National Semiconductor

Description

Hysteresis Voltage (Typical):. 0.9 V at VDD =5V. 2.3 V at VDD = 10 V. 3.5 V at VDD = 15 V. Noise Immunity Greater Than 50%. No Limit On Input Rise High Voltage Type (20V Rating). Schmitt Trigger Action with No External Components. Hysteresis Voltage (Typ.) - 0.9V at VDD = 5V. - 2.3V at VDD = 10V . the MM74HC14 and the MM74C14 (or CD40106 ). Because the actual power consumed varies with frequency and component values, its best to determine it CMOS or TTL, a digital process can be controlled by counting leading and/or trailing edges of the oscillator output. Suggested Schmitt Triggers are CD40106 ,. The LTC 1799 resistor-programmed oscillator elimi- nates the hassle in designing an accurate square-wave frequency reference. A single resistor (RSET )