**.subckt tb_mux2to1
VSS vss GND {vss} 
VDD vdd vss {vdd} 
Vref net1 vss PULSE(0 {vin} 0 1p 1p {Tref/2} {Tref}) DC {vin} AC 0 
x1 in_a vss A vdd in_b out_div net3 net4 net5 div_by_2
x2 vdd net2 net1 vss inverter_min_x2_pex_c
x3 vdd A net2 vss inverter_min_x4_pex_c
Vref1 selec_0 vss PULSE(0 {vin} 0 1p 1p {12.5n} {25n}) DC {vin} AC 0 
x7 vdd selec_0_neg selec_0 vss inverter_min_x4_pex_c
C8 out_b_0_1 vss 10f m=1
x4 vdd vss out_b_0_1 in_a selec_0_neg in_b selec_0 mux2to1
**** begin user architecture code


* Parameters
.param kp = 0.9
.param vdd = kp*1.8
.param vss = 0.0
.param vin = vdd
.param fref = 1e9
.param Tref = 1/fref
.param C = 1f
.param iref=100u

.options TEMP = 100.0
.options RSHUNT = 1e20

* Models
.lib ~/skywater/skywater-pdk/libraries/sky130_fd_pr_ngspice/latest/models/corners/sky130.lib SS
.include ~/sky130-mpw2-fulgor/inverter_min_x2/sch/simulations/inverter_min_x2_pex_c.spice
.include ~/sky130-mpw2-fulgor/inverter_min_x4/sch/simulations/inverter_min_x4_pex_c.spice


* Data to save
.save all

.ic v(A) = 0.0

* Simulation
.control
	tran 0.01ns 50ns
	*meas tran Tosc trig v(out) val=0.9 fall=5 targ v(out) val=0.9 fall=15
	*meas tran Td1  trig v(out) val=0.9 fall=5 targ v(out1) val=0.9 rise=6
	*meas tran Td2  trig v(out1) val=0.9 fall=5 targ v(out2) val=0.9 rise=6
	*meas tran Td3  trig v(out2) val=0.9 fall=5 targ v(out) val=0.9 rise=5
	*let  T = Tosc/10.0
	*let  f = 1/T
	*let Td = 1/(2*3*f)
	*print T f Td
	*write tb_div_by_2_tran.raw
	plot v(selec_0) v(out_b_0_1)+8
	*plot v(out_div) v(out)
.endc


**** end user architecture code
**.ends

* expanding   symbol:  div_by_2/sch/div_by_2.sym # of pins=9
* sym_path: /home/dhernando/sky130-mpw2-fulgor/div_by_2/sch/div_by_2.sym
* sch_path: /home/dhernando/sky130-mpw2-fulgor/div_by_2/sch/div_by_2.sch
.subckt div_by_2  nCLK_2 vss CLK vdd CLK_2 out_div nout_div o1 o2
*.ipin CLK
*.opin CLK_2
*.iopin vss
*.iopin vdd
*.opin nCLK_2
*.iopin nout_div
*.iopin o2
*.iopin o1
*.iopin out_div
x1 vdd out_div nout_div vss nout_div CLK_d nCLK_d DFlipFlop
x2 vdd CLK_d CLK nCLK_d vss clock_inverter
x3 vdd o1 out_div vss inverter_min_x2
x4 vdd CLK_2 o1 vss inverter_min_x4
x5 vdd o2 nout_div vss inverter_min_x2
x6 vdd nCLK_2 o2 vss inverter_min_x4
.ends


* expanding   symbol:  mux2to1/sch/mux2to1.sym # of pins=7
* sym_path: /home/dhernando/sky130-mpw2-fulgor/mux2to1/sch/mux2to1.sym
* sch_path: /home/dhernando/sky130-mpw2-fulgor/mux2to1/sch/mux2to1.sch
.subckt mux2to1  vdd vss in_a out_a_0 selec_0 out_a_1 selec_0_neg
*.iopin in_a
*.ipin selec_0_neg
*.ipin selec_0
*.iopin out_a_0
*.iopin out_a_1
*.iopin vdd
*.iopin vss
x4 selec_0 out_a_1 in_a selec_0_neg vss vdd trans_gate_mux2to8
x5 selec_0_neg out_a_0 in_a selec_0 vss vdd trans_gate_mux2to8
.ends


* expanding   symbol:  DFlipFlop/sch/DFlipFlop.sym # of pins=7
* sym_path: /home/dhernando/sky130-mpw2-fulgor/DFlipFlop/sch/DFlipFlop.sym
* sch_path: /home/dhernando/sky130-mpw2-fulgor/DFlipFlop/sch/DFlipFlop.sch
.subckt DFlipFlop  vdd Q nQ vss D CLK nCLK
*.iopin vdd
*.iopin vss
*.opin Q
*.opin nQ
*.ipin D
*.ipin CLK
*.ipin nCLK
x1 vdd D_d D nD_d vss clock_inverter
x2 vdd nA A D_d nD_d CLK vss latch_diff
x3 vdd nQ Q A nA nCLK vss latch_diff
.ends


* expanding   symbol:  clock_inverter/sch/clock_inverter.sym # of pins=5
* sym_path: /home/dhernando/sky130-mpw2-fulgor/clock_inverter/sch/clock_inverter.sym
* sch_path: /home/dhernando/sky130-mpw2-fulgor/clock_inverter/sch/clock_inverter.sch
.subckt clock_inverter  vdd CLK_d CLK nCLK_d vss
*.ipin CLK
*.iopin vdd
*.iopin vss
*.opin nCLK_d
*.opin CLK_d
x5 vdd nCLK_d net1 vss trans_gate
x1 vdd CLK_d net2 vss inverter_cp_x1
x2 vdd net2 CLK vss inverter_cp_x1
x3 vdd net1 CLK vss inverter_cp_x1
.ends


* expanding   symbol:  inverter_min_x2/sch/inverter_min_x2.sym # of pins=4
* sym_path: /home/dhernando/sky130-mpw2-fulgor/inverter_min_x2/sch/inverter_min_x2.sym
* sch_path: /home/dhernando/sky130-mpw2-fulgor/inverter_min_x2/sch/inverter_min_x2.sch
.subckt inverter_min_x2  vdd out in vss
*.iopin vss
*.ipin in
*.opin out
*.iopin vdd
XM2 out in vdd vdd sky130_fd_pr__pfet_01v8 L=0.15 W=0.84 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29'
+ pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W'
+ sa=0 sb=0 sd=0 mult=2 m=2 
XM1 out in vss vss sky130_fd_pr__nfet_01v8 L=0.15 W=0.42 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29'
+ pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W'
+ sa=0 sb=0 sd=0 mult=2 m=2 
.ends


* expanding   symbol:  inverter_min_x4/sch/inverter_min_x4.sym # of pins=4
* sym_path: /home/dhernando/sky130-mpw2-fulgor/inverter_min_x4/sch/inverter_min_x4.sym
* sch_path: /home/dhernando/sky130-mpw2-fulgor/inverter_min_x4/sch/inverter_min_x4.sch
.subckt inverter_min_x4  vdd out in vss
*.iopin vss
*.ipin in
*.opin out
*.iopin vdd
XM2 out in vdd vdd sky130_fd_pr__pfet_01v8 L=0.15 W=0.84 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29'
+ pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W'
+ sa=0 sb=0 sd=0 mult=4 m=4 
XM1 out in vss vss sky130_fd_pr__nfet_01v8 L=0.15 W=0.42 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29'
+ pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W'
+ sa=0 sb=0 sd=0 mult=4 m=4 
.ends


* expanding   symbol:  trans_gate_mux2to8/sch/trans_gate_mux2to8.sym # of pins=6
* sym_path: /home/dhernando/sky130-mpw2-fulgor/trans_gate_mux2to8/sch/trans_gate_mux2to8.sym
* sch_path: /home/dhernando/sky130-mpw2-fulgor/trans_gate_mux2to8/sch/trans_gate_mux2to8.sch
.subckt trans_gate_mux2to8  en_pos out in en_neg vss vdd
*.iopin en_neg
*.ipin in
*.opin out
*.iopin en_pos
*.iopin vdd
*.iopin vss
XM2 out en_neg in vdd sky130_fd_pr__pfet_01v8 L=0.15 W=1.25 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29'
+ pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W'
+ sa=0 sb=0 sd=0 mult=3 m=3 
XM1 out en_pos in vss sky130_fd_pr__nfet_01v8 L=0.15 W=1.25 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29'
+ pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W'
+ sa=0 sb=0 sd=0 mult=3 m=3 
.ends


* expanding   symbol:  latch_diff/sch/latch_diff.sym # of pins=7
* sym_path: /home/dhernando/sky130-mpw2-fulgor/latch_diff/sch/latch_diff.sym
* sch_path: /home/dhernando/sky130-mpw2-fulgor/latch_diff/sch/latch_diff.sch
.subckt latch_diff  vdd nQ Q D nD CLK vss
*.iopin vdd
*.iopin vss
*.ipin D
*.opin nQ
*.ipin CLK
*.ipin nD
*.opin Q
XM3 net1 CLK vss vss sky130_fd_pr__nfet_01v8 L=0.15 W=1.25 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29'
+ pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W'
+ sa=0 sb=0 sd=0 mult=3 m=3 
XM4 nQ Q vdd vdd sky130_fd_pr__pfet_01v8 L=0.15 W=0.95 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29'
+ pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W'
+ sa=0 sb=0 sd=0 mult=2 m=2 
XM5 Q nQ vdd vdd sky130_fd_pr__pfet_01v8 L=0.15 W=0.95 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29'
+ pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W'
+ sa=0 sb=0 sd=0 mult=2 m=2 
XM1 nQ D net1 vss sky130_fd_pr__nfet_01v8 L=0.15 W=0.95 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29'
+ pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W'
+ sa=0 sb=0 sd=0 mult=2 m=2 
XM2 Q nD net1 vss sky130_fd_pr__nfet_01v8 L=0.15 W=0.95 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29'
+ pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W'
+ sa=0 sb=0 sd=0 mult=2 m=2 
.ends


* expanding   symbol:  trans_gate/sch/trans_gate.sym # of pins=4
* sym_path: /home/dhernando/sky130-mpw2-fulgor/trans_gate/sch/trans_gate.sym
* sch_path: /home/dhernando/sky130-mpw2-fulgor/trans_gate/sch/trans_gate.sch
.subckt trans_gate  vdd out in vss
*.iopin vss
*.ipin in
*.opin out
*.iopin vdd
XM2 out vss in vdd sky130_fd_pr__pfet_01v8 L=0.15 W=1.25 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29'
+ pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W'
+ sa=0 sb=0 sd=0 mult=3 m=3 
XM1 out vdd in vss sky130_fd_pr__nfet_01v8 L=0.15 W=1.25 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29'
+ pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W'
+ sa=0 sb=0 sd=0 mult=3 m=3 
.ends


* expanding   symbol:  inverter_cp_x1/sch/inverter_cp_x1.sym # of pins=4
* sym_path: /home/dhernando/sky130-mpw2-fulgor/inverter_cp_x1/sch/inverter_cp_x1.sym
* sch_path: /home/dhernando/sky130-mpw2-fulgor/inverter_cp_x1/sch/inverter_cp_x1.sch
.subckt inverter_cp_x1  vdd out in vss
*.iopin vss
*.ipin in
*.opin out
*.iopin vdd
XM2 out in vdd vdd sky130_fd_pr__pfet_01v8 L=0.15 W=1.25 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29'
+ pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W'
+ sa=0 sb=0 sd=0 mult=3 m=3 
XM1 out in vss vss sky130_fd_pr__nfet_01v8 L=0.15 W=1.25 nf=1 ad='int((nf+1)/2) * W/nf * 0.29' as='int((nf+2)/2) * W/nf * 0.29'
+ pd='2*int((nf+1)/2) * (W/nf + 0.29)' ps='2*int((nf+2)/2) * (W/nf + 0.29)' nrd='0.29 / W' nrs='0.29 / W'
+ sa=0 sb=0 sd=0 mult=3 m=3 
.ends

.GLOBAL GND
** flattened .save nodes
.end