R8C/1A Group, R8C/1B Group
17. A/D Converter
Rev.1.30
Dec 08, 2006
Page 242 of 315
REJ09B0252-0130
17.6
Inflow Current Bypass Circuit
Figure 17.9 shows the Configuration of Inflow Current Bypass Circuit and Figure 17.10 shows an Example of
Inflow Current Bypass Circuit where VCC or More is Applied.
Figure 17.9
Configuration of Inflow Current Bypass Circuit
Figure 17.10
Example of Inflow Current Bypass Circuit where VCC or More is Applied
To the internal logic
of the A/D Converter
Unselected
channel
Fixed to GND level
Selected
channel
External input
latched into
OFF
OFF
OFF
ON
ON
ON
To the internal logic
of the A/D Converter
Unselected
channel
Leakage current
generated
Unaffected
by leakage
Leakage current
generated
Selected
channel
Sensor input
OFF
OFF
ON
ON
ON
OFF
VCC or more
