DS1338 Datasheet, PDF (5/16 Pages) Maxim Integrated Products – I2C RTC with 56-Byte NV RAM

Figure 2. Timing Diagram
DS1338 I²C RTC with 56-Byte NV RAM
Figure 3. Block Diagram
X1
X2
"C" VERSION ONLY
V _CC
GND
V _BAT
SCL
SDA
C_L
C_L
POWER
CONTROL
1Hz/4.096kHz/8.192kHz/32.768kHz
1Hz
OSCILLATOR
AND DIVIDER
CONTROL
LOGIC
SERIAL BUS
INTERFACE
AND ADDRESS
REGISTER
Dallas
Semiconductor
DS1338
MUX/
BUFFER
RAM
(56 X 8)
CLOCK,
CALENDAR,
AND CONTROL
REGISTERS
USER BUFFER
(7 BYTES)
SQW/OUT
5 of 16