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

    CD74HC194M Search Results

    CD74HC194M Result Highlights (2)

    Part ECAD Model Manufacturer Description Download Buy
    CD74HC194M Texas Instruments High Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register 16-SOIC -55 to 125 Visit Texas Instruments Buy
    CD74HC194M96 Texas Instruments High Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register 16-SOIC -55 to 125 Visit Texas Instruments Buy
    SF Impression Pixel

    CD74HC194M Price and Stock

    Texas Instruments CD74HC194M96

    IC SHIFT REGISTER BI-DIR 16-SOIC
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey CD74HC194M96 Digi-Reel 2,419 1
    • 1 $0.47
    • 10 $0.329
    • 100 $0.2549
    • 1000 $0.21599
    • 10000 $0.21599
    Buy Now
    CD74HC194M96 Cut Tape 2,419 1
    • 1 $0.47
    • 10 $0.329
    • 100 $0.2549
    • 1000 $0.21599
    • 10000 $0.21599
    Buy Now
    CD74HC194M96 Reel 2,500
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $0.18093
    Buy Now
    Mouser Electronics CD74HC194M96 1,357
    • 1 $0.43
    • 10 $0.268
    • 100 $0.212
    • 1000 $0.209
    • 10000 $0.155
    Buy Now
    Verical CD74HC194M96 42,500 2,050
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $0.183
    Buy Now
    CD74HC194M96 2,500 2,050
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $0.183
    Buy Now
    CD74HC194M96 809 34
    • 1 -
    • 10 -
    • 100 $0.0877
    • 1000 $0.0708
    • 10000 $0.0708
    Buy Now
    Arrow Electronics CD74HC194M96 Cut Strips 809 12 Weeks 1
    • 1 $0.1692
    • 10 $0.1148
    • 100 $0.0877
    • 1000 $0.0708
    • 10000 $0.0708
    Buy Now
    Bristol Electronics CD74HC194M96 1,455
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Get Quote
    Quest Components CD74HC194M96 1,164
    • 1 $0.65
    • 10 $0.65
    • 100 $0.65
    • 1000 $0.26
    • 10000 $0.26
    Buy Now
    Rochester Electronics CD74HC194M96 45,000 1
    • 1 $0.1722
    • 10 $0.1722
    • 100 $0.1619
    • 1000 $0.1464
    • 10000 $0.1464
    Buy Now

    Texas Instruments CD74HC194M

    IC BI-DIR SHIFT REGISTER 16-SOIC
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey CD74HC194M Tube 675 1
    • 1 $1.15
    • 10 $0.833
    • 100 $1.15
    • 1000 $0.59669
    • 10000 $0.59669
    Buy Now
    Verical CD74HC194M 16,220 610
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.5814
    • 10000 $0.5814
    Buy Now
    CD74HC194M 1,010 610
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.5814
    • 10000 $0.5814
    Buy Now
    Bristol Electronics CD74HC194M 950
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Get Quote
    CD74HC194M 50
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Get Quote
    Rochester Electronics CD74HC194M 17,742 1
    • 1 $0.5472
    • 10 $0.5472
    • 100 $0.5144
    • 1000 $0.4651
    • 10000 $0.4651
    Buy Now
    TME CD74HC194M 250 5
    • 1 -
    • 10 $0.833
    • 100 $0.743
    • 1000 $0.63
    • 10000 $0.63
    Buy Now

    Rochester Electronics LLC CD74HC194M

    UNIVERSAL SHIFT REGISTER
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey CD74HC194M Tube 528
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.57
    • 10000 $0.57
    Buy Now

    Texas Instruments CD74HC194MT

    IC BI-DIR SHIFT REGISTER 16SOIC
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey CD74HC194MT Reel 1,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.4151
    • 10000 $0.3855
    Buy Now
    Verical CD74HC194MT 7,500 993
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.3778
    • 10000 $0.3568
    Buy Now
    Rochester Electronics CD74HC194MT 7,500 1
    • 1 $0.3358
    • 10 $0.3358
    • 100 $0.3157
    • 1000 $0.2854
    • 10000 $0.2854
    Buy Now

    Rochester Electronics LLC CD74HC194MT

    PARALLEL IN PARALLEL OUT
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey CD74HC194MT Bulk 860
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.35
    • 10000 $0.35
    Buy Now

    CD74HC194M Datasheets (28)

    Part ECAD Model Manufacturer Description Curated Datasheet Type PDF
    CD74HC194M Texas Instruments High-Speed CMOS Logic 4 Bit Bidirectional Universal Shift Register Original PDF
    CD74HC194M Texas Instruments High Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register 16-SOIC -55 to 125 Original PDF
    CD74HC194M Texas Instruments High-Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register Original PDF
    CD74HC194M Texas Instruments CD74HC194 - High Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register 16-SOIC -55 to 125 Original PDF
    CD74HC194M Unknown Historical semiconductor price guide (US$ - 1998). From our catalog scanning project. Historical PDF
    CD74HC194M96 Texas Instruments High-Speed CMOS Logic 4 Bit Bidirectional Universal Shift Register Original PDF
    CD74HC194M96 Texas Instruments High Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register 16-SOIC -55 to 125 Original PDF
    CD74HC194M96 Texas Instruments High-Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register Original PDF
    CD74HC194M96 Texas Instruments CD74HC194 - High Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register 16-SOIC -55 to 125 Original PDF
    CD74HC194M96 Unknown Historical semiconductor price guide (US$ - 1998). From our catalog scanning project. Historical PDF
    CD74HC194M96E4 Texas Instruments High Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register Original PDF
    CD74HC194M96E4 Texas Instruments High Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register 16-SOIC -55 to 125 Original PDF
    CD74HC194M96E4 Texas Instruments CD74HC194 - High Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register 16-SOIC -55 to 125 Original PDF
    CD74HC194M96G4 Texas Instruments High Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register 16-SOIC -55 to 125 Original PDF
    CD74HC194M96G4 Texas Instruments CD74HC194 - High Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register 16-SOIC -55 to 125 Original PDF
    CD74HC194ME4 Texas Instruments High Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register Original PDF
    CD74HC194ME4 Texas Instruments High Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register 16-SOIC -55 to 125 Original PDF
    CD74HC194ME4 Texas Instruments CD74HC194 - High Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register 16-SOIC -55 to 125 Original PDF
    CD74HC194MG4 Texas Instruments High Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register 16-SOIC -55 to 125 Original PDF
    CD74HC194MG4 Texas Instruments CD74HC194 - High Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register 16-SOIC -55 to 125 Original PDF

    CD74HC194M Datasheets Context Search

    Catalog Datasheet MFG & Type PDF Document Tags

    CD54HC194

    Abstract: CD54HC194F3A CD74HC194 CD74HC194E CD74HC194M CD74HCT194 HC194
    Text: [ /Title CD74 HC194, CD74H CT194 /Subject (HighSpeed CMOS Logic 4-Bit CD54HC194, CD74HC194, CD74HCT194 Data sheet acquired from Harris Semiconductor SCHS164G September 1997 - Revised May 2006 High-Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register


    Original
    PDF HC194, CD74H CT194) CD54HC194, CD74HC194, CD74HCT194 SCHS164G HC194 CD74HCT194 CD54HC194 CD54HC194F3A CD74HC194 CD74HC194E CD74HC194M

    CD54HC194

    Abstract: No abstract text available
    Text: [ /Title CD74 HC194, CD74H CT194 /Subject (HighSpeed CMOS Logic 4-Bit CD54HC194, CD74HC194, CD74HCT194 Data sheet acquired from Harris Semiconductor SCHS164G September 1997 - Revised May 2006 High-Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register


    Original
    PDF HC194, CD74H CT194) CD54HC194, CD74HC194, CD74HCT194 SCHS164G HC194 CD74HCT194 CD54HC194

    CD54HC194

    Abstract: CD54HC194F3A CD74HC194 CD74HC194E CD74HC194M CD74HCT194 HC194 CD74HC19
    Text: [ /Title CD74 HC194, CD74H CT194 /Subject (HighSpeed CMOS Logic 4-Bit CD54HC194, CD74HC194, CD74HCT194 Data sheet acquired from Harris Semiconductor SCHS164F September 1997 - Revised October 2003 High-Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register


    Original
    PDF HC194, CD74H CT194) CD54HC194, CD74HC194, CD74HCT194 SCHS164F HC194 CD74HCT194 CD54HC194 CD54HC194F3A CD74HC194 CD74HC194E CD74HC194M CD74HC19

    5555 FAIRCHILD optocoupler

    Abstract: MC74HC374N 74hc14n equivalent NC7S125M5 14069 HCF4541BEY APPLICATION HCF4013BE 4026 fairchild datasheet 14543 motorola Motorola DM74LS139N
    Text: R E L I A B L E . L O G I C . I N N O V A T I O N . Logic Cross-Reference Logic Cross-Reference 2003 Texas Instruments Printed in the U.S.A. by Texoma Business Forms, Durant, Oklahoma Printed on recycled paper. SCYB017A NEW First Revision Logic Cross-Reference


    Original
    PDF SCYB017A A010203 5555 FAIRCHILD optocoupler MC74HC374N 74hc14n equivalent NC7S125M5 14069 HCF4541BEY APPLICATION HCF4013BE 4026 fairchild datasheet 14543 motorola Motorola DM74LS139N

    CD74HC194

    Abstract: CD74HC194E CD74HC194M CD74HCT194 CD74HCT194E HC194 SCHS164
    Text: [ /Title CD74 HC194, CD74H CT194 /Subject (HighSpeed CMOS Logic 4-Bit CD74HC194, CD74HCT194 Data sheet acquired from Harris Semiconductor SCHS164 High-Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register September 1997 Features Description • Four Operating Modes


    Original
    PDF HC194, CD74H CT194) CD74HC194, CD74HCT194 SCHS164 CD74HC194 CD74HCT194 CD74HC194E CD74HC194M CD74HCT194E HC194 SCHS164

    CD54HC194

    Abstract: No abstract text available
    Text: [ /Title CD74 HC194, CD74H CT194 /Subject (HighSpeed CMOS Logic 4-Bit CD54HC194, CD74HC194, CD74HCT194 Data sheet acquired from Harris Semiconductor SCHS164G September 1997 - Revised May 2006 High-Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register


    Original
    PDF HC194, CD74H CT194) CD54HC194, CD74HC194, CD74HCT194 SCHS164G HC194 CD74HCT194 CD54HC194

    CD54HC194

    Abstract: No abstract text available
    Text: [ /Title CD74 HC194, CD74H CT194 /Subject (HighSpeed CMOS Logic 4-Bit CD54HC194, CD74HC194, CD74HCT194 Data sheet acquired from Harris Semiconductor SCHS164G September 1997 - Revised May 2006 High-Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register


    Original
    PDF CD54HC194, CD74HC194, CD74HCT194 SCHS164G HC194 CD74HCT194 CD54HC194

    74HC194

    Abstract: HC194 CD74HCT194 CD54HC194F3A CD74HC194E CD74HC194M CD74HC194NSR CD54HC194
    Text: [ /Title CD74 HC194, CD74H CT194 /Subject (HighSpeed CMOS Logic 4-Bit CD54/74HC194, CD74HCT194 Data sheet acquired from Harris Semiconductor SCHS164B High-Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register September 1997 - Revised March 2002 Features


    Original
    PDF HC194, CD74H CT194) CD54/74HC194, CD74HCT194 SCHS164B HC194 CD74HCT194 74HC194 CD54HC194F3A CD74HC194E CD74HC194M CD74HC194NSR CD54HC194

    CD54HC194

    Abstract: No abstract text available
    Text: [ /Title CD74 HC194, CD74H CT194 /Subject (HighSpeed CMOS Logic 4-Bit CD54/74HC194, CD74HCT194 Data sheet acquired from Harris Semiconductor SCHS164C High-Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register September 1997 - Revised July 2002 Features


    Original
    PDF CD54/74HC194, CD74HCT194 SCHS164C HC194 CD74HCT194 CD54HC194

    CD4000 series

    Abstract: CD4060BE CD4017BE CD40106BE CD4541BE CD4066BE CD4511BE DATASHEET CD4511BE CD4011BE CD4020BE Datasheet
    Text: CD4000 Series CD4001BE CD4001BM CD4001BM96 CD4001UBE CD4001UBM CD4002BE CD4006BE CD4007UBE CD4007UBM CD4009UBE CD4010BE CD4011BE CD4011BM CD4011BM96 CD4011UBE CD4011UBM CD4012BE CD4012BM CD4012BM96 CD4013BE CD4013BM CD4013BM96 CD4014BE CD4015BE CD4016BE


    Original
    PDF CD4000 CD4001BE CD4001BM CD4001BM96 CD4001UBE CD4001UBM CD4002BE CD4006BE CD4007UBE CD4007UBM CD4000 series CD4060BE CD4017BE CD40106BE CD4541BE CD4066BE CD4511BE DATASHEET CD4511BE CD4011BE CD4020BE Datasheet

    HC194

    Abstract: CD54HC194 CD54HC194F3A CD74HC194 CD74HC194E CD74HC194M CD74HCT194
    Text: [ /Title CD74 HC194, CD74H CT194 /Subject (HighSpeed CMOS Logic 4-Bit CD54HC194, CD74HC194, CD74HCT194 Data sheet acquired from Harris Semiconductor SCHS164F September 1997 - Revised October 2003 High-Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register


    Original
    PDF HC194, CD74H CT194) CD54HC194, CD74HC194, CD74HCT194 SCHS164F HC194 CD74HCT194 CD54HC194 CD54HC194F3A CD74HC194 CD74HC194E CD74HC194M

    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

    TSSOP 16

    Abstract: CD54HC194
    Text: [ /Title CD74 HC194, CD74H CT194 /Subject (HighSpeed CMOS Logic 4-Bit CD54HC194, CD74HC194, CD74HCT194 Data sheet acquired from Harris Semiconductor SCHS164E High-Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register September 1997 - Revised May 2003


    Original
    PDF CD54HC194, CD74HC194, CD74HCT194 SCHS164E HC194 CD74HCT194 TSSOP 16 CD54HC194

    CD54HC194

    Abstract: No abstract text available
    Text: [ /Title CD74 HC194, CD74H CT194 /Subject (HighSpeed CMOS Logic 4-Bit CD54HC194, CD74HC194, CD74HCT194 Data sheet acquired from Harris Semiconductor SCHS164G September 1997 - Revised May 2006 High-Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register


    Original
    PDF CD54HC194, CD74HC194, CD74HCT194 SCHS164G HC194 CD74HCT194 CD54HC194

    CD4558

    Abstract: NC7S125 MC74F138N HCF4541 Motorola MC74HC251N 74ACT161 DHVQFN-20 74V1G08 SOT323/5 HCF4017 SN74ACT14DR
    Text: Logic Cross-Reference Introduction This Logic Cross-Reference for Buyers, Distribution Specialists and others with an interest in Logic will assist in finding a device made by Texas Instruments that is identical or similar to many of our competitors’ Logic products.


    Original
    PDF 74ABT16244 A010203 53001cov SCYB017 CD4558 NC7S125 MC74F138N HCF4541 Motorola MC74HC251N 74ACT161 DHVQFN-20 74V1G08 SOT323/5 HCF4017 SN74ACT14DR

    CD54HC194

    Abstract: No abstract text available
    Text: [ /Title CD74 HC194, CD74H CT194 /Subject (HighSpeed CMOS Logic 4-Bit CD54HC194, CD74HC194, CD74HCT194 Data sheet acquired from Harris Semiconductor SCHS164F September 1997 - Revised October 2003 High-Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register


    Original
    PDF CD54HC194, CD74HC194, CD74HCT194 SCHS164F HC194 CD74HCT194 CD54HC194

    CD54HC194

    Abstract: No abstract text available
    Text: [ /Title CD74 HC194, CD74H CT194 /Subject (HighSpeed CMOS Logic 4-Bit CD54HC194, CD74HC194, CD74HCT194 Data sheet acquired from Harris Semiconductor SCHS164G September 1997 - Revised May 2006 High-Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register


    Original
    PDF CD54HC194, CD74HC194, CD74HCT194 SCHS164G HC194 CD74HCT194 CD54HC194

    CD54HC194

    Abstract: CD54HC194F3A CD74HC194 CD74HC194E CD74HC194M CD74HCT194 HC194
    Text: [ /Title CD74 HC194, CD74H CT194 /Subject (HighSpeed CMOS Logic 4-Bit CD54HC194, CD74HC194, CD74HCT194 Data sheet acquired from Harris Semiconductor SCHS164G September 1997 - Revised May 2006 High-Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register


    Original
    PDF HC194, CD74H CT194) CD54HC194, CD74HC194, CD74HCT194 SCHS164G HC194 CD74HCT194 CD54HC194 CD54HC194F3A CD74HC194 CD74HC194E CD74HC194M

    CD54HC194

    Abstract: CD54HC194F3A CD74HC194 CD74HC194E CD74HC194M CD74HCT194 HC194
    Text: [ /Title CD74 HC194, CD74H CT194 /Subject (HighSpeed CMOS Logic 4-Bit CD54HC194, CD74HC194, CD74HCT194 Data sheet acquired from Harris Semiconductor SCHS164G September 1997 - Revised May 2006 High-Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register


    Original
    PDF HC194, CD74H CT194) CD54HC194, CD74HC194, CD74HCT194 SCHS164G HC194 CD74HCT194 CD54HC194 CD54HC194F3A CD74HC194 CD74HC194E CD74HC194M

    CD54HC194

    Abstract: No abstract text available
    Text: [ /Title CD74 HC194, CD74H CT194 /Subject (HighSpeed CMOS Logic 4-Bit CD54/74HC194, CD74HCT194 Data sheet acquired from Harris Semiconductor SCHS164B High-Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register September 1997 - Revised March 2002 Features


    Original
    PDF CD54/74HC194, CD74HCT194 SCHS164B HC194 CD74HCT194 CD74HC194E CD74HC194M CD74HC194M96 CD74HC194NSR CD74HC194PWR CD54HC194

    HC194

    Abstract: CD54HC194 CD74HCT194 CD54HC194F3A CD74HC194 CD74HC194E CD74HC194M
    Text: [ /Title CD74 HC194, CD74H CT194 /Subject (HighSpeed CMOS Logic 4-Bit CD54HC194, CD74HC194, CD74HCT194 Data sheet acquired from Harris Semiconductor SCHS164F September 1997 - Revised October 2003 High-Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register


    Original
    PDF HC194, CD74H CT194) CD54HC194, CD74HC194, CD74HCT194 SCHS164F HC194 CD74HCT194 CD54HC194 CD54HC194F3A CD74HC194 CD74HC194E CD74HC194M

    Untitled

    Abstract: No abstract text available
    Text: CD74HC194, h a f r f r is 94 S E M I C O N D U C T O R H igh-Speed C M O S Logic 4 -Bit Bidirectional Universal Shift Register September 1997 Features Description • Four Operating Modes The Harris CD74HC194 and CD74HCT194 are 4-bit shift registers with Asynchronous Master Reset MR . In the par­


    OCR Scan
    PDF CD74HC194, CD74HC194 CD74HCT194 1-800-4-HARRIS

    HS164

    Abstract: No abstract text available
    Text: CD74HC194, Texas In s t r u m e n t s CD74HCT194 m Data sheet acquired from Harris Sem iconductor SC HS164 Wm m m a W High-Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register September 1997 Features Description • Four Operating Modes The Harris CD74HC194 and CD74HCT194 are 4-bit shift


    OCR Scan
    PDF HS164 CD74HCT194 CD74HC194, CD74HC194 CD74HCT194 HS164

    Untitled

    Abstract: No abstract text available
    Text: CD74HC194, CD74HCT194 ^ Texas In s t r u m e n t s Data sheet acquired from Harris Semiconductor SCHS164 High-Speed CMOS Logic 4 -Bit Bidirectional Universal Shift Register September 1997 Features Description • Four Operating Modes - Shift Right, Shift Left, Hold and Reset


    OCR Scan
    PDF CD74HC194, CD74HCT194 SCHS164 CD74HC194 CD74HCT194