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

    L051 Search Results

    L051 Result Highlights (5)

    Part ECAD Model Manufacturer Description Download Buy
    TL051ACP Texas Instruments Enhanced-JFET Precision Operational Amplifier 8-PDIP 0 to 70 Visit Texas Instruments Buy
    TL051CP Texas Instruments Enhanced JFET Precision Operational Amplifier 8-PDIP 0 to 70 Visit Texas Instruments Buy
    TL051ACD Texas Instruments Enhanced-JFET Precision Operational Amplifier 8-SOIC 0 to 70 Visit Texas Instruments Buy
    TL051CDR Texas Instruments Enhanced JFET Precision Operational Amplifier 8-SOIC 0 to 70 Visit Texas Instruments Buy
    TL051CD Texas Instruments Enhanced JFET Precision Operational Amplifier 8-SOIC 0 to 70 Visit Texas Instruments Buy
    SF Impression Pixel

    L051 Price and Stock

    Susumu Co Ltd RL0510S-R51-F

    RES 0.51 OHM 1% 1/6W 0402
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey RL0510S-R51-F Digi-Reel 32,612 1
    • 1 $0.22
    • 10 $0.157
    • 100 $0.1106
    • 1000 $0.07512
    • 10000 $0.05554
    Buy Now
    RL0510S-R51-F Cut Tape 32,612 1
    • 1 $0.22
    • 10 $0.157
    • 100 $0.1106
    • 1000 $0.07512
    • 10000 $0.05554
    Buy Now
    RL0510S-R51-F Reel 20,000 10,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $0.05119
    Buy Now

    Susumu Co Ltd RL0510S-2R2-F

    RES SMD 2.2 OHM 1% 1/6W 0402
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey RL0510S-2R2-F Reel 20,000 10,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $0.05267
    Buy Now

    STMicroelectronics STM32L051T8Y6TR

    IC MCU 32BIT 64KB FLASH 36WLCSP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey STM32L051T8Y6TR Digi-Reel 14,529 1
    • 1 $3.77
    • 10 $2.842
    • 100 $2.3561
    • 1000 $2.10154
    • 10000 $2.03803
    Buy Now
    STM32L051T8Y6TR Cut Tape 14,529 1
    • 1 $3.77
    • 10 $2.842
    • 100 $2.3561
    • 1000 $2.10154
    • 10000 $2.03803
    Buy Now
    Avnet Americas STM32L051T8Y6TR Reel 15 Weeks 5,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $1.50817
    Buy Now
    Avnet Silica STM32L051T8Y6TR 5,000 16 Weeks 5,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Buy Now
    EBV Elektronik STM32L051T8Y6TR 16 Weeks 5,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Buy Now

    STMicroelectronics STM32L051C8T6

    IC MCU 32BIT 64KB FLASH 48LQFP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey STM32L051C8T6 Tray 11,879 1
    • 1 $2.56
    • 10 $1.923
    • 100 $1.61088
    • 1000 $1.55864
    • 10000 $1.55864
    Buy Now
    Avnet Americas STM32L051C8T6 Tray 1,125 15 Weeks 250
    • 1 $1.559
    • 10 $1.559
    • 100 $1.559
    • 1000 $1.559
    • 10000 $1.559
    Buy Now
    Newark STM32L051C8T6 Bulk 823 1
    • 1 $2.01
    • 10 $2.01
    • 100 $2.01
    • 1000 $2.01
    • 10000 $2.01
    Buy Now
    ComSIT USA STM32L051C8T6 1,167
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Get Quote
    EBV Elektronik STM32L051C8T6 750 16 Weeks 250
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Buy Now
    New Advantage Corporation STM32L051C8T6 8,797 1
    • 1 $3.5
    • 10 $3.5
    • 100 $2.99
    • 1000 $2.49
    • 10000 $2.49
    Buy Now
    Win Source Electronics STM32L051C8T6 45,000
    • 1 -
    • 10 -
    • 100 $1.1393
    • 1000 $0.9429
    • 10000 $0.9429
    Buy Now

    Diodes Incorporated APX803L05-16SA-7

    IC SUPERVISOR 1 CHANNEL SOT23
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey APX803L05-16SA-7 Digi-Reel 6,918 1
    • 1 $0.54
    • 10 $0.332
    • 100 $0.2113
    • 1000 $0.14367
    • 10000 $0.14367
    Buy Now
    APX803L05-16SA-7 Cut Tape 6,918 1
    • 1 $0.54
    • 10 $0.332
    • 100 $0.2113
    • 1000 $0.14367
    • 10000 $0.14367
    Buy Now
    APX803L05-16SA-7 Reel 6,000 3,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $0.12315
    Buy Now
    New Advantage Corporation APX803L05-16SA-7 6,000 1
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $0.1099
    Buy Now

    L051 Datasheets (9)

    Part ECAD Model Manufacturer Description Curated Datasheet Type PDF
    L051103FAP Emerson & Cuming Resistor: Thick Film: 10K: 1%: BUS: 5SIP: Ammo Pack Scan PDF
    L051103FMX Emerson & Cuming Resistor: Thick Film: 10K: 1%: BUS: 5SIP: Tube Scan PDF
    L051103GAP Emerson & Cuming Resistor: Thick Film: 10K: 2%: BUS: 5SIP: Ammo Pack Scan PDF
    L051103GMX Emerson & Cuming Resistor: Thick Film: 10K: 2%: BUS: 5SIP: Tube Scan PDF
    L051103JMX Emerson & Cuming Resistor: Thick Film: 10K: 5%: BUS: 5SIP: Tube Scan PDF
    L051104FAP Emerson & Cuming Resistor: Thick Film: 100K: 1%: BUS: 5SIP: Ammo Pack Scan PDF
    L051104FMX Emerson & Cuming Resistor: Thick Film: 100K: 1%: BUS: 5SIP: Tube Scan PDF
    L051104GAP Emerson & Cuming Resistor: Thick Film: 100K: 2%: BUS: 5SIP: Ammo Pack Scan PDF
    L051104GMX Emerson & Cuming Resistor: Thick Film: 100K: 2%: BUS: 5SIP: Tube Scan PDF

    L051 Datasheets Context Search

    Catalog Datasheet MFG & Type PDF Document Tags

    L0512

    Abstract: l0524 CXA-L0505-NJL CXA-L0512-NJL CXA-L0524-NJL CXA-L05-NJL SM02 EA415
    Text: 1/2 001-01 / 20030919 / ea415_cxal05.fm CXA Series DC to AC Inverters CXA-L0505-NJL/-L0512-NJL/-L0524-NJL Connector type, Non-dimming, 3.5W, For 1 Bulb Power Supplies FEATURES • The CXA-L05-NJL series inverters support a wide range of CCFL devices and are characterized by highly stable output current.


    Original
    PDF cxal05 CXA-L0505-NJL/-L0512-NJL/-L0524-NJL CXA-L05-NJL 95max. CXA-L0512-NJL CXA-L0524-NJL L0512 l0524 CXA-L0505-NJL CXA-L0512-NJL CXA-L0524-NJL SM02 EA415

    CXA-L0505-NJL

    Abstract: 94v-0 cem-3 CXA-L0512-NJL CXA-L0524-NJL SM02 L0524 L0512
    Text: 1/2 DC-ACインバータ コネクタタイプ・非調光・3.5W 1出力 RoHS 指令対応製品 CXAシリーズ CXA-L0505-NJL/-L0512-NJL/-L0524-NJL 特長 温度・湿度範囲 ●定電流出力で広範囲の冷陰極管(CCFL)に対応できます。


    Original
    PDF CXACXA-L0505-NJL/-L0512-NJL/-L0524-NJL 95max. CXA-L0505-NJL CXA-L0512-NJL CXA-L0524-NJL cxal05 CXA-L0505-NJL 94v-0 cem-3 CXA-L0512-NJL CXA-L0524-NJL SM02 L0524 L0512

    l0512

    Abstract: CXA-L0524-NJL L0524 tdk cxa ccfl inverter tdk inverter tdk tdk inverter A415 CXA-L0505-NJL CXA-L0512-NJL
    Text: A415_CXAL05 1/2 TDK DC-AC Inverter Connector type, Non-dimming, 3.5W, For 1 bulb CXA-L0505-NJL/-L0512-NJL/-L0524-NJL FEATURES • The CXA-L05-NJL series inverters support a wide range of CCFL devices and are characterized by highly stable output current.


    Original
    PDF CXAL05 CXA-L0505-NJL/-L0512-NJL/-L0524-NJL CXA-L05-NJL 95max. CXA-L0512-NJL CXA-L0524-NJL l0512 CXA-L0524-NJL L0524 tdk cxa ccfl inverter tdk inverter tdk tdk inverter A415 CXA-L0505-NJL CXA-L0512-NJL

    l0512

    Abstract: 24v push pull output CXA-L0505-NJL UL94V-0 inverter CXA-L0512-NJL CXA-L0524-NJL CXA-L05-NJL SM02
    Text: 1/2 DC to AC Inverters Connector type, Non-dimming, 3.5W, for 1 Bulb Conformity to RoHS Directive CXA Series CXA-L0505-NJL/-L0512-NJL/-L0524-NJL FEATURES • The CXA-L05-NJL series inverters support a wide range of CCFL devices and are characterized by highly stable output current.


    Original
    PDF CXA-L0505-NJL/-L0512-NJL/-L0524-NJL CXA-L05-NJL 95max. CXA-L0512-NJL CXA-L0524-NJL cxal05 l0512 24v push pull output CXA-L0505-NJL UL94V-0 inverter CXA-L0512-NJL CXA-L0524-NJL SM02

    CXA-L0512-NJL

    Abstract: ETL_CXA_L0512_NJL
    Text: 1 Non-dimming/Connector Type CXA-L0512-NJL • Features ■ Applications ●1 output ●UL60950 approved ●Applicable panel size*: 3 to 15 inches ●In the high-voltage generator a terminal and a pattern , an anti-dust measure by silicone application is taken.


    Original
    PDF CXA-L0512-NJL UL60950 CXA-L0512-NJL UL94V0t BHR03VS1 750Vrms 750Vrms ETL_CXA_L0512_NJL

    L0512

    Abstract: CXA-L0505-NJL L0505 CXA-L0512-NJL CXA-L0524-NJL CXA-L05-NJL SM02
    Text: 1/2 001-01 / 20030826 / ea415_cxal05 Power Supplies CXA Series CXA-L0505-NJL/-L0512-NJL/-L0524-NJL DC to AC Inverters Connector type, Non-dimming, 3.5W, For 1 Bulb FEATURES • The CXA-L05-NJL series inverters support a wide range of CCFL devices and are characterized by highly stable output


    Original
    PDF cxal05 CXA-L0505-NJL/-L0512-NJL/-L0524-NJL CXA-L05-NJL 95max. CXA-L0512-NJL CXA-L0524-NJL L0512 CXA-L0505-NJL L0505 CXA-L0512-NJL CXA-L0524-NJL SM02

    l078b

    Abstract: marking l078b 4925 B transistor LP8340CDT-5.0 LP8340CLD-ADJ LP8340 LP8340C LP8340CLDX-ADJ LP8340I L082
    Text: LP8340 Low Dropout, Low IQ, 1.0A CMOS Linear Regulator General Description Features The LP8340 low-dropout CMOS linear regulator is available in 5V, 3.3V, 2.5V, 1.8V and adjustable output versions. Packaged in the 6ld LLP package and 3ld DPAK. The LP8340 can


    Original
    PDF LP8340 LP8340 420mV 540mV 670mV 680mV 800mA l078b marking l078b 4925 B transistor LP8340CDT-5.0 LP8340CLD-ADJ LP8340C LP8340CLDX-ADJ LP8340I L082

    L0512

    Abstract: LCD COLOR DISPLAY MODULE TFT BHR-03VS-1 CXA-L10A CXA-L10L DF9B-31P-1V DF9B-31S-1V SM02 1980B hosiden
    Text: SPECIFICATIONS TITLE : 6,4" TFT COLOR MODULE NUMBER : HLD 0604 HIBRITE REV.A PAGE 1 DATA DISPLAY AG HLD 0604 HIBRITE 6.4 INCH ACTIVE MATRIX COLOR TFT DISPLAY 640 x 480 DOTS DATA DISPLAY AG Industriestr. 1 82110 Germering MAY 2001 HTTP://WWW.DATADISPLAY.DE


    Original
    PDF

    C4436

    Abstract: BL-C2121 BL-C2132 BL-C3121 BL-C4521 BL-C4532 BL-C5121 BL-C5132 BL-Sxx36
    Text: STANDARD LED LAMPS CYLINDRICAL TYPES Absolute Maximum Ratings Chip Package Part No. Material/Emitted Color Peak Wave Length λP Lens Appearance Δλ Pd If Peak (nm) (mw) (mA) (mA) Electro-optical Data(At 20mA) Viewing Vf Iv Angle Drawing (V) (mcd) 2θ 1⁄2


    Original
    PDF BL-C5121 BL-C4521 BL-C2121 BL-C3121 BL-C5132 BL-C4532 BL-C2132 BL-CX1132 BL-C3132 L-044 C4436 BL-C2121 BL-C2132 BL-C3121 BL-C4521 BL-C4532 BL-C5121 BL-C5132 BL-Sxx36

    l0616

    Abstract: UL486c L0616R16TB L0618 1601628-1 L061D18TB P125 L0456R16B UL 486C aluminum 2219 alloy
    Text: Catalog 82221 Magnet Wire Terminals and Termination Systems Revised 10-02 MTM Crimpband Splices Product Facts • Made from a continuous coil of “Ribbon Connector” material ■ Magnet wires MTM Crimpband splices have machine-piercing serrations designed for displacing


    Original
    PDF

    laptop repairing guide

    Abstract: outside plant access cabinet NE843 troubleshooting and repair lcd monitors H2007001 NE050AC48 airpax frequency voltmeter Airpax LMLK airpax motor 24V NE030DC48
    Text: H2007001 G11 Series Infinity D Power System with +24 Volt Rectifiers, -48 Volt Converters, and Pulsar Controller Installation Guide Installation Guide LineagePower.com Comcode CC848845223 Issue 2.0 June 2009 Infinity D Power System Installation Guide: +24V Systems


    Original
    PDF H2007001 CC848845223 H2007001 laptop repairing guide outside plant access cabinet NE843 troubleshooting and repair lcd monitors NE050AC48 airpax frequency voltmeter Airpax LMLK airpax motor 24V NE030DC48

    b17 c144

    Abstract: BUF C147 c046 ea18 108 to 174 mhz radio receiver idc139
    Text: CXD2951GA-4 Single Chip GPS LSI Description The CXD2951GA-4 is a dedicated single chip LSI for the GPS Global Positioning System , satellitebased location measurement system. This LSI enables the configuration of a single chip system providing a cost-effective, low-power solution.


    Original
    PDF CXD2951GA-4 CXD2951GA-4 12-channel 176PIN 10MAX LFLGA-176P-052 P-LFLGA176-12x12-0 b17 c144 BUF C147 c046 ea18 108 to 174 mhz radio receiver idc139

    B1137

    Abstract: BL-B3137M-1 L0528 BL-B1137B BL-B2137B BL-B2137D BL-B3137B BL-B3137D BL-B3337D BL-B4137B
    Text: SINCE 1981 Absolute Maximum Ratings Chip Package Part No. T1 3/4 Narrow Viewing Angle 1.0" Lead 5.2 T1 3/4 Flangeless 1.0" Lead 5.0 T1 3/4 Flangeless 1.0" Lead 5.2 T1 3/4 Narrow Viewing Angle 1.0" Lead 5.0 T1 3/4 1.0" Lead 5.0 T1 3/4 Flangeless 1.0" Lead 4.8


    Original
    PDF BL-B1137B BL-B5137B BL-B4537B BL-B2137B BL-B3137B BL-B4137B BL-B9137B BL-B4537D BL-B2137D BL-B3137D B1137 BL-B3137M-1 L0528 BL-B1137B BL-B2137B BL-B2137D BL-B3137B BL-B3137D BL-B3337D BL-B4137B

    32.768KHz TCXO, 0.2PPM

    Abstract: C143 T transistor BUF C145 C143 E S S transistor ea18 r028 CXD2951GA-4 800MHz CDMA Handset Circuit Diagram C082 c092 diode
    Text: Single Chip GPS LSI CXD2951GA-4 Description The CXD2951GA-4 is a dedicated single chip LSI for the GPS Global Positioning System , satellite-based location measurement system. This LSI enables the configuration of a single chip system providing a costeffective, low-power solution.


    Original
    PDF CXD2951GA-4 CXD2951GA-4 12-channel 176PIN 10MAX LFLGA-176P-052 P-LFLGA176-12x12-0 32.768KHz TCXO, 0.2PPM C143 T transistor BUF C145 C143 E S S transistor ea18 r028 800MHz CDMA Handset Circuit Diagram C082 c092 diode

    nec tokin oe 128

    Abstract: MS-17171 MCP51M NEC Tokin od 108 c113 pc 100 3p3 nvidia c51mv PC017 MS17171 Athlon Neo X2 CM1616
    Text: 5 4 3 MS-17171 Ver : 2.0 2 Processor 1 DDR2 Sodimm 0 AMD S1 638 pin uFCPGA 638 socket Battery Charger Page 6 DDR2 400 / 533 / 667 MHz Page 31 DDR2 Sodimm 1 Page 2,3,4,5 Battery select Page 6 Page 32 D D 16 X 16 Bit HyperTransport Link DRAM Power Page 33 North Bridge


    Original
    PDF MS-17171 C51MV RTL8111B 6855B Sou110 E43-1204002-H29 E2P-7170111-G40 E26-1004050-SA6 E26-1035130-G40 E2P-6322713-G40 nec tokin oe 128 MCP51M NEC Tokin od 108 c113 pc 100 3p3 nvidia c51mv PC017 MS17171 Athlon Neo X2 CM1616

    32.768KHz TCXO, 0.2PPM

    Abstract: BUF C145 C082 r057 CXD2951GH ED13 ED17 NMEA-0183 assisted-gps 1575.42Mhz oscillator
    Text: CXD2951GH Single Chip GPS LSI Description The CXD2951GH is a dedicated single chip LSI for the GPS Global Positioning System , satellite-based location measurement system. This LSI enables the configuration of a single chip system providing a cost-effective, low-power solution.


    Original
    PDF CXD2951GH CXD2951GH 12-channel TP001 176PIN TFLGA-176P-051 P-TFLGA176-13X13-0 32.768KHz TCXO, 0.2PPM BUF C145 C082 r057 ED13 ED17 NMEA-0183 assisted-gps 1575.42Mhz oscillator

    C4154

    Abstract: c3148 B1137 2WB77016 DSP DOS ec a063 PD77116 MDLDL intertools uPD77113
    Text: お客様各位 カタログ等資料中の旧社名の扱いについて 2010 年 4 月 1 日を以って NEC エレクトロニクス株式会社及び株式会社ルネサステクノロジ が合併し両社の全ての事業が当社に承継されております。従いまして、本資料中には旧社


    Original
    PDF WB77016 PD77015 PD77016 PD77017 PD77018 PD77018A PD77019 PD77110 PD77111 PD77112 C4154 c3148 B1137 2WB77016 DSP DOS ec a063 PD77116 MDLDL intertools uPD77113

    L041B

    Abstract: l043b L051B L042B L044B L078B L079B LP8340 LP8340C LP8340CLD-ADJ
    Text: General Description Features The LP8340 low-dropout CMOS linear regulator is available in 5V, 3.3V, 2.5V, 1.8V and adjustable output versions. Packaged in the 6ld LLP package and 3ld DPAK. The LP8340 can deliver up to 1.0A output current. Typical dropout voltage is 420mV at 1.0A for the 5.0V version, 540mV at 1.0A for the 3.3V version, 670mV at 1.0A for


    Original
    PDF LP8340 420mV 540mV 670mV 680mV 800mA LP8340-5 L041B l043b L051B L042B L044B L078B L079B LP8340C LP8340CLD-ADJ

    L023

    Abstract: IC020 l035 IF2G BUF C145 C082 l004 r057 CXD2951GA-2 EA11
    Text: CXD2951GA-2 Preliminary Single Chip GPS LSI Description The CXD2951GA-2 is a dedicated single chip LSI for the GPS Global Positioning System , satellitebased location measurement system. This LSI enables the configuration of a single chip system providing a cost-effective, low-power solution.


    Original
    PDF CXD2951GA-2 CXD2951GA-2 12-channel 176PIN 10MAX LFLGA-176P-052 P-LFLGA176-12x12-0 L023 IC020 l035 IF2G BUF C145 C082 l004 r057 EA11

    CXA1372AQ

    Abstract: CXA1372 CXD2510Q DA10 DA11
    Text: CXD2510Q CD Digital Signal Processor Description The CXD2510Q is a digital signal processor LSI for CD players and is equipped with the following functions. • Wide frame jitter margin ±28 frames due to a builtin 32K RAM • Bit clock, which strobes the EFM signal, is


    Original
    PDF CXD2510Q CXD2510Q 16-bit 80PIN QFP-80P-L051 QFP080-P-1420-AH CXA1372AQ CXA1372 DA10 DA11

    B1137

    Abstract: BL-B3137M-1 BL-B1138 BL-B2438 BL-B1137B BL-B2137B BL-B2137D BL-B3137B BL-B3137D BL-B3337D
    Text: Absolute Maximum Ratings Chip Package Part No. T1 3/4 Narrow Viewing Angle 1.0" Lead 5.2 T1 3/4 Flangeless 1.0" Lead 5.0 T1 3/4 Flangeless 1.0" Lead 5.2 T1 3/4 Narrow Viewing Angle 1.0" Lead 5.0 T1 3/4 1.0" Lead 5.0 T1 3/4 Flangeless 1.0" Lead 4.8 1.0"Lead


    Original
    PDF BL-B1137B BL-B5137B BL-B4537B BL-B2137B BL-B3137B BL-B4137B BL-B9137B BL-B4537D BL-B2137D BL-B3137D B1137 BL-B3137M-1 BL-B1138 BL-B2438 BL-B1137B BL-B2137B BL-B2137D BL-B3137B BL-B3137D BL-B3337D

    MTD-0218

    Abstract: M331
    Text: f l E T E L I C S CORP SbE D L05135g DDDPgOfl 1QT • MET metelics BROADBAND DETECTORS CORPORATION T-oi-on Metelics introduces a line of broadband detectors that offer high sensitivity and low VSWR. The detec­ tors are available in several standard and special


    OCR Scan
    PDF L05135g M33-1, MTD-0208 MTD-0818 MTD-0218 MZD-0208 MZD-0818 MZD-0218 M33-1 M331

    Untitled

    Abstract: No abstract text available
    Text: CUSTOMER DRAWING AMP PART n 'l051109- '1 SHEET 1 OF 1 REV A


    OCR Scan
    PDF l051109-

    am29203 "evaluation board"

    Abstract: L0512 MV8000 TTL catalog CL1101 8038 ic tester circuit diagram tl 2345 ml gcr encoder parallel bus arbitration 30GRAMMABLE
    Text: PROGRAMMABLE ’ROGRAMMABLE 30GRAMMABLE L DGRAMMABLE LG 3RAMMABLE LOG ÏRAMMABLE LOGI ÌAMMABLE LÄGIC a Advanced Micro Devices Programmable Array Logic Handbook Prepared by the Product Planning and Applications Staff at Advanced M icro Devices, Inc. Brad Kitson, Editor


    OCR Scan
    PDF 30GRAMMABLE I-20090 S-172 am29203 "evaluation board" L0512 MV8000 TTL catalog CL1101 8038 ic tester circuit diagram tl 2345 ml gcr encoder parallel bus arbitration