S-35390A Seiko Instruments, S-35390A Datasheet - Page 4

• Manufacturer Part Number: S-35390A
• Description: 2-Wire Real Time Clock
• Manufacturer: Seiko Instruments

4
XOUT
2-WIRE REAL-TIME CLOCK
S-35390A
VDD
VSS
XIN
Block Diagram
Clock adjustment register
Status register_1
Status register_2
Oscillator
voltage circuit
Power supply
Constant
detector
voltage
Division, timing
generator
Seiko Instruments Inc.
Second Minute
INT1 register_1
INT1 register_2
Figure 4
Shift register
Comparator 1
Comparator 2
Hour
Day of
week
Realtime data register
INT1 controller
INT2 controller
Serial interface
Day
Month
Year
Rev.1.2
INT1
SDA
SCL
INT2
_00