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

    TC74VHC245F Search Results

    SF Impression Pixel

    TC74VHC245F Price and Stock

    Toshiba America Electronic Components TC74VHC245FTELM

    IC TXRX NON-INVERT 5.5V 20TSSOP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey TC74VHC245FTELM Reel
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Buy Now
    TC74VHC245FTELM Cut Tape
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Buy Now
    TC74VHC245FTELM Digi-Reel 1
    • 1 $0.59
    • 10 $0.59
    • 100 $0.59
    • 1000 $0.59
    • 10000 $0.59
    		Buy Now

    Toshiba America Electronic Components TC74VHC245F(EL,K,F

    IC TXRX NON-INVERT 5.5V 20SOP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey TC74VHC245F(EL,K,F Digi-Reel 1
    • 1 $1.07
    • 10 $1.07
    • 100 $1.07
    • 1000 $1.07
    • 10000 $1.07
    		Buy Now
    TC74VHC245F(EL,K,F Cut Tape 1
    • 1 $1.07
    • 10 $1.07
    • 100 $1.07
    • 1000 $1.07
    • 10000 $1.07
    		Buy Now
    TC74VHC245F(EL,K,F Reel 2,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $0.21159
    		Buy Now
    Mouser Electronics TC74VHC245F(EL,K,F 1,824
    • 1 $1.11
    • 10 $1.11
    • 100 $1.1
    • 1000 $0.887
    • 10000 $0.887
    		Buy Now
    Verical TC74VHC245F(EL,K,F 1,710 28
    • 1 -
    • 10 -
    • 100 $0.7913
    • 1000 $0.6288
    • 10000 $0.6288
    		Buy Now
    TC74VHC245F(EL,K,F 365 164
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.4781
    • 10000 $0.4781
    		Buy Now
    Quest Components TC74VHC245F(EL,K,F 309
    • 1 $1.37
    • 10 $1.37
    • 100 $0.685
    • 1000 $0.548
    • 10000 $0.548
    		Buy Now
    Chip1Stop TC74VHC245F(EL,K,F Cut Tape 1,710
    • 1 -
    • 10 $0.895
    • 100 $0.633
    • 1000 $0.503
    • 10000 $0.503
    		Buy Now

    Toshiba America Electronic Components TC74VHC245FK(EL,K)

    IC TXRX NON-INVERT 5.5V 20VSSOP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey TC74VHC245FK(EL,K) Cut Tape 1
    • 1 $1.07
    • 10 $1.07
    • 100 $1.07
    • 1000 $1.07
    • 10000 $1.07
    		Buy Now
    TC74VHC245FK(EL,K) Digi-Reel 1
    • 1 $1.07
    • 10 $1.07
    • 100 $1.07
    • 1000 $1.07
    • 10000 $1.07
    		Buy Now
    TC74VHC245FK(EL,K) Reel 2,500
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $0.2499
    		Buy Now
    Mouser Electronics TC74VHC245FK(EL,K) 1,322
    • 1 $1.1
    • 10 $1.1
    • 100 $0.921
    • 1000 $0.584
    • 10000 $0.206
    		Buy Now
    Verical TC74VHC245FK(EL,K) 2,159 48
    • 1 -
    • 10 -
    • 100 $0.6325
    • 1000 $0.1563
    • 10000 $0.1563
    		Buy Now
    Chip1Stop TC74VHC245FK(EL,K) Cut Tape 2,159
    • 1 -
    • 10 $0.332
    • 100 $0.322
    • 1000 $0.125
    • 10000 $0.125
    		Buy Now

    Toshiba America Electronic Components TC74VHC245FT(EL)

    Bus XCVR Single 8-CH 3-ST 20-Pin TSSOP T/R - Bulk (Alt: TC74VHC245FT-EL)
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    Avnet Americas TC74VHC245FT(EL) Bulk 1
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote
    Quest Components TC74VHC245FT(EL) 6,140
    • 1 $1.82
    • 10 $1.82
    • 100 $1.82
    • 1000 $1.82
    • 10000 $0.546
    		Buy Now

    Toshiba America Electronic Components TC74VHC245FT

    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    Bristol Electronics TC74VHC245FT 2,972
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote
    TC74VHC245FT 1,928
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote
    Quest Components TC74VHC245FT 1,542
    • 1 $0.66
    • 10 $0.66
    • 100 $0.66
    • 1000 $0.264
    • 10000 $0.264
    		Buy Now
    TC74VHC245FT 777
    • 1 $0.55
    • 10 $0.55
    • 100 $0.55
    • 1000 $0.22
    • 10000 $0.22
    		Buy Now
    TC74VHC245FT 15
    • 1 $1
    • 10 $0.8
    • 100 $0.8
    • 1000 $0.8
    • 10000 $0.8
    		Buy Now
    Find more TC74VHC245F price and stock on Findchips.com

    TC74VHC245F Datasheets (20)

    Part ECAD Model Manufacturer Description Curated Datasheet Type PDF
    TC74VHC245F Toshiba General Purpose Logic ICs Original PDF
    TC74VHC245F Toshiba Japanese - General Purpose Logic ICs Original PDF
    TC74VHC245F Toshiba Octal Bus Transceiver Scan PDF
    TC74VHC245F Toshiba OCTAL BUS TRANSCEIVER Scan PDF
    TC74VHC245F Toshiba Octal Bus-Line Transceiver Scan PDF
    TC74VHC245F(EL,K,F Toshiba Semiconductor and Storage Integrated Circuits (ICs) - Logic - Buffers, Drivers, Receivers, Transceivers - IC TXRX NON-INVERT 5.5V 20SOP Original PDF
    TC74VHC245FK Toshiba Octal Bus Transceiver Original PDF
    TC74VHC245FK(EL,K) Toshiba Semiconductor and Storage Integrated Circuits (ICs) - Logic - Buffers, Drivers, Receivers, Transceivers - IC TXRX NON-INVERT 5.5V 20VSSOP Original PDF
    TC74VHC245FS Toshiba Octal Bus Transceiver Scan PDF
    TC74VHC245FT Toshiba General Purpose Logic ICs Original PDF
    TC74VHC245FT Toshiba Japanese - General Purpose Logic ICs Original PDF
    TC74VHC245FT Toshiba Octal Bus Transceiver Scan PDF
    TC74VHC245FT Toshiba OCTAL BUS TRANSCEIVER Scan PDF
    TC74VHC245FT Toshiba Octal Bus-Line Transceiver Scan PDF
    TC74VHC245FT-EL Toshiba TC74VHC245 - Bus XCVR Single 8-CH 3-ST 20-Pin TSSOP T/R Original PDF
    TC74VHC245FT(EL,M) Toshiba Logic - Buffers, Drivers, Receivers, Transceivers, Integrated Circuits (ICs), IC BUS TRANSCVR 8BIT 20TSSOP Original PDF
    TC74VHC245FTELM Toshiba TC74VHC245 - Bus XCVR Single 8-CH 3-ST 20-Pin TSSOP T/R Original PDF
    TC74VHC245FW Toshiba Octal Bus Transceiver Scan PDF
    TC74VHC245FW Toshiba Octal Bus-Line Transceiver Scan PDF
    TC74VHC245FW Toshiba OCTAL BUS TRANSCEIVER Scan PDF

    TC74VHC245F Datasheets Context Search

    Catalog Datasheet MFG & Type PDF Document Tags

    74ALS245

    Abstract: TC74VHC245 TC74VHC245F TC74VHC245FK TC74VHC245FT
    Text: TC74VHC245F/FT/FK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74VHC245F,TC74VHC245FT,TC74VHC245FK Octal Bus Transceiver The TC74VHC245 is an advanced high speed CMOS OCTAL BUS TRANSCEIVER fabricated with silicon gate C2MOS technology. It achieves the high speed operation similar to equivalent


    Original     		PDF TC74VHC245F/FT/FK TC74VHC245F TC74VHC245FT TC74VHC245FK TC74VHC245 74ALS245 TC74VHC245FK

    Untitled

    Abstract: No abstract text available
    Text: Reliability Tests Report Product Name: TC74VHC245FK Package Name: US20 1. Thermal tests Test Item Heat resistance Reflow Heat resistance (Iron) Temperature cycling - Test Condition Peak : 260 deg.C(a moment) Reflow zone : 230 deg.C 30 to 50 s Preheat : 180 to 190 deg.C , 60 to 120 s


    Original     		PDF TC74VHC245FK

    Untitled

    Abstract: No abstract text available
    Text: Reliability Tests Report Product Name: TC74VHC245FT Package Name: TSSOP20 1. Thermal tests Test Item Heat resistance Reflow Heat resistance (Iron) Temperature cycling - Test Condition Peak : 260 deg.C(a moment) Reflow zone : 230 deg.C 30 to 50 s Preheat : 180 to 190 deg.C , 60 to 120 s


    Original     		PDF TC74VHC245FT TSSOP20

    Untitled

    Abstract: No abstract text available
    Text: TC74VHC245F/FT/FK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74VHC245F,TC74VHC245FT,TC74VHC245FK Octal Bus Transceiver The TC74VHC245 is an advanced high speed CMOS OCTAL BUS TRANSCEIVER fabricated with silicon gate C2MOS technology. It achieves the high speed operation similar to equivalent


    Original     		PDF TC74VHC245F/FT/FK TC74VHC245F TC74VHC245FT TC74VHC245FK TC74VHC245

    Untitled

    Abstract: No abstract text available
    Text: TC74VHC245F/FW/FT/FK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic Octal Bus Transceiver The TC74VHC245 is an advanced high speed CMOS OCTAL BUS TRANSCEIVER fabricated with silicon gate C2MOS


    Original     		PDF TC74VHC245F/FW/FT/FK TC74VHC245F TC74VHC245FW TC74VHC245FT TC74VHC245FK TC74VHC245

    Untitled

    Abstract: No abstract text available
    Text: TC74VHC245F/FW/FT/FK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic Octal Bus Transceiver The TC74VHC245 is an advanced high speed CMOS OCTAL BUS TRANSCEIVER fabricated with silicon gate C2MOS


    Original     		PDF TC74VHC245F/FW/FT/FK TC74VHC245F TC74VHC245FW TC74VHC245FT TC74VHC245FK TC74VHC245

    Untitled

    Abstract: No abstract text available
    Text: Reliability Tests Report Product Name: TC74VHC245F Package Name: SOP20 1. Thermal tests Test Item Heat resistance Reflow Heat resistance (Flow) Heat resistance (Iron) Temperature cycling Test Condition Peak : 260 deg.C(a moment) Reflow zone : 230 deg.C 30 to 50 s


    Original     		PDF TC74VHC245F

    Untitled

    Abstract: No abstract text available
    Text: TC74VHC245F/FW/FT/FK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic Octal Bus Transceiver The TC74VHC245 is an advanced high speed CMOS OCTAL BUS TRANSCEIVER fabricated with silicon gate C2MOS


    Original     		PDF TC74VHC245F/FW/FT/FK TC74VHC245F TC74VHC245FW TC74VHC245FT TC74VHC245FK TC74VHC245

    IC 74ALS245 application

    Abstract: TC74VHC245FT 74ALS245 TC74VHC245 TC74VHC245F TC74VHC245FK
    Text: TC74VHC245F/FT/FK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74VHC245F,TC74VHC245FT,TC74VHC245FK Octal Bus Transceiver The TC74VHC245 is an advanced high speed CMOS OCTAL BUS TRANSCEIVER fabricated with silicon gate C2MOS technology. It achieves the high speed operation similar to equivalent


    Original     		PDF TC74VHC245F/FT/FK TC74VHC245F TC74VHC245FT TC74VHC245FK TC74VHC245 TC74VHC245F IC 74ALS245 application 74ALS245 TC74VHC245FK

    TC74VHC245

    Abstract: 74ALS245 TC74VHC245F TC74VHC245FK TC74VHC245FT
    Text: TC74VHC245F/FT/FK 東芝CMOSデジタル集積回路 シリコン モノリシック TC74VHC245F,TC74VHC245FT,TC74VHC245FK Octal Bus Transceiver TC74VHC245 はシリコンゲート CMOS 技術を用いた超高速 CMOS 8 回路入り双方向性バスバッファです。CMOS の特長である


    Original     		PDF TC74VHC245F/FT/FK TC74VHC245F TC74VHC245FT TC74VHC245FK TC74VHC245 TC74VHC245F TC74VHC245FT 74ALS245 OP20-P-300-1 TC74VHC245 74ALS245 TC74VHC245FK

    schematic diagram atx Power supply 500w

    Abstract: pioneer PAL 012A 1000w inverter PURE SINE WAVE schematic diagram 600va numeric ups circuit diagrams winbond bios 25064 TLE 9180 infineon smsc MEC 1300 nu TBE schematic diagram inverter 2000w DK55 circuit diagram of luminous 600va UPS
    Text: QUICK INDEX NEW IN THIS ISSUE! Detailed Index - See Pages 3-24 Digital Signal Processors, iCoupler , iMEMS® and iSensor . . . . . 805, 2707, 2768-2769 Connectors, Cable Assemblies, IC Sockets . . . . . . . . . . . 28-568 RF Connectors . . . . . . . . . . . . . . . . . . . . . . Pages 454-455


    Original     		PDF P462-ND P463-ND LNG295LFCP2U LNG395MFTP5U US2011) schematic diagram atx Power supply 500w pioneer PAL 012A 1000w inverter PURE SINE WAVE schematic diagram 600va numeric ups circuit diagrams winbond bios 25064 TLE 9180 infineon smsc MEC 1300 nu TBE schematic diagram inverter 2000w DK55 circuit diagram of luminous 600va UPS

    lm39401t

    Abstract: blm21p300 MOSFET R166 5361AS PANASONIC sram card 34 pin philips cdi schematics max232cwe 5361bs PQFP240 rpack8
    Text: CRD42528 Reference Design for the CS49300 and CS42528 Features Description Supports 4 digital S/PDIF IEC60958/IEC61937 inputs 8 Discrete analog inputs using the CS42528 + 3 external CS5351 ADCs for 8 analog channels of input at 48 kHz and 96 kHz 2 Channel upsampling supported


    Original     		PDF CRD42528 CS49300 CS42528 IEC60958/IEC61937) CS5351 CS42528 XMT958 lm39401t blm21p300 MOSFET R166 5361AS PANASONIC sram card 34 pin philips cdi schematics max232cwe 5361bs PQFP240 rpack8

    LM39401

    Abstract: lm39401t PQFP240 SWITCHING TRANSISTOR C145 samsung r216 ECE-V1VA100P 512K DIGITAL ECHO IC Zener C237 SAMSUNG C105 AR psa 42 c240
    Text: CDB49400 Evaluation Board for CS49400 Family DSP Features Description 8 Discrete analog inputs using CS5360 ADCs 8 Discrete analog outputs using CS4392 DACs Supports 16 Channel decoding capability of the CS49400 1Digital input using the CS8415A S/PDIF receiver


    Original     		PDF CDB49400 CS49400 CS5360 CS4392 CS49400 CS8415A CS8405 CDB49400 CS49400. LM39401 lm39401t PQFP240 SWITCHING TRANSISTOR C145 samsung r216 ECE-V1VA100P 512K DIGITAL ECHO IC Zener C237 SAMSUNG C105 AR psa 42 c240

    220v AC voltage stabilizer schematic diagram

    Abstract: LG color tv Circuit Diagram tda 9370 1000w inverter PURE SINE WAVE schematic diagram schematic diagram atx Power supply 500w TV SHARP IC TDA 9381 PS circuit diagram wireless spy camera 9744 mini mainboard v1.2 sony 279-87 transistor E 13005-2 superpro lx
    Text: QUICK INDEX NEW IN THIS ISSUE! Detailed Index - See Pages 3-24 AD9272 Analog Front End, iMEMS Accelerometers & Gyroscopes . . . . . . 782, 2583 Connectors, Cable Assemblies, IC Sockets . . . . . . . . . . . 28-528 Acceleration and Pressure Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2585


    Original     		PDF AD9272 P462-ND LNG295LFCP2U P463-ND LNG395MFTP5U 220v AC voltage stabilizer schematic diagram LG color tv Circuit Diagram tda 9370 1000w inverter PURE SINE WAVE schematic diagram schematic diagram atx Power supply 500w TV SHARP IC TDA 9381 PS circuit diagram wireless spy camera 9744 mini mainboard v1.2 sony 279-87 transistor E 13005-2 superpro lx

    tb31224cf

    Abstract: transistor 2sk1603 TA8264AHQ TC94A58FAG TA7769P TA8275HQ 2SK1603 ta8266hq 2SK2056 S2Y52
    Text: 2005-2 PRODUCT GUIDE Semiconductor Product Guide 2005 Toshiba Electronics Malaysia Sdn. Bhd. Toshiba Semiconductor Thailand Co., Ltd. Toshiba Semiconductor (Wuxi) Co., Ltd. semiconductor http://www.semicon.toshiba.co.jp/eng Committed to people, Committed to the Future


    Original     		PDF SCE0007A tb31224cf transistor 2sk1603 TA8264AHQ TC94A58FAG TA7769P TA8275HQ 2SK1603 ta8266hq 2SK2056 S2Y52

    Untitled

    Abstract: No abstract text available
    Text: TOSHIBA TC74VHC245F/FW/FS/FT TOSHIBA CMOS DIGITAL INTEGRATED CIRCUIT SILICON MONOLITHIC TC74VHC245F, TC74VHC245FW, TC74VHC245FS, TC74VHC245FT OCTAL BUS TRANSCEIVER The TC74VHC245 is an advanced high speed CMOS OCTAL BU S TRANSCEIVER fabricated with silicon gate C2MOS


    OCR Scan     		PDF TC74VHC245F/FW/FS/FT TC74VHC245F, TC74VHC245FW, TC74VHC245FS, TC74VHC245FT TC74VHC245

    20PIN

    Abstract: 74ALS245 TC74VHC245 TC74VHC245F TC74VHC245FT TC74VHC245FW
    Text: TO SH IBA T C74VH C245F/FW/FT TOSHIBA CMOS DIGITAL INTEGRATED CIRCUIT SILICON MONOLITHIC TC74VHC245F, TC74VHC245FW, TC74VHC245FT OCTAL BUS Note The JEDEC SOP (FW) is not available in Japan. TRANSCEIVER The TC74VHC245 is an advanced high speed CMOS OCTAL


    OCR Scan     		PDF TC74VHC245F/FW/FT TC74VHC245F, TC74VHC245FW, TC74VHC245FT TC74VHC245 20PIN 74ALS245 TC74VHC245F TC74VHC245FT TC74VHC245FW

    Untitled

    Abstract: No abstract text available
    Text: T O SH IB A TC74VHC245F/FW/FT TOSHIBA CMOS DIGITAL INTEGRATED CIRCUIT SILICON MONOLITHIC TC74VHC245F, TC74VHC245FW, TC74VHC245FT OCTAL Note The JEDEC SOP (FW) is not available in Japan. BUS TRANSCEIVER The TC74VHC245 is an advanced high speed CMOS OCTAL


    OCR Scan     		PDF TC74VHC245F/FW/FT TC74VHC245F, TC74VHC245FW, TC74VHC245FT TC74VHC245 20PIN 200mil OP20-P-300-1

    74ALS245

    Abstract: TC74VHC245 TC74VHC245F TC74VHC245FT TC74VHC245FW Ci 4008
    Text: TOSHIBA TC74VHC245F/FW/FT TOSHIBA CMOS DIGITAL INTEGRATED CIRCUIT SILICON MONOLITHIC TC74VHC245F, TC74VHC245FW, TC74VHC245FT OCTAL BUS Note The JEDEC SOP (FW) is not available in Japan. TRANSCEIVER The TC74VHC245 is an advanced high speed CMOS OCTAL BUS TRANSCEIVER fabricated with silicon gate C2MOS


    OCR Scan     		PDF TC74VHC245F/FW/FT TC74VHC245F, TC74VHC245FW, TC74VHC245FT TC74VHC245 20PIN 200mil OP20-P-300-1 685TYP 74ALS245 TC74VHC245F TC74VHC245FT TC74VHC245FW Ci 4008

    Untitled

    Abstract: No abstract text available
    Text: TOSHIBA T C74VH C245F/FW/FS/FT TOSHIBA C M O S DIGITAL INTEGRATED CIRCUIT SILICON MONOLITHIC TC74VHC245F, TC74VHC245FW, TC74VHC245FS, TC74VHC245FT OCTAL BUS TRANSCEIVER The TC74VHC245 is an advanced high speed CMOS OCTAL BUS TRANSCEIVER fabricated with silicon gate C2MOS


    OCR Scan     		PDF C74VH C245F/FW/FS/FT TC74VHC245F, TC74VHC245FW, TC74VHC245FS, TC74VHC245FT TC74VHC245 20PIN 200mil OP20-P-300-1

    Untitled

    Abstract: No abstract text available
    Text: - TC74VHC245F/FW/FS OCTAL BUS TRANSCEIVER The TC74VHC245 is an advanced high speed CMOS OCTAL BUS TRANSCEIVER fabricated with silicon gate C2MOS technology. It achieves the high speed operation sim ilar to equivalent Bipolar Schottky TTL while m aintaining the CMOS low


    OCR Scan     		PDF TC74VHC245F/FW/FS TC74VHC245 DG27370

    IC 74ALS245 application

    Abstract: No abstract text available
    Text: TO SH IB A TC74VHC245F/FW/FT TO SHIBA CM OS D IGITAL INTEGRATED CIRCUIT SILICON M ONOLITHIC TC74VHC245F, TC74VHC245FW, TC74VHC245FT OCTAL BUS TRANSCEIVER The TC74VHC245 is an advanced high speed CMOS OCTAL BUS TRANSCEIVER fabricated with silicon gate C2MOS


    OCR Scan     		PDF TC74VHC245F/FW/FT TC74VHC245F, TC74VHC245FW, TC74VHC245FT TC74VHC245 20PIN 200mil OP20-P-300-1 685TYP. IC 74ALS245 application

    TC74VHC245FS

    Abstract: 74ALS245 TC74VHC245 TC74VHC245F TC74VHC245FT TC74VHC245FW
    Text: TOSHIBA T C74VH C245 F/FW/FS/FT TO SH IBA CM OS D IG ITAL INTEGRATED CIRCUIT SILICON M ONOLITHIC TC74VHC245F, TC74VHC245FW, TC74VHC245FS, TC74VHC245FT OCTAL BUS TRANSCEIVER The TC74VHC245 is an advanced high speed CMOS OCTAL BUS TRANSCEIVER fabricated with silicon gate C2MOS


    OCR Scan     		PDF TC74VHC245F/FW/FS/FT TC74VHC245F, TC74VHC245FW, TC74VHC245FS, TC74VHC245FT TC74VHC245 20PIN 300mil SOL20-P-300-1 685TYP TC74VHC245FS 74ALS245 TC74VHC245F TC74VHC245FT TC74VHC245FW

    VHC244F

    Abstract: No abstract text available
    Text: TOSHIBA 5. [5] Other Electrical Characteristics Other Electrical Characteristics 5-1 Power Dissipation The power dissipation is given as the sum of the quiescent supply current and the dynamic operating current. Therefore, it can be obtained from the following equation:


    OCR Scan     		PDF Ta-25 -50pF 74VHC VHC244F) VHC244F