SCH1633‑D01 (Murata) Automotive‑Grade 6‑Axis IMU Inertial Measurement Unit | 3‑Axis Gyroscope + 3‑Axis Accelerometer

Gyroscope (3‑Axis)

‑ Standard Range: ±300°/s, optional ±125°/s, ±62.5°/s. Ultra‑high‑speed 2000 dps is not supported (difference from SCH16T‑K10).

‑ Gyro Bias Instability: ≤0.5 °/h

‑ Angular Random Walk: ≤0.05 °/√h

‑ Full‑temperature Linearity: 0.02 dps

Accelerometer (3‑Axis Main Channel)

‑ Main Range: ±8 g; redundant auxiliary accelerometer channel up to ±26 g

‑ Full‑temperature Linearity: 0.06 m/s²

‑ Dual accelerometer channels for safety redundancy check

Electrical & Package

‑ Package: SOIC‑24, dimensions 11.8 × 13.4 × 2.9 mm, 24‑pin SMD surface‑mount device, reflow‑soldering compatible

‑ Supply Voltage: VDD 3.0‑3.6 V; IO Voltage 1.7‑3.6 V

‑ Communication Interface: Safe‑SPI v2.0, supports 16‑bit / 20‑bit output. Equipped with SYNC sync input, timestamp and Data‑Ready signal for multi‑sensor time alignment in vehicle systems.

‑ Selectable Filter Bandwidth: 13 / 30 / 68 / 235 / 280 / 370 Hz

‑ Operating Temperature: ‑40℃ ~ +110℃

‑ Automotive Qualifications: AEC‑Q100 Grade1; ISO26262 ASIL‑B+ (ASIL‑D achievable upon system‑level integration)

‑ Built‑in over 200 internal signal monitoring items and hardware self‑diagnosis for fault detection

‑ Factory‑calibrated for orthogonality error, temperature and offset; calibration parameters stored inside the chip

Core Functions

‑ Output raw digital data of 3‑axis angular velocity and 3‑axis acceleration for MCU to compute pitch, roll and yaw attitude angles.

‑ Dual redundant accelerometer channels perform data verification to meet automotive functional‑safety requirements with fault reporting capability.

‑ High precision and low drift enable Dead‑Reckoning (DR) to maintain vehicle position output when GNSS signal is lost.

‑ Timestamp synchronization facilitates data fusion among cameras, radar, GNSS and Beidou and other external sensors.

‑ Built‑in axis orthogonality compensation eliminates customer‑side production‑line orthogonality calibration and reduces OEM production costs.

‑ Multi‑selectable filter bandwidth adapts to different working conditions including dynamic driving and static leveling.

Application Scope

On‑board Autonomous Driving / ADAS (Primary Market)

‑ Autonomous‑driving domain controllers, high‑precision GNSS‑INS integrated navigation; Dead‑Reckoning (DR) under GNSS signal outage

‑ Advanced driver‑assistance systems, lane‑keeping, Electronic Stability Control (ESC), roll‑over prevention systems

‑ Dynamic leveling for adaptive headlights, HUD attitude compensation

Special Mobile Equipment

‑ On‑board inertial navigation for special vehicles and construction machinery; attitude sensing for unmanned work vehicles

Surveying & Positioning Equipment

‑ Vehicle‑mounted surveying, mobile‑measurement INS modules; high‑precision positioning terminals

Key Differences

‑ SCH1633‑D01: Automotive‑grade, ASIL‑B+ functional safety, maximum gyro range ±300 dps, targeted for automotive ADAS and autonomous driving.

‑ SCH16T‑K10: Industrial‑grade, ultra‑high gyro range ±2000 dps, applied for UAVs, quadruped robots and high‑speed robots; no automotive functional‑safety certification.