Datasheet

DS1390–DS1394
Low-Voltage SPI/3-Wire RTCs with
Trickle Charger
7
Maxim Integrated
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