blueroomelectronics Well-Known Member Dec 7, 2007 #1 Silly question, with a PIC 16F877A running at VDD 5V and PORTC inputs (Schmitt trigger) is the VHI 4.2V?
Silly question, with a PIC 16F877A running at VDD 5V and PORTC inputs (Schmitt trigger) is the VHI 4.2V?
W wschroeder New Member Dec 7, 2007 #2 From the datasheet normal schmitt input pins are 80% of Vdd, and RC3 and RC4 will trigger at 70% of Vdd. That's for Vih, high logic state.
From the datasheet normal schmitt input pins are 80% of Vdd, and RC3 and RC4 will trigger at 70% of Vdd. That's for Vih, high logic state.