Integrated microprocessor system for safety-critical regulations

A circuit thereof; the safety key device, is used for adjusting and control vehicle the duty the electronic brake system, particularly comprising a plurality of a sets of electronic interaction, (- 25,25), provided with of the features device (25,25) and electric wire of power (30), a device comprises a first and second type a device, first type a device comprises at least a device for redundant microprocessor system (1) and a touch device and device (19), the sample a device comprises at least a device and driver (11,15,24,35) and vital circuit (- 5,5, 7,7) are, and first and second typeA feature device is grouped to the sharing chip or the chip support member. The invention can be used for vehicle's electronic brake system, or uses, is used for adjusting the driving strength of vehicle, or is used for controlling the electric control vehicle brake, or for controlling the vehicle constrained system electronic control system.