The interface circuit between single-chip accelerometer MMA1220D and microcontroller

The microcontroller within A / D converter can use PIC MCU within A / D converter produced by the Microchip. MMA1220D`s state end and self-test end are connected to the P1, P0 ports of ?C, its output voltage is sent to the A / D converter input end. C1, C2 are the power supply decoupling capacitors. A / D converter`s reference voltage side ( UREF ) is conne..

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