S-35192A Datasheet, PDF (4/41 Pages) Seiko Instruments Inc – 3-WIRE REAL-TIME CLOCK

3-WIRE REAL-TIME CLOCK
S-35192A
„ Block Diagram
Rev.1.2_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} Day Month Year
the week
Comparator 2
INT register 2
Shift register
INT
controller 2
Serial
interface
Figure 6
32KO
SIO
SCK
CS
4
Seiko Instruments Inc.