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參數(shù)資料
| 型號： | M38203M4-417HPDR |
| 廠商： | Mitsubishi Electric Corporation |
| 元件分類： | DC/DC變換器 |
| 英文描述： | 1 watt dc-dc converters |
| 中文描述： | 1瓦的DC - DC轉換器 |
| 文件頁數(shù)： | 20/66頁 |
| 文件大?。?/td> | 1093K |
| 代理商： | M38203M4-417HPDR |
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20
MITSUBISHI MICROCOMPUTERS
3820 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Key Input Interrupt (Key-on Wake Up)
A key input interrupt request is generated by applying “L” level to
any pin of port P3 that have been set to input mode. In other
words, it is generated when AND of input level goes from “1” to “0”.
An example of using a key input interrupt is shown in Figure 9,
where an interrupt request is generated by pressing one of the
keys consisted as an active-low key matrix which inputs to ports
P2
0
–P2
3
.
Fig. 10 Connection example when using key input interrupt and port P2 block diagram
Port P2
0
latch
Port P2
0
direction register = "0"
Port P2
1
latch
Port P2
1
direction register = "0"
Port P2
2
latch
Port P2
2
direction register = "0"
Port P2
3
latch
Port P2
3
direction register = "0"
Port P2
4
latch
Port P2
4
direction register = "1"
Port P2
5
latch
Port P2
5
direction register = "1"
Port P2
6
latch
Port P2
6
direction register = "1"
Port P2
7
latch
Port P2
7
direction register = "1"
P2
0
input
P2
1
input
P2
2
input
P2
3
input
P2
4
output
P2
5
output
P2
6
output
P2
7
output
PULL register A
Bit 2 = "1"
Port P2
Input reading circuit
Port PXx
"L" level output
8
P-channel transistor for pull-up
8 8
CMOS output buffer
Key input interrupt request
8
8 8
8
8 8
8
8 8
8
8 8
8
8 8
8
8 8
8
8 8
8
8 8
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| M38203M4-419HP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:8-BIT SINGLE-CHIP MICROCOMPUTER |
| M38203M4-424HP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:8-BIT SINGLE-CHIP MICROCOMPUTER |
| M38203M4-427HP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:8-BIT SINGLE-CHIP MICROCOMPUTER |
| M38203M4-XXXFP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38203M4-XXXGP | 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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