PD64A_15 Datasheet, PDF (10/66 Pages) Renesas Technology Corp – 4-BIT SINGLE-CHIP MICROCONTROLLERS FOR INFRARED REMOTE CONTROL TRANSMISSION

µPD64A, 65
1.3 Recommended Connection of Unused Pins
The following connections are recommended for unused pins.
Table 1-1. Recommended Connection of Unused Pins
KI/O
REM
S1/LED
S0
S2
KI
Pin
Input mode
Output mode
Connection
Inside Microcontroller
Outside Microcontroller
—
Leave open
High-level output
—
Output mode (LED) setting
OFF mode setting
Directly connect to GND
—
—
Caution The I/O mode and the pin output level are recommended to be fixed by setting them
repeatedly in each loop of the program.
8
Data Sheet U14380EJ3V0DS00