Hangzhou Silan Microelectronics SC7A20HTR

The SC7A20H is a high-precision digital 3-axis accelerometer IC featuring rich built-in functionality, low power consumption, compact size, and accurate measurements. The chip communicates with an MCU via I²C/SPI interface, and acceleration measurement data can be retrieved through interrupt or polling methods. The INT1 and INT2 interrupt pins provide multiple internally auto-detected interrupt signals, suitable for various motion detection applications. Interrupt sources include 6D/4D orientation detection, free-fall detection, sleep and wake-up detection, and single/double-tap detection. The chip incorporates a high-precision calibration module for accurate compensation of sensor offset and gain errors. It supports four selectable full-scale measurement ranges of ±2G, ±4G, ±8G, and ±16G for flexible external acceleration measurement, with an output data rate selectable between 1.56Hz and 4.27kHz. The chip features a built-in self-test function, allowing customers to verify system functionality during system testing without the need for complex turntable testing. The package is LGA-12-2x2x1.0.

• Wide voltage range: 1.71V – 3.6V
• 1.8V-compatible digital I/O
• Supply current as low as 2μA @ 1.8V @ 1.56Hz in low-power mode
• ±2G/±4G/±8G/±16G dynamic full-scale range
• 12-bit data output
• I²C/SPI digital output interface
• 6D/4D orientation detection
• Free-fall detection
• Single/double-tap and motion detection
• Programmable interrupt generation
• Built-in self-test
• Built-in FIFO
• 10000g high-g shock resistance

• Mobile & Tablet
• Indoor Navigation
• Image Rotation
• Motion-Activated User Interface
• Gaming