DS1343 Maxim, DS1343 Datasheet - Page 5

• Manufacturer Part Number: DS1343
• 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

*SCLK CAN BE EITHER POLARITY. TIMING SHOWN FOR CPOL = 1.
SERMODE = V
*SCLK CAN BE EITHER POLARITY. TIMING SHOWN FOR CPOL = 1.
SERMODE = V
CE
SCLK*
SDI
CE
SCLK*
SDI
SDO
CC
CC
.
.
t
t
CC
CC
t
t
DC
DC
R/W = 0
R/W = 1
t
t
CDH
CDH
WRITE ADDRESS BYTE
WRITE ADDRESS BYTE
t
t
CL
CL
A6
A6
Low-Current SPI/3-Wire RTCs
t
t
CH
CH
A0
A0
t
F
t
R
t
CDD
D7
D7
WRITE DATA BYTE
READ DATA BYTE
t
CCH
SPI Write Timing
SPI Read Timing
D0
D0
t
CDH
t
t
CWH
CWH
t
CDZ
5