DF2505FC26V Renesas Electronics America, DF2505FC26V Datasheet - Page 579

• Manufacturer Part Number: DF2505FC26V
• Description: IC H8S/2505 MCU FLASH 144QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2500r

Specifications of DF2505FC26V

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 26MHz
• Connectivity: I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 104
• Program Memory Size: 384KB (384K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

in figure 15.10. Also, the bypass capacitors connected to AVcc and the filter capacitor connected
to AN0 to AN15 must be connected to AVss.
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 circuit
constants.
Table 15.6 Analog Pin Specifications
Item
Analog input capacitance
Permissible signal source impedance
Notes:
Figure 15.10 Example of Analog Input Protection Circuit
* 1
Values are reference values.
1.
2 R
* 1
10 µF
in
: Input Impedance
R
in
* 2
0.01 µF
100 Ω
0.1 µF
Min.
⎯
⎯
AVCC
Vref
AN0 to AN15
AVSS
Rev. 6.00 Sep. 24, 2009 Page 531 of 928
Max.
20
5
in
), an error will arise in
Section 15 A/D Converter
kΩ
Unit
pF
REJ09B0099-0600