S-35190A Datasheet, PDF (4/53 Pages) Seiko Instruments Inc – 3-WIRE REAL-TIME CLOCK

3-WIRE REAL-TIME CLOCK
S-35190A
„ Block Diagram
Rev.2.4_00
XIN
XOUT
Oscillator
Divider,
Timing generator
INT register 1
INT controller 1
VDD
VSS
Clock correction register
Status register 1
Status register 2
Free register
Low power supply
voltage detector
Power-on
detector
Constant-voltage
circuit
Comparator 1
Real-time data register
Second Minute
Hour
Day of
the week
Day
Month Year
Comparator 2
INT register 2
Shift register
INT controller 2
Serial
interface
Figure 8
INT
SIO
SCK
CS
4
Seiko Instruments Inc.