YLCDRSK2378 Renesas Electronics America, YLCDRSK2378 Datasheet - Page 888

• Manufacturer Part Number: YLCDRSK2378
• Description: KIT DEV EVAL H8S/2378 LCD
• Manufacturer: Renesas Electronics America
• Series: H8®r

Specifications of YLCDRSK2378

• Main Purpose: Displays, LCD Controller
• Embedded: Yes, MCU, 16-Bit
• Utilized Ic / Part: YLCDRSK2378
• Primary Attributes: 5.7" QVGA, Touch Screen
• Secondary Attributes: Source Code on CD, Debugging Requires Emulator Cable E10A USB/JTAG
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Section 17 A/D Converter
If a filter capacitor is connected, the input currents at the analog input pins (AN0 to AN15) are
averaged, and so an error may arise. Also, when A/D conversion is performed frequently, as in
scan mode, if the current charged and discharged by the capacitance of the sample-and-hold circuit
in the A/D converter exceeds the current input via the input impedance (R
the analog input pin voltage. Careful consideration is therefore required when deciding the circuit
constants.
Table 17.6 Analog Pin Specifications
Item
Analog input capacitance
Permissible signal source impedance
Rev.7.00 Mar. 18, 2009 page 820 of 1136
REJ09B0109-0700
Notes:
*
1
Values are reference values.
1.
2. R
*
1
10 µF
in
: Input impedance
Figure 17.7 Example of Analog Input Protection Circuit
R
in
*
2
0.01 µF
100Ω
0.1 µF
Min
—
—
AV
Vref
AN0 to AN15
AV
CC
SS
20
Max
10
in
), an error will arise in
Unit
pF
kΩ