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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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UPD62AMC Fiches technique(PDF) 53 Page - NEC |
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UPD62AMC Fiches technique(HTML) 53 Page - NEC |
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53 / 62 page  53 µPD62A Data Sheet U14474EJ1V0DS00 13. APPLICATION CIRCUIT EXAMPLE Example of Application to System • Remote-control transmitter (40 keys; mode selection switch accommodated) • Remote-control transmitter (48 keys accommodated) Remark When the POC circuit of the mask option is used effectively, it is not necessary to connect the capacitor enclosed in the broken lines. KI/O6 KI/O7 S0 S1/LED REM VDD XOUT XIN GND RESET KI/O5 KI/O4 KI/O3 KI/O2 KI/O1 KI/O0 KI3 KI2 KI1 KI0 Key matrix 8 × 5 = 40 keys Mode selection switch + + KI/O6 KI/O7 S0 S1/LED REM VDD XOUT XIN GND RESET KI/O5 KI/O4 KI/O3 KI/O2 KI/O1 KI/O0 KI3 KI2 KI1 KI0 Key matrix 8 × 6 = 48 keys + + |
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