STMicroelectronics STEVAL-MKI236A

Overview

STEVAL-MKI236A from STMicroelectronics is a dual-sensor adapter board for the ASM330LHB 6-axis inertial measurement unit, designed to plug directly into a standard DIL24 socket and provide full pin access for rapid prototyping in automotive V2X and ADAS development environments.

For engineers reviewing the STEVAL-MKI236A datasheet, STEVAL-MKI236A pinout, STEVAL-MKI236A application, or STEVAL-MKI236A equivalent, this board enables immediate integration with the STEVAL-MKI109D evaluation platform, supports MEMS Studio GUI operation, and delivers ready-to-use decoupling on VDD/VDDIO rails without external component addition.

Technical Context

The STEVAL-MKI236A implements a passive, zero-logic adapter architecture with two identical ASM330LHB devices mounted top/bottom on a single PCB, each with independent I²C (SCL/SDA), interrupt (INT1–INT4), and chip-select (CS1/CS2) signal routing to the DIL24 edge connector.

It provides dedicated 10 µF and 100 nF decoupling capacitors per VDD and VDDIO rail, maintains strict signal integrity for high-accuracy IMU timing paths, and preserves the ASM330LHB's ASIL-B–compliant sensor interface layout without level-shifting or buffering.

Key Specifications

Availability

STEVAL-MKI236A is available at Aetrix Electronics and suitable for automotive V2X communication systems, ADAS sensor fusion validation, and industrial motion capture prototyping requiring stable component supply and traceable evaluation hardware sourcing.

Supply support for STEVAL-MKI236A includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, specializing in microcontrollers, sensors, power management, and automotive-grade ICs with broad industrial and automotive certification coverage.

This board belongs to ST's professional MEMS evaluation tool family, engineered specifically to accelerate qualification and system-level testing of high-accuracy inertial sensors in safety-critical automotive applications.

FAQ

Does STEVAL-MKI236A include a microcontroller or processing capability?

No. The STEVAL-MKI236A is a passive adapter board with no embedded MCU, memory, or firmware. It routes all ASM330LHB signals directly to the DIL24 connector and relies entirely on an external host platform-such as the STEVAL-MKI109D-for data acquisition, configuration, and sensor fusion processing.

Can STEVAL-MKI236A be used independently without STEVAL-MKI109D?

Yes, but only with a compatible host system providing I²C master control, interrupt handling, and power regulation matching ASM330LHB's VDD (1.71–3.6 V) and VDDIO (1.71–3.6 V) requirements. No onboard voltage translation or logic-level adaptation is included.

What is the orientation relationship between the two ASM330LHB devices on the board?

U1 (top-side device) is mounted with its Y-axis oriented downward; U2 (bottom-side device) is mounted with its Y-axis oriented toward JP1 (pins 1–12). This mechanical arrangement enables differential motion sensing and cross-axis calibration verification in rigid-body test setups.

Is the STEVAL-MKI236A pinout identical to the ASM330LHB's native 14-pin LGA package?

No. The board maps the ASM330LHB's 14-pin LGA signals-including SDO/SA0, CS, INT1–INT4, SCL, SDA, VDD, VDDIO, and GND-to a 24-pin DIL socket layout. Pin assignments follow ST's standardized evaluation board pinout convention, not the bare die package pin order.