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UPD754144GS Datasheet(PDF) 12 Page - NEC |
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UPD754144GS Datasheet(HTML) 12 Page - NEC |
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12 / 88 page  12 µPD754144, 754244 3.4 Recommended Connection of Unused Pins Table 3-1. List of Recommended Connection of Unused Pins Pin Recommended Connecting Method P30/PTO0 Input state : Independently connect to VSS or VDD via a resistor. P31/PTO1 Output state: Leave open. P32/PTO2 P33 P60/AVREF P61/INT0 P62/PTH00 P63/PTH01 P70/KR4 Connect to VDD. P71/KR5 P72/KR6 P73/KR7 P80 Input state : Independently connect to VSS or VDD via a resistor. Output state: Leave open. KRREN When this pin is connected to VDD, internal reset signal is gener- ated at the falling edge of the KRn pin in the STOP mode. When this pin is connected to VSS, internal reset signal is not generated even if the falling edge of KRn pin is detected in the STOP mode. IC Connect directly to VDD. |
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