參數(shù)資料
型號: UPD780018AY
廠商: NEC Corp.
元件分類: 8位微控制器
英文描述: 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
中文描述: 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存
文件頁數(shù): 12/58頁
文件大?。?/td> 552K
代理商: UPD780018AY
12
μ
PD78044H, 78045H, 78046H
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, see Fig. 3-1.
Table 3-1 I/O Circuit Type
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
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
5-A
P24
8-A
P25
10-A
P26
P27
P30/TO0
13-B
P31/TO1
P32/TO2
P33
22-A
P34
P35/PCL
13-B
P36/BUZ
P37
P70-P74
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.
Pin
I/O circuit type
I/O
Recommended connections when unused
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