Please enter a valid full or partial manufacturer part number with a minimum of 3 letters or numbers

    MAX3491 Search Results

    SF Impression Pixel

    MAX3491 Price and Stock

    Maxim Integrated Products MAX3491CSD-T

    IC TRANSCEIVER FULL 1/1 14SOIC
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey MAX3491CSD-T Cut Tape 4,493 1
    • 1 $7.45
    • 10 $5.084
    • 100 $3.7873
    • 1000 $3.08453
    • 10000 $3.08453
    Buy Now
    MAX3491CSD-T Digi-Reel 4,493 1
    • 1 $7.45
    • 10 $5.084
    • 100 $3.7873
    • 1000 $3.08453
    • 10000 $3.08453
    Buy Now
    MAX3491CSD-T Reel 2,500 2,500
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $2.92516
    Buy Now
    Bristol Electronics MAX3491CSD-T 669
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Get Quote

    Maxim Integrated Products MAX3491ECSD-T

    IC TRANSCEIVER FULL 1/1 14SOIC
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey MAX3491ECSD-T Digi-Reel 3,657 1
    • 1 $9.36
    • 10 $6.478
    • 100 $4.9022
    • 1000 $4.04936
    • 10000 $4.04936
    Buy Now
    MAX3491ECSD-T Cut Tape 3,657 1
    • 1 $9.36
    • 10 $6.478
    • 100 $4.9022
    • 1000 $4.04936
    • 10000 $4.04936
    Buy Now
    MAX3491ECSD-T Reel 2,500 2,500
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $3.94591
    Buy Now
    Quest Components MAX3491ECSD-T 1,012
    • 1 $7.8075
    • 10 $7.8075
    • 100 $7.8075
    • 1000 $3.9038
    • 10000 $3.9038
    Buy Now
    MAX3491ECSD-T 425
    • 1 $7.8075
    • 10 $7.8075
    • 100 $3.3833
    • 1000 $3.123
    • 10000 $3.123
    Buy Now

    Maxim Integrated Products MAX3491EESD-

    IC TRANSCEIVER FULL 1/1 14SOIC
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey MAX3491EESD- Tube 2,229 1
    • 1 $12.47
    • 10 $8.788
    • 100 $6.781
    • 1000 $5.725
    • 10000 $5.725
    Buy Now

    Maxim Integrated Products MAX3491ESD-T

    IC TRANSCEIVER FULL 1/1 14SOIC
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey MAX3491ESD-T Digi-Reel 2,038 1
    • 1 $8.59
    • 10 $5.911
    • 100 $4.4466
    • 1000 $3.65373
    • 10000 $3.65373
    Buy Now
    Win Source Electronics MAX3491ESD-T 34,530
    • 1 -
    • 10 -
    • 100 $1.223
    • 1000 $0.993
    • 10000 $0.993
    Buy Now

    Maxim Integrated Products MAX3491AEASD+T

    IC TRANSCEIVER FULL 1/1 14SOIC
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey MAX3491AEASD+T Cut Tape 1,825 1
    • 1 $7.71
    • 10 $5.276
    • 100 $3.9394
    • 1000 $3.21548
    • 10000 $3.21548
    Buy Now

    MAX3491 Datasheets (49)

    Part ECAD Model Manufacturer Description Curated Datasheet Type PDF
    MAX3491 Maxim Integrated Products 3.3V-Powered, 10Mbps and Slew-Rate-Limited True RS-485-RS-422 Transceivers Original PDF
    MAX3491AEASD+ Maxim Integrated Integrated Circuits (ICs) - Interface - Drivers, Receivers, Transceivers - IC TXRX RS422/485 14SOIC Original PDF
    MAX3491AEASD+T Maxim Integrated Integrated Circuits (ICs) - Interface - Drivers, Receivers, Transceivers - IC TXRX RS422/485 3.3V 14SOIC Original PDF
    MAX3491C/D Maxim Integrated Products 3.3V-Powered, 10Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers Original PDF
    MAX3491CPD+ Maxim Integrated Products Interface - Drivers, Receivers, Transceivers, Integrated Circuits (ICs), IC TXRX RS485/422 10MBPS 14DIP Original PDF
    MAX3491CPD Maxim Integrated Products 3.3V-Powered, 10Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers Original PDF
    MAX3491CPD+ Maxim Integrated Products 3.3V Powered, 10Mbps and Slew-Rate Limited, True RS-485/RS-422 Transceivers Original PDF
    MAX3491CSD Maxim Integrated Products Interface - Drivers, Receivers, Transceivers, Integrated Circuits (ICs), IC TXRX RS485/422 10MBPS 14SOIC Original PDF
    MAX3491CSD+ Maxim Integrated Products Interface - Drivers, Receivers, Transceivers, Integrated Circuits (ICs), IC TXRX RS485/422 10MBPS 14SOIC Original PDF
    MAX3491CSD Maxim Integrated Products 3.3V-Powered, 10Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers Original PDF
    MAX3491CSD+ Maxim Integrated Products 3.3V Powered, 10Mbps and Slew-Rate Limited, True RS-485/RS-422 Transceivers Original PDF
    MAX3491CSD+TG002 Maxim Integrated Integrated Circuits (ICs) - Interface - Drivers, Receivers, Transceivers - INTEGRATED CIRCUIT Original PDF
    MAX3491CSD+TG126 Maxim Integrated Integrated Circuits (ICs) - Interface - Drivers, Receivers, Transceivers - INTEGRATED CIRCUIT Original PDF
    MAX3491CSD-G002 Maxim Integrated Products 3.3V Powered, 10Mbps and Slew-Rate Limited, True RS-485/RS-422 Transceivers Original PDF
    MAX3491CSD+T Maxim Integrated Products Interface - Drivers, Receivers, Transceivers, Integrated Circuits (ICs), IC TXRX RS485/422 10MBPS 14SOIC Original PDF
    MAX3491CSD+T Maxim Integrated Products 3.3V Powered, 10Mbps and Slew-Rate Limited, True RS-485/RS-422 Transceivers Original PDF
    MAX3491CSD-T Maxim Integrated Products 3.3V Powered, 10Mbps and Slew-Rate Limited, True RS-485/RS-422 Transceivers Original PDF
    MAX3491CSD-TG002 Maxim Integrated Products 3.3V Powered, 10Mbps and Slew-Rate Limited, True RS-485/RS-422 Transceivers Original PDF
    MAX3491E Maxim Integrated Products 3.3V-Powered, ±15kV ESD-Protected, 12Mbps and Slew-Rate-Limited True RS- 485-RS-422 Transceivers Original PDF
    MAX3491ECPD Maxim Integrated Products 3.3V-Powered, ±15kV ESD-Protected, 12Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers Original PDF

    MAX3491 Datasheets Context Search

    Catalog Datasheet MFG & Type PDF Document Tags

    Untitled

    Abstract: No abstract text available
    Text: 19-0333; Rev 0; 12/94 3.3V-Powered, 10Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers The MAX3483, MAX3485, MAX3486, MAX3488, MAX3490, and MAX3491 are 3.3V, low-power transceivers for RS-485 and RS-422 communication. Each part contains one driver and one receiver. The


    Original
    PDF 10Mbps RS-485/RS-422 MAX3483, MAX3485, MAX3486, MAX3488, MAX3490, MAX3491 RS-485 RS-422

    MAX3490e DIE

    Abstract: MAX3483E MAX3485E MAX3486E MAX3488E MAX3490E MAX3491E
    Text: General Description Devices in the MAX3483E family MAX3483E/MAX3485E/ MAX3486E/MAX3488E/MAX3490E/MAX3491E are ±15kV ESD-protected, +3.3V, low-power transceivers for RS-485 and RS-422 communications. Each device contains one driver and one receiver. The MAX3483E and


    Original
    PDF MAX3483E MAX3483E/MAX3485E/ MAX3486E/MAX3488E/MAX3490E/MAX3491E) RS-485 RS-422 MAX3488E 250kbps. MAX3486E MAX3485E, MAX3490e DIE MAX3485E MAX3490E MAX3491E

    MAX3488

    Abstract: MAX3483ESA MAX3485EPA MAX3486 MAX3490 MAX3485 MAX3483 MAX3491 MAX3486ESA T MAX3485CPA
    Text: 19-0333; Rev 0; 12/94 3.3V-Powered, 10Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers The MAX3483, MAX3485, MAX3486, MAX3488, MAX3490, and MAX3491 are 3.3V, low-power transceivers for RS-485 and RS-422 communication. Each part contains one driver and one receiver. The


    Original
    PDF 10Mbps RS-485/RS-422 MAX3483, MAX3485, MAX3486, MAX3488, MAX3490, MAX3491 RS-485 RS-422 MAX3488 MAX3483ESA MAX3485EPA MAX3486 MAX3490 MAX3485 MAX3483 MAX3486ESA T MAX3485CPA

    MAX3491EESD

    Abstract: 4340X MAX3490e DIE
    Text: MAX3491EESD RELIABILITY REPORT FOR MAX3491EESD+ PLASTIC ENCAPSULATED DEVICES June 21, 2011 MAXIM INTEGRATED PRODUCTS 120 SAN GABRIEL DR. SUNNYVALE, CA 94086 Approved by Sokhom Chum Quality Assurance Reliability Engineer Maxim Integrated Products. All rights reserved.


    Original
    PDF MAX3491EESD MAX3491EESD+ Assura004A RS17-1 /-2000V /-250mA. MAX3491EESD 4340X MAX3490e DIE

    Untitled

    Abstract: No abstract text available
    Text: MAX3483/MAX3485/MAX3486/ MAX3488/MAX3490/MAX3491 LE AVAILAB 3.3V-Powered, 10Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers _General Description The MAX3483, MAX3485, MAX3486, MAX3488, MAX3490, and MAX3491 are 3.3V, low-power transceivers for RS-485 and RS-422 communication. Each


    Original
    PDF MAX3483/MAX3485/MAX3486/ MAX3488/MAX3490/MAX3491 10Mbps RS-485/RS-422 MAX3483, MAX3485, MAX3486, MAX3488, MAX3490, MAX3491

    Untitled

    Abstract: No abstract text available
    Text: 19-1474; Rev 0; 4/99 3.3V-Pow ered, ±15kV ESD-Protected, 12Mbps and Slew -Rate-Limited True RS-485/RS-422 Transceivers Fe a t ure s Devices in the MAX3483E family MAX3483E/MAX3485E/ MAX3486E/MAX3488E/MAX3490E/MAX3491E are ±15kV ESD-protected, +3.3V, low-power transceivers for


    Original
    PDF 12Mbps RS-485/RS-422 MAX3483E MAX3483E/MAX3485E/ MAX3486E/MAX3488E/MAX3490E/MAX3491E) RS-485 RS-422 MAX3488E 250kbps.

    Untitled

    Abstract: No abstract text available
    Text: MAX3483/MAX3485/MAX3486/ MAX3488/MAX3490/MAX3491 LE AVAILAB 3 .3 V-Pow e re d, 1 0 M bps a nd Sle w -Ra t e -Lim it e d True RS-4 8 5 /RS-4 2 2 Tra nsc e ive rs _Ge ne ra l De sc ript ion _Fe a t ure s The MAX3483, MAX3485, MAX3486, MAX3488,


    Original
    PDF MAX3483/MAX3485/MAX3486/ MAX3488/MAX3490/MAX3491 MAX3483, MAX3485, MAX3486, MAX3488, MAX3490, MAX3491 RS-485 RS-422

    MAX3490

    Abstract: MAX3491 MAX3483 MAX3485 MAX3486 MAX3488
    Text: 19-0333; Rev 0; 12/94 3.3V-Powered, 10Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers The MAX3483, MAX3485, MAX3486, MAX3488, MAX3490, and MAX3491 are 3.3V, low-power transceivers for RS-485 and RS-422 communication. Each part contains one driver and one receiver. The


    Original
    PDF 10Mbps RS-485/RS-422 MAX3483, MAX3485, MAX3486, MAX3488, MAX3490, MAX3491 RS-485 RS-422 MAX3490 MAX3483 MAX3485 MAX3486 MAX3488

    max3490 die

    Abstract: No abstract text available
    Text: MAX3491ESD RELIABILITY REPORT FOR MAX3491ESD+ PLASTIC ENCAPSULATED DEVICES June 21, 2011 MAXIM INTEGRATED PRODUCTS 120 SAN GABRIEL DR. SUNNYVALE, CA 94086 Approved by Sokhom Chum Quality Assurance Reliability Engineer Maxim Integrated Products. All rights reserved.


    Original
    PDF MAX3491ESD MAX3491ESD+ CO003A RS17-1 /-2000V /-100mA. max3490 die

    max3491EESD

    Abstract: No abstract text available
    Text: 19-1474; Rev 0; 4/99 3.3V-Powered, ±15kV ESD-Protected, 12Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers Devices in the MAX3483E family MAX3483E/MAX3485E/ MAX3486E/MAX3488E/MAX3490E/MAX3491E are ±15kV ESD-protected, +3.3V, low-power transceivers for


    Original
    PDF 12Mbps RS-485/RS-422 MAX3483E MAX3483E/MAX3485E/ MAX3486E/MAX3488E/MAX3490E/MAX3491E) RS-485 RS-422 MAX3488E 250kbps. max3491EESD

    Untitled

    Abstract: No abstract text available
    Text: MAX3483/MAX3485/MAX3486/ MAX3488/MAX3490/MAX3491 LE AVAILAB 3.3V-Powered, 10Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers _General Description The MAX3483, MAX3485, MAX3486, MAX3488, MAX3490, and MAX3491 are 3.3V, low-power transceivers for RS-485 and RS-422 communication. Each


    Original
    PDF MAX3483/MAX3485/MAX3486/ MAX3488/MAX3490/MAX3491 10Mbps RS-485/RS-422 MAX3483, MAX3485, MAX3486, MAX3488, MAX3490, MAX3491

    MAX3483E

    Abstract: MAX3486E MAX3490 MAX3490EESA MAX3491E MAX3485E MAX3488E MAX3490E MAX3491EESD MAX3490e DIE
    Text: 19-1474; Rev 0; 4/99 3.3V-Powered, ±15kV ESD-Protected, 12Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers Devices in the MAX3483E family MAX3483E/MAX3485E/ MAX3486E/MAX3488E/MAX3490E/MAX3491E are ±15kV ESD-protected, +3.3V, low-power transceivers for


    Original
    PDF 12Mbps RS-485/RS-422 MAX3483E MAX3483E/MAX3485E/ MAX3486E/MAX3488E/MAX3490E/MAX3491E) RS-485 RS-422 MAX3488E 250kbps. MAX3486E MAX3490 MAX3490EESA MAX3491E MAX3485E MAX3490E MAX3491EESD MAX3490e DIE

    MAX3483

    Abstract: MAX3485 MAX3486 MAX3488 MAX3490 MAX3491 RS-485 Network MAX3485CPA
    Text: 19-0333; Rev 0; 12/94 3.3V-Powered, 10Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers The MAX3483, MAX3485, MAX3486, MAX3488, MAX3490, and MAX3491 are 3.3V, low-power transceivers for RS-485 and RS-422 communication. Each part contains one driver and one receiver. The


    Original
    PDF 10Mbps RS-485/RS-422 MAX3483, MAX3485, MAX3486, MAX3488, MAX3490, MAX3491 RS-485 RS-422 MAX3483 MAX3485 MAX3486 MAX3488 MAX3490 RS-485 Network MAX3485CPA

    Untitled

    Abstract: No abstract text available
    Text: SN65HVD30 SN65HVD39 www.ti.com SLLS665C – SEPTEMBER 2005 – REVISED JULY 2006 3.3V FULL-DUPLEX RS-485 DRIVERS AND RECEIVERS FEATURES • • • • • • • • • • 1 1/8 Unit-Load Option Available (Up to 256 Nodes on the Bus) Bus-Pin ESD Protection Exceeds 15 kV HBM


    Original
    PDF SN65HVD30 SN65HVD39 SLLS665C RS-485 TIA/EIA-485-A RS-422 SN65HVD50-59

    Untitled

    Abstract: No abstract text available
    Text: RHL QFN D-8 (SOIC) SN65HVD30 SN65HVD35 D-14 (SOIC) www.ti.com . SLLS665G – SEPTEMBER 2005 – REVISED DECEMBER 2008


    Original
    PDF SN65HVD30 SN65HVD35 SLLS665G RS-485

    ADI cross reference

    Abstract: RS-485 ESD CROSS RS-485/RS-422 Cross-Reference for MAX483E second source ADM3072E ADM3073E ADM3074E
    Text: Analog Devices RS-485/RS-422 Transceivers Cross-Reference Guide 15 kV, ESD Protected RS-485/RS-422 Transceivers Part Number VCC V Data Rate Half-/Full-Duplex Nodes on Bus Driver/Receiver Enable Fail-Safe Package Second Source ADM3070E 3 250 kbps Full 256


    Original
    PDF RS-485/RS-422 ADM3070E 14-lead MAX3070E ADM3071E MAX3071E ADM3072E MAX3072E ADM3073E ADI cross reference RS-485 ESD CROSS Cross-Reference for MAX483E second source ADM3072E ADM3073E ADM3074E

    5V and 12V RS-232, 2 Drivers, 2 Receivers

    Abstract: capacitor cross reference voltage regulator 5 pin SPX29302U5 RS-485 maxim MAX3491EESA DS26LS31TM LP2950ACN-5.0 LP2950CZ-3.3 equivalent AAT4625
    Text: Product Cross Reference Guide January 2004 2004 Sipex Cross Reference Guide Table of Contents Manufacturers Analog Devices AnalogicTech Astec Bay Linear Cal Logic Dallas Semiconductor Exar Fairchild Harris International Rectifier Intersil Linear Technology


    Original
    PDF OT-23 TPS61040 SP6690 TPS61040DBV SP4446EK TPS61041 SP4446 5V and 12V RS-232, 2 Drivers, 2 Receivers capacitor cross reference voltage regulator 5 pin SPX29302U5 RS-485 maxim MAX3491EESA DS26LS31TM LP2950ACN-5.0 LP2950CZ-3.3 equivalent AAT4625

    MAX202, MAX232

    Abstract: DS75176 MAX485 rx tx adm213 MAX202 CROSS REFERENCE datasheet ds75176 ADM1485 ADI cross reference RS-232 AD7306 equivalents
    Text: ADI - Interface Products Selection Guide Page 1 of 5 Interface Products Selection Guide Interface Line Drivers/Receivers, RS-232 Sorted by Data-Rate and # Tx Generic Protocol Data-Rate kBps #Tx #Rx Pwr Supply Voltage (Vnom) PS Current, Unloaded (mA max)


    Original
    PDF RS-232 ADM560 ADM561 ADM5170 RS-232, RS-423, ADM203 MAX202, MAX232 DS75176 MAX485 rx tx adm213 MAX202 CROSS REFERENCE datasheet ds75176 ADM1485 ADI cross reference RS-232 AD7306 equivalents

    QFN-20

    Abstract: SN65HVD30 SN65HVD31 SN65HVD39
    Text: RHL QFN D-8 (SOIC) www.ti.com D-14 (SOIC) SN65HVD30 SN65HVD39 SLLS665E – SEPTEMBER 2005 – REVISED MARCH 2008 3.3 V FULL-DUPLEX RS-485 DRIVERS AND RECEIVERS FEATURES 1 • • • • • • • • • • (1) 1/8 Unit-Load Option Available (Up to


    Original
    PDF SN65HVD30 SN65HVD39 SLLS665E RS-485 TIA/EIA-485-A RS-422 QFN-20 SN65HVD30 SN65HVD31 SN65HVD39

    MAX485EESA

    Abstract: MAX3460-MAX3464 MAX485E FULL DUPLEX MAX485ECSA max483e
    Text: 19-0410; Rev 4; 10/03 ±15kV ESD-Protected, Slew-Rate-Limited, Low-Power, RS-485/RS-422 Transceivers Next-Generation Device Features ♦ For Fault-Tolerant Applications: MAX3430: ±80V Fault-Protected, Fail-Safe, 1/4Unit Load, +3.3V, RS-485 Transceiver MAX3080MAX3089: Fail-Safe, High-Speed


    Original
    PDF RS-485/RS-422 MAX481E, MAX483E, MAX485E, MAX487E­ MAX491E, MAX1487E RS-485 RS-422 MAX485EESA MAX3460-MAX3464 MAX485E FULL DUPLEX MAX485ECSA max483e

    Untitled

    Abstract: No abstract text available
    Text: RHL QFN D-8 (SOIC) D-14 (SOIC) SN65HVD30 SN65HVD35 www.ti.com SLLS665I – SEPTEMBER 2005 – REVISED APRIL 2010 3.3 V FULL-DUPLEX RS-485 DRIVERS AND RECEIVERS Check for Samples: SN65HVD30 SN65HVD35 FEATURES 1 • • • • • • • • •


    Original
    PDF SN65HVD30 SN65HVD35 SLLS665I RS-485 RS-422

    ADM667

    Abstract: Profibus UART rs485 MAX308x RS-485 ADM2486 UART ADM485 ADM2490 ADM2490E ADM3485
    Text: RS-485 Products 2006年 アナログ・デバイセズ・アプリケーション・ブリテン 本号の内容 ADM2485:トランス・ドライバ 内蔵16ピン表面実装パッケージ の 16Mbps、iCoupler 絶縁型、 PROFIBUS 準拠 RS-485 ADM2485:トランス・ドライバ内蔵、16 ピン表面実装パッケージの


    Original
    PDF RS-485 ADM2485 16Mbps RS-485 ADM248516 16MbpsiCoupler® ADM2490E16 16MbpsESD RS-485/RS-422 ADM667 Profibus UART rs485 MAX308x ADM2486 UART ADM485 ADM2490 ADM2490E ADM3485

    TX2 RX2

    Abstract: TX6-RX6 AD27 AD29 AD30 TX2 -RX2 27C62 CTS5 Tx4 rx4 TX-2/RX-2
    Text: Non-PnP mode selection table C J39 XR17C158/C154/L154 UART1 154 UART2(154) 1 2 108 107 74 73 68 67 66 65 CHTX0 CHRX0 125 132 126 130 127 131 129 128 117 124 118 122 119 123 121 120 106 99 105 101 104 100 102 103 98 91 97 93 96 92 94 95 88 81 87 83 86 82 84


    Original
    PDF XR17C158/C154/L154 MAX3491 HSDL-2300 RS422/485 TX2 RX2 TX6-RX6 AD27 AD29 AD30 TX2 -RX2 27C62 CTS5 Tx4 rx4 TX-2/RX-2

    marking code E5 SMD ic sot23-5

    Abstract: Satellite DISEQC SWITCH 4x1 acer laptop motherboard circuit diagram acer laptop battery pinout nec tokin oe 128 schematic LG TV lcd backlight inverter ACER laptop schematic diagram HP COMPAQ MOTHERBOARD CIRCUIT diagram schematic acer lcd backlight inverter APC 5kv UPS CIRCUIT DIAGRAM
    Text: We hope that you will find this CD-ROM a helpful tool for selecting the best Maxim IC for your design. To the left, please find a menu of the documents contained on this CD-ROM. Click on each item for a more detailed list. All of the indexes, tables, and trees on this CD-ROM contain links to product data sheets. After you have viewed a


    Original
    PDF MAX038 MAX038EVKIT 2001elec marking code E5 SMD ic sot23-5 Satellite DISEQC SWITCH 4x1 acer laptop motherboard circuit diagram acer laptop battery pinout nec tokin oe 128 schematic LG TV lcd backlight inverter ACER laptop schematic diagram HP COMPAQ MOTHERBOARD CIRCUIT diagram schematic acer lcd backlight inverter APC 5kv UPS CIRCUIT DIAGRAM