r5f71374an80fpv Renesas Electronics Corporation., r5f71374an80fpv Datasheet - Page 737

• Manufacturer Part Number: r5f71374an80fpv
• Description: 32-bit Risc Microcomputer Superh?? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

17.7
17.7.1
The voltage applied to analog input pin (ANn) during A/D conversion should be in the range
AV
17.7.2
When using the A/D converter, set AVcc = 5.0 V ±0.5 V and AVss = Vss. When the A/D
converter is not used, set AVss = Vss, and do not leave the AVcc pin open.
17.7.3
When using the A/D converter, set AV
AV
For AV
17.7.4
In board design, digital circuitry and analog circuitry should be as mutually isolated as possible,
and the layout in which the digital circuit signal lines and analog circuit signal lines cross or are in
close proximity to each other should be avoided as much as possible. Failure to do so may result in
the incorrect operation of the analog circuitry due to inductance, adversely affecting the A/D
conversion values.
Also, digital circuitry must be isolated from the analog input signals (AN0 to AN15), analog
reference power supply (AV
(AVss). Also, AVss should be connected at one point to a stable digital ground (Vss) on the board.
refl
refh
≤ ANn (n = 0 to 15) ≤ AV
≤ AVcc. If these conditions are not met, the reliability of the LSI may be adversely affected.
refl
, set AV
Usage Notes
Analog Input Voltage Range
Relationship between AVcc, AVss and Vcc, Vss
Range of AV
Notes on Board Design
refl
= AVss = Vss.
refh
and AV
refh
and AV
refh
.
refl
Pin Settings
refh
refl
), the analog power supply (AVcc), and the analog ground
= 4.5 to AVcc. When the A/D converter is not used, set
Rev. 1.00 Sep. 21, 2007 Page 711 of 1124
Section 17 A/D Converter (ADC)
REJ09B0402-0100