參數(shù)資料
型號(hào)： M37640M4T
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(jī)
文件頁(yè)數(shù)： 13/48頁(yè)
文件大?。?/td> 563K
代理商： M37640M4T
MITSUBISHI MICROCOMPUTERS
7630 Group
13
MITSUBISHI
ELECTRIC
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Port Overvoltage Application
When configured as input ports, P1 to P4 may be subjected to over-
voltage (V
I
> V
CC
) if the input current to the applicable port is limited
to the specified values (see “Table 8:”). Use a serial resistor of
appropriate size to limit the input current. To estimate the resistor
value, assume the port voltage to be V
CC
at overvoltage condition.
Notes:
Subjecting ports to overvoltage may effect the supply voltage.
Assure to keep V
CC
and V
SS
within the target limits.
Avoid to subject ports to overvoltage causing V
CC
to rise above
5.5 V.
The overvoltage condition causing input current flowing through
the internal port protection circuits has a negative effect on the
ports noise immunity. Therefore, careful and intense testing of
the target system’s noise immunity is required. Refer to the
“countermeasures against noise” of the corresponding users
manual.
Port P0 must not be subjected to overvoltage conditions.
相關(guān)PDF資料
PDF描述
M37630 Single Chip 8 Bits CMOS Microcomputer(8位單片機(jī))
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