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4559 Datasheet(PDF) 8 Page - Renesas Technology Corp |
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4559 Datasheet(HTML) 8 Page - Renesas Technology Corp |
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8 / 148 page  Rev.1.04 Aug 23, 2007 Page 8 of 146 REJ03B0188-0104 4559 Group CONNECTIONS OF UNUSED PINS (Note when connecting to VSS or VDD) Connect the unused pins to VSS using the thickest wire at the shortest distance against noise. Table 7 Port function Pin Connection Usage condition XIN Connect to VSS. RC oscillator is not selected XOUT Open. − XCIN/D6 Connect to VSS. − XCOUT/D7 Open. − D0 −D4 Open. − Connect to VSS. N-channel open-drain is selected for the output structure. D5/INT Open. INT pin input is disabled. Connect to VSS. N-channel open-drain is selected for the output structure. P00 /SEG16− P03 /SEG19 Open. The key-on wakeup function is invalid. Connect to VSS. Segment output is not selected. N-channel open-drain is selected for the output structure. Pull-up transistor is OFF. The key-on wakeup function is invalid. P10 /SEG20− P13 /SEG23 Open. The key-on wakeup function is invalid. Connect to VSS. Segment output is not selected. N-channel open-drain is selected for the output structure. Pull-up transistor is OFF. The key-on wakeup function is invalid. P20 /SEG24− P23 /SEG27 Open. The key-on wakeup function is invalid. Connect to VSS. Segment output is not selected. N-channel open-drain is selected for the output structure. Pull-up transistor is OFF. The key-on wakeup function is invalid. P30 /SEG28− P33 /SEG31 Open. The key-on wakeup function is invalid. Connect to VSS. Segment output is not selected. N-channel open-drain is selected for the output structure. Pull-up transistor is OFF. The key-on wakeup function is invalid. C/CNTR Open. CNTR input is not selected for timer 1 count source. COM0–COM3 Open. − SEG0/VLC3 Open. SEG0 pin is selected. SEG1/VLC2 Open. SEG1 pin is selected. SEG2/VLC1 Open. SEG2 pin is selected. SEG3–SEG15 Open. − |
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