|  | *--------------------------------------------------------------------------- | 
|  | * SPDX-FileCopyrightText: 2020 Efabless Corporation | 
|  | * 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. | 
|  | * | 
|  | * SPDX-License-Identifier: Apache-2.0 | 
|  | *--------------------------------------------------------------------------- | 
|  | * Simple testbench mainly to check SPICE model conversion from CDL | 
|  | * Plots the transient response of the smallest inverter in the HD standard cell library | 
|  |  | 
|  | .lib "/home/tim/projects/efabless/tech/SW/sky130A/libs.tech/ngspice/sky130.lib.spice" tt | 
|  | .include "/home/tim/projects/efabless/tech/SW/sky130A/libs.ref/sky130_fd_sc_hd/spice/sky130_fd_sc_hd.spice" | 
|  |  | 
|  | * .option TEMP=27 | 
|  |  | 
|  | X0 in vss vss vdd vdd out sky130_fd_sc_hd__inv_1 | 
|  |  | 
|  | V0 vdd vss PWL(0n 0.0 30n 1.8) | 
|  | V1 vss 0 0.0 | 
|  |  | 
|  | Vin in vss PWL(0n 0.0 100n 0.0 500n 1.8) | 
|  |  | 
|  | * Transient analysis | 
|  | .control | 
|  | tran 1n 1u | 
|  | plot V(in) V(out) | 
|  | .endc | 
|  | .end |