Yamaha-RXV1900-avr-sch(1) 维修电路原理图.pdf

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1、ABCDEFGHIJ123456784RX-V1900/HTR-6290/DSP-AX1900A/DPCM1804IC560DIRLC89057IC506CDBD/HD DVDDVDCBL/SATMD/CD-RDVRFRONT V-AUXCDDVDDVRDSP1DA70YE101BRFP266IC534DSP2DA70YE1BRFP266IC567IC575IC577FL/FRDAL/DARDSL/DSRDC/DSWPL/PRDSBL/DSBRIC576IC580IC579SL/SRC/SWSBL/RIC566DSP BYPASS RAMIC585DUTY CORRECTORIC504INPU

2、TSELECTIC505REC OUTSELECTIC355INPUT/ZONE3SELECTORBD3841FSIC451INPUT/ZONE3SELECTORBD3841FSPHONOCDTVMD/CD-RVCRDVRCBL/SATDVDBD/HD DVDDVRRECVCRRECMD/CD-RINPUTIC450REC/ZONE2SELECTORBD3841FSHDMICOAXIALOPTICALAUDIO INPUTREC OUTPUTREC OUTPUTAUDIO INPUTDIGITAL INPUTDIGITAL OUTPUTMULTI CH INPUTFRONTSURROUNDSU

3、BWOOFERCENTERIC300IC307E-VOLUMEYAC526X5574A0FL/FRFL/FRIC302Nonmix:0.52dBMix:+4.97dBIC301IC301IC301IC300IC350PHONO EQMULTI CH FRONTDSL/DSRMULTI CH SUR.DC/DSWDSBL/DSBRIC308E-VOLUMEYAC523X4325A0SL/SRC/SWSBL/SBRSW:GAIN:+3.41dBIC304GAIN:+0.58dBIC305C:GAIN:+0.58dBIC306GAIN:+0.58dBIC357E-VOLUMEYAC526X5574A

4、0IC358E-VOLUMEYAC526X5574A0ZONE2 L/RZONE3 L/RIC301SWRCIC309No Mix :+1.28dBMix : +6.9dBMix GAIN:0.45dBIC312GAIN:0dBSL/SRIC312GAIN:+4.62dBSWL/SWRSL/SRIC310GAIN:0dBIC311GAIN:0dBQ3004,3005,Q3012,3013FMTFFMTSQ3006,3007Q3014,3015FMTFQ3008,3009Q3016,3017FM Q3002,3010FMTSWPRE OUTAUXUSBOPTIMIZERMICPHONESFRON

5、TSURROUNDCENTERSURROUNDBACK/PRESENCESBL/SBRZ2MTQ3500,3501Q3504,3505Q3502,3503Q3506,3507Z3MTZONE2 L/RZONE3 L/RBYPASSSURROUND L/RCENTERFRONT L/RSP2ZONE 2 L/RZONE 3 L/RZONE 2 L/RZONE 3 L/RSWPRESENCE L/RPOWERAMP.POWERAMP.POWERAMP.POWERAMP.RELAYDRIVERRY252RY257RY256RY253RY255PL/PRRY254SURROUND BACK L/RSP

6、1, BI-AMPDACDSD1791IC569DACDSD1791IC570DACDSD1791IC571DACDSD1791IC574IC403DACDSD1791IC573IC503XM DT DAL/DARMULTI CH FRONTAD L/RDSP OUTMULTI CH C/SWIC359T-CONTROLNJW1119VIC360NJW1119VIC356REC/ZONE2SELECTORXM L/RBD3841FSDACAK4358IC564IC101Sil9135XMIC507,508,509IC561,563RAMIC587FLASH ROMIC540IC351IC351

7、Q3003,3011IN 1BD/HD DVDIN 3CBL/SATIN 4DVROUT1IN 2DVDEQUALIZER1442IC103EQUALIZER1442IC104DSD DirectIC313IC313INP/Z3SPEAKERS OUTIC107,108ADSDOMPCM/DSDZ2Z2Z3Z3FL/FRFL/FRSL/SRSBL/SBRREC/Z2DOCK(iPod)TUNERDAL/DARMix:-10.6dBIC50224535ISELADSDORSEL859110,119,1019,201,23,45,67,823,2425,2623,2415-1817-2111,12

8、15,1617,1819,20,25,2611,1213-16,21,229,101,23,45,67,83,45,67,89,1011,1213,1421,2223,243,45,67,89,1013,1415,1623,2425,261,21,211,12,1325,2619,20211543211542113011324,25343224,25324,25324,253311511611711924154,5,24,2513,249,103,48,916,213230,315-733,344,294,2916,2116,2113,2413,241,321,3228,29T-CONTROL

9、IC102Sil9134U, C, R, T, K, A, B, G, E, L models(R, T, K, A, B, G, E, L, J models)(U model)(U, C models)TUNERHD RADIOSIRIUSAM/FM(C, R, T, K, A, B, G, E, L, J models)U, C modelsDSP See page 123-125 SCHEMATIC DIAGRAMOPERATION See page 130 SCHEMATIC DIAGRAMMAIN See page 131 SCHEMATIC DIAGRAMOPERATION Se

10、e page 130 SCHEMATIC DIAGRAMD-VIDEO See page 135-139 SCHEMATIC DIAGRAMCONNECT See page 144 SCHEMATIC DIAGRAMFUNCTION See page 126-129 SCHEMATIC DIAGRAM BLOCK DIAGRAMSAUDIO SECTION BLOCK DIAGRAMRadioFans.CN 收音机爱 好者资料库ABCDEFGHIJ1234567RX-V1900/HTR-6290/DSP-AX190085CVBS INPUTSELECTORIC211Y INPUTSELECTO

11、RIC213C INPUTSELECTORIC215CYVCYVDVRVCRRECOUTCOMPONENT VIDEO0dBYBD/HD DVDBD/HD DVDYPb/CbPr/CrPb/CbPr/CrL1/L2/L3YPb/CbPr/CrL1/L2/L3YDVDDVDYCBL/SATCBL/SATBD/HD DVDDVDDVRVCRCBL/SATYL1/L2/L30dB0dBSIGNALDETECTCYMONITOR OUTVIDEOS-VIDEOVIDEOS-VIDEOVIDEOS-VIDEOVIDEOS-VIDEOYVC6dB6dB6dB1214415135321MUTEIC219IC

12、221MONITOR OUTMONITOR OUTD5 VIDEOPbYPr6dB6dB6dBPOWERSAVE/VMTY,Pb,PrVYCCONVSVDETIC220IC224LINESELECTORIC204,205INPUTLINE SELECTOR(4052)DVDCABLE/SATCMP0LLD-TVINHIBITHHCMP1LHLHMUTE6dB6dB6dB6dB6dB6dBMUTEIC218FREQUENCYCOUNTERCMP0,CMP1L13LA7106NJM258140534052405140514051LA73050TC74VHC04TA13186dB6dBOSD ICL

13、C74782IC225BLANKQ2642IC224-6dBQ2631-26334053IC206IC224IC202IC22340536dBYCLAMP6dBVYSELCMPSELINPUT & LINE 0dB SELECTOR NJW1321IC201IC203PORT3PORT02Y OUT2Pb OUT2Pr OUT2Pr IN1-3 YIN1-3 AUX02 Y OUT1Pb OUT1Pr OUT1SCLSDAY IN4Pr IN4Pb IN4Pb IN1-3AUX3/OSDINMUTEPbPrIC207LA73054IC207Q26340dBCB201/MTMON/VMT/MTM

14、ON/VMT/MTVR2/VMT/MTVR1ADYADPbADPrADVADCADLumaYPb/CbPr/CrPb/CbPr/CrPb/CbPr/CrPb/CbPr/CrYPb/CbPr/CrL1/L2/L3LA73054IC206215DBCDE13452CB4153ADYADLumaADVADCADPbADPr0V2.2V16:95V4:3(Letter Box)4:3L14807200V2.2V10805VL2I-PL316:94:3(Letter Box)4:3YCDOCK (iPod)CYVCYVCYVCYVCYVCYVV-AUXVIA/VRAVIB/VRBVIC/VRCINPUT

15、iPodDVDV-AUXVCR2/DVRCABLE/SATVCR1D-TVINHIBITLLHLLLLHHHHLLLLLLHHHHHHHCVBS & YC INPUT/RECOUT SELECTOR (4051)SDALSCLLSDALSCLLLC709004AIC222SDTV/ICEXSCKVVIA/VR1/VR2COMP0COMP1R/ZCONVVYSELCMPSELIPSEL/OSDINMUTEVIBVICVRAVRCVRCCSSQ2601CB202DAYDAPrDAPbDACDACDALumaW2002CB2036dBLumaIC207LA730546dBIC207LA730546d

16、BVD5 VIDEOAnalog BypassS-VIDEO/VIDEOSDTNSCKN/OSDCEVSYHDMIA/DVIDEO DECODERADV7401BIC124VIDEO ENCODERD/AADV7342IC123DE-INTERLACERi.ChipsIP00C772IC145HDMIDUAL RECEIVERSil9135IC101HDMITRANSMITTERSil9134IC102R1438, 1439, 1449-1451Bypass64M(1Mx16)108MHzSDRAMIC14488883(4)101041212410104831119OP_CLKOP_HSYNC

17、OP_VSYNCOP_ACTIVEDAC D/S_VSYNC/S_HSYNCS7-0CLKIN_B/P_HSYNC/P_VSYNCC7-0Y7-0CLKIN_ADAC EDAC F28.636363MHz27MHzIC121LA730533(4)20DAC BDAC CDAC ALPF6.75MHzLPF13.5MHzCB122RESETSCLKSDADACDAVDALumaDAYDAPrDAPbEqualizer1442ARIC103Equalizer1442ARIC10412IN1IN2IN3IN4OUTVIDEO MICROPROCESSORM30845MWGPIC18210MHzSDT

18、VSCKVCSSSDALSCLLSDAVSCLVSDAVSCLVSDAHSCLHSDAHSCLHSCLHSDAHSCLVSDAV/MTMON/MTZ2MICROPROCESSOR(MAIN)M3087IC40220MHzSDTNSCKN/OSDCEVSY/VMT/ICIPIC171-173/AUPS/AUPYGV/AUPIPC/AUPS/AUPDEC/ICV/ICY/ICIP/ICS CB12 1SVDETLPFCTLIPSCLKIPSOIPSI/IPSSSCALERABT1010IC170VCLKSCLSDASYSCLKRESETNDECSCLCSDAVSYNCYSYNCIDCKD0-11D

19、12-23D24-35IN_HSNIN_VSNIN_DEINPUTC9-0VCLKHSNVSNDEGREEN7-0BLUE3-2SDAVSCLV/ICSRED7-0BLUE7-6INPUTY9-0IC164-166/AUPYGVIC167-169/AUPIPC480i480p /480p480p480i/HD1080p (24bit)Deep Color (36bit)IPSCLKIPSOIPSI/IPSSXINXOUTXINXOUTXTALINXTALOUTCSCLCSDAQ25-35ODCKHSYNCVSYNCDEQ0-11Q12-23XTALXTAL1SCLK1RESETSCLK2SDA

20、1SDA2AIN8AIN9AIN7AIN6AIN5AIN4SOYP19-12P9-2LLC1V_HSYNCV_VSYNCV_CLKAVINA15-8VINA23-16V_CLKBRESET_NACLSDA-5IOP_DATA19-10OP_DATA9-0HSVS(DE)6dBATT8889949213611441291311281341338766-681441161171188911590513736563222022207(J model)(J model)DSP See page 123-125 SCHEMATIC DIAGRAMOPERATION See page 130 SCHEMA

21、TIC DIAGRAMFUNCTION See page 126-129 SCHEMATIC DIAGRAMD-VIDEO See page 135-139 SCHEMATIC DIAGRAMA-VIDEO See page 133, 134 SCHEMATIC DIAGRAMVIDEO SECTION BLOCK DIAGRAMRadioFans.CN 收音机爱 好者资料库ABCDEFGHIJ123456786RX-V1900/HTR-6290/DSP-AX1900RY1Q6D10C9D11AC INTEI+B-BGQ21Q22+12+12T-12G-5VA+5VAFL1FL2F1IC10A

22、VGIC6Q20+5D2Q2POWER DETECT /RESETQ1,3+5.5IC407+5MMGPOWERDETECTRESETPOWER RELAY+5MMQ4005D4009D4008POWER SAVE+5SPC+5M2s10IC1,2,3RERESI-800BHFE+6SDSPIC8ORORIC9+9VBLBL2SD2014D301 D15XB20D20 D2SBA20D13 D4SBS4D14 D2SBA20D19 D2SBA20D12 D4SBS42SD20142SB1257+3.3VD79M05WHGYR33YEYEIC5+BDV+5SDV7809IC7IC12BLBLR3

23、7BA00JC5WT1RY250RY251RERYBLRYBMORORREBKBLBLIGND+5IBA00JC5WSI-800BHFEBA00JC5WPOWER TRANSFORMERPUPUDVG+5VDPOWER SAVE111POWER RELAY80ZONE2/3 MUTE CONTROL62,63FULL MUTE CONTROL64,66,67,6847DIGITAL FULL MUTE28i PDET31XMPWR (U, C models)95858182iPod ACCESSORY POWER DETECTi PWRRYBLRYBMIR REMOTEU9001MASTER

24、SWSW808VOLUMESW806INPUT SELECTORSW803123,124109,110PROGRAMSW807113,114107,108115,119103202225XL40220MHzPRIPRVPRVSTHMPOWERDETECTRESET87138139PRD137135,1362619PLMT141MAIN/ZONE SWSW802102PANEL KEYSW901-902, 904-905, 907-914ZONE 2/3 KEYON/OFFFL DISPLAYV9001PURE DIRECTSW801FL DRIVERIC901, 902MICROPROCESS

25、ORM30845IC4022SD2014BA00JC5W+3.3N+2.5DQ16IC11BA00JC5WIC4+5NPQ200WNAPQ200WNA+5D1+5BUS (U, C models)IC545IC543NJM2885DLR1172S121DIC544NJM2885DL+1.2V1+1.2V2+3.3VIC542IC541DGNETG(U, C, R, T, K, A, B, G, E, L models)FUNCTION See page 126-129 SCHEMATIC DIAGRAMFUNCTION See page 126-129 SCHEMATIC DIAGRAMDSP

26、 See page 123-125 SCHEMATIC DIAGRAMMAIN See page 131 SCHEMATIC DIAGRAMPOWER See page 132 SCHEMATIC DIAGRAMFL See page 140, 141 SCHEMATIC DIAGRAMOPERATION See page 130 SCHEMATIC DIAGRAMOPERATION See page 130 SCHEMATIC DIAGRAMCONTROL/POWER SECTION BLOCK DIAGRAMABCDEFGHIJ1234567RX-V1900/HTR-6290/DSP-AX

27、190087D0D15D0D15A1A21A0A11,A14,A15Reset for FLASHSerial communicationBetween EP9301 and iPod (UART0)Serial communicationBetween EP9301 and main microprocessor(UART1)Reset from main microprocessor to P.C.B. NET Reset for EP9301USB power enableError detectBICKLRCKSDO(I2S)IC752 NJM4565MMUTELOGIC for AU

28、DIO CLOCKSN74LV163APWR IC615,616SN74LV74APWR IC617(+3.3D)AUDIO DACPCM1781DBQRIC751(+5A)3.3V 5V74LCX07MTCXIC614(+3.3D)128Mbit SDRAMEDS1216AATA-75IC611(+3.3D)32Mbit FLASH-ROMS29JL032H70TFI020IC613(+3.3D)MICROPROCESSOR(NET)EP9301-CQZ166MHzIC610(RVDD:+3.3DC)(CVDD:+1.8DC)+3.3D22.5792MHz+3.3DC22.5792MHzXL

29、751REGULATORPQ018EZ01ZPHIC604(3.3V1.8V)14.7456MHzXL60232.768KHzXL601POWER DISTRIBUTIONSWITCH for USBMIC2026-2YMIC609+1.8DCRESET CIRCUITPower on resetBD4830FVE-TRIC601SDCLK=66MHzSDCLK=66MHz+3.3D(700mA)+5D (520mA)+12A(50mA)+5U for USB(500mA)+5DDA*AD*CLKCKEDQMUDQML/WE/CAS/RAS/CSSDCLKSDCLKENDQMn1DQMn0SD

30、WEnCASnRASnSDCSn3102082324142221153837391516171819DQ*A*DQ*A*/RESET/CE/WE/OECSn6WRnRDn2194193261128RXD0TXD0RXD1TXD1109113110114PRSTn12512W6051231:+3.3_N2:NETG3:+5_NCB601CB408653214118510961:RXDi(3.3V)2:TXDi(3.3V)4:TXDNW(5V)5:RXDNW(5V)6:NW_RST3:MGCB603W31021:VBus2:-DATA3:+DATA4:GND5:FG871212345USBW751

31、CB5624:+121:NETL3:NETR2:E42EGPIO4147EGPIO3148USBm2USBp215715893949614678645DGNDDACGND13+12ADACGND15(Lch)14(Rch)(RVDD)(CVDD)1,23SCLKLRCKSDO0EGPIO5DGNDDGNDXTALIXTALO118119RTCXTALI137DACGND+5A11CB531FUNCTION See page 126-129 SCHEMATIC DIAGRAMDSP See page 123-125 SCHEMATIC DIAGRAMNET See page 142, 143 S

32、CHEMATIC DIAGRAMDSP See page 123-125 SCHEMATIC DIAGRAMOPERATION(R, T, K, A, B, G, E, L, J models) See page 130 SCHEMATIC DIAGRAMNET SECTION BLOCK DIAGRAM(R, T, K, A, B, G, E, L, J models)CB501IC502IC502IC502IC510IC510IC502IC504IC505IC506IC507IC508IC509IC501IC501IC501IC503CB502CB504W5001CB503CB505IC5

33、12IC511A12345678910BCDEFGHIJKLMN RX-V1900/HTR-6290/DSP-AX1900123SCHEMATIC DIAGRAMSDSP 1/3B-1POINT B-1 XL502 (Pin 29 of IC506)5.05.05.05.012491112131053685.03.33.3000005.05.0004.1004.14.84.14.104.15.003.93.33.303.33.30004.14.84.14.14.105.003.9004.14.104.84.802.32.32.32.73.00000.1003.23.33.3003.33.300

34、0001.61.601.61.603.2001.63.303.33.30.203.303.33.3000000001.6001.6001.201.61.600.5003.303.33.34.83.2000.20.23.301.61.603.31.601.30.20.20.20.212.40.20.2-11.91.63.301.63.301.33.301.63.3003.303.33.24.84.800.60.503.33.93.903.303.33.300003.31.61.63.300.5003.21.203.23.201.63.31.602.0003.301.23.23.2000003.2

35、3.23.21.53.301.203.20003.33.2002.70.62.70.504.84.84.84.1D-2POINT D-2 XL501 (Pin 28 of IC503)ANALOG INANALOG INDIGITAL INDIGITAL INto DSP 2/3XMDOCK(U, C models)DIRREC OUTSELECTXMDTINPUTSELECTDUTY CORRECTORDIGITAL INPUTCOAXIALDIGITAL OUTPUTNo replacement part available.部品供給IC510: NJM2068MD-TE2Dual ope

36、rational amplifierOUT1OUT2IN1+IN1+IN2-IN2VCC+VCC12348765+ + 4B134A124Y113B103A93Y81B21Y32A42B52Y6GND7IC502: SN74AHCT00PWRQuadruple 2-input NAND gateVcc141A1S2S1S0EI0I1I2I3I4I5I6I7ZZ14126734591112101315VCC = PIN 16GND = PIN 8 = PIN NUMBERSIC504, 505: SN74LS151NSR8-input multiplexerIC501: SN74LVU04APW

37、RHex invertersGNDY3A3A2A1VCCA6A5A4Y6Y5Y4Y2Y1123456714131211109813254GNDVCCIC512: TC7SH08FU 2-input AND gateIN AIN BOUT YIC511: TC74VHC125FT high speed CMOS quad bus buffer11G21A31Y42G52A62Y7141312111098GNDVcc4G4A4Y3G3A3YinputsoutputsGYHZLLLAXLHHInputSelectorRXOUTRX0RX1RX2RX3RX4RX5/VIRX6/UILPFTMCK/PI

38、O0TBCK/PIO1TLRCK/PIO2TDATA/PIO3TXO/PIOENCbit, UbitMicrocontrollerI/FDataSelectorClockSelectorModulation&Parallel PortPLLXINXOUTXMCK CKSTSLRCKSBCKRLRCKRBCKRMCKSDINRDATARERRDOXMODECICECLINTAUDIO/VOEMPHA/UO1/NDemodulation&Lock detect1234589101344454647482928273423222017162421363741383940353332IC506: LC

39、89057W-VF4AD-EDigital audio interface transceiverIC509: SN74LV157APWRQuadruple 2-line to 1-line data selectors/multiplexersPin numbers shown are for the D, DB, DGV, J, NS, PW, and W packages.235611101413151GA/B4B4A3B3A2B2A1B1A479121Y2Y3Y4Y12345678161514131211109A/B1A1B1Y2A2B2YGNDVCCG4A4B4Y3A3B3YIC50

40、7, 508: TC74VHC153FTDual 4-channel multiplexer14AS0S061C02BS1S1S2S2S3S3S071Y51C1S141C2S211G31C3S3102C0S092Y112C1S1122C2S2152G132C3S3to FUNCTION (1)_CB411Page 126I8to OPERATION (3)_CB805Page 130F2to FL (2)_CB954Page 141B8to FL (2)_CB974Page 141D8IC531IC534IC538IC532IC533IC535IC535IC535IC535IC539IC537

41、IC546IC588IC536IC542IC541IC544IC543IC545W5301CB536CB530W5302CB531IC587IC540A12345678910BCDEFGHIJKLMNRX-V1900/HTR-6290/DSP-AX1900124DSP 2/3003.301.61.63.33.33.33.30001.2000003.3001.20001.2003.300001.203.13.301.63.3001.61.6000.43.30.10.101.20.11.201.23.33.33.301.23.33.3000000003.30.20.203.23.2003.33.3

42、1.23.20003.303.303.33.30005.54.61.44.82.32.34.800003.31.22.31.21.21.20002.32.21.202.33.33.3-0.1-0.14.61.24.35.05.3005.05.32.65.54.82.22.24.6003.3000003.3003.11.63.300001.71.92.12.0003.30000000000003.3000000003.303.30001.73.33.3001.92.12.02.71.31.7000003.300003.33.33.33.3003.33.33.3001.71.32.7003.300

43、1.21.71.302.71.22.02.103.31.91.701.20003.3000001.201.30003.301.21.63.303.3004321503.31.20001.203.33.33.303.33.31.23.33.3000003.300.20.203.33.303.24.83.24.03.24.83.24.80.24.80.20.100.10.103.30003.33.34.84.83.23.33.33.30004.803.303.303.35.05.0005.05.005.05.05.05.0000000.33.3ANALOG INANALOG INSBL/SBRC/

44、SWSL/SRFL/FRDIGITAL INNo replacement part available.部品供給to DSP 3/3to DSP 3/3to DSP 1/3(U, C models)DSP1RAMFLASH ROM13254GNDVCCIC531, 537, 539, 546: TC7SH08FU2-input AND gateIN AIN BOUT Y4B134A124Y113B103A93Y81B21Y32A42B52Y6GND7IC535: SN74AHCT08PWRQuadruple 2-input positive-AND gatesVcc141A113254GNDV

45、CCIC532, 533, 538: TC7SET32FU2-input OR gateIN AIN BOUT Y13452ICDC output (Vo)DC input (Vin)ON/OFF control (Vc)GNDDC output adjustment (Vadj)IC544: NJM2885DL1-33Low dropout voltage regulatorVOUTVIN GND312BandgapReferenceThermalProtectionIC543, 545: PQ200WNA1ZPH Low power loss regulator256256C67x+ Mi

46、croprocessorD164R/WDataD2R/WProgramFetchMemoryControllerRAM256K BytesMcASP DMA BusPeripheral Configuration BusMcASP016 SerializersMcASP16 SerializersMcASP22 SerializersDIT OnlySPI1SPI0I2C0I2C1RTIPLLProgram/DataROM Page1256K BytesProgram/DataROM Page2256K BytesProgram/DataROM Page3256K BytesHigh-perf

47、ormanceCrossbar SwitchCSPPMP DMPProgramCache32K BytesI/OI/OMAX0MAX1EventsInCONTROLdMAXEMIFPeripheral Interrupt and DMA EventsInterruptsOutINTData25625625625632323232323232323232326432323232323232323232IC541, 542: R1172S121D-E2-FVoltage regulatorVDDCEPin No.12, 5346SymbolVOUTGNDCENCVDDDescriptionOutp

48、ut Pin of Voltage RegulatorGround PinChip Enable PinNo ConnectionInput PinVref165,23Current LimitVOUTGND1DIRA1A2A3A4A5A6A7A8GNDVccOEB1B2B3B4B5B6B7B8234567891020191817161514131211IC536: SN74LV245APWROctal bus transceiver with 3-state outputsIC588: SN74LV157APWRQuadruple 2-line to 1-line data selector

49、s/multiplexersPin numbers shown are for the D, DB, DGV, J, NS, PW, and W packages.235611101413151GA/B4B4A3B3A2B2A1B1A479121Y2Y3Y4Y12345678161514131211109A/B1A1B1Y2A2B2YGNDVCCG4A4B4Y3A3B3YIC587: W9864G6GH-764 M x 4 banks SDRAMDQ0DQ15UDQMLDQMCLKCKEA10CLOCKBUFFERCOMMANDDECODERADDRESSBUFFERREFRESHCOUNTE

50、RCOLUMNCOUNTERCONTROLSIGNALGENERATORMODEREGISTERCELL ARRAYBANK #2COLUMN DECODERSENSE AMPLIFIERCELL ARRAYBANK #0CELL ARRAYBANK #3DATA CONTROLCIRCUITDQBUFFERCOLUMN DECODERSENSE AMPLIFIERCELL ARRAYBANK #1 ROW DECODERA0A9BS0BS1CSRASCASWEA11 ROW DECODERCOLUMN DECODERSENSE AMPLIFIERCOLUMN DECODERSENSE AMP