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

    SN65HVD Search Results

    SN65HVD Result Highlights (5)

    Part ECAD Model Manufacturer Description Download Buy
    SN65HVD06DR Texas Instruments High-Output RS-485 Transceiver 8-SOIC -40 to 85 Visit Texas Instruments Buy
    SN65HVD08D Texas Instruments 3.3/5-V RS-485 Transceiver 8-SOIC -40 to 85 Visit Texas Instruments Buy
    SN65HVD10P Texas Instruments 3.3 V Half-duplex RS-485 Transceiver, 32Mbps 8-PDIP -40 to 85 Visit Texas Instruments Buy
    SN65HVD1050DR Texas Instruments High-Speed CAN Transceiver with Silent Mode 8-SOIC -40 to 125 Visit Texas Instruments Buy
    SN65HVD11P Texas Instruments 3.3V Differential Transceiver 8-PDIP -40 to 85 Visit Texas Instruments Buy
    SF Impression Pixel

    SN65HVD Price and Stock

    Texas Instruments SN65HVD251QDRQ1

    IC TRANSCEIVER HALF 1/1 8SOIC
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey SN65HVD251QDRQ1 Cut Tape 5,453 1
    • 1 $3.91
    • 10 $2.957
    • 100 $2.4547
    • 1000 $2.19133
    • 10000 $2.19133
    Buy Now
    SN65HVD251QDRQ1 Digi-Reel 5,453 1
    • 1 $3.91
    • 10 $2.957
    • 100 $2.4547
    • 1000 $2.19133
    • 10000 $2.19133
    Buy Now
    SN65HVD251QDRQ1 Reel 2,500 2,500
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $2.1256
    Buy Now
    Ameya Holding Limited SN65HVD251QDRQ1 29,825
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Get Quote
    Chip 1 Exchange SN65HVD251QDRQ1 2,005
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Get Quote
    New Advantage Corporation SN65HVD251QDRQ1 1,218 1
    • 1 -
    • 10 -
    • 100 $5.44
    • 1000 $5.44
    • 10000 $5.08
    Buy Now
    Win Source Electronics SN65HVD251QDRQ1 9,585
    • 1 -
    • 10 -
    • 100 $2.5039
    • 1000 $2.17
    • 10000 $2.17
    Buy Now

    Texas Instruments SN65HVD20DR

    IC TRANSCEIVER HALF 1/1 8SOIC
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey SN65HVD20DR Reel 5,000 2,500
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $2.12427
    Buy Now
    Rochester Electronics SN65HVD20DR 1 1
    • 1 $2.16
    • 10 $2.16
    • 100 $2.03
    • 1000 $1.84
    • 10000 $1.84
    Buy Now
    Ameya Holding Limited SN65HVD20DR 12,552
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Get Quote
    Chip One Stop SN65HVD20DR Cut Tape 2,450
    • 1 $3.59
    • 10 $2.5
    • 100 $2.25
    • 1000 $1.92
    • 10000 $1.86
    Buy Now
    Win Source Electronics SN65HVD20DR 11,700
    • 1 -
    • 10 -
    • 100 $0.6549
    • 1000 $0.5071
    • 10000 $0.5071
    Buy Now

    Texas Instruments SN65HVD20D

    IC TRANSCEIVER HALF 1/1 8SOIC
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey SN65HVD20D Tube 4,655 1
    • 1 $5.12
    • 10 $3.906
    • 100 $5.12
    • 1000 $3.00608
    • 10000 $2.84805
    Buy Now
    Win Source Electronics SN65HVD20D 11,800
    • 1 -
    • 10 -
    • 100 $0.6549
    • 1000 $0.5071
    • 10000 $0.5071
    Buy Now

    Texas Instruments SN65HVD78DGKR

    IC TRANSCEIVER HALF 1/1 8VSSOP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey SN65HVD78DGKR Digi-Reel 3,842 1
    • 1 $3.56
    • 10 $2.679
    • 100 $2.2171
    • 1000 $1.97522
    • 10000 $1.97522
    Buy Now
    SN65HVD78DGKR Cut Tape 3,842 1
    • 1 $3.56
    • 10 $2.679
    • 100 $2.2171
    • 1000 $1.97522
    • 10000 $1.97522
    Buy Now
    SN65HVD78DGKR Reel 2,500 2,500
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $1.87848
    Buy Now
    ComSIT USA SN65HVD78DGKR 42
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Get Quote
    Chip One Stop SN65HVD78DGKR Cut Tape 2,425
    • 1 $3.58
    • 10 $2.49
    • 100 $2.24
    • 1000 $1.82
    • 10000 $1.82
    Buy Now
    Win Source Electronics SN65HVD78DGKR 2,499
    • 1 -
    • 10 -
    • 100 $2.9612
    • 1000 $2.6549
    • 10000 $2.6549
    Buy Now

    Texas Instruments SN65HVD231DR

    IC TRANSCEIVER HALF 1/1 8SOIC
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey SN65HVD231DR Reel 2,500 2,500
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $1.12548
    Buy Now
    TME SN65HVD231DR 348 1
    • 1 $2.1
    • 10 $1.95
    • 100 $1.57
    • 1000 $1.22
    • 10000 $1.22
    Buy Now
    Ameya Holding Limited SN65HVD231DR 12,500
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Get Quote
    New Advantage Corporation SN65HVD231DR 234 1
    • 1 -
    • 10 -
    • 100 $2.46
    • 1000 $2.3
    • 10000 $2.3
    Buy Now
    Win Source Electronics SN65HVD231DR 42,390
    • 1 -
    • 10 -
    • 100 $0.6614
    • 1000 $0.5121
    • 10000 $0.5121
    Buy Now

    SN65HVD Datasheets (500)

    Part ECAD Model Manufacturer Description Curated Datasheet Type PDF
    SN65HVD01DRCR Texas Instruments Interface - Drivers, Receivers, Transceivers, Integrated Circuits (ICs), IC RS-485 TXRX HIGH OUT 10SON Original PDF
    SN65HVD01DRCR Texas Instruments SN65HVD01 - 3.3V RS-485 with Low Voltage (1.65-V) I/O Supply & Selectable Data Transmission Speeds 10-SON -40 to 125 Original PDF
    SN65HVD01DRCT Texas Instruments Interface - Drivers, Receivers, Transceivers, Integrated Circuits (ICs), IC TXRX RS-485 HIGH OUT 10SON Original PDF
    SN65HVD01DRCT Texas Instruments SN65HVD01 - SN65HVD01 Datasheet 10-SON Original PDF
    SN65HVD01-EVM Texas Instruments Evaluation and Demonstration Boards and Kits, Programmers, Development Systems, EVAL MODULE FOR SN65HVD01 Original PDF
    SN65HVD05 Texas Instruments HIGH OUTPUT RS-485 TRANSCEIVERS Original PDF
    SN65HVD05 Texas Instruments HIGH OUTPUT RS-485 TRANSCEIVERS Original PDF
    SN65HVD05D Texas Instruments High Output RS-485 Transceiver Original PDF
    SN65HVD05D Texas Instruments HIGH OUTPUT RS-485 TRANSCEIVERS Original PDF
    SN65HVD05D Texas Instruments High-Output RS-485 Transceiver 8-SOIC -40 to 85 Original PDF
    SN65HVD05D Texas Instruments Interface - Drivers, Receivers, Transceivers, Integrated Circuits (ICs), IC RS-485 TXRX HIGH OUT 8-SOIC Original PDF
    SN65HVD05D Texas Instruments SN65HVD05 - High-Output RS-485 Transceiver 8-SOIC -40 to 85 Original PDF
    SN65HVD05DG4 Texas Instruments High-Output RS-485 Transceiver 8-SOIC -40 to 85 Original PDF
    SN65HVD05DG4 Texas Instruments Interface - Drivers, Receivers, Transceivers, Integrated Circuits (ICs), IC RS485 TXRX 40MBPS 8-SOIC Original PDF
    SN65HVD05DG4 Texas Instruments SN65HVD05 - High-Output RS-485 Transceiver 8-SOIC -40 to 85 Original PDF
    SN65HVD05DR Texas Instruments High-Output RS-485 Transceiver 8-SOIC -40 to 85 Original PDF
    SN65HVD05DR Texas Instruments High Output RS-485 Transceiver Original PDF
    SN65HVD05DR Texas Instruments High-Output RS-485 Transceiver Original PDF
    SN65HVD05DR Texas Instruments Interface - Drivers, Receivers, Transceivers, Integrated Circuits (ICs), IC RS485 TXRX 40MBPS 8-SOIC Original PDF
    SN65HVD05DR Texas Instruments SN65HVD05 - High-Output RS-485 Transceiver 8-SOIC -40 to 85 Original PDF
    ...

    SN65HVD Datasheets Context Search

    Catalog Datasheet MFG & Type Document Tags PDF

    ti VP251

    Abstract: VP251
    Text: SN65HVD251 www.ti.com SLLS545C – NOVEMBER 2002 – REVISED SEPTEMBER 2005 CAN TRANSCEIVER FEATURES • • • • • • • • • • • 1 Drop-In Improved Replacement for the PCA82C250 and PCA82C251 Bus-Fault Protection of ±36 V Meets or Exceeds ISO 11898


    Original
    SN65HVD251 SLLS545C PCA82C250 PCA82C251 SN65HVD251 ti VP251 VP251 PDF

    Untitled

    Abstract: No abstract text available
    Text: SN65HVD50-SN65HVD59 www.ti.com SLLS666B – SEPTEMBER 2005 – REVISED MAY 2006 HIGH OUTPUT FULL-DUPLEX RS-485 DRIVERS AND RECEIVERS • • • • • • • The signaling rate of a line is the number of voltage transitions that are made per second expressed in the units


    Original
    SN65HVD50-SN65HVD59 SLLS666B RS-485 TIA/EIA-485-A RS-422 SN65HVD30-39 SN65HVD53, SN65HVD54, PDF

    vp485

    Abstract: VP485 IC 65HVD485 SN65HVD485E application notes ADM485 application note
    Text: SN65HVD485E DGK D P www.ti.com SLLS612C – JUNE 2004 – REVISED MARCH 2007 HALF-DUPLEX RS-485 TRANSCEIVER FEATURES • • • • • • • DESCRIPTION Bus-Pin ESD Protection Up to 15 kV 1/2 Unit Load–Up to 64 Nodes on a Bus Bus-Open-Failsafe Receiver


    Original
    SN65HVD485E SLLS612C RS-485 TIA/EIA-485A SN75176 SN65HVD485E 10Mbps vp485 VP485 IC 65HVD485 SN65HVD485E application notes ADM485 application note PDF

    65HVD61

    Abstract: A115-A C101 SN65HVD61
    Text: SN65HVD61 www.ti.com SLLS770C – JANUARY 2007 – REVISED MAY 2007 ControlNet TRANSCEIVER FEATURES APPLICATIONS • • • • • • • • • • • • • Compatible With the ControlNet Standard I/O Operates From 2.5-V to 5-V Supply Receiver thresholds within –120mV to 120mV


    Original
    SN65HVD61 SLLS770C 120mV 120mV SN65HVD61 65HVD61 A115-A C101 PDF

    SN65HVD1785

    Abstract: SN65HVD1786 SN65HVD1787 SN65HVD1791 HVD1793 SLLS872H
    Text: SN65HVD1785, SN65HVD1786 SN65HVD1787, SN65HVD1791 SN65HVD1792, SN65HVD1793 www.ti.com SLLS872H – JANUARY 2008 – REVISED FEBRUARY 2010 Fault-Protected RS-485 Transceivers With Extended Common-Mode Range Check for Samples: SN65HVD1785, SN65HVD1786, SN65HVD1787, SN65HVD1791, SN65HVD1792, SN65HVD1793


    Original
    SN65HVD1785, SN65HVD1786 SN65HVD1787, SN65HVD1791 SN65HVD1792, SN65HVD1793 SLLS872H RS-485 SN65HVD1786, SN65HVD1785 SN65HVD1786 SN65HVD1787 SN65HVD1791 HVD1793 SLLS872H PDF

    SN65HVD1780

    Abstract: SN65HVD1781 SN65HVD1782 SN65HVD1785 SN75176
    Text: SN65HVD1780 SN65HVD1781 SN65HVD1782 www.ti.com SLLS877F – DECEMBER 2007 – REVISED FEBRUARY 2010 Fault-Protected RS-485 Transceivers with 3.3-V to 5-V Operation Check for Samples: SN65HVD1780, SN65HVD1781, SN65HVD1782 FEATURES 1 • • • • • •


    Original
    SN65HVD1780 SN65HVD1781 SN65HVD1782 SLLS877F RS-485 SN65HVD1780, SN65HVD1781, HVD1780, HVD1782) SN65HVD1780 SN65HVD1781 SN65HVD1782 SN65HVD1785 SN75176 PDF

    SN65HVD379

    Abstract: SN65HVD379DR
    Text: SN65HVD379 www.ti.com . SLLS667B – FEBRUARY 2006 – REVISED JUNE 2008 3.3 V FULL-DUPLEX RS-485/RS-422 DRIVERS AND BALANCED RECEIVERS


    Original
    SN65HVD379 SLLS667B RS-485/RS-422 RS-422 RS-485 SN65HVD379 SN65HVD379DR PDF

    SLLS552E

    Abstract: SN65HVD20 SN65HVD21 SN65HVD22 SN65HVD23 SN65HVD24
    Text: SN65HVD20, SN65HVD21 SN65HVD22, SN65HVD23, SN65HVD24 www.ti.com SLLS552E – DECEMBER 2002 – REVISED MAY 2010 Extended Common-Mode RS-485 Transceivers Check for Samples: SN65HVD20, SN65HVD21, SN65HVD22, SN65HVD23, SN65HVD24 FEATURES 1 • • • • •


    Original
    SN65HVD20, SN65HVD21 SN65HVD22, SN65HVD23, SN65HVD24 SLLS552E RS-485 SN65HVD21, SLLS552E SN65HVD20 SN65HVD21 SN65HVD22 SN65HVD23 SN65HVD24 PDF

    Untitled

    Abstract: No abstract text available
    Text: SN65HVD230 SN65HVD231 SN65HVD232 www.ti.com SLOS346H – MARCH 2001 – REVISED JULY 2006 3.3-V CAN TRANSCEIVERS FEATURES APPLICATIONS • • • • • • • • • • • • • • • • • • • 1 Operates With a 3.3-V Supply Low Power Replacement for the PCA82C250


    Original
    SN65HVD230 SN65HVD231 SN65HVD232 SLOS346H PCA82C250 SN65HVD230 SN65HVD231 PDF

    Untitled

    Abstract: No abstract text available
    Text: SN65HVD10, SN65HVD10Q, SN75HVD10 SN65HVD11, SN65HVD11Q, SN75HVD11 SN65HVD12, SN75HVD12 www.ti.com SLLS505I – FEBRUARY 2002 – REVISED JULY 2006 3.3-V RS-485 TRANSCEIVERS FEATURES • • • • • • • • • • • Operates With a 3.3-V Supply Bus-Pin ESD Protection Exceeds 16 kV HBM


    Original
    SN65HVD10, SN65HVD10Q, SN75HVD10 SN65HVD11, SN65HVD11Q, SN75HVD11 SN65HVD12, SN75HVD12 SLLS505I RS-485 PDF

    Untitled

    Abstract: No abstract text available
    Text: SN65HVD30SN65HVD39 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
    SN65HVD30 SN65HVD39 SLLS665C RS-485 TIA/EIA-485-A RS-422 SN65HVD50-59 PDF

    TMS320Lx240x 3.3-V DSPs

    Abstract: TMS320Lx240x 230Q1
    Text: SN65HVD230Q-Q1 SN65HVD231Q-Q1 SN65HVD232Q-Q1 SGLS117C – JUNE 2001 – REVISED JUNE 2002 3.3-V CAN TRANSCEIVERS D Low-Current SN65HVD231Q Sleep Mode FEATURES D Qualification in Accordance With AEC-Q100† D Qualified for Automotive Applications D Customer-Specific Configuration Control Can


    Original
    SN65HVD230Q-Q1 SN65HVD231Q-Q1 SN65HVD232Q-Q1 SGLS117C SN65HVD231Q AEC-Q100 MIL-STD-883, PCA82C250 15-kV SN65HVD230Q TMS320Lx240x 3.3-V DSPs TMS320Lx240x 230Q1 PDF

    VP3082

    Abstract: SN75176 SN75176 circuit diagram SN75176 equivalent Dallas SN75176 SN75176 APPLICATION 65HVD3082 75HVD3082
    Text: SN65HVD3082E SN75HVD3082E www.ti.com SLLS562A – MARCH 2003 – REVISED – MARCH 2003 LOW-POWER RS-485 TRANSCEIVER FEATURES DESCRIPTION D Meets or Exceeds the Requirements of the TIA/EIA–485A Standard D Low Quiescent Power • < 0.3 mA Active Mode • 1 nA Shutdown Mode


    Original
    SN65HVD3082E SN75HVD3082E SLLS562A RS-485 TIA/EIA-485A SN75HVD3082ED SN75HVD3082EDR SN75HVD3082EP VP3082 SN75176 SN75176 circuit diagram SN75176 equivalent Dallas SN75176 SN75176 APPLICATION 65HVD3082 75HVD3082 PDF

    VP07

    Abstract: vn07
    Text: SN65HVD05, SN65HVD06, SN65HVD07 SN75HVD05, SN75HVD06, SN75HVD07 www.ti.com SLLS533B – MAY 2002 – REVISED MAY 2003 HIGH OUTPUT RS-485 TRANSCEIVERS FEATURES D Minimum Differential Output Voltage of 2.5 V D D D D D D D D Into a 54-Ω Load Open-Circuit, Short-Circuit, and Idle-Bus


    Original
    SN65HVD05, SN65HVD06, SN65HVD07 SN75HVD05, SN75HVD06, SN75HVD07 SLLS533B RS-485 TIA/EIA-485-A SN75176 VP07 vn07 PDF

    VP10Q

    Abstract: VP11Q vn11 VP12* texas SN75176 SN65HVD10 SN65HVD10Q SN65HVD11 SN65HVD11Q SN65HVD12
    Text: SN65HVD10SN65HVD10QSN75HVD10 SN65HVD11SN65HVD11QSN75HVD11 SN65HVD12SN75HVD12 www.ti.com SLLS505F − FEBRUARY 2002 − REVISED NOVEMBER 2003 3.3ĆV RSĆ485 TRANSCEIVERS FEATURES DESCRIPTION D Operates With a 3.3-V Supply The SN65HVD10, SN75HVD10,


    Original
    SN65HVD10 SN65HVD10Q SN75HVD10 SN65HVD11 SN65HVD11Q SN75HVD11 SN65HVD12 SN75HVD12 SLLS505F RS485 VP10Q VP11Q vn11 VP12* texas SN75176 PDF

    Untitled

    Abstract: No abstract text available
    Text: SN65HVD10ĆEP SN65HVD11ĆEP SN65HVD12ĆEP www.ti.com SGLS278A − DECEMBER 2004 − REVISED JANUARY 2005 3.3ĆV RSĆ485 TRANSCEIVERS FEATURES D Controlled Baseline D D D D D D D D D D D D D D D − One Assembly/Test Site, One Fabrication Site Extended Temperature Performance of Up to


    Original
    SN65HVD10EP SN65HVD11EP SN65HVD12EP SGLS278A RS485 TIA/EIA-485-A PDF

    Untitled

    Abstract: No abstract text available
    Text: User's Guide SLLU182 – October 2013 SN65HVD01-EVM Evaluation Module This user's guide describes the SN65HVD01-EVM Evaluation Module EVM . The EVM hardware gives designers the ability to evaluate the performance of the SN65HVD01 device to support the fast


    Original
    SLLU182 SN65HVD01-EVM SN65HVD01 PDF

    Untitled

    Abstract: No abstract text available
    Text: Product Folder Sample & Buy Support & Community Tools & Software Technical Documents SN65HVD70, SN65HVD71, SN65HVD73, SN65HVD74, SN65HVD76, SN65HVD77 SLLSEI9A – MAY 2014 – REVISED JUNE 2014 SN65HVD7x 3.3-V Full-Duplex RS-485 Transceivers With ±12-kV IEC ESD


    Original
    SN65HVD70, SN65HVD71, SN65HVD73, SN65HVD74, SN65HVD76, SN65HVD77 SN65HVD7x RS-485 12-kV IEC61000-4-2 PDF

    HVD178x

    Abstract: No abstract text available
    Text: RHL QFN D-8 (SOIC) SN65HVD30SN65HVD35 D-14 (SOIC) www.ti.com . SLLS665G – SEPTEMBER 2005 – REVISED DECEMBER 2008


    Original
    SN65HVD30 SN65HVD35 SLLS665G RS-485 HVD178x PDF

    vp1176

    Abstract: VN1176
    Text: SN65HVD1176 SN75HVD1176 www.ti.com SLLS563F – JULY 2003 – REVISED JUNE 2013 PROFIBUS RS-485 TRANSCEIVERS Check for Samples: SN65HVD1176, SN75HVD1176 FEATURES APPLICATIONS • • 1 • • • • • • • • • Optimized for PROFIBUS Networks – Signaling Rates Up to 40 Mbps


    Original
    SN65HVD1176 SN75HVD1176 SLLS563F RS-485 SN65HVD1176, TIA/EIA-485-A vp1176 VN1176 PDF

    Untitled

    Abstract: No abstract text available
    Text: RHL QFN D-8 (SOIC) SN65HVD30SN65HVD35 D-14 (SOIC) www.ti.com . SLLS665G – SEPTEMBER 2005 – REVISED DECEMBER 2008


    Original
    SN65HVD30 SN65HVD35 SLLS665G RS-485 PDF

    vp08

    Abstract: No abstract text available
    Text: SN75HVD08, SN65HVD08 www.ti.com SLLS550C – NOVEMBER 2002 – REVISED JULY 2006 WIDE SUPPLY RANGE RS-485 TRANSCEIVER FEATURES • • • • • • • Operates With a 3-V to 5.5-V Supply Consumes Less Than 90 mW Quiescent Power Open-Circuit, Short Circuit, and Idle-Bus


    Original
    SN75HVD08, SN65HVD08 SLLS550C RS-485 TIA/EIA-485 vp08 PDF

    Untitled

    Abstract: No abstract text available
    Text: SN65HVD11-HT www.ti.com . SLLS934C – NOVEMBER 2008 – REVISED MARCH 2009 3.3-V RS-485 TRANSCEIVER FEATURES 1 •


    Original
    SN65HVD11-HT SLLS934C RS-485 16-kV TIA/EIA-485-A SN75176 PDF

    SN55HVD251

    Abstract: J1939 PCA82C250 PCA82C251 SN65HVD251 SN65HVD251D SN65HVD251P nmea 2000 SN65HVD251-Q1
    Text: SN55HVD251 SN65HVD251 www.ti.com D DRJ SLLS545E – NOVEMBER 2002 – REVISED MARCH 2010 P INDUSTRIAL CAN TRANSCEIVER Check for Samples: SN55HVD251, SN65HVD251 FEATURES DESCRIPTION • The HVD251 is intended for use in applications employing the Controller Area Network CAN serial


    Original
    SN55HVD251 SN65HVD251 SLLS545E SN55HVD251, HVD251 PCA82C250 PCA82C251 SN55HVD251 J1939 PCA82C251 SN65HVD251 SN65HVD251D SN65HVD251P nmea 2000 SN65HVD251-Q1 PDF