DS1347_13 Datasheet, PDF (6/17 Pages) Maxim Integrated Products – Low-Current, SPI-Compatible Real-Time Clock

DS1347
Low-Current, SPI-Compatible
Real-Time Clock
Functional Diagram
X1
X2
V_CC
GND
SCLK
DIN
DOUT
CS
OSCILLATOR
32.768kHz
DIVIDER
1Hz
DS1347
CONTROL
LOGIC
INPUT SHIFT
REGISTERS
ADDRESS
REGISTER
31x 8
RAM
ALARM OUT
ALARM
CONTROL
LOGIC
SECONDS
MINUTES
HOURS
DATE
MONTH
DAY
YEAR
CONTROL
CENTURY
ALARM
CONFIG
STATUS
ALARM
THRESHOLDS
CLOCK
BURST
RAM
BURST
6
Maxim Integrated