External Connection Example - Epson RX-8025SA Applications Manual

RX - 8025 SA NB
/

8.9. External Connection Example

V
DD
Note : Pull-up resistor connections.
• SCL and SDA
Connect to the system-power-supply .
• / INTA and / INTB
When , uses these interrupt signals at battery backup, connect these pins to backup power supply.
Note : Use a secondary cell or lithium cell. A diode is not required when using a secondary cell.
When using a lithium cell, be sure to use a diode. Contact the battery manufacturer for
details regarding applied resistance values.
D 1 4.7 µF
Note
Schottky
+
Barrier
Diode
OPEN
Page - 27
RX - 8025
V
DD
TEST
SCL
0.1 µF
SDA
/ INTA
/ INTB
FOE
FOUT
GND
ETM10E-04