MM74C914

MM74C914 Hex Schmitt Trigger with Extended Input Voltage October 1987 Revised January 1999 MM74C914 Hex Schmitt Trigger with Extended Input Voltage 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− ≥ 0.2 VCC is guaranteed. Features s Hysteresis: s Special Range 0.45 VCC (typ.) 0.2 VCCguaranteed protection: Extended Input Voltage input s Wide supply voltage range: 3V to 15V s High noise immunity: 0.7 VCC (typ.) s Low power TTL compatibility: Fan out of 2 driving 74L Ordering Code: Order Number MM74C914M MM74C914N Package Number M14A N14A Package Description 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150” Narrow 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code. Connection Diagrams Pin Assignments for DIP Special Input Protection Top View 8V ≈ 25V for the diodes. © 1999 Fairchild Semiconductor Corporation DS005917.prf www.fairchildsemi.com MM74C914 Absolute Maximum Ratings(Note 1) Voltage at ...