SLOTS Figure 19

V

CC

GND

t

S

L

O

T

DQ

t

L

O

W1

t

S

L

O

T

WRITE 0 SLOT WRITE 1 SLOT

t

L

O

W

0

t

RE

C

>1

m

s

DS2770 Sample Window

MIN TYP MAX

15

m

s15

m

s 30

m

s

DS2770 Sample Window

MIN TYP MAX

15

m

s15

m

s 30

m

s

t

S

L

O

T

V

CC

GND

READ 0 SLOT READ 1 SLOT

t

S

L

O

T

t

RE

C

DQ

>1

m

s

t

RDV

Master Sample Window Master Sample Window

t

RDV

LINE TYPE LEGEND:

Bus master active low

DS2770 active low

Resistor pullup

Both bus master and

DS2770 active low

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