DS1344 Maxim, DS1344 Datasheet - Page 6

• Manufacturer Part Number: DS1344
• Description: The DS1343/DS1344 low-current real-time clocks (RTCs) are timekeeping devices that provide an extremely low standby current, permitting longer life from a backup supply source
• Manufacturer: Maxim

Low-Current SPI/3-Wire RTCs
6
*I/O IS SDI AND SDO CONNECTED TOGETHER.
SERMODE = GND.
*I/O IS SDI AND SDO CONNECTED TOGETHER.
SERMODE = GND.
CE
SCLK
I/O*
CE
SCLK
I/O*
t
t
DC
DC
t
t
CC
CC
A0
A0
t
t
CDH
CDH
WRITE ADDRESS BYTE
WRITE ADDRESS BYTE
t
t
CL
CL
A1
A1
t
t
CH
CH
t
R
R/W = 0
R/W = 1
t
F
t
CDD
D0
D0
WRITE DATA BYTE
READ DATA BYTE
3-Wire Write Timing
3-Wire Read Timing
D7
D7
t
CCH
t
t
CWH
CWH
t
CDZ