參數(shù)資料
型號(hào): UPD784908GF
廠商: NEC Corp.
英文描述: 16-BIT SINGLE-CHIP MICROCONTROLLER
中文描述: 16位單片機(jī)
文件頁數(shù): 18/98頁
文件大?。?/td> 657K
代理商: UPD784908GF
μ
PD784907, 784908
18
Data Sheet U11680EJ2V0DS00
6.3 Pin I/O Circuits and Recommended Connections of Unused Pins
The input/output circuit type of each pin and recommended connections of unused pins are shown in Table 6-1.
For each type of input/output circuit, refer to Figure 6-1.
Table 6-1. Types of Pin I/O Circuits and Recommended Connections of Unused Pins (1/2)
Pin Name
I/O Circuit Type
I/O
Recommended Connections of Unused Pins
P00 to P07
5-A
I/O
Input:
Output: Leave open
Connect to V
DD
P10, P11
P12/ASCK2/SCK2
8-A
P13/RxD2/SI2
5-A
P14/TxD2/SO2
P15 to P17
P20/NMI
2
Input
Connect to V
DD
or V
SS
P21/INTP0
P22/INTP1
2-A
Connect to V
DD
P23/INTP2/CI
P24/INTP3
P25/INTP4/ASCK/SCK1
8-A
I/O
Input:
Output: Leave open
Connect to V
DD
P26/INTP5
2-A
Input
Connect to V
DD
P27/SI0
P30/RxD/SI1
5-A
I/O
Input:
Output: Leave open
Connect to V
DD
P31/TxD/SO1
P32/SCK0
10-A
P33/SO0
P34/TO0 to P37/TO3
5-A
P40/AD0 to P47/AD7
P50/A8 to P57/A15
P60/A16 to P63/A19
P64/RD
P65/WR
P66/WAIT/HLDRQ
P67/REFRQ/HLDAK
P70/ANI0 to P77/ANI7
20
I/O
Input:
Output: Leave open
Connect to V
DD
or V
SS
P90 to P97
5-A
P100 to P104
P105/SCK3
10-A
P106/SI3
8-A
P107/SO3
10-A
ASTB/CLKOUT
4
Output
Leave open
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