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  • 74138 3-Line To 8-Line Demultiplexers

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74138 3-Line To 8-Line Demultiplexers

  • Stock: 27
  • SKU: 0225 | DAA241
  • Rs. 16.52 (inc GST)
    Rs.14.00 + GST

    Qty :

GST Invoice on all Purchase. So you will be eligible to take input tax credit.

IF component not in Stock or require more quantity or want to buy in bulk e-mail us your requirements on: dnatechindia "at" gmail.com.

Shipping : Due to Covid-19 situation delivery will be affected. Delivery period due to covid-19 issue will be from 4 - 12 days depending upon your location.

74138 3-Line To 8-Line Demultiplexers

The LSTTL/MSI SN54/74LS138 is a high speed 1-of-8 Decoder/Demultiplexer.

This device is ideally suited for high speed bipolar memorychip select address decoding. The multiple input enables allow parallel expansion to a 1-of-24 decoder using just three LS138 devices or to a 1-of-32decoder using four LS138s and one inverter. The DM74LS138 decodes one-of-eight lines, based uponthe conditions at the three binary select inputs and thethree enable inputs. Two active-low and one active-highenable inputs reduce the need for external gates or inverterswhen expanding. A 24-line decoder can be implementedwith no external inverters, and a 32-line decoderrequires only one inverter. An enable input can be used asa data input for demultiplexing applications.The DM74LS139 comprises two separate two-line-to-fourlinedecoders in a single package. The active-low enableinput can be used as a data line in demultiplexing application.The LS138 is fabricated with theSchottky barrier diode process for high speed and is completely compatiblewith all Motorola TTL families.

  • Demultiplexing Capability
  • Multiple Input Enable for Easy Expansion
  • Typical Power Dissipation of 32 mW
  • Active Low Mutually Exclusive Outputs
  • Input Clamp Diodes Limit High Speed Termination Effects

We have Various sizes of 7400 Series IC. Check out our complete collection of 7400 Series IC.


If you are in Nashik you can buy this Electronic Component at our local shop at New CBS, Nashik or you can place order online and get it delivered at your doorstep anywhere in India.

Features Of 74138 3-Line To 8-Line Demultiplexers

  • Designed specifically for high speed:Memory decodersData transmission systems
  • DM74LS138 3-to-8-line decoders incorporates 3 enableinputs to simplify cascading and/or data reception
  • Schottky clamped for high performance
  • Typical propagation delay (3 levels of logic)DM74LS138 21 ns 
  • Typical power dissipationDM74LS138 32 mW 
  • Active Low Mutually Exclusive Outputs
  • Input Clamp Diodes Limit High Speed Termination Effects

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