Patent ID: 11966241
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Control (Instruments)
Classification: CPC G  H | IPC G  H

Claim 12:
13. An input/output device, comprising:
one or more voltage level shifters configured to shift one or more first signals within a first voltage range to one or more second signals within a second voltage range;
one or more logic circuits coupled to the one or more voltage level shifters and configured to output one or more switching signals according to the one or more second signals;
a low dropout regulator configured to regulate a power supply voltage provided to the one or more logic circuits or the one or more voltage level shifters, the low dropout regulator comprising a plurality of current paths connected in parallel, wherein the one or more logic circuits comprises a first logic circuit and a second logic circuit having different high supply voltages and different low supply voltages; and
a post driver circuit coupled to the one or more logic circuits and configured to output one or more output signals to a pad in response to the one or more switching signals, wherein a high supply voltage of the post driver circuit is greater than a high supply voltage of the one or more voltage level shifters.