s-35392a Seiko Instruments Inc., s-35392a Datasheet - Page 4

• Manufacturer Part Number: s-35392a
• Description: 2-wire Real-time Clock
• Manufacturer: Seiko Instruments Inc.

4
2-WIRE REAL-TIME CLOCK
S-35392A
XOUT
Block Diagram
VDD
VSS
XIN
Clock correction register
Oscillator
Status register 1
Status register 2
Low power supply
Free register
voltage detector
voltage circuit
Constant-
Power-on
detector
timing generator
Divider,
Seiko Instruments Inc.
Second
Figure 5
Shift register
INT1 register
INT2 register
Minute Hour
Comparator 1
Comparator 2
the week
Day of
Real-time data register
Day
controller
controller
interface
INT1
INT2
Serial
Month
Year
Rev.1.3
32KO
INT2
SDA
SCL
_00