
6
Maxim Integrated
Low-Current SPI/3-Wire RTCs
DS1343/DS1344
3-Wire Write Timing
3-Wire Read Timing
CE
tCC
tCL
tCDH
tCH
tDC
tF
tR
tCCH
tCWH
D0
D7
A0
A1
WRITE DATA BYTE
WRITE ADDRESS BYTE
*I/O IS SDI AND SDO CONNECTED TOGETHER.
SERMODE = GND.
R/W = 1
SCLK
I/O*
CE
tCC
tCL
tCDH
tCH
tDC
tCDD
tCDZ
tCWH
D0
D7
A0
A1
READ DATA BYTE
WRITE ADDRESS BYTE
*I/O IS SDI AND SDO CONNECTED TOGETHER.
SERMODE = GND.
R/W = 0
SCLK
I/O*