finding equivalent Ic(ALARM SYSTEM)

Discussion in 'General Electronics Chat' started by mohsal, Sep 9, 2013.

  1. mohsal

    Thread Starter New Member

    Sep 9, 2013
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    0
    hi guys
    Please help me with an equivalent Ic to HEF40244BP
    its function is octal non-invertig buffers with 3-state outputs
    this ic HEF40244BP used in SELCO M4100 unit as cylinder gas alarm system,and its data sheet is:
    http://www.alldatasheet.com/datasheet-pdf/pdf/17697/PHILIPS/HEF40244BP.html
    via internet searching i tried to install the HD74LS244P and 74LS244N but it isn't the corrective alternative ic
    also unfortunately the required ic HEF40244BP not available in Egypt
    plz suggest the equivalent ic or the equivalent set of ics
    &
    how i find tha equivalent electronics component?
    Thanks.
     
    Last edited: Sep 9, 2013
  2. t06afre

    AAC Fanatic!

    May 11, 2009
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    What is the supply voltage for the chip. Your chip is a LOCMOS HE4000B series chip so it has quite different supply voltage range than say the 74LS244 type chip
     
  3. mohsal

    Thread Starter New Member

    Sep 9, 2013
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    Dear t06arfe thank you very much for your reply,i think supply voltage VDD in rang 3-15v DC, please open the datasheet link to check its supply voltage.
     
    Last edited by a moderator: Sep 11, 2013
  4. ian field

    Distinguished Member

    Oct 27, 2012
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    More likely a 74HC244 - the LS part has rigid TTL voltage spec and huge current draw compared to the 4000 series one.
     
  5. t06afre

    AAC Fanatic!

    May 11, 2009
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    Maybe my fault, but I meant the supply voltage then the chip is in the circuit. That is of importance
     
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