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    74 Series Logic

    74 Series Logic

    A range of classic 74 series logic chips from Silicon ARK

    The older hard to find items are tested unused NOS ( New Old Stock ) in perfect condition.

    Modern 74's will be NEW Stock and RoHS Compliant.

    All varients are listed:  74xxx (original) , 74LSxxx (low power Schottky TTL) , 74HCxxx (high speed CMOS) , 74HTCxxx (HC version with LS TTL compatible inputs), 

    So as to make one for one replacement selection easier we also list the same chips but by different manufacturers, for complete compatibility.

    Power requirements: 74LS: 5V +/- 0.25V , 74HC: 2 to 6V   , 74HCT: 5V +/- 0.5V    HC and HCT devices are static sensitive.

    To search for all the available options for a single device simply key in the basic number inthe top search box i.e  7401 .... 7474    or  74HC01, 74HC74      or 74LS01, 74LS74   .....  

     

    74LS266 (SN74LS266N) quad 2-input exclusive  NOR gate - Motorola
    place custom text here -66 %
    Brand: Motorola Model: 74LS266 (SN74LS266N) quad 2-input exclusive NOR gate - Motorola
    SN74LS266N quad 2-input exclusive NOR gates with open collector outputs by Motorola.   Package: 14-pin DIP   Download Motorola SN74LS266N datasheet:   Status: NOS (New Old Stock)    Individually tested components: YES &n..
    £1.18 £0.40
    74LS266 (SN74LS266N) quad 2-input exclusive  NOR gate - Texas Instruments
    place custom text here -66 %
    Brand: Texas Instruments Model: 74LS266 (SN74LS266N) quad 2-input exclusive NOR gate-Texas
    SN74LS266N quad 2-input exclusive NOR gates with open collector outputs by Texas Instruments.   Package: 14-pin DIP   Download Texas Instruments SN74LS266N datasheet:  Status: NOS (New Old Stock)  Tested components: YES  ..
    £1.18 £0.40
    74LS266 (T74LS266B1) quad 2-input exclusive  NOR gate - STMicroelectronics
    place custom text here -66 %
    Brand: STMicroelectronics Model: 74LS266 (T74LS266B1) quad 2-input exclusive NOR gate - STM
    T74LS266B1 quad 2-input exclusive NOR gates with open collector outputs by STMicroelectronics.   Package: 14-pin DIP   Download STMicroelectronics T74LS266B1 datasheet:  Status: NOS (New Old Stock)  Tested components: YES  Ro..
    £1.18 £0.40
    74AC273 (74AC273PC) Octal D-type flip-flop - Fairchild
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    Brand: Fairchild Semiconductor Model: 74AC273 (74AC273PC) Octal D-type flip-flop - Fairchild
    74AC273PC Octal D-type flip-flops by Fairchild Semiconductor.     Package: 20-pin DIP    Download Fairchild 74AC273PC datasheet:     Status: RNOS (Rare New Old Stock)    now increasingly hard to source.    Individually ..
    £1.00
    74ALS273 (SN74ALS273N) octal D-type flip-flop - Texas Instruments
    place custom text here -23 %
    Brand: Texas Instruments Model: 74ALS273 (SN74ALS273N) octal flip-flop - Texas Instruments
    SN74ALS273N  Octal D-Type flip-flop by Texas Instruments.   Package: 20-pin DIP   Download Texas Instruments SN74ALS273N datasheet: Status: NOS  (New Old Stock)   Individually tested Components: YES   RoHS compliant: no&..
    £1.30 £1.00
    74F273 (74F273N)  octal D flip-flop with clear - Signetics
    place custom text here -16 %
    Brand: SIGNETICS Model: 74F273 (74F273N) octal D flip-flop with clear - Signetics
    74F273N  octal D flip-flop with clear  by Signetics.     package: 20-pin DIP    Awaiting Signetics datasheet please download Fairchild 74F273N datasheet:     Status: NOS (New Old Stock)    Individuall..
    £2.99 £2.50
    74F273 (74F273PC)  octal D flip-flop with clear - National Semiconductor
    place custom text here -16 %
    Brand: National Semiconductor Model: 74F273 (74F273PC) octal D flip-flop with clear - National
    74F273PC  octal D flip-flop with clear  by National Semiconductor.   Package: 20-pin DIP Download National 74F273N datasheet:  Status: NOS (New Old Stock)  Individually tested components: YES  RoHS compliant: no  ..
    £2.99 £2.50
    74HC273 (74HC273N) octal D-type flip-flop - Philips
    place custom text here -24 %
    Brand: Philips Electronics Model: 74HC273 (74HC273N) octal D-type flip-flop - Philips
    74HC273N  Octal D-Type flip-flop by Philips.   package: 20-pin PDIP  Download Philips 74HC273N datasheet: Status: NOS  (New Old Stock)   Individually tested components: YES  RoHS compliant: no   ..
    £0.85 £0.65
    74HC273 (M74HC273B1) octal D-type flip-flop - STMicroelectronics
    place custom text here -24 % Out Of Stock
    Brand: STMicroelectronics Model: 74HC273 (M74HC273B1) octal D-type flip-flop - STMicroelectronics
    M74HC273B1  Octal D-Type flip-flop by STMicroelectronics.   package: 20-pin PDIP  Download STMicroelectronics M74HC273B1 datasheet:   Status: NOS  (New Old Stock)   Tested Components: YES  RoHS compliant: no &n..
    £0.85 £0.65
    74HC273 (SN74HC273N) octal D-type flip-flop - Texas Instruments
    place custom text here -24 %
    Brand: Texas Instruments Model: 74HC273 (SN74HC273N) octal D-type flip-flop - Texas Instruments
    SN74HC273N  Octal D-Type flip-flop by Texas Instruments.   package: 20-pin DIP  Download Texas Instruments SN74HC273N datasheet: Status: NOS  (New Old Stock)   Individually tested components: YES   RoHS compliant: no &nb..
    £0.85 £0.65
    74HCT273 (CD74HCT273E)  octal D flip-flop with clear - Harris Semiconductor
    place custom text here -25 % Out Of Stock
    Brand: Texas Instruments Model: 74HCT273 (CD74HCT273E) octal D flip-flop with clear - Harris
    CD74HCT273E  octal D flip-flop with clear  by Harris Semiconductor.    package: 20- pin DIP Download Harris Semiconductor CD74HCT273E datasheet: Status: NOS (New Old Stock)  Tested components: YES  RoHS compliant: no   ..
    £0.67 £0.50
    74HCT273M  Octal D-Type Flip-Flop with Reset - Texas
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    Brand: Texas Instruments Model: 74HCT273M Octal D-Type Flip-Flop with Reset - Texas
    74HCT273M  Octal D-Type Flip-Flop with Reset in a 20 pin wide SOIC surface mount package by Texas Instruments. Download Texas Instruments 74HCT273M wide datasheet: status: NOS ( new Old Stock) RoHS compliant: no  ..
    £0.35
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