Epson RX-8801SA/JE - Manual (Page 30)

RX − 8801 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