參數(shù)資料
型號(hào)： M38273E9MXXXGP
廠商： Mitsubishi Electric Corporation
英文描述： Dual Low-Power, Rail-to-Rail Input/Output Operational Amplifier w/Shutdown 14-SOIC -40 to 125
中文描述： 單芯片8位CMOS微機(jī)
文件頁(yè)數(shù)： 20/70頁(yè)
文件大?。?/td> 1112K
代理商： M38273E9MXXXGP
20
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
3827 Group
MITSUBISHI MICROCOMPUTERS
Key Input Interrupt (Key-on wake-up)
A Key-on wake up interrupt request is generated by applying “L”
level to any pin of port P2 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
16, 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. 16 Connection example when using key input interrupt and port P2 block diagram
8
88
8
88
8
88
8
88
8
88
8
88
8
88
8
88
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
direction register = “1”
Port P2
6
latch
Port P2
7
latch
Port P2
7
direction register = “1”
Port P2
0
input
Port P2
1
input
Port P2
2
input
Port P2
3
input
Port P2
4
output
Port P2
5
output
Port P2
6
output
Port P2
7
output
PULLA register
Bit 2 = “1”
Port P2 input
reading circuit
Key input interrupt request
Port PXx
“L” level output
8
88
CMOS output buffer
P-channel transistor for pull-up
Key input control register = “1”
Key input control register = “1”
Key input control register = “1”
Key input control register = “1”
Key input control register = “1”
Key input control register = “1”
Key input control register = “1”
Port P2
6
direction register = “1”
Key input control register = “1”
相關(guān)PDF資料
PDF描述
M38273E9MXXXHP Dual Low-Power, Rail-to-Rail Input/Output Operational Amplifier w/Shutdown 14-SOIC -40 to 125
M38273EA-XXXGP Dual Low-Power, Rail-to-Rail Input/Output Operational Amplifier w/Shutdown 10-MSOP -40 to 125
M38273EA-XXXHP Dual Low-Power, Rail-to-Rail Input/Output Operational Amplifier w/Shutdown 10-MSOP -40 to 125
M38273EAMXXXFP Dual Low-Power, Rail-to-Rail Input/Output Operational Amplifier w/Shutdown 10-MSOP -40 to 125
M38273EAMXXXFS Dual Low-Power, Rail-to-Rail Input/Output Operational Amplifier w/Shutdown 10-MSOP -40 to 125
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