R4F24568NVFQV Renesas Electronics America, R4F24568NVFQV Datasheet - Page 1119

• Manufacturer Part Number: R4F24568NVFQV
• Description: MCU 128KKB FLASH 48K 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of R4F24568NVFQV

• Core Processor: H8S/2600
• Core Size: 16/32-Bit
• Speed: 32MHz
• Connectivity: EBI/EMI, I²C, IrDA, SCI, SSU, UART/USART, USB
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 96
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

H8S/2456, H8S/2456R, H8S/2454 Group
18.7.8
A protection circuit connected to prevent damage due to an abnormal voltage such as an excessive
surge at the analog input pins (AN0 to AN15*) should be connected between AVcc and AVss as
shown in figure 18.12. Also, the bypass capacitors connected to AVcc and the filter capacitor
connected to the AN0 to AN11 pins must be connected to AVss.
If a filter capacitor is connected, the input currents at the AN0 to AN15* pins 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
input pin voltage. Careful consideration is therefore required when deciding the circuit constants.
Note: * In the H8S/2454 group, only AN0 to AN7, AN11, and AN12 are available as analog
Table 18.9 Analog Pin Specifications
REJ09B0467-0350 Rev. 3.50
Jul 07, 2010
Item
Analog input capacitance
Permissible signal source impedance
Notes on Noise Countermeasures
input pins.
Notes:
*
1
Figure 18.12 Example of Analog Input Protection Circuit
Values are reference values.
1.
2. R
3. The H8S/2454 Group has only AN0 to AN7, AN11, and AN12 as analog input pins.
*
1
10 µF
in
: Input impedance
R
in
*
2
0.01 µF
100 Ω
0.1 µF
⎯
⎯
Min.
AV
Vref
AN0 to AN15*
AV
CC
SS
in
), an error will arise in the analog
Max.
15
5
3
Section 18 A/D Converter
Unit
pF
kΩ
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