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參數(shù)資料
| 型號： | M37531RSS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, 8 MHz, MICROCONTROLLER, CDIP42 |
| 封裝： | SHRINK, CERAMIC, PIGGY BACK, DIP-42 |
| 文件頁數(shù)： | 21/76頁 |
| 文件大?。?/td> | 1022K |
| 代理商： | M37531RSS |
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SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
7531 Group
MITSUBISHI MICROCOMPUTERS
28
Reset Circuit
______
The microcomputer is put into a reset status by holding the RESET
pin at the “L” level for 2 s or more when the power source voltage is
2.2 to 5.5 V and XIN is in stable oscillation.
______
After that, this reset status is released by returning the RESET pin to
the “H” level. The program starts from the address having the con-
tents of address FFFD16 as high-order address and the contents of
address FFFC16 as low-order address.
In the case of f(
φ) ≤ 4 MHz, the reset input voltage must be 0.8 V or
less when the power source voltage passes 4.0 V.
In the case of f(
φ) ≤ 2 MHz, the reset input voltage must be 0.48 V or
less when the power source voltage passes 2.4 V.
In the case of f(
φ) ≤ 1 MHz, the reset input voltage must be 0.44 V or
less when the power source voltage passes 2.2 V.
Fig. 35 Example of reset circuit
(Note)
0.2 VCC
0 V
Poweron
VCC
RESET
VCC
RESET
Power source
voltage
detection circuit
Power source
voltage
Reset input
voltage
Note : Reset release voltage Vcc = 2.2 V
Fig. 36 Timing diagram at reset
Data
Address
8-13 clock cycles
Reset address from the
vector table
1 : A built-in ring oscillator applies about 250 kHz frequency clock at average of Vcc = 5 V.
2 : The mark “?” means that the address is changeable depending on the previous state.
3 : These are all internal signals except RESET.
Notes
φ
RESET
RESETOUT
SYNC
??
FFFC
FFFD
ADH,ADL
??
?
??
ADL
ADH
??
?
Clock from built-in
ring oscillator
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)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 |
| M37532M4-XXXFP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
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