examples/cmos/cmos_cells_digital.sp

   1
   2 .SUBCKT BUF A Y
   3 .model buffer1 d_buffer
   4 Abuf A Y buffer1
   5 .ENDS NOT
   6
   7 .SUBCKT NOT A Y
   8 .model not1 d_inverter
   9 Anot A Y not1
  10 .ENDS NOT
  11
  12 .SUBCKT NAND A B Y
  13 .model nand1 d_nand
  14 Anand [A B] Y nand1
  15 .ENDS NAND
  16
  17 .SUBCKT NOR A B Y
  18 .model nor1 d_nor
  19 Anand [A B] Y nor1
  20 .ENDS NOR
  21
  22 .SUBCKT DLATCH E D Q
  23 .model latch1 d_latch
  24 Alatch D E null null Q nQ latch1
  25 .ENDS DLATCH
  26
  27 .SUBCKT DFF C D Q
  28 .model dff1 d_dff
  29 Adff D C null null Q nQ dff1
  30 .ENDS DFF
  31