NE555: NE555 frequency tolerance

Red Yen

Part Number: NE555

Hi Support

We need to calculate NE555DR frequency accuracy, according to the f value obtained by the formula, please help confirm whether the frequency tolerance in specifications was be defined?
The initial error of timing is +/- random, Does it affect the frequency accuracy?

over 5 years ago

0 Ron Michallick over 5 years ago

TI__Guru**** 164606 points

Red,

The initial timing error is the timer's contribution to frequency variance and drift. The variance for the timing resistors and capacitor are additional.

0 Ron Michallick over 5 years ago in reply to Ron Michallick

TI__Guru**** 164606 points

Red,

Just post a new reply if you need more assistance.

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NE555: NE555 frequency tolerance