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參數(shù)資料
| 型號： | M38276M5MXXXFS |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| 中文描述： | 單芯片8位CMOS微機 |
| 文件頁數(shù)： | 43/70頁 |
| 文件大?。?/td> | 1112K |
| 代理商： | M38276M5MXXXFS |
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43
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
3827 Group
RESET CIRCUIT
To reset the microcomputer, RESET pin should be held at an “L”
level for 2
μ
s or more. Then the RESET pin is returned to an “H”
level (the power source voltage should be between V
CC
(min.) and
5.5 V, and the oscillation should be stable), reset is released. After
the reset is completed, the program starts from the address con-
tained in address FFFD
16
(high-order byte) and address FFFC
16
(low-order byte). Make sure that the reset input voltage is less
than 0.2 V
CC
for V
CC
of V
CC
(min.).
Fig. 48 Reset Circuit Example
Fig. 49 Reset Sequence
(Note)
0.2V
CC
0V
0V
Poweron
V
CC
RESET
V
CC
RESET
Power source
voltage detection
circuit
Power source
voltage
Reset input
voltage
Note
: Reset release voltage ; V
CC
=V
CC
(min.)
RESET
Internal
reset
Address
Data
SYNC
φ
X
IN
FFFC
FFFD
AD
H,
AD
L
AD
L
AD
H
X
IN
: about 8200 cycles
Notes 1:
The frequency relation of f(X
IN
) and f(
φ
) is f(X
IN
) = 8 f(
φ
).
2:
The question marks () indicate an undefined state that
depends on the previous state.
Reset address from
vector table
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