Integrated microprocessor system for safety-critical regulations

An integrated circuit arrangement for safety-critical applications, for controlling tasks in an electronic brake system for motor vehicles, comprising:

• a plurality of electronic, cooperating functional groups (25, 25′);
• a plurality of electric lines (30) provided to interconnect the functional groups (25, 25′), wherein the functional groups includes groups of a first type and second type, with the functional groups of the first type comprising a functional group redundant microprocessor system (1) and the functional group input/output devices (19), and the functional groups of the second type comprising the functional groups actuator drivers (11, 15, 24, 35) and safety circuits (5, 5′, 7, 7′), and with the functional groups of the first type and the second type being grouped on a joint chip or chip support member (23);
• wherein the functional groups are protected against one another at least partly by isolated areas, wherein the isolated areas are doped guard rings or etched barriers such as trenches or deep trenches;
• and
• wherein the microprocessor system cross-links the functional groups of the first type, which comprise substantially digital circuit components, and the functional groups of the second type, which substantially comprise analog circuit components for actuating efficient consumers, and in particular the safety circuits in such a fashion that individual safety monitoring of the single functional groups is rendered possible.