Rainbow-electronics DS2778 Manual de usuario descargar pdf (Pagina 41)

DS2775/DS2776/DS2777/DS2778

2-Cell, Stand-Alone, Li+ Fuel-Gauge IC with

Protector and Optional SHA-1 Authentication

______________________________________________________________________________________ 41

RESISTOR PULLUP

BUS MASTER ACTIVE LOW

LINE TYPE LEGEND:

SLAVE ACTIVE LOW

BOTH BUS MASTER AND

SLAVE ACTIVE LOW

SLOT

LOW0

REC

LOW1

> 1μs

SLOT

RDV

30μs15μs

3μs2μs

15μs

2μs

15μs

2μs

1μs

SLOT

PULLUP

WRITE-ZERO SLOT WRITE-ONE SLOT

READ-ZERO SLOT READ-ONE SLOT

GND

PULLUP

GND

MASTER SAMPLE WINDOW MASTER SAMPLE WINDOW

MODE:

STANDARD

MODE:

OVERDRIVE

STANDARD

OVERDRIVE

DEVICE SAMPLE WINDOW

MIN TYP MAX

DEVICE SAMPLE WINDOW

MIN TYP MAX

15μs 30μs15μs

3μs2μs 1μs

15μs

Figure 30. 1-Wire Write and Read Time Slots

1 2 ... 36 37 38 39 40 41 42 43 44 45

DS2775/DS2776/DS2777/DS2778 1

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Rainbow-electronics DS2778 Manual de usuario Pagina 41

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