參數(shù)資料
型號(hào): μPD78F9197Y
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)
文件頁數(shù): 15/150頁
文件大?。?/td> 636K
代理商: ΜPD78F9197Y
Preliminary Product Information
15
μ
PD78F9197Y
4.3
Pin Input/Output Circuits and Handling of Unused Pins
Table 4-1 lists the types of input/output circuits for each pin and explains how unused pins are handled.
Figure 4-1 shows the configuration of each type of input/output circuit.
Table 4-1. Type of Input/Output Circuit for Each Pin and Handling of Unused Pins
Pin name
I/O circuit type
I/O
Recommended connection of unused pins
P00-P05
5-H
I/O
P10, P11
P20/SCK20/ASCK20
8-C
P21/SO20/TxD20
P22/SI20/RxD20
P23/SCL0
13-X
P24/SDA0
P25/TI80/SS20
8-C
P26/TO80
P30/INTP0/TI81/CPT90
P31/INTP1/TO81
P32/INTP2/TO90
P33/INTP3/TO82/BZO90
P50-P53
13-T
P60/ANI0-P67/ANI7
9-C
Input
XT1
Input
Connect this pin to the V
SS0
or V
SS1
pin.
XT2
Leave this pin open.
RESET
2
Input
V
PP
Connect this pin directly to the V
SS0
or V
SS1
pin.
NC
Connect these pins to the V
DD0
, V
DD1
, V
SS0
, or V
SS1
pin via respective
resistors.
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