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

    SN74265 Search Results

    SF Impression Pixel

    SN74265 Price and Stock

    Rochester Electronics LLC SN74265N

    IC GATE AND/NAND
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey SN74265N Bulk 533
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.56
    • 10000 $0.56
    		Buy Now

    Texas Instruments SN74265N

    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    Bristol Electronics SN74265N 214
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote
    Quest Components SN74265N 209
    • 1 $1.813
    • 10 $1.813
    • 100 $0.9065
    • 1000 $0.9065
    • 10000 $0.9065
    		Buy Now
    SN74265N 179
    • 1 $10.1925
    • 10 $10.1925
    • 100 $6.2854
    • 1000 $5.6059
    • 10000 $5.6059
    		Buy Now
    SN74265N 144
    • 1 $1.68
    • 10 $1.68
    • 100 $0.84
    • 1000 $0.84
    • 10000 $0.84
    		Buy Now
    SN74265N 80
    • 1 $5.25
    • 10 $5.25
    • 100 $3.2375
    • 1000 $3.2375
    • 10000 $3.2375
    		Buy Now
    SN74265N 45
    • 1 $1.813
    • 10 $1.4504
    • 100 $1.0878
    • 1000 $1.0878
    • 10000 $1.0878
    		Buy Now
    SN74265N 37
    • 1 $2.8
    • 10 $2.1
    • 100 $1.75
    • 1000 $1.75
    • 10000 $1.75
    		Buy Now
    SN74265N 15
    • 1 $1.813
    • 10 $1.4504
    • 100 $1.0878
    • 1000 $1.0878
    • 10000 $1.0878
    		Buy Now
    SN74265N 12
    • 1 $4.62
    • 10 $2.31
    • 100 $2.31
    • 1000 $2.31
    • 10000 $2.31
    		Buy Now
    SN74265N 3
    • 1 $1.0878
    • 10 $1.0878
    • 100 $1.0878
    • 1000 $1.0878
    • 10000 $1.0878
    		Buy Now
    Rochester Electronics SN74265N 532 1
    • 1 $0.5688
    • 10 $0.5688
    • 100 $0.5347
    • 1000 $0.4835
    • 10000 $0.4835
    		Buy Now

    Texas Instruments SN74265N3

    INSTOCK
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    Chip 1 Exchange SN74265N3 10,387
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote

    Others SN74265N3

    INSTOCK
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    Chip 1 Exchange SN74265N3 2,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote

    Others SN74265N

    INSTOCK
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    Chip 1 Exchange SN74265N 97
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote

    SN74265 Datasheets (13)

    Part ECAD Model Manufacturer Description Curated Type PDF
    SN74265 Texas Instruments QUADRUPLE COMPLEMENTARY-OUTPUT ELEMENTS Original PDF
    SN74265J Texas Instruments SN74265 - IC TTL/H/L SERIES, DUAL 2-INPUT AND/NAND GATE, CDIP16, Gate Original PDF
    SN74265J Unknown TTL Data Book 1980 Scan PDF
    SN74265J-00 Texas Instruments SN74265 - IC TTL/H/L SERIES, DUAL 2-INPUT AND/NAND GATE, CDIP16, Gate Original PDF
    SN74265N Texas Instruments Dual NAND Gate and 2 Inverters with Complementary Outputs Original PDF
    SN74265N Texas Instruments Quadruple Complementary-Output Elements Original PDF
    SN74265N Unknown Historical semiconductor price guide (US$ - 1998). From our catalog scanning project. Historical PDF
    SN74265N Unknown TTL Data Book 1980 Scan PDF
    SN74265N-00 Texas Instruments SN74265 - IC TTL/H/L SERIES, DUAL 2-INPUT AND/NAND GATE, PDIP16, Gate Original PDF
    SN74265N-10 Texas Instruments SN74265 - IC TTL/H/L SERIES, DUAL 2-INPUT AND/NAND GATE, PDIP16, Gate Original PDF
    SN74265N3 Texas Instruments Dual NAND Gate and 2 Inverters with Complementary Outputs Original PDF
    SN74265N3 Texas Instruments Quadruple Complementary-Output Elements Original PDF
    SN74265N3 Unknown Historical semiconductor price guide (US$ - 1998). From our catalog scanning project. Historical PDF

    SN74265 Datasheets Context Search

    Catalog Datasheet MFG & Type PDF Document Tags

    SN74265N

    Abstract: SN54265J SN74265N3 SNJ54265J
    Text: PACKAGE OPTION ADDENDUM www.ti.com 30-Mar-2005 PACKAGING INFORMATION Orderable Device Status 1 Package Type Package Drawing Pins Package Eco Plan (2) Qty Lead/Ball Finish MSL Peak Temp (3) SN54265J OBSOLETE CDIP J 16 TBD Call TI Call TI SN74265N OBSOLETE


    Original     		PDF 30-Mar-2005 SN54265J SN74265N SN74265N3 SNJ54265J SN74265N SN54265J SN74265N3 SNJ54265J

    SNJ54265J

    Abstract: SN74265N SN54265J SN74265N3
    Text: PACKAGE OPTION ADDENDUM www.ti.com 18-Sep-2008 PACKAGING INFORMATION Orderable Device Status 1 Package Type Package Drawing Pins Package Eco Plan (2) Qty Lead/Ball Finish MSL Peak Temp (3) SN54265J OBSOLETE CDIP J 16 TBD Call TI Call TI SN74265N OBSOLETE


    Original     		PDF 18-Sep-2008 SN54265J SN74265N SN74265N3 SNJ54265J SNJ54265J SN74265N SN54265J SN74265N3

    hct 4047 bt

    Abstract: SN74ALS679 FCT Fast CMOS TTL Logic 74LS 4075 7804 inverter SN74368A DTL Logic 4069 CMOS hex inverter SN502 CD74AC374
    Text: IMPORTANT NOTICE Texas Instruments and its subsidiaries TI reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold


    Original     		PDF SDYZ001A, SN74LS138D SN74LS138DR SN74LS138N SN74LS138N3 SN74LS138NSR images/sn74ls138 hct 4047 bt SN74ALS679 FCT Fast CMOS TTL Logic 74LS 4075 7804 inverter SN74368A DTL Logic 4069 CMOS hex inverter SN502 CD74AC374

    74HCT 4013

    Abstract: CD4078 4093 BF SN74368A SN74ALS679 LXZ Series 4069 CMOS hex inverter 2a2 vacuum tube CD74AC374 cd408
    Text: SN54HC240, SN74HC240 OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS SCLS128B – DECEMBER 1982 – REVISED MAY 1997 D D SN54HC240 . . . J OR W PACKAGE SN74HC240 . . . DW OR N PACKAGE TOP VIEW 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers


    Original     		PDF SN54HC240, SN74HC240 SCLS128B 300-mil SN54HC240 SN74HC240 HC240 SDYZ001A, SN74HC240DW SN74HC240DWR 74HCT 4013 CD4078 4093 BF SN74368A SN74ALS679 LXZ Series 4069 CMOS hex inverter 2a2 vacuum tube CD74AC374 cd408

    FT 4013 d dual flip flop

    Abstract: FT 4013 D flip flop 74HC octal bidirectional latch 74HCT 4013 DATASHEET 4511 pin configuration SN7432 fairchild CMOS TTL Logic Family Specifications 7805 acv Datasheet of decade counter CD 4017 sn74154
    Text: T H E W O R L D L E A D E R I N L O G I C P R O D U C T S Logic Selection Guide February 2000 1999 EEProduct News PRODUCTS OF THE YEAR AWARD New products for prototype design AVC Advanced Very-Low-Voltage CMOS Logic See Section 4 LOGIC OVERVIEW 1 FUNCTIONAL INDEX


    Original     		PDF

    sn74 series TTL logic gates list

    Abstract: IC 4073 SCLS298 SN74LS02 function SN74368A electromechanical catalog Tubes Catalog 4066 bd for sn74ls04 SDFD001B
    Text: IMPORTANT NOTICE Texas Instruments and its subsidiaries TI reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold


    Original     		PDF SDYZ001A, SN74LS02D SN74LS02DR SN74LS02J SN74LS02N SN74LS02N3 SN74LS02NSR images/sn74ls02 sn74 series TTL logic gates list IC 4073 SCLS298 SN74LS02 function SN74368A electromechanical catalog Tubes Catalog 4066 bd for sn74ls04 SDFD001B

    CD4000 SERIES BOOK

    Abstract: ten segment display 74HC nobel tv circuit SCLS298 SN74BCT126 8Q 4030 DECADE COUNTER 4017 PIN OUT DIAGRAM WORKING IC 4026 CMOS DECADE COUNTER 4017 Difference between LS, HC, HCT, H
    Text: SN54ALS373, SN54AS373, SN74ALS373A, SN74AS373 OCTAL TRANSPARENT D-TYPE LATCHES WITH 3-STATE OUTPUTS SDAS083B – APRIL 1982 – REVISED DECEMBER 1994 OE 1Q 1D 2D 2Q 3Q 3D 4D 4Q GND These octal transparent D-type latches feature 3-state outputs designed specifically for driving


    Original     		PDF SN54ALS373, SN54AS373, SN74ALS373A, SN74AS373 SDAS083B 300-mil SDYZ001A, SN74ALS373ADBLE SN74ALS373ADBR SN74ALS373ADW CD4000 SERIES BOOK ten segment display 74HC nobel tv circuit SCLS298 SN74BCT126 8Q 4030 DECADE COUNTER 4017 PIN OUT DIAGRAM WORKING IC 4026 CMOS DECADE COUNTER 4017 Difference between LS, HC, HCT, H

    SN502

    Abstract: 74HCT 4013 SN74368A ic 4024 7-stage counter 163245 cd408 CD74AC374 1A2 CPU TSSOP 20PIN sn7414 circuit 4000 series CMOS Logic ICs 4030
    Text: SN54F244, SN74F244 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SDFS063A – D2932, MARCH 1987 – REVISED OCTOBER 1993 • SN54F244 . . . J PACKAGE SN74F244 . . . DB, DW, OR N PACKAGE TOP VIEW 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers


    Original     		PDF SN54F244, SN74F244 SDFS063A D2932, SN54F244 SN74F244 noniSN74F244N SN74F244N3 SN74F244NSR SN502 74HCT 4013 SN74368A ic 4024 7-stage counter 163245 cd408 CD74AC374 1A2 CPU TSSOP 20PIN sn7414 circuit 4000 series CMOS Logic ICs 4030

    74LS series logic gates 3 input or gate

    Abstract: sn74 series TTL logic gates list 4017 counter IC datasheet data sheet ic 4017 IC CD 4033 pin configuration CMOS Data Book Texas Instruments Incorporated 74LS series logic gates hp 4514 TEXAS INSTRUMENTS SN7400 SERIES ic 4026 down counter
    Text: LOGIC OVERVIEW 1 FOCUS ON THE IDEAL LITTLE LOGIC SOLUTION 2 FUNCTIONAL INDEX 3 FUNCTIONAL CROSSĆREFERENCE 4 DEVICE SELECTION GUIDE 5 PACKAGING AND MARKING INFORMATION A LOGIC PURCHASING TOOL/ALTERNATE SOURCES B LOGIC SELECTION GUIDE FIRST HALF 2002 IMPORTANT NOTICE


    Original     		PDF

    SN502

    Abstract: 40106 internal circuit diagram 88ti SN74368A CD4502 SN74LVC2 philips hl 5123 CD4527 LVC 161284 sn74ls04n pin out
    Text: IMPORTANT NOTICE Texas Instruments and its subsidiaries TI reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold


    Original     		PDF utiliz4LS04N SN74LS04N3 SN74LS04NSR SDLM002, images/sn74ls04 SN502 40106 internal circuit diagram 88ti SN74368A CD4502 SN74LVC2 philips hl 5123 CD4527 LVC 161284 sn74ls04n pin out

    4044N

    Abstract: MONOSTABLE MULTIVIBRATORS WITH 4093 CD4000 SERIES BOOK transistor t18 FET ic MAX 8997 lvc4245 SN74368A philips 18504 40106 internal circuit diagram CI 40106
    Text: IMPORTANT NOTICE Texas Instruments and its subsidiaries TI reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold


    Original     		PDF SN74LS05D SN74LS05DBLE SN74LS05DBR SN74LS05DR SN74LS05N SN74LS05N3 SN74LS05NSR images/sn74ls05 4044N MONOSTABLE MULTIVIBRATORS WITH 4093 CD4000 SERIES BOOK transistor t18 FET ic MAX 8997 lvc4245 SN74368A philips 18504 40106 internal circuit diagram CI 40106

    retriggerable monostable 40106

    Abstract: SCAD001D 4011BE sn74 series TTL logic gates list ic HC 4066 AG SN74368A CD4000 SERIES BOOK SDAD001 SN 74 ABT H 16 2 224 A DGG R nobel tv circuit
    Text: SN54ABT377, SN74ABT377A OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH CLOCK ENABLE SCBS156E – FEBRUARY 1991 – REVISED JANUARY 1997 D D D D SN54ABT377 . . . J OR W PACKAGE SN74ABT377A . . . DB, DW, N, OR PW PACKAGE TOP VIEW CLKEN 1Q 1D 2D 2Q 3Q 3D 4D 4Q


    Original     		PDF SN54ABT377, SN74ABT377A SCBS156E JESD-17 32-mA 64-mA MIL-STD-883, SN54ABT377 pdf\recode\sn74abt377a retriggerable monostable 40106 SCAD001D 4011BE sn74 series TTL logic gates list ic HC 4066 AG SN74368A CD4000 SERIES BOOK SDAD001 SN 74 ABT H 16 2 224 A DGG R nobel tv circuit

    IC 40106 pin diagram

    Abstract: cmos ALL 4000- 4001- 4002 TO 4099 series IN MOTOROLA signetics hand book SDFD001B SN74368A cd4536 74HCT 4013 CD4000 SERIES BOOK SDLS051 40106 internal circuit diagram
    Text: SN54ABT646A, SN74ABT646A OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUPUTS SCBS069G – JULY 1991 – REVISED MAY 1997 D D D D SN54ABT646A . . . JT OR W PACKAGE SN74ABT646A . . . DB, DW, NT, OR PW PACKAGE TOP VIEW CLKAB SAB DIR A1 A2 A3 A4 A5 A6 A7


    Original     		PDF SN54ABT646A, SN74ABT646A SCBS069G MIL-STD-883, JESD-17 32-mA 64-mA SN54ABT646A pdf\recode\sn74abt646a IC 40106 pin diagram cmos ALL 4000- 4001- 4002 TO 4099 series IN MOTOROLA signetics hand book SDFD001B SN74368A cd4536 74HCT 4013 CD4000 SERIES BOOK SDLS051 40106 internal circuit diagram

    T flip flop IC

    Abstract: pin designation for CD40110B IC 74LS series logic gates 3 input or gate FT 4013 d dual flip flop ic cmos 4011 CD4001* using NAND gates IC CD 4033 pin configuration Quad 2 input nand gate cd 4093 FT 4013 D flip flop 74HCT 4013 DATASHEET
    Text: T H E W O R L D L E A D E R I N L O G I C P R O D U C T S Logic Selection Guide February 2000 1999 EEProduct News PRODUCTS OF THE YEAR AWARD New products for prototype design AVC Advanced Very-Low-Voltage CMOS Logic See Section 4 LOGIC OVERVIEW 1 FUNCTIONAL INDEX


    Original     		PDF

    SN74265

    Abstract: TTL 7404 propagation delay
    Text: SN54265, SN74265 QUADRUPLE COMPLEMENTARY-OUTPUT ELEMENTS DECEMBER 1983 - REVISED MARCH 1968 FO R S Y M M E T R IC A L G E N E R A T IO N O F C O M PLEM EN TA R Y T T L S IG N A LS Switching Time Skew of the Complementary Outputs Is Typically 0.5 ns . . . Not More


    OCR Scan     		PDF SN54265, SN74265 SN54265 SN74265 TTL 7404 propagation delay

    SN74265

    Abstract: No abstract text available
    Text: TYPES SN54265,SN74265 QUADRUPLE COMPLEMENTARY-OUTPUT ELEMENTS REVISED DECEMBER 1983 FOR S Y M M E T R IC A L G E N E R A T IO N OF C O M P LE M E N T A R Y T T L SIG N A LS Sw itching Tim e Skew o f the Com plem entary O utputs Is T y p ic a lly 0.5 n s . . . Guaranteed


    OCR Scan     		PDF SN54265 SN74265

    TTL SN 7404

    Abstract: SN74265 TTL 7404 propagation delay SN54265 SWITCH debouncing 74265
    Text: TYPES SN54265, SN74265 QUADRUPLE COMPLEMENTARY-OUTPUT ELEMENTS FOR SY M M ETRICAL G ENERATIO N OF COM PLEM ENTARY T T L SIGNALS Switching Time Skew of the Complementary Outputs Is Typically 0.5 ns . . . Guaranteed to be No More than 3 ns at Rated Loading SN54265 . . . J OR W PACKAGE


    OCR Scan     		PDF SN54265, SN74265 SN54265 sn74265 TTL SN 7404 TTL 7404 propagation delay SWITCH debouncing 74265

    7404 not gate ic circuit diagrams

    Abstract: ic 7404 logic symbol SN74265 TTL SN 7404 w2ac
    Text: SN54265, SN74265 QUADRUPLE COMPLEMENTARY OUTPUT ELEMENTS DECEMBER 1983 - REVISED MARCH 1988 FO R S Y M M E T R IC A L G E N E R A T IO N O F C O M P L E M E N T A R Y T T L S IG N A L S SN54265 . . . J OR W PACKAGE SN7426S . . . N PACKAGE Switching Time Skew of the Complementary


    OCR Scan     		PDF SN54265, SN74265 SN54265 SN7426S SN54265 tr-754 7404 not gate ic circuit diagrams ic 7404 logic symbol TTL SN 7404 w2ac

    SN74ALS123

    Abstract: SN7401 74LS424 54175 SN74298 SN74265 SN74LS630 SN74LS69 National Semiconductor Linear Data Book Transistor AF 138
    Text: INDEX • FUNCTIONAL SELECTION GUIDE • NUMERICAL FUNCTION INTERCHANGEABILITY GUIDE GENERAL INFORMATION AND EXPLANATION OF NEW LOGIC SYMBOLS ORDERING INSTRUCTIONS AND MECHANICAL DATA 54/74 SERIES OF COMPATIBLE TTL CIRCUITS • PIN OUT DIAGRAMS 54/74 FAMILY SSI CIRCUITS


    OCR Scan     		PDF MIL-M-38510 SN74ALS123 SN7401 74LS424 54175 SN74298 SN74265 SN74LS630 SN74LS69 National Semiconductor Linear Data Book Transistor AF 138

    LG color tv Circuit Diagram schematics

    Abstract: texas ttl YJ 162A Texas Instruments TTL integrated circuits catalog SN74180 AC digital voltmeter using 7107 Sii 9024 MC3123 sn74ls860 SN7490AJ sn74243
    Text: IN D EXES Alphanumeric • Functional/Selection Guide IN T E R C H A N G E A B ILIT Y GUIDE G E N E R A L INFORM ATION O RD ERIN G IN STRUCTIO N S AND M ECH A N ICA L D A TA 5 4 /7 4 FA M ILIE S OF CO M PATIBLE T T L C IR C U ITS 54/74 F A M IL Y SSI C IR C U ITS


    OCR Scan     		PDF MIL-M-38510 38510/MACH 3186J Z501201 Z012510 Z011510 D022110 D022130 D021110 D021130 LG color tv Circuit Diagram schematics texas ttl YJ 162A Texas Instruments TTL integrated circuits catalog SN74180 AC digital voltmeter using 7107 Sii 9024 MC3123 sn74ls860 SN7490AJ sn74243

    SN7401

    Abstract: sn29601 SN7449 SN74298 SN74265 MC3021 SN54367 sn74142 signetics 8223 9370c
    Text: INDEX PAGE TTL Integrated Circuits Mechanical Data 1 TTL Interchangeability Guide 6 Functional Selection Guide 19 Explanation of Function Tables 38 54/74 Families of Compatible TTL Circuits 40 TTL INTEGRATED CIRCUITS MECHANICAL DATA J ceramic dual-in-line package


    OCR Scan     		PDF 24-lead SN74S474 SN54S475 SN74S475 SN54S482 SN74S482 LCC4270 SN54490 SN74490 SN54LS490 SN7401 sn29601 SN7449 SN74298 SN74265 MC3021 SN54367 sn74142 signetics 8223 9370c

    54S38

    Abstract: SN74298 SN74265 54175 NES 1004 naval specification 74L95 Transistor AF 138 07802-1 SN7437 SN54LS195A
    Text: m - G EN ER A L IN F O R M A TIO N INDEXES Numerical • Functional/Selection Guide O R D E R IN G INSTRUCTIO NS A N D M E C H A N IC A L D ATA 1 1 5 4/74 F A M IL Y SSI C IR CU ITS 2 I 54/74 F A M IL Y M S I/LSI C IR C U ITS 3 S E R IE S 29000 S S I C IR C U IT S


    OCR Scan     		PDF 38510/M D012510 D011520 D011510 54S38 SN74298 SN74265 54175 NES 1004 naval specification 74L95 Transistor AF 138 07802-1 SN7437 SN54LS195A

    ic 74266

    Abstract: SN 74266 ic 7404 not gate 7404 not gate ic SN74266 ttl 74266 TTL SN 7404 IC 7404 FOR NOT GATE sn74041 74266
    Text: TYPES SN&42I6, SN7426S QUADRUPLE COMPLEMENTARY-OUTPUT ELEMENTS FOR SYM M ETRICAL GENERATION OF COMPLEMENTARY TTL SIGNALS Switching Time Skew of the Complementary Outputs Is Typically 0.5 n s . . . Guaranteed to be No More than 3 ns at Rated Loading Full Fan-Out to 20 High-Level and 10


    OCR Scan     		PDF SN7426S SN54265 SN74266 ic 74266 SN 74266 ic 7404 not gate 7404 not gate ic ttl 74266 TTL SN 7404 IC 7404 FOR NOT GATE sn74041 74266

    SN7401

    Abstract: National Semiconductor 4045 transistor bf 175 74ALS569 74AS1008 SN7449 SN74ALS244A SN54ALS1000A SN74ALS519 SN54ALS27
    Text: GENERAL INFORMATION ORDERING INSTRUCTIONS AND MECHANICAL DATA FUNCTIONAL INDEX/SELECTION GUIDE PRODUCT GUIDE ADVANCED LOW-POWER SCHOTTKY AND ADVANCED SCHOTTKY CIRCUITS PROGRAMMABLE LOGIC ARRAYS BETA PRODUCTS EXPLANATION OF NEW LOGIC SYMBOLS CONNECTOR AND KEYBOARD PRODUCTS


    OCR Scan     		PDF SN54/74 SN54ALS8003 SN74ALS8003 SN7401 National Semiconductor 4045 transistor bf 175 74ALS569 74AS1008 SN7449 SN74ALS244A SN54ALS1000A SN74ALS519 SN54ALS27