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  • 555 Timer?

    devesh

    Member

    Updated: Oct 22, 2024
    Views: 974
    Why 555 Timer Is So Called As?that's A Very Common Question But I Didn't That In Book.so Help Me Out
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  • reachrkata

    Member • Jan 22, 2007

    If you refer to any text book indicating the internal construction of a 555 timer, you'll see that Vcc is divided internally using 3 resistors to get 2/3 Vcc and 1/3 Vcc used later in comparators.

    The values of these 3 resistors are 5 kilo Ohm each and hence the name 555.
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  • Jerry

    Member • Jan 22, 2007

    reachrkata
    If you refer to any text book indicating the internal construction of a 555 timer, you'll see that Vcc is divided internally using 3 resistors to get 2/3 Vcc and 1/3 Vcc used later in comparators.

    The values of these 3 resistors are 5 kilo Ohm each and hence the name 555.
    😁
    Perfect! 😁 The timer gets its name from the resistors!

    Jerry
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