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.
The LMC555 is a CMOS version of the classic 555 timer, offering the same timing functions with much lower power dissipation and supply current spikes. It is available in SOIC, MSOP, MDIP, and an 8‑bump micro‑SMD package, and is pin‑for‑pin compatible with standard 555 timers.
The document includes detailed electrical characteristics, absolute maximum ratings, ordering information, package dimensions, and example application circuits for monostable, astable, pulse‑width, and pulse‑position modulation modes.
| Typical Power Dissipation (5 V) | < 1 mW |
|---|---|
| Supply Voltage Range | 1.5 V – 15 V |
| Maximum Output Current | 100 mA |
| Astable Frequency Capability | Up to 3 MHz |
| Operating Temperature Range | -40 °C – +85 °C |
The LMC555 dissipates less than 1 mW typical power at a 5 V supply.
The device is guaranteed to operate at a supply voltage of 1.5 V.
The LMC555 can source or sink up to 100 mA of output current.
It is rated for operation from –40 °C to +85 °C.