The CD40106B Hex Schmitt Trigger is a monolithic complementary MOS (CMOS) integrated circuit constructed with N and P-channel enhancement transistors. The positive and negative-going threshold voltages, VTa and VTb, show low variation with respect to temperature (typ 0.0005V/°C at VDD e 10V), and hysteresis, VTa b VTb t 0.2 VDD is guaranteed. All inputs are protected from damage due to static discharge by diode clamps to VDD and VSS.