參數(shù)資料
型號： μPD789405
廠商： NEC Corp.
英文描述： 8 Bit Single Chip Microcontrollers(8位單片微控制器)
中文描述： 8位單片機微控制器（8位單片微控制器）
文件頁數(shù)： 25/128頁
文件大小： 607K
代理商： ΜPD789405
25
μ
PD789405, 789406, 789407
Table 5-1. Port Functions
Port name
Pin name
Description
Port 0
P00-P03
Input/output port. Each bit of the port can be separately specified as being for input or output.
A port used for input can be connected to an internal pull-up resistor by means of software
specification.
Port 2
P20-P27
Input/output port. Each bit of the port can be separately specified as being for input or output.
A port used for input can be connected to an internal pull-up resistor by means of software
specification.
Port 4
P40-P47
Input/output port. Each bit of the port can be separately specified as being for input or output.
A port used for input can be connected to an internal pull-up resistor by means of software
specification.
Port 5
P50-P53
N-channel open-drain input/output port. Each bit of the port can be separately specified as being
for input or output.
Whether the port itself is to contain a pull-up resistor is specified with a mask option.
Port 6
P60-P66
Input-only port
Port 8
P80-P87
Input/output port. Each bit of the port can be separately specified as being for input or output.
A port used for input can be connected to an internal pull-up resistor by means of software
specification.
Port 9
P90-P93
Input/output port. Each bit of the port can be separately specified as being for input or output.
A port used for input can be connected to an internal pull-up resistor by means of software
specification.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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