General Description
The 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 -25V to GND + 25V), and is valuable for applications involving voltage level shifting or mismatched power supplies.
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 the hysteresis, VT+ - VT- ³ 0.2 VCC is guaranteed.
Features
n Hysteresis: 0.45 VCC (typ.) 0.2 VCCguaranteed
n Special input protection: Extended Input Voltage Range
n Wide supply voltage range: 3V to 15V
n High noise immunity: 0.7 VCC (typ.)
n Low power TTL compatibility: Fan out of 2 driving 74L
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MM74C914N.PDF
