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MPU-6000

MPU-6000 and MPU-6050 Product Specification Revision 3.3

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MPU-6000/MPU-6050 Product Specification

Document Number: PS-MPU-6000A-00

Revision: 3.3

Release Date: 5/16/2012

10 Serial Interface Considerations (MPU-6050)

10.1 MPU-6050 Supported Interfaces

The MPU-6050 supports I2C communications on both its primary (microprocessor) serial interface and its

auxiliary interface.

10.2 Logic Levels

The MPU-6050’s I/O logic levels are set to be either VDD or VLOGIC, as shown in the table below.

I/O Logic Levels vs. AUX_VDDIO

AUX_VDDIO

0

1

MICROPROCESSOR LOGIC LEVELS

(Pins: SDA, SCL, AD0, CLKIN, INT)

VLOGIC

VLOGIC

AUXILLARY LOGIC LEVELS

(Pins: AUX_DA, AUX_CL)

VLOGIC

VDD

Note: The power-on-reset value for AUX_VDDIO is 0.

VLOGIC may be set to be equal to VDD or to another voltage. However, VLOGIC must be ≤ VDD at all

times. When AUX_VDDIO is set to 0 (its power-on-reset value), VLOGIC is the power supply voltage for

both the microprocessor system bus and the auxiliary I2C bus, as shown in the figure of Section 10.3. When

AUX_VDDIO is set to 1, VLOGIC is the power supply voltage for the microprocessor system bus and VDD is

the supply for the auxiliary I2C bus, as shown in the figure of Section 10.4.

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