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MMA7456L Datasheet(PDF) 19 Page - Freescale Semiconductor, Inc |
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MMA7456L Datasheet(HTML) 19 Page - Freescale Semiconductor, Inc |
19 / 36 page Sensors Freescale Semiconductor 19 MMA7456L BASIC CONNECTIONS Pin Descriptions Figure 14. Pinout Description Table 8. Pin Descriptions Recommended PCB Layout for Interfacing Accelerometer to Microcontroller Figure 15. I2C Connection to MCU AVDD GND DVDD_IO INT1/DRDY INT2 N/C SDO SDA/SDI/SDO N/C IADDR0 N/C GND Top View Pin # Pin Name Description Pin Status 1 DVDD_IO Digital Power for I/O pads Input 2 GND Ground Input 3 N/C No internal connection. Leave unconnected or connect to Ground. Input 4 IADDR0 I2C Address Bit 0 Input 5 GND Ground Input 6 AVDD Analog Power Input 7CS SPI Enable (0), I2C Enable (1) Input 8 INT1/DRDY Interrupt 1/ Data Ready Output 9 INT2 Interrupt 2 Output 10 N/C No internal connection. Leave unconnected or connect to Ground. Input 11 N/C No internal connection. Leave unconnected or connect to Ground. Input 12 SDO SPI Serial Data Output Output 13 SDA/SDI/SDO I2C Serial Data (SDA), SPI Serial Data Input (SDI), 3-wire interface Serial Data Output (SDO) Open Drain/ Input/ Output 14 SCL/SPC I2C Serial Clock (SCL), SPI Serial Clock (SPC) Input GND Vdd Vdd_IO SCL SDA INT2 INT1/DRDY MCU 0.1uF 0.1uF Address set bit (bit 0) Vdd Vdd 10uF 10uF 10k ? 10k ? GND Vdd Vdd_IO SCL SDA INT2 INT1/DRDY MCU 0.1uF 0.1uF Address set bit (bit 0) Vdd Vdd 10uF 10uF 10k ? 10k ? R2 R1 VDD VDD VDD VDD |
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