Rainbow Electronics DS3231 - Manual (Page 8)

DS3231
Extremely Accurate I
2
C-Integrated
RTC/TCXO/Crystal
8 _____________________________________________________________________
Block Diagram
N
N
N
RST
V CC
32kHz
INT/SQW
CLOCK AND CALENDAR
REGISTERS
USER BUFFER
(7 BYTES)
I 2 C INTERFACE AND
ADDRESS REGISTER
DECODE
POWER CONTROL
V CC
V BAT
GND
SCL
SDA
TEMPERATURE
SENSOR
CONTROL LOGIC/
DIVIDER
PUSHBUTTON RESET;
SQUARE-WAVE BUFFER;
INT/SQW CONTROL
CONTROL AND STATUS
REGISTERS
OSCILLATOR AND
CAPACITOR ARRAY
X1
X2
DS3231