The RC_OSC22M is a low power consumption internal Resistor/Capacitor oscillator with trimming operating frequency. This OSC needs input Bandgap reference voltage to maintain stable operating frequency and decrease power supply effects. The RC-oscillator cell is useful for applications that require an oscillator that utilizes non-external components and has a relaxed frequency tolerance. An enable / disable mode is provided to disable the oscillator. When the oscillator is in the disable mode, the output (CLK22M) goes to a logic level low. It is processed using SMIC’s 0.35μm logic process with an operating supply voltage range of 2.0V ~ 5.5V and a junction temperature range of -40˚ ~ 125˚C.