Rainbow-electronics DS1393 Manual de usuario descargar pdf (Pagina 6)

DS1390/DS1391/DS1392/DS1393

Low-Voltage SPI/3-Wire RTCs with

Trickle Charger

6 _____________________________________________________________________

CDH

CDD

CDZ

A0 A1 R/W

D0 D7

WRITE ADDRESS BYTE

READ DATA BYTE

SCLK

I/O

Figure 3. Timing Diagram—3-Wire Read Transfer

I/O

SCLK

CDH

CCH

CWH

A0 A1 R/W

WRITE ADDRESS BYTE

WRITE DATA BYTE

Figure 4. Timing Diagram—3-Wire Write Transfer

1 2 3 4 5 6 7 8 9 10 11 ... 23 24

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Rainbow-electronics DS1393 Manual de usuario Pagina 6