參數(shù)資料
型號(hào): μPD78F0974
廠商: NEC Corp.
元件分類: 8位微控制器
英文描述: 8 Bit Single Chip Microcontrollers
中文描述: 8位單片機(jī)微控制器
文件頁(yè)數(shù): 12/40頁(yè)
文件大?。?/td> 232K
代理商: ΜPD78F0974
12
m
PD78F0974
2.3
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 2-1. For
the input/output circuit configuration of each type, see Figure 2-1.
Table 2-1. Input/Output Circuit Type of Each Pin
P00/INTP0
8-A
Input/output
Independently connected to V
SS
through resistor.
P01/INTP1
P02/INTP2
P03 to P07
P10/ANI0 to P14/ANI4
9
Input
Independently connected to V
DD
or V
SS
through
P20/SM11 to P23/SM14
4
Output
resistor.
P24/SM21 to P27/SM24
P30/SM31 to P33/SM34
P34/SM41 to P37/SM44
P40/TI00 to P42/TI02
8
Input/output
P43/TIO2
P44/TIO3
P50/SCK
P51/SO
5
P52/SI
8
P53/RxD
P54/TxD
5
P60/SGOA/PCL
P61/SGO/SGOF
P81/S19/TPO
17-A
P82/S18 to P87/S13
P90/S12 to P97/S5
S0-S4
17
Output
Leave open.
COM0 to COM3
18
V
LCD
RESET
2
Input
SMV
DD
Connected to V
DD
.
SMV
SS
Connected to V
SS
.
AV
REF
AV
SS
V
PP
Directly connected to V
SS
.
Input/output
Circuit Type
Pin Name
I/O
Recommended Connection When Not Used
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