The LMC555 device is a CMOS version of
the industry standard 555 series general-purpose timers. In addition to the standard
SOIC, VSSSOP, and PDIP packages, the LMC555 is also available in a chip-sized,
8-bump DSBGA package using TI’s DSBGA package technology. The LMC555 offers the same
capability of generating accurate time delays and frequencies as the LM555, but with
much lower power dissipation and supply current spikes. When operated as a one-shot,
the time delay is precisely controlled by a single external resistor and capacitor.
In astable mode, the oscillation frequency and duty cycle are accurately set by two
external resistors and one capacitor. TI’s LMCMOS process extends both the frequency
range and the low supply capability.