參數(shù)資料
型號: μPD72043F
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位單片機微控制器
文件頁數(shù): 13/72頁
文件大小: 547K
代理商: ΜPD72043F
m
PD78042F, 78043F, 78044F, 78045F
13
3.3 PIN I/O CIRCUITS AND PROCESSING OF UNUSED PINS
Table 3-1 shows the I/O circuit type of each pin and the processing of unused pins.
For the configuration of the I/O circuit of each type, refer to Fig. 3-1.
Table 3-1 I/O Circuit Type
Pin name
I/O Circuit type
I/O
Recommended connections when unused
P00/INTP0/TI0
2
Input
Connected to V
SS
.
P01/INTP1
8-A
I/O
Individually connected to V
SS
with a resistor.
P02/INTP2
P03/INTP3/CI0
P04/XT1
16
Input
Connected to V
DD
or V
SS
.
P10/ANI0-P17/ANI7
11
I/O
Individually connected to V
DD
or V
SS
with a resistor.
P20/SI1
8-A
P21/SO1
5-A
P22/SCK1
8-A
P23/STB
5-A
P24/BUSY
8-A
P25/SI0/SB0
10-A
P26/SO0/SB1
P27/SCK0
P30/TO0
5-C
P31/TO1
P32/TO2
P33/TI1
8-B
P34/TI2
P35/PCL
5-C
P36/BUZ
P37
P70-P74
13-B
P80/FIP0, P81/FIP1
14-A
Output
Open
P90/FIP2-P97/FIP9
P100/FIP10-P107/FIP17
P110/FIP18-P117/FIP25
15-C
I/O
Individually connected to V
DD
or V
SS
with a resistor.
P120/FIP26-P127/FIP33
RESET
2
Input
XT2
16
Open
AV
REF
Connected to V
SS
.
AV
DD
Connected to V
DD
.
AV
SS
Connected to V
SS
.
V
LOAD
IC
Connected directly to V
SS
.
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