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參數資料
| 型號： | M37532 |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | Single Chip 8 Bits CMOS Microcomputer(8位單片機) |
| 中文描述： | 單芯片的CMOS 8位單片機（8位單片機） |
| 文件頁數： | 33/50頁 |
| 文件大小： | 524K |
| 代理商： | M37532 |
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SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
7532 Group
MITSUBISHI MICROCOMPUTERS
33
Reset Circuit
The microcomputer is put into a reset status by holding the RESET
pin at the
“
L
”
level for 15
μ
s or more when the power source voltage
is 4.1 to 5.5 V and X
IN
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 FFFD
16
as high-order address and the contents of
address FFFC
16
as low-order address.
Note that the reset input voltage should be 0.82 V or less when the
power source voltage passes 4.1 V.
Fig. 39 Example of reset circuit
Fig. 40 Timing diagram at reset
(Note)
0.2 V
CC
0 V
0 V
Poweron
V
CC
RESET
V
CC
RESET
Power source
voltage
detection circuit
Power source
voltage
Reset input
voltage
Note :
Reset release voltage Vcc = 4.1 V
Data
Address
8-13 clock cycles
Reset address from the
vector table
1 :
A built-in ring oscillator applies about 250 kHz frequency as clock
φ
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
RESET
RESET
OUT
SYNC
FFFC
FFFD
AD
H
,AD
L
AD
L
AD
H
Clock from built-in
ring oscillator
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| M37532E8FP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
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