s-35190a Seiko Instruments Inc., s-35190a Datasheet - Page 4

• Manufacturer Part Number: s-35190a
• Description: 3-wire Real-time Clock
• Manufacturer: Seiko Instruments Inc.

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