Part LM555
Description Timer
Category Timer
Manufacturer National Semiconductor
Size 790.20 KB
National Semiconductor
LM555
LM555 reference image

Representative LM555 image (package may vary by manufacturer)

Overview

The LM555 is a highly stable device for generating accurate time delays or oscillation. Additional terminals are provided for triggering or resetting if desired.

  • Direct replacement for SE555/NE555
  • Timing from microseconds through hours
  • Operates in both astable and monostable modes
  • Adjustable duty cycle
  • Output can source or sink 200 mA
  • Output and supply TTL compatible
  • Temperature stability better than 0.005% per ˚C
  • Normally on and normally off output
  • Available in 8-pin MSOP package