bb/tnor.py

   1 # Ternary NOR, implemented with CD4007
   2 #
   3
   4 nodes = ("A", "B", "TNOR_Out")
   5
   6 # Dual MOSFET Complementary Pair + Binary Inverter
   7 parts_generated = ["CD4007"]
   8 parts_consumed = ["MP1", "MP2", "MN1", "MN2"]
   9 parts_kept = ["RP", "RN"]
  10
  11 # Based on pinout from http://www.cedmagic.com/tech-info/data/cd4016.pdf
  12 pins = [
  13         {
  14             "A": ("CD4007", 6),
  15             "B": ("CD4007", 3),
  16             "TNOR_Out": "TNOR_Out",
  17             "$G_Vss": [("CD4007", 4), ("CD4007", 7)],
  18             "$G_Vdd": ("CD4007", 14),
  19
  20
  21             # Internal nodes
  22
  23             # Connect these two nodes together
  24             "NI": [("CD4007", 13), ("CD4007", 2)],
  25             # Connects to resistors
  26             "NP": ("CD4007", 1),
  27             "NN": [("CD4007", 8), ("CD4007", 5)],
  28
  29         }
  30        ]
  31
  32 # Always connected once if use once or more
  33 global_pins = {
  34         # TODO: always connect binary inverter, since we'll never be using it,
  35         # but to prevent MOSFETs from switching on and off, wasting power?
  36         # May need a change in this data structure to support multiple connections to $G_Vdd/Vss
  37         }
  38