參數(shù)資料
型號(hào): μPD780031
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): 14/44頁(yè)
文件大小: 238K
代理商: ΜPD780031
14
m
PD780031, 780032, 780033, 780034
3.3 Pin I/O Circuits and Recommended Connection of Unused Pins
The input/output circuit type of each pin and recommended connection of unused pins are shown in Table 3-1.
For the input/output circuit configuration of each type, see Figure 3-1.
Table 3-1. Input/Output Circuit Type of Each Pin
Pin Name
Input/output
Circuit Type
I/O
Recommended Connection when not Used
P00/INTP0
8-C
Input
Connect to V
SS0
via a resistor individually.
P01/INTP1
P02/INTP2
P03/INTP3
P10/ANI0 to P17/ANI7
25
Input
Connect to V
DD0
or V
SS0
via a resistor individually.
P20/SI30
8-C
Input/output
P21/SO30
5-H
P22/SCK30
8-C
P23/RxD0
P24/TxD0
5-H
P25/ASCK0
8-C
P30, P31
13-Q
Input/output
Connect to V
DD0
via a resistor individually.
P32, P33
13-S
P34/SI31
8-C
Connect to V
DD0
or V
SS0
via a resistor individually.
P35/SO31
5-H
P36/SCK31
8-C
P40/AD0 to P47/AD7
5-H
Input/output
Connect to V
DD0
via a resistor individually.
P50/A8 to P57/A15
Connect to V
DD0
or V
SS0
via a resistor individually.
P64/RD
P65/WR
P66/WAIT
P67/ASTB
P70/TI00/TO0
8-C
P71/TI01
P72/TI50/TO50
P73/TI51/TO51
P74/PCL
5-H
P75/BUZ
RESET
2
Input
XT1
16
Connect to V
DD0
.
XT2
Open
AV
DD
Connect to V
DD0
.
AV
REF
Connect directly to V
SS0
.
AV
SS
IC
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