QST Manuals

QST QMI8658A Datasheet

The QMI8658A is a 6‑D MEMS inertial measurement unit that integrates a 3‑axis gyroscope and a 3‑axis accelerometer. It is offered in a compact 14‑pin LGA package (2.5 × 3.0 × 0.86 mm) and includes a built‑in motion‑co‑processor for applications such as smartphones, game controllers, robotic vacuums, and automotive security systems.

Key features include low‑noise sensors (13 mdps/√Hz gyroscope, 150 µg/√Hz accelerometer), a 1536‑byte FIFO, programmable data rates and filters, and support for multiple host interfaces (MIPI™ I3C, I2C, 3‑wire or 4‑wire SPI). The device operates over a wide temperature range of –40 °C to 85 °C and offers various motion‑detection functions such as tap, pedometer, and wake‑on‑motion.

Covers: General Information · Interface Operating · Package & Pin Information · System, Electrical and Electro‑Mechanical Characteristics · Register Map Overview · FIFO Description