The main function of TD321SCANH / TD521SCANH series is to convert TTL / CMOS level into isolated CAN bus differential level signais. The use of IC integrated technology allows for power isolation, signal isolation, CAN transceiver and bus protection ail in one single CAN bus transceiver module, which withstands an isolation test voltage of 3000VDC. Also, they can easily be embedded in the user's end equipment, to achieve fully functional CAN bus network connectivity. The products are using pick and place SMD packaging technology, thus enabling the use of fully automated processing.