
* Copyright 2020 The SkyWater PDK Authors
*
* 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

* Ingore first line
.SUBCKT sky130_fd_bd_sram__openram_cell_1rw_1r_replica bl0 br0 bl1 br1 wl0 wl1 vdd gnd
** N=9 EP=8 IP=0 FDC=16
*.SEEDPROM

* Bitcell Core
M0 Q wl1 bl1 gnd npd W=0.21 L=0.15 m=1 mult=1
M1 gnd vdd Q gnd npd W=0.21 L=0.15 m=1 mult=1
M2 gnd vdd Q gnd npd W=0.21 L=0.15 m=1 mult=1
M3 bl0 wl0 Q gnd npd W=0.21 L=0.15 m=1 mult=1
M4 vdd wl1 br1 gnd npd W=0.21 L=0.15 m=1 mult=1
M5 gnd Q vdd gnd npd W=0.21 L=0.15 m=1 mult=1
M6 gnd Q vdd gnd npd W=0.21 L=0.15 m=1 mult=1
M7 br0 wl0 vdd gnd npd W=0.21 L=0.15 m=1 mult=1
M8 vdd Q vdd vdd ppu W=0.14 L=0.15 m=1 mult=1
M9 Q vdd vdd vdd ppu W=0.14 L=0.15 m=1 mult=1

* drainOnly PMOS
M10 vdd wl1 vdd vdd ppu L=0.08 W=0.14 m=1 mult=1
M11 Q wl0 Q vdd ppu L=0.08 W=0.14 m=1 mult=1

* drainOnly NMOS
M12 bl1 gnd bl1 gnd npd W=0.21 L=0.08 m=1 mult=1
M14 br1 gnd br1 gnd npd W=0.21 L=0.08 m=1 mult=1

.ENDS