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MODEML208 VCC C223 0.1U J203 1 2 CON2 PHONE TIP PHONE RING VCC C204 J201 1 2 3 4 CON4 LINE TIP LINE RING PHONE TIP PHONE RING VCC C201 0.1U C202 0.1U C203 10U/16V VD3.3 U201 8 51 13 14 15 16 17 18 19 20 21 34 25 26 27 80 35 38 36 24 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 73 77 VDD VDD ~DSR ~CTS ~RLSD ~DRSOUT ~AAIND ~RI ~TM ~RDL ~DTRIND ~TXD ~DTR ~AL ~RTS ~TMIND ~TXCLK ~RXD ~RXCLK ~STPMODE A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 ~READ ~WRITE ~RAMSEL ~ROMSEL ~DPSEL GND GND L2800-38 CLKOUT VD3.3 NVMDAT NVMCLK ~DPRXD DPIRQ ~WKR ~SCPS RESP NMIP ~TST PSC XTL1 31 11 33 39 37 28 79 78 1 ~RESET 2 VCC 40 7 9 C205 18PF R202 100 RING ~HOOK ~VOICE ~CALLID LCS C206 18PF ~READ 10K 7 6 5 0.1U R201 8 U205 VCC VCC TEST SCL SDA 24C02 ~RD U204 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A1

关键词： MODEM