devesh
devesh
Branch Unspecified
22 Jan 2007

555 Timer?

Why 555 Timer Is So Called As?that's A Very Common Question But I Didn't That In Book.so Help Me Out
reachrkata

reachrkata

Branch Unspecified
12 years ago
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.
😁
Jerry

Jerry

Branch Unspecified
12 years ago
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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