POWER FAIL RESET FOR HC11
Original Publication Date: 1990-Oct-01
Included in the Prior Art Database: 2001-Nov-19
In very low cost applications with a single chip HCll, the MC34064 low-voltage detector for reset can be replaced by a simply zener diode. As shown in Figure 1, the zener diode VRl is connected from the 12V input supply to one of the micro's input capture pins (PA@ 1 or 2).