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LMC555: LMC555 max timer calculation

Part Number: LMC555

Hi Sir

when LMC555   for Monostable Operation mode.

For the LMC555 max timer can use formula "t=1.1xRxC seconds"  to calculation

R= 50 Gohm

C=22uF

t=1.1x50Gohm x22uF=13.99 days

if can be or has any limit for the timer?