參數(shù)資料
型號(hào)： UPD6451A
英文描述： UPD6451A Data Sheet | Data Sheet[12/1995]
中文描述： UPD6451A數(shù)據(jù)表|數(shù)據(jù)表[12/1995]
文件頁(yè)數(shù)： 8/68頁(yè)
文件大?。?/td> 301K
代理商： UPD6451A
8
μ
PD63, 63A, 64
1.3 Dealing with Unused Pins
The following connections are recommended for unused pins.
Table 1-1. Connections for Unused Pins
Pin
Connection
Inside the microcontroller
Outside the microcontroller
K
I/O
INPUT mode
—
Leave open
OUTPUT mode
High-level output
REM
—
S
1
/LED
OUTPUT mode (LED) setting
S
0
OFF mode setting
Directly connect these
pins to GND
K
I
—
RESET
Note
Built-in POC circuit
Leave open
Note
If the circuit is an applied one requiring high reliability, be sure to design it in such a manner that the RESET
signal is entered externally.
Caution The I/O mode and the terminal output level are recommended to be fixed by setting them
repeatedly in each loop of the program.
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