参数资料
型号: μPD784225Y
厂商: NEC Corp.
英文描述: 16 Bit Single Chip Microcontrollers(16 位单片微控制器)
中文描述: 16位单片机微控制器(16位单片微控制器)
文件页数: 15/68页
文件大小: 278K
代理商: ΜPD784225Y
15
μ
PD784224Y, 784225Y
5.3 I/O Circuit Type of Respective Pins and Recommended Connections of Unused Pins
Table 5-1 shows symbols indicating the I/O circuit types of the respective pins and the recommended connection
of unused pins.
For the circuit diagram of each type of I/O circuit, refer to
Figure 5-1
.
Table 5-1. I/O Circuit Type of Respective Pins and Recommended Connections of Unused Pins (1/2)
Pin Name
I/O Circuit Type
I/O
Recommended Connections of Unused Pins
P00/INTP0
8-C
I/O
Input : Individually connected to V
SS0
via resistor
Output: Open
P01/INTP1
P02/INTP2/NMI
P03/INTP3-P05/INTP5
P10/ANI0-P17/ANI7
9
Input
Connected to V
SS0
or V
DD0
P20/RxD1/SI1
10-B
I/O
Input : Individually connected to V
SS0
via resistor
Output: Open
P21/TxD1/SO1
P22/ASCK1/SCK1
P23/PCL
P24/BUZ
P25/SDA0/SI0
P26/SO0
P27/SCL0/SCK0
P30/TO0-P32/TO2
8-C
P33/TI1, P34/TI2
P35/TI00, P36/TI01
P37/EXA
P40/AD0-P47/AD7
5-H
P50/A8-P57/A15
P60/A16-P63/A19
P64/RD
P65/WR
P66/WAIT
P67/ASTB
P70/RxD2/SI2
8-C
P71/TxD2/SO2
P72/ASCK2/SCK2
P120/RTP0-P127/RTP7
P130/ANO0, P131/ANO1
12-C
RESET
2
Input
XT1
16
Connected to V
SS0
XT2
Open
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