r5f21368sdfp Renesas Electronics Corporation., r5f21368sdfp Datasheet - Page 579

• Manufacturer Part Number: r5f21368sdfp
• Description: Renesas Mcu R8c Family / R8c/3xt-a Series
• Manufacturer: Renesas Electronics Corporation.

Under development
R8C/36T-A Group
R01UH0240EJ0001 Rev.0.01
Apr 28, 2011
Figure 23.6
Figure 23.7
Note:
Figure 23.6 shows the A/D Open-Circuit Detection Example on AVCC Side (Precharge before Conversion
Selected) (i = 0 to 11). Figure 23.7 shows the A/D Open-Circuit Detection Example on AVSS Side (Discharge
before Conversion Selected) (i = 0 to 11).
1. The conversion result for an open circuit will differ depending on the external circuits. Careful evaluation should be
Note:
performed before using this function.
Open
1. The conversion result for an open circuit will differ depending on the external circuits. Careful evaluation should be
Open
performed before using this function.
Preliminary document
Specifications in this document are tentative and subject to change.
A/D Open-Circuit Detection Example on AVCC Side (Precharge before Conversion
Selected) (i = 0 to 11)
A/D Open-Circuit Detection Example on AVSS Side (Discharge before Conversion
Selected) (i = 0 to 11)
External circuit example
External circuit example
R
R
C
C
(1)
(1)
Analog input
Analog input
ANi
ANi
ADDDAEN
ADDDAEN
Precharge
Discharge
Chopper amp
capacitor
Chopper amp
OFF
ON
ON
OFF
capacitor
control signal
control signal
Precharge
Discharge
control signal
control signal
Precharge
Discharge
23. A/D Converter
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