National Semiconductor LMC555 Manuals

The LMC555 is a CMOS version of the industry standard 555 series general purpose timers.

This document introduces the characteristics and features of the LMC555 CMOS timer

LMC555 is a CMOS version of the industry standard 555 series general purpose timers. It offers the same capability of generating accurate time delays and frequencies as the LM555 but with much lower power dissipation and supply current spikes. The time delay is controlled by a single external resistor and capacitor, and the oscillation frequency and duty cycle are accurately set by two external resistors and one capacitor. The LMCMOS™ process extends both the frequency range and low supply capability.