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參數(shù)資料
| 型號： | LC651304A |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | 4-Bit Single-Chip Microcontroller for Small-Scale Control Applications |
| 中文描述： | 4位單片機的小規(guī)?？刂浦械膽?yīng)用 |
| 文件頁數(shù)： | 20/21頁 |
| 文件大?。?/td> | 697K |
| 代理商： | LC651304A |
LC651306A/04A/02A/01A
No.6727-20/21
Other note on all oscillator circuit:
Place the lines for signals that can easily change suddenly, high amplitude signals connected to the higher capacity voltage
(+15 V) ports, and powerful current supplies as far as possible from the oscillation circuit, and do not cross these lines
with lines that have relevance to the clock.
3. RES: Reset Pin
The length of line (Lres) between the RES pin and the external circuit should be as short as possible.
The length of lines (L1 and L2) between the RES pin and the capacitor (Cres), and the VSS and the capacitor should
be as short as possible.
4. TEST: Test Pin
The length of line (L) between the VSS and the TEST pin should be as short as possible.
The TEST pin and the VSS pin should be connected as close as possible to the VSS pin.
5. AD0 to AD7: Analog Input Pins
The connection for the analog input pins, such as A/D converter input pins and comparator input pin, should meet the
following conditions.
The length of the line (L1) between the damping resistor (R1) and each analog pin should be as short as possible.
The capacitor added between each analog pin and AV- pin (base voltage input pin for A/D converter) should be located
as close as possible to the AV- input pin.
6. I/O Pins
All I/O pins on these microcontrollers have both input and output function.
When used as an input pin, add a damping resistor and keep the length of the line to that pin as short as possible.
[Supplement]
In addition to the above techniques in designing a circuit board, the following options and programming methods are also
effective in preventing defects (such as malfunction or a runaway program) in the microcontroller.
If signals are input from external sources when the microcontroller power supply is unstable, select the higher capacity
voltage (N-channel open drain) output type for the input pin, and add a damping resistor close to the pin.
Cres
VSS
Lres
L1
L2
External
Circuit
Figure 3.
RES
Pin Patterns
RES
VSS
Figure 4. Test Pin Patterns
L
TEST
Analog
Input Pins
A
A
AV-
External circuit
(sensor block)
Figure 5. Analog Input Pins Patterns
Rl
VSS
C
L
相關(guān)PDF資料 |
PDF描述 |
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| LC651306A | 4-Bit Single-Chip Microcontroller for Small-Scale Control Applications(用于小規(guī)模控制應(yīng)用的單片4位微控制器) |
| LC6513A | SINGLE-CHIP 4-BIT MICROCOMPUTER FOR CONTROL-ORIENTED APPLICATIONS(LOW-THRESHOLD INPUT, ON-CHIP FLT DRIVER) |
| LC651431F | Four-Bit CMOS Microcontrollers for Small-Scale Control Applications |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LC651306A | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:4-Bit Single-Chip CMOS Microcontroller for Small-Scale Control Applications |
| LC6513A | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:SINGLE-CHIP 4-BIT MICROCOMPUTER FOR CONTROL-ORIENTED APPLICATIONS(LOW-THRESHOLD INPUT, ON-CHIP FLT DRIVER) |
| LC651431F | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Four-Bit CMOS Microcontrollers for Small-Scale Control Applications |
| LC651431L | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Four-Bit CMOS Microcontrollers for Small-Scale Control Applications |
| LC651431N | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Four-Bit CMOS Microcontrollers for Small-Scale Control Applications |
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