The LMC555 device is a CMOS version of the industry standard 555 series general-purpose timers. In addition to the standard package (SOIC, VSSSOP, and PDIP) the LMC555 is also available in a chip-sized package (8-bump DSBGA) 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 the astable mode the oscillation frequency and duty cycle are accurately set by two external resistors and one capacitor. The use of TI’s LMCMOS process extends both the frequency range and the low supply capability.

德克萨斯仪器lmc555cmx / NOPB
的lmc555装置是CMOS版本的工业标准的555系列通用定时器。除了标准的封装（SOIC封装，vsssop，和PDIP）的lmc555也可在芯片尺寸封装（8 dsbga）采用TI公司的dsbga封装技术。提供的lmc555产生精确的时间延迟和频率作为LM555同样的能力却有较低的功耗和电源电流尖峰。当一次操作时，时间延迟精确地由一个外部电阻器和电容器控制。在稳态模式的振荡频率和占空比是由两个外部电阻器和一个电容器精确设定。TI公司的lmcmos过程中使用扩展的频率范围和较低的供应能力。