s-35399a02 Seiko Instruments Inc., s-35399a02 Datasheet - Page 44

• Manufacturer Part Number: s-35399a02
• Description: 2-wire Real-time Clock
• Manufacturer: Seiko Instruments Inc.

44
2-WIRE REAL-TIME CLOCK
S-35399A02
Examples of Application Circuits
Caution Start communication under stable condition after power-on the power supply in the system.
Caution
Caution
The above connection diagrams do not guarantee operation. Set the constants after performing
sufficient evaluation using the actual application.
1. Because the I/O pin has no protective diode on the VDD side, the relation of V
2. Start communication under stable condition after power-on the power supply in the system.
VSS
VDD
But pay careful attention to the specifications.
VDDL
XIN
VDD
VSS
VDDL
S-35399A02
C
XIN
g
XOUT
S-35399A02
C
g
XOUT
FOUT
CTRL
F32K
INT1
INT2
SDA
SCL
FOUT
CTRL
F32K
INT1
INT2
SDA
SCL
Figure 58 Application Circuit 1
Figure 59 Application Circuit 2
Seiko Instruments Inc.
10 kΩ
10 kΩ
10 kΩ
10 kΩ
CPU
VCC
VSS
V
C C
VCC
CPU
VSS
System power
supply
CC
System
power supply
≥ V
Rev.1.0
DD
is possible.
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