Datasheet

5Maxim Integrated
Low-Current SPI/3-Wire RTCs
DS1343/DS1344
SPI Write Timing
SPI Read Timing
CE
t
CC
t
CL
t
CDH
t
DC
t
CH
t
F
t
R
t
CCH
t
CWH
t
CDH
D0D7A0A6
WRITE DATA BYTEWRITE ADDRESS BYTE
*SCLK CAN BE EITHER POLARITY. TIMING SHOWN FOR CPOL = 1.
SERMODE = V
CC
.
R/W = 1
SCLK*
SDI
CE
t
CC
t
CL
t
CDH
t
DC
t
CH
t
CDD
t
CWH
t
CDZ
D0D7
A0A6
READ DATA BYTEWRITE ADDRESS BYTE
*SCLK CAN BE EITHER POLARITY. TIMING SHOWN FOR CPOL = 1.
SERMODE = V
CC
.
SCLK*
SDI
SDO
R/W = 0