參數(shù)資料
型號: μPD784035
廠商: NEC Corp.
英文描述: 8/16 Bit Single Chip Microcontrollers(8/16 位微控制器)
中文描述: 8 / 16位單片機(jī)微控制器(8 / 16位微控制器)
文件頁數(shù): 17/98頁
文件大?。?/td> 650K
代理商: ΜPD784035
17
μ
PD784035, 784036, 784037, 784038
6.3 I/O Circuits for Pins and Handling of Unused Pins
Table 6-1 describes the types of I/O circuits for pins and the handling of unused pins.
Figure 6-1 shows the configuration of these various types of I/O circuits.
Table 6-1. Types of I/O Circuits for Pins and Handling of Unused Pins (1/2)
Pin
I/O circuit type
I/O
Recommended connection method for unused pins
P00-P07
5-H
I/O
Input state : Connect these pins to the V
DD0
pin.
P10/PWM0
Output state: Leave open.
P11/PWM1
P12/ASCK2/SCK2
8-C
P13/RxD2/SI2
5-H
P14/TxD2/SO2
P15-P17
P20/NMI
2
Input
Connect these pins to the V
DD0
or V
SS0
pin.
P21/INTP0
P22/INTP1
2-C
Connect these pins to the V
DD0
pin.
P23/INTP2/CI
P24/INTP3
P25/INTP4/ASCK/SCK1
8-C
I/O
Input state : Connect this pin to the V
DD0
pin.
Output state: Leave open.
P26/INTP5
2-C
Input
Connect these pins to the V
DD0
pin.
P27/SI0
P30/RxD/SI1
5-H
I/O
Input state : Connect these pins to the V
DD0
pin.
P31/TxD/SO1
Output state: Leave open.
P32/SCK0/SCL
10-B
P33/SO0/SDA
P34/TO0-P37/TO3
5-H
P40/AD0-P47/AD7
P50/A8-P57/A15
P60/A16-P63/A19
P64/RD
P65/WR
P66/WAIT/HLDRQ
P67/REFRQ/HLDAK
P70/ANI0-P77/ANI7
20-A
I/O
Input state : Connect this pin to the V
DD0
or V
SS0
pin.
Output state: Leave open.
ANO0, ANO1
12
Output
Leave open.
ASTB/CLKOUT
4-B
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