Power gates for Matt Venn's TinyTapeout (in SKY130)

(c) 2023 Harald Pretl, Institute for Integrated Circuits, Johannes Kepler University

Folder power_gate

This is a simple PMOS power gate with enable (thus integrated inverter) for TinyTapeout, implemented in sky130A.

Folder tt_pg_vdd_1

• A simple PMOS transistor for 1.8V-domain power switching.
• Pins: VPWR (1.8V), VGND, GPWR (switched VDD), ctrl (active low, pulling to VGND turns power-gate on, i.e. GPWR = VPWR; pulling to VPWR makes GPWR floating)
• $R_\mathrm{on} = 2\Omega$
• Used for 1xN tiles.
• Implemented in sky130A.

Folder tt_pg_vdd_2

• A simple PMOS transistor for 1.8V-domain power switching.
• Pins: VPWR (1.8V), VGND, GPWR (switched VDD), ctrl (active low, pulling to VGND turns power-gate on, i.e. GPWR = VPWR; pulling to VPWR makes GPWR floating)
• $R_\mathrm{on} = 1\Omega$
• Used for 2xN tiles.
• Implemented in sky130A.