v {xschem version=3.0.0 file_version=1.2 

* Copyright 2021 Stefan Frederik Schippers
* 
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*     https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.

}
G {}
K {}
V {}
S {}
E {}
N 660 -350 700 -350 { lab=ZN}
N 780 -350 820 -350 { lab=ZZ}
N 500 -370 540 -370 { lab=AA}
N 500 -330 540 -330 { lab=BB}
N 230 -410 230 -390 { lab=VSS}
N 230 -490 230 -470 { lab=VCC}
N 230 -230 230 -210 { lab=VSS}
N 230 -310 230 -290 { lab=AA}
N 230 -90 230 -70 { lab=VSS}
N 230 -170 230 -150 { lab=BB}
N 340 -410 340 -390 { lab=0}
N 340 -490 340 -470 { lab=VSS}
C {devices/title.sym} 160 -30 0 0 {name=l1 author="Stefan Schippers"}
C {sky130_tests/lvnand.sym} 590 -350 0 0 {name=x1 WidthN=1 LenN=0.15 WidthP=1 LenP=0.15 VCCPIN=VCC VSSPIN=VSS m=1}
C {devices/lab_wire.sym} 690 -350 0 0 {name=l2 sig_type=std_logic lab=ZN}
C {devices/lab_wire.sym} 820 -350 0 0 {name=l3 sig_type=std_logic lab=ZZ}
C {devices/lab_pin.sym} 500 -370 0 0 {name=l4 sig_type=std_logic lab=AA}
C {devices/lab_pin.sym} 500 -330 0 0 {name=l5 sig_type=std_logic lab=BB}
C {devices/vsource.sym} 230 -440 0 0 {name=V1 value=1.8}
C {devices/lab_pin.sym} 230 -390 0 0 {name=l6 sig_type=std_logic lab=VSS}
C {devices/lab_pin.sym} 230 -490 0 0 {name=l7 sig_type=std_logic lab=VCC}
C {devices/vsource.sym} 230 -260 0 0 {name=V2 value="pulse 0 1.8 0 1n 1n 10n 20n"}
C {devices/lab_pin.sym} 230 -210 0 0 {name=l8 sig_type=std_logic lab=VSS}
C {devices/lab_pin.sym} 230 -310 0 0 {name=l9 sig_type=std_logic lab=AA}
C {devices/vsource.sym} 230 -120 0 0 {name=V3 value="pulse 0 1.8 0 1n 1n 13n 26n"}
C {devices/lab_pin.sym} 230 -70 0 0 {name=l10 sig_type=std_logic lab=VSS}
C {devices/lab_pin.sym} 230 -170 0 0 {name=l11 sig_type=std_logic lab=BB}
C {sky130_tests/not.sym} 740 -350 0 0 {name=x3 m=1 
+ W_N=1 L_N=0.15 W_P=2 L_P=0.15 
+ VCCPIN=VCC VSSPIN=VSS}
C {devices/code.sym} 20 -440 0 0 {name=NGSPICE
only_toplevel=true
value="
.control
tran 0.1n 200n
save all
plot aa bb+2 zz+4
.endc
" }
C {devices/code.sym} 20 -240 0 0 {name=TT_MODELS
only_toplevel=true
format="tcleval( @value )"
value="
** opencircuitdesign pdks install
.lib $::SKYWATER_MODELS/sky130.lib.spice tt

"
spice_ignore=false}
C {devices/vsource.sym} 340 -440 0 0 {name=V4 value=0}
C {devices/lab_pin.sym} 340 -390 0 0 {name=l12 sig_type=std_logic lab=0}
C {devices/lab_pin.sym} 340 -490 0 0 {name=l13 sig_type=std_logic lab=VSS}