Patent ID: 7737871

Claim:
An integrated circuit, comprising: a first microcontroller unit located on a first die including a first processing core for providing a parallel stream of data; a second microcontroller unit located on a second die including a second processing core for receiving the parallel stream of data; the first die galvanically isolated from the second die; and voltage isolation circuitry located on each of the first and second dies for transmitting data from the parallel data stream between the first microcontroller unit and the second microcontroller unit in a serial data stream and maintaining the galvanic isolation between the first microcontroller unit and the second microcontroller unit, the voltage isolation circuitry distributing a first portion of a high voltage isolation signal across a first portion of a galvanically isolated link associated with the first microcontroller unit and distributing a second portion of the high voltage isolation signal across a second portion of the galvanically isolated link associated with the second microcontroller unit.