Renesas R8C/Tiny Series Manuál stáhnout pdf (Strana 122)

R8C/10 Group

Rev.1.20 Jan 27, 2006 page 112 of 180

REJ09B0019-0120

14.6 Inflow Current Bypass Circuit

14.6 Inflow Current Bypass Circuit

Figure 14.9 shows the configuration of the inflow current bypass circuit, figure 14.10 shows the ex-

ample of an inflow current bypass circuit where VCC or more is applied.

Figure 14.9 Configuration of the Inflow Current Bypass Circuit

To the internal logic

of the A/D Converter

OFF

ON

Unselected channel

Fixed to GND level

OFF

ON

OFF

Selected channel

External input

latched into

ON

Figure 14.10 Example of an Inflow Current Bypass Circuit where VCC or More is Applied

To the internal logic

of the A/D Converter

OFF

ON

Unselected channel

Leakage current

generated

Unaffected

by leakage

Leakage current

generated

OFF

ON

OFF

Selected channel

Sensor input

V

CC

or more

ON

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