Patent ID: 8884372

Claim:
An integrated circuit device, comprising: a plurality of external input/output connections; a microcontroller comprising: a digital processor; a memory coupled to the digital processor; and at least one analog signal compatible single pole single throw complementary metal oxide semiconductor (CMOS) switch coupled to and controlled by the digital processor and configured to switch signals through a first and a second external input/output connection of said plurality of external input/output connections, wherein the at least one analog signal compatible single pole single throw CMOS switch comprises a first switching node coupled with the first external input/output connection of said plurality of external input/output connections and a second switching node coupled with the second external input/output connection of said plurality of external input/output connections, and wherein the at least one analog signal compatible single pole single throw CMOS switch provides a low impedance between the first external input/output connection and the second external input/output connection when the digital processor asserts a control signal at a first logic level thereto, and a high impedance between the first external input/output connection and the second external input/output connection when the digital processor asserts the control signal at a second logic level thereto.