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参数资料
| 型号： | M37481M8-XXXFP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP44 |
| 封装： | 10 X 10 MM, 0.80 MM PITCH, PLASTIC, QFP-44 |
| 文件页数： | 43/100页 |
| 文件大小： | 1457K |
| 代理商： | M37481M8-XXXFP |
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MITSUBISHI MICROCOMPUTERS
7480/7481 GROUP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
44
PRELIMINAR
Y
Notice:
This
is not
a final
specification.
Some
parametric
limits
are
subject
to change.
Reset Circuit
The microcomputer is put into a reset status by holding the
_____
RESET pin at the “L” level for 2
s or more when the power source
voltage is 2.7 to 5.5 V and XIN 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
contents of address FFFF16 as high-order address and the con-
tents of address FFFE16 as low-order address.
Note that the reset input voltage should be 0.32 V or less when
the power source voltage passes 2.7 V.
Fig. 47 Reset circuit diagram
Fig. 48 Reset sequence
RESET
VCC
RESET
VCC
Power source
voltage
0V
Reset input
voltage
0V
0.12VCC
Power ON
(Note)
Note : Reset release voltage VCC = 2.7 V
Power source
voltage
detecting circuit
?
??
?
FFFE16
FFFF16
ADH,L
??
?
ADL
ADH
XIN
φ
RESET
Internal reset
Address
Data
SYNC
XIN 2048 clock cycle
Reset address from
the vector table
Notes 1 : The frequency relation between f(X IN) and
is f(XIN)=2f( ).
2 : The mark “?” means that the address is changeable depending
on the previous state.
φφ
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PDF描述 |
|---|---|
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M37481M8-XXXSP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 7470 SERIES |
| M37481MT-088FP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37481MXT | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37481MXT-XXXFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37481MXT-XXXSP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
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