STMicroelectronics STEVAL-MKI158V1

Overview

STEVAL-MKI158V1 from STMicroelectronics is an adapter board for the AIS3624DQ 3-axis digital accelerometer, providing full DIL24 socket compatibility, complete pin mapping, and pre-mounted decoupling capacitors (10 µF + 100 nF) on VDD. It enables rapid prototyping and direct integration into user applications requiring MEMS inertial sensing.

For engineers reviewing the STEVAL-MKI158V1 datasheet, STEVAL-MKI158V1 pinout, STEVAL-MKI158V1 application, or STEVAL-MKI158V1 equivalent, this board serves as a plug-in evaluation interface for AIS3624DQ-based motion sensing systems, supporting I²C/SPI communication, interrupt-driven event detection, and seamless integration with STEVAL-MKI109V2 motherboard and Unico GUI.

Technical Context

The board implements a passive, zero-configuration mechanical and electrical interface between the AIS3624DQ LGA-24 package and standard DIL24 sockets, preserving all signal integrity paths including dual interrupt outputs (INT_1, INT_2), SPI/3-wire and I²C-compatible serial interfaces (SDI/SDO/SDA, SPC/SCL), and independent VDD_IO supply routing.

It integrates mandatory power conditioning: a 10 µF bulk capacitor and 100 nF high-frequency bypass capacitor on the VDD rail, matching AIS3624DQ's recommended decoupling per ST AN4370 and datasheet Section 7.2, and maintains RoHS-compliant PCB construction with no active components or firmware.

Key Specifications

Availability

STEVAL-MKI158V1 is available at Aetrix Electronics and suitable for MEMS sensor evaluation, industrial motion prototyping, and embedded inertial system development requiring stable component supply and documented ST reference design support.

Supply support for STEVAL-MKI158V1 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, designing and manufacturing microcontrollers, sensors, power ICs, and analog/mixed-signal devices for industrial, automotive, and consumer applications.

This adapter belongs to ST's STEVAL (ST Evaluation) platform family, engineered specifically to accelerate validation and integration of ST MEMS motion sensors-enabling immediate hardware access without custom PCB design.

FAQ

Does STEVAL-MKI158V1 include the AIS3624DQ sensor?

No. The board is a passive adapter only and does not include the AIS3624DQ accelerometer IC. Users must separately source and mount the AIS3624DQ onto the board's footprint before use. The board provides all necessary routing, decoupling, and socket interface but contains no active silicon.

Which motherboard is required to operate STEVAL-MKI158V1 with a PC?

STEVAL-MKI158V1 requires the STEVAL-MKI109V2 motherboard, which hosts a 32-bit STM32 microcontroller acting as a USB-to-sensor bridge. This combination enables communication with ST's Unico GUI or custom host software via virtual COM port or HID interface.

Can STEVAL-MKI158V1 be used with other ST MEMS sensors?

No. The board is mechanically and electrically optimized exclusively for the AIS3624DQ LGA-24 package. Pin assignments, decoupling layout, and signal routing are specific to AIS3624DQ's pinout and electrical requirements, and are not compatible with other ST accelerometers such as LIS3DH or LSM6DSOX.

Is firmware or driver installation needed to use STEVAL-MKI158V1?

Yes-only when used with STEVAL-MKI109V2. The motherboard requires ST's Unico GUI software (Windows-only) or custom host code. No firmware resides on the STEVAL-MKI158V1 itself, as it contains no programmable elements; all configuration occurs on the host PC or MCU side.