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STMicroelectronics STEVAL-MKI226KA
- Part No.:
- STEVAL-MKI226KA
- Manufacturer:
- STMicroelectronics
- Category:
- Expansion Boards, Daughter Cards
- Package:
- Datasheet:
-
STEVAL-MKI226KA.pdf
- Description:
- DIL24 ADAPTER BOARD AIS25BA
- Quantity:
- Payment:
- Shipping:
Inventory:4,892
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Product details
Overview
STEVAL-MKI226KA from STMicroelectronics is an evaluation kit for the AIS25BA ultralow-noise, wide-bandwidth 3-axis digital accelerometer with TDM interface, designed for automotive sensing applications. It integrates the AIS25BATR in a center-mounted DIL24-compatible adapter board (STEVAL-MKIGI03B), includes decoupling capacitors on VDD and VDDIO, and supports direct system attachment via adhesive.
For engineers reviewing the STEVAL-MKI226KA datasheet, STEVAL-MKI226KA pinout, STEVAL-MKI226KA application, or STEVAL-MKI226KA equivalent, this kit enables rapid validation of AIS25BA performance in vibration monitoring, crash detection, and chassis dynamics systems using MEMS Studio GUI or custom firmware on the STEVAL-MKI109D host platform.
Technical Context
The kit implements a dedicated hardware interface between the AIS25BA sensor and the STEVAL-MKI109D evaluation platform via a flat cable, leveraging the STEVAL-MKIGI03B adapter board with full AIS25BA pin access. It supports both I²C (SCL/SDA) and TDM (BICK/WCLK/SDOUT/MCLK) communication protocols, with configurable interrupt outputs (INT1, INT2) and selectable chip select (CSX_H/CSX).
Power is supplied through dual rails: VDD (2.1–3.6 V) for core logic and VDDIO (1.71–3.6 V) for I/O, each independently decoupled with 100 nF and 1 µF capacitors. The board provides solder jumpers (R1–R10) to configure signal routing and optional pull-ups for I²C lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Sensor IC | AIS25BATR - 3-axis digital accelerometer with TDM/I²C interface, ±2g/±4g/±8g/±16g FS range |
| Bandwidth | Up to 2.5 kHz - enables high-fidelity capture of transient mechanical events in automotive suspension or powertrain |
| Output Interface | TDM (4-lane) + I²C - allows synchronized multi-sensor data streaming and register configuration without bus contention |
| Supply Voltage | VDD: 2.1–3.6 V; VDDIO: 1.71–3.6 V - supports mixed-voltage system integration with microcontroller I/O domains |
| Interrupt Outputs | INT1, INT2, INT1_H, INT2_H - configurable for motion detection, FIFO threshold, and data-ready signaling |
| Mounting Method | Adhesive-backed PCB - enables non-invasive, repeatable placement on test surfaces for modal analysis or road noise testing |
Availability
STEVAL-MKI226KA is available at Aetrix Electronics and suitable for automotive crash testing, vehicle dynamics validation, industrial vibration diagnostics, and MEMS sensor algorithm development requiring stable component supply and traceable evaluation hardware.
Supply support for STEVAL-MKI226KA 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, Switzerland, specializing in microcontrollers, sensors, power management, and automotive-grade ICs.
This kit belongs to ST's professional MEMS evaluation tool family, engineered to accelerate prototyping and characterization of high-performance inertial sensors in safety-critical and high-SNR automotive environments.
FAQ
Does STEVAL-MKI226KA include the AIS25BA sensor?
Yes. The STEVAL-MKI226KA contains the AIS25BATR 3-axis accelerometer mounted at the board center. It is fully assembled with required decoupling capacitors (100 nF on VDDIO, 1 µF on VDD) and configured for immediate connection to the STEVAL-MKI109D platform via flat cable and STEVAL-MKIGI03B adapter.
What software tools are supported for configuring the AIS25BA via this kit?
MEMS Studio - ST's official graphical user interface - is fully supported for real-time register access, data streaming, FFT analysis, and sensor fusion setup. Custom firmware can also be developed using ST's X-CUBE-MEMS1 middleware and HAL drivers compatible with the STEVAL-MKI109D's STM32F401RE MCU.
Can STEVAL-MKI226KA operate standalone without STEVAL-MKI109D?
No. The kit lacks onboard processing or USB interface. It requires connection to the STEVAL-MKI109D (or equivalent host with DIL24 socket and TDM/I²C bridge capability) to power the AIS25BA, configure registers, and stream sensor data to a PC or embedded host.
What mechanical mounting options does the board provide?
The board features pre-applied industrial-grade adhesive on its underside for direct bonding to test surfaces. No screws or fixtures are included. Mechanical stability relies on clean surface preparation and uniform pressure during application; repositioning after bonding is not recommended due to adhesive integrity loss.
STEVAL-MKI226KA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Platform:
- Professional MEMS Tool
- Type:
- Sensor
- Function:
- Accelerometer
- Utilized IC / Part:
- AIS25BA
- Contents:
- Board(s), Cable(s)
STEVAL-MKI226KA FAQ
1.How can I place an order for STEVAL-MKI226KA through Aetrix?
Please submit a Request for Quotation (RFQ) for STEVAL-MKI226KA on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STEVAL-MKI226KA reliable?
The price and inventory of STEVAL-MKI226KA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STEVAL-MKI226KA is usually 5 days.
3.What payment methods are accepted for STEVAL-MKI226KA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STEVAL-MKI226KA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STEVAL-MKI226KA?
STEVAL-MKI226KA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STEVAL-MKI226KA order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STEVAL-MKI226KA?
For technical support, including STEVAL-MKI226KA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STEVAL-MKI226KA requirements.
6.How does Aetrix verify that STEVAL-MKI226KA is sourced from the original manufacturer or authorized distributors?
All STEVAL-MKI226KA products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STEVAL-MKI226KA meets industry standards.
7.What is the process for return or replacement of STEVAL-MKI226KA?
All STEVAL-MKI226KA units undergo pre-shipment inspection (PSI). If there is an issue with STEVAL-MKI226KA, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STEVAL-MKI226KA part is unused and in its original packaging.
Return procedure for STEVAL-MKI226KA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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