s-35399a03 Seiko Instruments Inc., s-35399a03 Datasheet - Page 4

• Manufacturer Part Number: s-35399a03
• Description: 2-wire Real-time Clock
• Manufacturer: Seiko Instruments Inc.

4
2-WIRE REAL-TIME CLOCK
S-35399A03
Block Diagram
XOUT
VDD
XIN
Clock correction
Free register 2
Free register 3
Free register 1
timing generator
Oscillator
up counter
register 1
register 2
register
supply voltage
voltage circuit
binary
Status
Status
24-bit
Divider,
Low power
Constant-
detector
Power-on
detector
Seiko Instruments Inc.
Second Minute Hour Day of
INT2 register
INT1 register
Shift register
Figure 5
Real-time data register
INT1 controller
INT2 controller
Comparator 1
week
Comparator 2
Alarm expansion
Alarm expansion
Day
register 2
register 1
interface
Month Year
Serial
Rev.1.0
INT1
INT2
SDA
SCL
VSS
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