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參數(shù)資料
| 型號(hào)： | M34571G6FP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO24 |
| 封裝： | 5.30 X 10.10 MM, 0.80 MM PITCH, PLASTIC, SSOP-24 |
| 文件頁數(shù)： | 84/126頁 |
| 文件大?。?/td> | 1776K |
| 代理商： | M34571G6FP |
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Rev.1.02
May 25, 2007
Page 60 of 124
REJ03B0179-0102
4571 Group
2. Connection of bypass capacitor across VSS line
and VDD line
Connect an approximately 0.1
F bypass capacitor across the
VSS line and the VDD line as follows:
Connect a bypass capacitor across the VSS pin and the VDD pin
at equal length.
Connect a bypass capacitor across the VSS pin and the VDD pin
with the shortest possible wiring.
Use lines with a larger diameter than other signal lines for VSS
line and VDD line.
Connect the power source wiring via a bypass capacitor to the
VSS pin and the VDD pin.
Fig 65. Bypass capacitor across the VSS line and the
VDD line
3. Wiring to analog input pins
Connect an approximately 100
to 1 k resistor to an analog
signal line which is connected to an analog input pin in series.
Besides, connect the resistor to the microcomputer as close as
possible.
Connect an approximately 1000 pF capacitor across the VSS
pin and the analog input pin. Besides, connect the capacitor to
the VSS pin as close as possible. Also, connect the capacitor
across the analog input pin and the Vss pin at equal length.
<Reason>
Signals which is input in an analog input pin (such as an A/D
converter/comparator input pin) are usually output signals from
sensor. The sensor which detects a change of event is installed
far from the printed circuit board with a microcomputer, the
wiring to an analog input pin is longer necessarily. This long
wiring functions as an antenna which feeds noise into the
microcomputer, which causes noise to an analog input pin.
Fig 66. Analog signal line and a resistor and a capacitor
VSS
VDD
VSS
VDD
N.G.
O.K.
Thermistor
Analog
input pin
(Note)
N.G.
O.K.
VSS
Note : The resistor is used for dividing
resistance with a thermistor.
Microcomputer
Noise
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M34571G6-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34571GD | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34571GDFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34571GD-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M3458 | 功能描述:電纜固定件和配件 RLTCG 3/8 NPT BLACK NO NUT RoHS:否 制造商:Heyco 類型:Cable Grips, Liquid Tight 材料:Nylon 顏色:Black 安裝方法:Cable 最大光束直徑:11.4 mm 抗拉強(qiáng)度: |
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