Datasheet ADXL363 (Analog Devices) - 9

ADXL363 Data Sheet PIN CONFIGURATION AND FUNCTION DESCRIPTIONS ND S G NC V 16 15 14 VDD I/O 1 13 GND NC 2 12 GND ADXL363 RESERVED 3 11 INT1 TOP VIEW (Not to Scale) SCLK 4 10 RESERVED ADC_IN 5 9 INT2 6 7 8 SI SO CS MO MI NOTES 1. NC = NO CONNECT. THIS PIN IS NOT
003
INTERNALLY CONNECTED.
1719- 1 Figure 3. Pin Configuration (Top View)
Table 8. Pin Function Descriptions Pin No. Mnemonic Description
1 VDD I/O Supply Voltage for Digital I/O. 2 NC No Connect. This pin is not internally connected. 3 RESERVED Reserved. Leave this pin unconnected, or connect it to GND. 4 SCLK SPI Communications Clock. 5 ADC_IN Input to Auxiliary ADC. 6 MOSI Master Output, Slave Input. SPI serial data input. 7 MISO Master Input, Slave Output. SPI serial data output. 8 CS SPI Chip Select, Active Low. Must be low during SPI communications. 9 INT2 Interrupt 2 Output. INT2 also serves as an input for synchronized sampling. 10 RESERVED Reserved. Leave this pin unconnected, or connect it to GND. 11 INT1 Interrupt 1 Output. INT1 also serves as an input for external clocking. 12 GND Ground. Ground this pin. 13 GND Ground. Ground this pin. 14 VS Supply Voltage. 15 NC No Connect. This pin is not internally connected. 16 GND Ground. Ground this pin. Rev. 0 | Page 8 of 48 Document Outline Features Applications General Description Functional Block Diagram Revision History Specifications ADXL363 Specifications Accelerometer Specifications Temperature Sensor Specifications 12-Bit ADC Specifications Absolute Maximum Ratings Thermal Resistance Recommended Soldering Profile ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Accelerometer Mechanical Device Operation Operating Modes Measurement Mode Wake-Up Mode Standby Selectable Measurement Ranges Selectable Output Data Rates Antialiasing Power/Noise Tradeoff Free Fall Detection ADC Analog Inputs Digital Output Temperature Sensor Power Savings Features Ultralow Power Consumption in All Modes, Operating All Sensors Motion Detection Activity Detection Referenced and Absolute Configurations Fewer False Positives Inactivity Detection Linking Activity and Inactivity Detection Default Mode Linked Mode Loop Mode Autosleep Using the Awake Bit FIFO System Level Power Savings Data Recording/Event Context Communications SPI Instructions Bus Keepers MSB Registers Additional Features External Clock Synchronized Data Sampling Self Test User Register Protection Serial Communications SPI Commands Read and Write Register Commands Read FIFO Command Multibyte Transfers Register Read/Write Auto-Increment Invalid Addresses and Address Folding Latency Restrictions Invalid Commands Register Map Register Details Device ID Registers Silicon Revision ID Register X-Axis Data (8 MSB) Register Y-Axis Data (8 MSB) Register Z-Axis Data (8 MSB) Register Status Register FIFO Entries Registers X-Axis Data Registers Y-Axis Data Registers Z-Axis Data Registers Temperature Data Registers ADC Data Registers Soft Reset Register Activity Threshold Registers Activity Time Register Inactivity Threshold Registers Inactivity Time Registers Activity/Inactivity Control Register FIFO Control Register FIFO Samples Register INT1/INT2 Function Map Registers Filter Control Register Power Control Register Self Test Register Applications Information Application Examples Device Configuration Autonomous Motion Switch Startup Routine Using External Timing Using an External Clock Using Synchronized Data Sampling How to Set Up Synchronized Data Sampling Power Power Supply Decoupling Power Supply Requirements FIFO Modes FIFO Disabled Oldest Saved Mode Stream Mode Triggered Mode FIFO Configuration FIFO Interrupts Retrieving Data from FIFO Interrupts Interrupt Pins Alternate Functions of Interrupt Pins Activity and Inactivity Interrupts Data Ready Interrupt Using FIFO Interrupts FIFO Watermark FIFO Ready Overrun Using Self Test Operation at Voltages Other Than 2.0 V Mechanical Considerations for Mounting Axes of Acceleration Sensitivity Layout and Design Recommendations Outline Dimensions Ordering Guide