STK8321

The STK8321 from STK is a low-profile, capacitive 3-axis MEMS accelerometer designed for a wide range of motion-sensing applications. It provides digital output via I2C and SPI interfaces, with a 12-bit resolution for precise data conversion.

This accelerometer features dynamically selectable full-scale ranges of ±2g, ±4g, or ±8g, catering to various sensitivity requirements. It operates with low voltage, supporting an internal domain voltage of 1.7V to 3.6V and an I/O voltage range of 1.62V to 3.6V. The device is capable of configurable sample rates from 14 to 2000 samples per second and boasts high shock survivability up to 10000g.

Designed for extended operation, the STK8321 is guaranteed to function within a temperature range of -40°C to +85°C. It is housed in a compact 2.0mm x 2.0mm x 1.0mm LGA package, suitable for space-constrained designs. The accelerometer includes on-chip interrupt controllers for motion-triggered signal generation and a 32-frame FIFO buffer for efficient data handling.

Key features include low noise, two physical interrupts, and a sleep mode for low-power consumption. The STK8321 is RoHS compliant and halogen-free, making it an environmentally preferred product for applications such as display orientation, gaming, vibration monitoring, pedometers, and activity trackers.