DS1390 Datasheet, PDF (6/24 Pages) Maxim Integrated Products – Low-Voltage SPI/3-Wire RTCs with Trickle Charger

Low-Voltage SPI/3-Wire RTCs with
Trickle Charger
CE
t_CC
t_R
t_F
SCLK
t_CDH
t_CL
t_CH
t_CDZ
t_DC
t_CDD
I/O
A0
A1
R/W
D0
D7
WRITE ADDRESS BYTE
Figure 3. Timing Diagram—3-Wire Read Transfer
READ DATA BYTE
CE
SCLK
t_DC
I/O
t_CC
t_CDH
A0
t_R
t_CL
t_CH
A1
t_F
R/W
WRITE ADDRESS BYTE
Figure 4. Timing Diagram—3-Wire Write Transfer
t_CWH
t_CCH
D0
D7
WRITE DATA BYTE
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