D12674RVFQ33D Renesas Electronics America, D12674RVFQ33D Datasheet - Page 813

• Manufacturer Part Number: D12674RVFQ33D
• Description: MCU 3V 0K I-TEMP 144-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2600r

Specifications of D12674RVFQ33D

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 33MHz
• Connectivity: IrDA, SCI
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 103
• Program Memory Type: ROMless
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 12x10b; D/A 4x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Other names: HD6412674RVFQ33D; HD6412674RVFQ33D

16.7.6
A protection circuit connected to prevent damage due to an abnormal voltage such as an excessive
surge at the analog input pins (AN0 to AN7 and AN12 to AN15) should be connected between
AVcc and AVss as shown in figure 16.7. Also, the bypass capacitors connected to AVcc and the
filter capacitor connected to AN0 to AN7 and AN12 to AN15 must be connected to AVss.
If a filter capacitor is connected, the input currents at the analog input pins (AN0 to AN7 and
AN12 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
when deciding the circuit constants.
Notes:
in
), an error will arise in the analog input pin voltage. Careful consideration is therefore required
*
1
Notes on Noise Countermeasures
Values are reference values.
1.
2. R
*
1
10 µF
in
: Input impedance
Figure 16.7 Example of Analog Input Protection Circuit
R
in
*
2
0.01 µF
100Ω
0.1 µF
AV
Vref
AN0 to AN7, AN12 to AN15
AV
Rev. 3.00 Mar 17, 2006 page 761 of 926
CC
SS
Section 16 A/D Converter
REJ09B0283-0300