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UPD72012GB-004 Datasheet(PDF) 7 Page - NEC |
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UPD72012GB-004 Datasheet(HTML) 7 Page - NEC |
7 / 36 page Data Sheet S13918EJ3V0DS 7 µPD72012 1. PIN FUNCTIONS 1.1 List of Pin Functions (1/3) Pin No. Note Pin Name I/O Signal Name Function 1(6) RST I RESET Inputs reset signals. 2(7) UD0 I/O Data0 Connects to upstream port #0 D+ signal line. Pull up to 3.3 V line using 1.5 k Ω. 3(8) UD1 I/O Data1 Connects to upstream port #0 D– signal line. 4(9) D10 I/O Data0 Connects to downstream port #1 D+ signal line. Pull down to GND using 15 k Ω. 5(10) D11 I/O Data1 Connects to downstream port #1 D– signal line. Pull down to GND using 15 k Ω. 6(11) DGND - DGND Connect to GND. 7(12) D20 I/O Data0 Connects to downstream port #2 D+ signal line. Pull down to GND using 15 k Ω. 8(13) D21 I/O Data1 Connects to downstream port #2 D– signal line. Pull down to GND using 15 k Ω. 9(14) D30 I/O Data0 Connects to downstream port #3 D+ signal line. Pull down to GND using 15 k Ω. 10(15) D31 I/O Data1 Connects to downstream port #3 D– signal line. Pull down to GND using 15 k Ω. 11(16, 17) DGND - DGND Connect to GND. This pin is used as both pins 16 and 17 internally in the QFP product. 12(18) D40 I/O Data0 Connects to downstream port #4 D+ signal line. Pull down to GND using 15 k Ω. 13(19) D41 I/O Data1 Connects to downstream port #4 D– signal line. Pull down to GND using 15 k Ω. 14(20) D50 I/O Data0 Connects to downstream port #5 D+ signal line. Pull down to GND using 15 k Ω. 15(21) D51 I/O Data1 Connects to downstream port #5 D– signal line. Pull down to GND using 15 k Ω. 16(22) DGND - DGND (TS3) Test pin of µPD72012 (corresponds to TS3 pin in µPD72011). Connect to GND. 17(23) OSL O OSC CTL Pin that outputs high level on suspend. Can be used by LED switch or to turn oscillator ON/OFF on suspend. CAUTION For self-power, always input an oscillator output signal. If the clock is cut-off, subsequent operation my not be possible. Note QFP pin numbers are shown in ( ). |
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