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4-wire serial interface high-stability RTC module
RX –4045 SA
Preliminary
Product number:Q4140455xxxxx00 • Built in frequency adjusted 32.768 kHz crystal unit. • Serial interface which can be controlled by 4 or 3 signal lines. • Dual Alarm and Timer IRQ function are Available. • 32.768 kHz clock frequency output. (FOUT) • Low backup current : 0.48 µA / 3 V ( Typ.) • Wide operating voltage range : 1.7 V to 5.5 V Wide timekeeper voltage range : 1.15 V to 5.5 V • Available as small package.( SOP-14pin )
s Block Diagram
FOUT
32 kHz Output Control
Comparator_W
Alarm_W Register ( Min,Hour,Week ) Voltage Detect
VDD
Comparator_D
Alarm_D Register ( Min,Hour )
OSC
Divider Correc -tion
Div.
RX-4045SA Datasheet
