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參數(shù)資料
| 型號： | M34570EDFP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PDSO36 |
| 封裝： | 0.450 INCH, 0.80 MM PITCH, PLASTIC, SSOP-36 |
| 文件頁數(shù)： | 25/69頁 |
| 文件大?。?/td> | 687K |
| 代理商： | M34570EDFP |
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28
MITSUBISHI MICROCOMPUTERS
4570 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
RESET FUNCTION
____________
System reset is performed by applying “L” level to RESET pin
for 1 machine cycle or more when the following condition is
satisfied;
the value of supply voltage is the minimum value or more of
the recommended operating conditions.
____________
Then when “H” level is applied to RESET pin, software starts
from address 0 in page 0.
VDD
Power-on reset circuit
output voltage
Internal reset signal
Power-on
RESET
pin
WEF
Watchdog timer
output
Internal reset
signal
Reset state
Reset released
This symbol represents a parasitic
diode.
Note:
Applied potential to RESET pin must
be VDD or less.
(Note)
Power-on
reset circuit
Pull-up
transistor
Voltage drop detection circuit
f(XIN)
RESET
f(XIN) is counted
10757 to 10786 times
Software start
(Address 0 in page 0)
Note: The number of clock cycles depends on the internal state of
the microcomputer when reset is performed.
(Note)
“H”
“L”
Fig. 23 Reset release timing
Fig. 24 RESET pin input waveform and reset operation
(1) Power-on reset
Reset can be automatically performed at power on (power-
on reset) by the built-in power-on reset circuit. When the built-
in power-on reset circuit is used, the time for the supply voltage
to reach the minimum operating voltage must be set to 100
s or less. If the rising time exceeds 100 s, connect a
capacitor between the RESET pin and VSS at the shortest
distance, and input “L” level to RESET pin until the value of
supply voltage reaches the minimum operating voltage.
Fig. 25 Power-on reset circuit example
Note: Keep the value of supply voltage the minimum value or more
of the recommended operating conditions.
RESET
Software start
(Address 0 in page 0)
Reset input
1machine cycle or more
=
0.3VDD
f(XIN) is counted
10757 to 10786 times
(Note)
0.85VDD
相關PDF資料 |
PDF描述 |
|---|---|
| M34570M4-XXXFP | 4-BIT, MROM, 2 MHz, MICROCONTROLLER, PDSO36 |
| M34570M8-XXXFP | 4-BIT, MROM, MICROCONTROLLER, PDSO36 |
| M34570EDFP | 4-BIT, OTPROM, MICROCONTROLLER, PDSO36 |
| M34584EDFP | 4-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDSO42 |
| M34584MD-XXXFP | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO42 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| M34570M4 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34570M4-081FP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34570M4-202FP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34570M4-214FP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34570M4-227FP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
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