DS1375 Datasheet, PDF (4/13 Pages) Dallas Semiconductor – 2-Wire Digital Input RTC with Alarm

I²C Digital Input RTC with Alarm
SDA
t_BUF
t_LOW
SCL
t_HD:STA
STOP START
t_R
t_F
t_HD:DAT
t_HIGH
t_SU:DAT
Figure 1. Data Transfer on I²C Serial Bus
t_HD:STA
t_SU:STA
REPEATED
START
t_SP
t_SU:STO
CLK
DIVIDER
DS1375
SCL
SERIAL BUS
INTERFACE AND
ADDRESS
SDA
REGISTER
8192Hz/4096Hz/1024Hz/1Hz
1Hz
CONTROL
LOGIC
SRAM
MUX/
BUFFER
SQW/INT
ALARM AND
CONTROL
REGISTERS
CLOCK AND
CALENDAR
REGISTERS
USER BUFFER
(7 BYTES)
Figure 2. Functional Diagram
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