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RX8801 SA / JE
Page - 27 ETM26E-03
8.8. Connection with Typical Microcontroller
Master
V
DD
SCL
SDA
t
r
R =
C
BUS
Pull up Registor
RX-8801
SCL
SDA
GND
V
DD
I
C-BUS
2
( I
2
C Bus )
V
DD
D1: Schottky Barrier
Diode
Note
SDA
SCL
SLAVE ADRS = 0110 010*
Note : It uses the secondary battery or a lithium battery. When using the seconding battery, the diode is not required.
When using the lithium battery, the diode is required.
For detailed value on the resistance, please consult a battery maker.
8.9. When used as a clock source (32 kHz-TCXO)
RX-8801
V
DD
T1
GND
0.1 μF
FOUT
/INT
SCL
SDA
FOE
V
DD
32.768kHz
O E
TEST
T2
V
DD