ICM-20948 Gyroscope Magnetometer 9 Axis Sensor[Video]: Datasheet, Features, and Pinout
IMU ACCEL/GYRO/COMPI2C/SPI 24QFN
The ICM-20948 is the world's lowest-power 9-axis motion-tracking device. This article is going to talk about more detailed information about ICM-20948.

IMU position tracking device with ICM20948
Overview of ICM-20948
The ICM-20948 is the world's lowest-power 9-axis motion-tracking device, making it excellent for Smartphones, Tablets, Wearable Sensors, and Internet-of-Things (IoT) applications. An auxiliary I2C link to external sensors, on-chip 16-bit ADCs, programmable digital filters, an embedded temperature sensor, and programmable interrupts are all features of the ICM-20948. The gadget can operate at a voltage as low as 1.71V. I2C and high-speed SPI (7 MHz) communication interfaces are available.
ICM-20948 Features
• Lowest Power 9-Axis Device at 2.5 mW
• 3-Axis Gyroscope with Programmable FSR of ±250 dps, ±500 dps, ±1000 dps, and ±2000 dps
• 3-Axis Accelerometer with Programmable FSR of ±2g, ±4g, ±8g, and ±16g
• 3-Axis Compass with a wide range to ±4900 µT
• Onboard Digital Motion Processor (DMP)
• Android support
• Auxiliary I2C interface for external sensors
• On-Chip 16-bit ADCs and Programmable Filters
• 7 MHz SPI or 400 kHz Fast Mode I²C
• Digital-output temperature sensor
• VDD operating range of 1.71V to 3.6V
• MEMS structure hermetically sealed and bonded at the wafer level
• RoHS and Green compliant
ICM-20948 Pinout

ICM-20948 Pinout
Pin Descriptions
| PIN NUMBER | PIN NAME | PIN DESCRIPTION |
| 7 | AUX_CL | 2C Master serial clock, for connecting to external sensors |
| 8 | VDDIO | Digital I/O supply voltage |
| 9 | AD0 / SDO | 2C Slave Address LSB (AD0); SPI serial data output (SDO) |
| 10 | REGOUT | Regulator filter capacitor connection |
| 11 | FSYNC | Frame synchronization digital input. Connect to GND if unused |
| 12 | INT1 | Interrupt 1 |
| 13 | VDD | Power supply voltage |
| 18 | GND RESV | Power supply ground Reserved. Do not connect. |
| 19 | ||
| 20 | RESV AUX_DA nCS | Reserved. Connect to GND. I2C master serial data, for connecting to external sensors Chip select (SPI mode only) |
| 21 | ||
| 22 | ||
| 23 | SCL / SCLK | I2C serial clock (SCL); SPI serial clock (SCLK) |
| 24 | SDA / SDI | I2C serial data (SDA); SPI serial data input (SDI) |
| 1 – 6, 14 - 17 | NC | Do not connect |
ICM-20948 CAD Model

ICM-20948 Symbol

ICM-20948 Footprint
ICM-20948 Block Diagram

ICM-20948 Block Diagram
Specifications
- TypeParameter
- Factory Lead Time16 Weeks
- Mounting Type
The "Mounting Type" in electronic components refers to the method used to attach or connect a component to a circuit board or other substrate, such as through-hole, surface-mount, or panel mount.
Surface Mount - Package / Case
refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.
24-TFQFN Module Exposed Pad - Usage LevelIndustrial grade
- Operating Temperature
The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.
-40°C~85°C - Packaging
Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.
Tape & Reel (TR) - Part Status
Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.
Active - Moisture Sensitivity Level (MSL)
Moisture Sensitivity Level (MSL) is a standardized rating that indicates the susceptibility of electronic components, particularly semiconductors, to moisture-induced damage during storage and the soldering process, defining the allowable exposure time to ambient conditions before they require special handling or baking to prevent failures
1 (Unlimited) - Output Type
The "Output Type" parameter in electronic components refers to the type of signal or data that is produced by the component as an output. This parameter specifies the nature of the output signal, such as analog or digital, and can also include details about the voltage levels, current levels, frequency, and other characteristics of the output signal. Understanding the output type of a component is crucial for ensuring compatibility with other components in a circuit or system, as well as for determining how the output signal can be utilized or processed further. In summary, the output type parameter provides essential information about the nature of the signal that is generated by the electronic component as its output.
I2C, SPI - Sensor Type
In electronic components, the parameter "Sensor Type" refers to the specific type of sensor technology used in a particular component to detect and measure physical phenomena such as light, temperature, pressure, motion, or proximity. Different sensor types utilize various principles and mechanisms to convert the detected input into an electrical signal that can be processed by the electronic component. Common sensor types include photodiodes, thermistors, accelerometers, and proximity sensors, each designed for specific applications and environments. Understanding the sensor type is crucial for selecting the right component for a given task and ensuring accurate and reliable sensing capabilities in electronic systems.
Accelerometer, Gyroscope, Magnetometer, 9 Axis - RoHS Status
RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.
ROHS3 Compliant
ICM-20948 Circuit

ICM-20948 Circuit
ICM-20948 Absolute Maximum rating
| PARAMETER | RATING |
| Supply Voltage, VDD | 0.5V to +4V |
| Supply Voltage, VDDIO | -0.3V to +2.5V |
| REGOUT | -0.5V to 2V |
| Input Voltage Level (AUX_DA, AD0, FSYNC, INT, SCL, SDA) | -0.5V to VDD + 0.5V |
| Acceleration (Any Axis, unpowered) | 20,000g for 0.2 ms |
| Operating Temperature Range | -40°C to +105°C |
| Storage Temperature Range | -40°C to +125°C |
| Electrostatic Discharge (ESD) Protection | 2kV (HBM); 200V (MM) |
| Latch-up | JEDEC Class II (2),125°C ±100 mA |
ICM-20948 Solution Using I2C Interface
The ICM-20948 is an I2C master to the optional external sensor. The ICM-20948 has limited capabilities as an I2C Master and depends on the system processor to manage the initial configuration of any auxiliary sensors. The ICM-20948 has an interface bypass multiplexer, which connects the system processor I2C bus pins 23 and 24 (SCL and SDA) directly to the auxiliary sensor I2C bus pins 7 and 21 (AUX_CL and AUX_DA).

Once the auxiliary sensors have been configured by the system processor, the interface bypass multiplexer should be disabled so that the ICM-20948 auxiliary I2C master can take control of the sensor I2C bus and gather data from the auxiliary sensors.
ICM-20948 Applications
• Smartphones and Tablets
• Wearable Sensors
• IoT Applications
ICM-20948 Package information

ICM-20948 Package information
ICM-20948 Manufacturer
InvenSense, Inc., a subsidiary of the TDK Group: InvenSense is the global leader in MEMS Motion, Audio, and Pressure Solutions for the consumer, industrial, automotive, and IoT business segments, and is part of TDK's Sensor System Business Company. TDK continues to push the frontiers of performance and quality, setting new benchmarks of innovation across numerous industries, with a very broad portfolio of MEMS 3/6/7/9 axis motion sensors, accompanied by the highest performing MEMS audio microphones, and pressure sensors.
Popularity by Region
What is the ICM20948?
The ICM-20948 is the world's lowest-power 9-axis motion-tracking device, making it excellent for Smartphones, Tablets, Wearable Sensors, and Internet-of-Things (IoT) applications. • In a 3 mm x 3 mm x 1 mm (24-pin QFN) package, there's a 3-axis gyroscope, 3-axis accelerometer, 3-axis compass, and a Digital Motion ProcessorTM (DMPTM).
What’s the operating temperature of the ICM20948?
-40°C~85°C.
What’s the packaging way of ICM20948?
Tape & Reel (TR).
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