Semiconductor device, method for fabricating the same and electronic devices including the semiconductor device are provided. The present invention provides a personal flotation device, suitable for children, pets or the like, which will activate automatically in response to changes in pressure, e. A digitally controlled delay line may be implemented as part of a digital delay locked loop, and calibration parameters may be provided to a slave DLL having a similarly implemented delay line. In another embodiment, bias circuitry is coupled to bit lines to favor the un-programmed state. The bottom of the stem and the stem orifice cooperate with the top of a release valve in the top of the aerosol can, so that the nozzle is supplied through the stem orifice.