Rainbow Electronics DS1393 - Manual (Page 6)

DS1390/DS1391/DS1392/DS1393
Low-Voltage SPI/3-Wire RTCs with
Trickle Charger
6 _____________________________________________________________________
t
DC
t CL
t CH t
CDH
t CC
t CDD
t
CDZ
t R t F
A0 A1 R/W D0 D7
WRITE ADDRESS BYTE READ DATA BYTE
CE
SCLK
I/O
Figure 3. Timing Diagram—3-Wire Read Transfer
I/O
CE
SCLK
t DC
t
CL
t CH t CDH
t CC
t CCH
t CWH
t R t
F
A0 A1 R/W D0 D7
WRITE ADDRESS BYTE WRITE DATA BYTE
Figure 4. Timing Diagram—3-Wire Write Transfer