HD64F2676VFC33 Renesas Electronics America, HD64F2676VFC33 Datasheet - Page 813
HD64F2676VFC33
Manufacturer Part Number
HD64F2676VFC33
Description
IC H8S MCU FLASH 256K 144-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2600r
Specifications of HD64F2676VFC33
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 Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 12x10b; D/A 4x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
144-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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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
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