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參數(shù)資料
| 型號(hào)： | M3826AMFLXXXFP |
| 元件分類(lèi)： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP100 |
| 封裝： | 14 X 20 MM, 0.65 MM PITCH, PLASTIC, QFP-100 |
| 文件頁(yè)數(shù)： | 49/82頁(yè) |
| 文件大?。?/td> | 1377K |
| 代理商： | M3826AMFLXXXFP |
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SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
3826 Group
50
Fig. 52 Example of reset circuit
RESET CIRCUIT
To reset the microcomputer, RESET pin should be held at an “L”
level for 2 s or more. Then the RESET pin is returned to an “H”
level (the power source voltage should be between VCC(min.) and
5.5 V, and the quartz-crystal oscillator should be stable), reset is
released. After the reset is completed, the program starts from the
address contained in address FFFD16 (high-order byte) and ad-
dress FFFC16 (low-order byte). Make sure that the reset input
voltage is less than 0.2 VCC for VCC of VCC (min.).
Fig. 53 Reset Sequence
ADL
FFFC
FFFD
ADH,
?
XIN : about 8200
clock cycles
Notes 1 : XIN and
φ are in the relationship : f(XIN) = 8f(φ)
2 : A question mark (?) indicates an undefined status that depends on the previous status.
Reset address from
vector table
RESET
Internal reset
Address
Data
SYNC
φ
XIN
ADH
ADL
Power on
Power
source
voltage
Reset input
voltage
Power source voltage
detection circuit
0.2 VCC
0V
VCC
RESET
VCC
RESET
Note: Reset release voltage VCC = VCC (min.)
(Note)
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