參數(shù)資料
型號(hào): μPD789026
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(jī)微控制器(8位單片微控制器)
文件頁(yè)數(shù): 12/52頁(yè)
文件大?。?/td> 275K
代理商: ΜPD789026
12
μ
PD789022, 789024, 789025, 789026
3.3
Pin Input/Output Circuits and Connection of Unused Pins
Types of input/output circuits and recommended connection of unused pins are shown in Table 3-1.
For the configuration of each type of input/output circuit, see
Figure 3-1
.
Table 3-1. Type of Input/Output Circuit of Each Pin
Pin name
I/O circuit type
I/O
Recommended connection for unused pins
P00-P07
5-P
I/O
Independently connect to V
DD
or V
SS
via resistor.
P10-P17
P20/ASCK/
SCK0
8-E
P21/TxD/SO0
5-P
P22/RxD/SI0
8-E
P30/INTP0
Independently connect to V
SS
via resistor.
P31/INTP1
P32/INTP2/CPT2
P40/KR0-P47/KR7
Independently connect to V
DD
or V
SS
via resistor.
P50/TI0/TO0
Independently connect to V
SS
via resistor.
P51/TO2
5-P
P52, P53
Independently connect to V
DD
or V
SS
via resistor.
RESET
2
Input
-
NC
-
-
Connect directly to V
SS
.
IC
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