MM54C914

MM54C914 MM74C914 Hex Schmitt Trigger with Extended Input Voltage February 1988 MM54C914 MM74C914 Hex Schmitt Trigger with Extended Input Voltage General Description The MM54C914 MM74C914 is a monolithic CMOS Hex Schmitt trigger with special input protection scheme This scheme allows the input voltage levels to exceed VCC or ground by at least 10V (VCC b 25V to GND a 25V) and is valuable for applications involving voltage level shifting or mismatched power supplies The positive and negative-going threshold voltages VT a and VTb show low variation with respect to temperature (typ 0 0005V C at VCC e 10V) And the hysteresis VT a b VTb t 0 2 VCC is guaranteed Features Y Hysteresis Special input protection Wide supply voltage range High noise immunity Low power TTL compatibility Y Y Y Y 0 45 VCC (typ ) 0 2 VCC guaranteed Extended Input Voltage Range 3V to 15V 0 7 VCC (typ ) Fan out of 2 driving 74L Connection Diagram Dual-In-Line Package Order Number MM54C914 or MM74C914 TL F 5917 – 1 Top View Special Input Protection 8V 25V for the diodes TL F 5917 – 2 C1995 National Semiconductor Corporation TL F 5917 RRD-B30M105 Printed in U S A Absolute Maximum Ratings (Note 1) Storage Temperature Range (TS) Power Dissipation Dual-In-Line Small Outline Operating VCC Range Absolute Maximum (VCC) Lead Temperature (TL) (Soldering 10 seconds) b 65 C to a 150 C If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors...