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參數(shù)資料
| 型號(hào)： | M37531M4T-XXXFP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO36 |
| 封裝： | 0.450 INCH, PLASTIC, SSOP-36 |
| 文件頁(yè)數(shù)： | 63/215頁(yè) |
| 文件大?。?/td> | 1365K |
| 代理商： | M37531M4T-XXXFP |
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7531 Group User’s Manual
3-39
APPENDIX
(4) Serial I/O2 transmit/receive shift completion flag
The transmit/receive shift completion flag of the serial I/O2 control register is set to “1” after completing
transmit/receive shift. In order to set this flag to “0”, write data (dummy data at reception) to the
serial I/O2 register by program.
Bit 7 of the serial I/O2 control register is set to “1” a half cycle (of the shift clock) earlier than
completion of shift operation. Accordingly, when using this bit to confirm shift completion, a half
cycle or more of the shift clock must pass after confirming that this bit is set to “1”, before performing
read/write to the serial I/O2 register.
3.3.3 Notes on A-D converter
(1) Analog input pin
Make the signal source impedance for analog input low, or equip an analog input pin with an external
capacitor of 0.01
F to 1F. Further, be sure to verify the operation of application products on the
user side.
q Reason
An analog input pin includes the capacitor for analog voltage comparison. Accordingly, when
signals from signal source with high impedance are input to an analog input pin, charge and
discharge noise generates. This may cause the A-D conversion precision to be worse.
(2) Clock frequency during A-D conversion
The comparator consists of a capacity coupling, and a charge of the capacity will be lost if the clock
frequency is too low. Thus, make sure the following during an A-D conversion.
f(XIN) is 500 kHz or more
Do not execute the STP instruction
3.3.4 Notes on RESET pin
(1) Connecting capacitor
In case where the RESET signal rise time is long, connect a ceramic capacitor or others across the
RESET pin and the VSS pin. And use a 1000 pF or more capacitor for high frequency use. When
connecting the capacitor, note the following :
Make the length of the wiring which is connected to a capacitor as short as possible.
Be sure to verify the operation of application products on the user side.
q Reason
If the several nanosecond or several ten nanosecond impulse noise enters the RESET pin, it may
cause a microcomputer failure.
3.3 Notes on use
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M37531M4T-XXXGP | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP32 |
| M37531E4V-XXXGP | 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PQFP32 |
| M37531E8SP | 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDIP32 |
| M37531E8FP | 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDSO36 |
| M37531E4T-XXXGP | 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PQFP32 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M37531RSS | 制造商:Mitsubishi Electric 功能描述: |
| M37531T-ADS | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Temporary Target Board |
| M37532E8FP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37532M4 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37532M4-A17GP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
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