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| 型號(hào)： | M37643F8HP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, FLASH, 12 MHz, MICROCONTROLLER, PQFP80 |
| 封裝： | 12 X 12 MM, 0.50 MM PITCH, PLASTIC, LQFP-80 |
| 文件頁(yè)數(shù)： | 75/120頁(yè) |
| 文件大?。?/td> | 1253K |
| 代理商： | M37643F8HP |
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58
7643 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
PRELIMINAR
Y
Notice:
This
is not
a final
specification.
Some
parametric
limits
are
subject
to
change.
RESET CIRCUIT
To reset the microcomputer, RESET pin should be held at an “L”
level for 20 cycles or more of
φ. Then the RESET pin is returned to
an “H” level, and reset is released. They must be performed when
the power source voltages are between 3.00 V and 3.60 V or 4.15
V and 5.25 V.
After the reset is completed, the program starts from the address
contained in address FFFA16 (high-order byte) and address
FFFB16 (low-order byte).
After oscillation has restarted, the timers 1 and 2 secures waiting
time for the internal clock
φ oscillation stabilized automatically by
setting the timer 1 to “FF16” and timer 2 to “0116”. The internal
clock
φ retains “H” level until Timer 2’s underflow and it cannot be
supplied until the underflow.
The pins state during reset are follows:
When CNVss = “H”
Ports P0, P1, P33 to P37
: Outputting
Pins other than above mentioned ports
: Inputting
When CNVss = “L”
All pins
: Inputting.
Fig. 54 Reset sequence
Fig. 53 Reset circuit example
(Note)
0.2VCC
0V
Poweron
VCC
RESET
VCC
RESET
Power source
voltage detection
circuit
Power source
voltage
Reset input
voltage
Note : Reset release voltage ; Vcc = 3.00 or 4.15 V
RESET
Internal
reset
Data
φ
Address
SYNC
XIN: 512 clock cycles
?
FFFA
FFFB
ADH,L
?
ADL
ADH
Reset address from
the vector table.
Notes: The question marks (?) indicate an undefined state that depends on the previous state.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M37643F8M8-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37643M8E8-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37643M8M8-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M3764A-12 | 制造商:OK International 功能描述: |
| M3765 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:HORN/SIREN WITH SOFT CHIRP 6 ALARM SOUNDS |
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