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

Features:

Wide supply voltage range: 3V to 15V
High noise immunity: 0.70 VDD (typ.)
Low power TTL compatibility: Fan out of 2 driving 74L or 1 driving 74LS
Hysteresis:
o 0.40 VDD (typ.)
o 0.20 VDD (guaranteed)