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STMicroelectronics STEVAL-MKI122V1
- Part No.:
- STEVAL-MKI122V1
- Manufacturer:
- STMicroelectronics
- Category:
- Expansion Boards, Daughter Cards
- Package:
- Datasheet:
-
STEVAL-MKI122V1.pdf
- Description:
- DIL24 ADAPTER BOARD LSM330DLC
- Quantity:
- Payment:
- Shipping:
Inventory:2,255
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Product details
Overview
STEVAL-MKI122V1 from STMicroelectronics is an adapter board for the LSM330DLC 3-axis accelerometer and 3-axis gyroscope MEMS sensor, providing full pin access via a standard DIL-24 socket interface. It integrates decoupling capacitors (10 nF, 100 nF, 10 µF), supports dual VDD/VDD_IO supplies, and enables direct plug-in evaluation with STEVAL-MKI109V2/V3 motherboards running Unico GUI or custom firmware.
For engineers reviewing the STEVAL-MKI122V1 datasheet, STEVAL-MKI122V1 pinout, STEVAL-MKI122V1 application, or STEVAL-MKI122V1 equivalent, key considerations include DIL-24 socket compatibility, LSM330DLC signal routing fidelity (including DRDY_G/INT2_G, INT1_A, CS_G, SDA_A/G), power supply decoupling implementation, and motherboard bridge interface requirements with 32-bit microcontroller-based host systems.
Technical Context
The board implements a passive breakout architecture with no active logic or level-shifting-signals are routed 1:1 from LSM330DLC pins to DIL-24 terminals. Power domains are segregated: VDD (2.2–3.6 V) for core sensor operation and VDD_IO (1.71–3.6 V) for digital I/O, each supported by dedicated ceramic decoupling (10 nF + 100 nF on VDD; 100 nF + 10 µF on VDD_IO).
It provides native support for both I²C (SCL_A/G, SDA_A/G, CS_A/CS_G) and interrupt-driven operation (INT1_A, INT2_A, INT1_G, DRDY_G/INT2_G, DEN_G), preserving all timing-critical sensor interface signals without buffering or translation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| DIL Socket | Standard 24-pin dual in-line socket footprint for mechanical and electrical mating with evaluation motherboards. |
| Supported Sensor | LSM330DLC only-pinout and layout are specific to its 24-lead QFN package (4 × 4 mm, 0.5 mm pitch). |
| VDD Supply Range | 2.2 V to 3.6 V-powers accelerometer and gyroscope cores; decoupled with 10 nF + 100 nF ceramics. |
| VDD_IO Range | 1.71 V to 3.6 V-powers digital I/O including I²C and interrupt outputs; decoupled with 100 nF + 10 µF. |
| Interrupt Signals | INT1_A, INT2_A, INT1_G, DRDY_G/INT2_G, DEN_G-all routed directly with no pull-up/pull-down or conditioning. |
| I²C Interface | SCL_A/G and SDA_A/G shared between accelerometer and gyroscope; CS_A and CS_G enable independent chip select. |
Availability
STEVAL-MKI122V1 is available at Aetrix Electronics and suitable for MEMS sensor prototyping, inertial measurement unit (IMU) development, and industrial motion-sensing applications requiring stable component supply and rapid hardware iteration.
Supply support for STEVAL-MKI122V1 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 specializing in microcontrollers, sensors, power management, and automotive ICs, with strong vertical integration and broad industrial design support.
This adapter belongs to ST's STEVAL (ST Evaluation) platform-designed specifically to accelerate MEMS sensor evaluation by providing standardized, motherboard-compatible breakout solutions with validated signal integrity and power delivery.
FAQ
Does STEVAL-MKI122V1 include the LSM330DLC sensor?
No. The board is a passive adapter only-it provides the socket and routing for the LSM330DLC but does not include the sensor IC. Users must source and mount the LSM330DLC separately. The board ships unpopulated, as confirmed in the data brief and schematic.
Which motherboards is STEVAL-MKI122V1 compatible with?
It is fully compatible with STEVAL-MKI109V2 and STEVAL-MKI109V3 motherboards, both of which feature a 32-bit STM32 microcontroller acting as a USB-to-sensor bridge. Compatibility is mechanical (DIL-24 socket alignment) and electrical (pin mapping matches the LSM330DLC signal definitions).
Can STEVAL-MKI122V1 be used with other LSM330-series sensors?
No. Pinout and decoupling are designed exclusively for the LSM330DLC. Other variants (e.g., LSM330DL, LSM330A) have different pin assignments, supply configurations, and register maps-using them risks incorrect signal routing or power domain mismatch.
Is external power required, or does it draw power from the motherboard?
It draws all power (VDD and VDD_IO) from the host motherboard via the DIL-24 socket. No external power supply is needed or supported-the board has no onboard regulators or power input terminals, as shown in the schematic and data brief.
STEVAL-MKI122V1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- iNEMO
- Packaging:
- Bulk
- Product Status:
- Active
- Platform:
- Professional MEMS Tool
- Type:
- Sensor
- Function:
- Accelerometer, Gyroscope
- Utilized IC / Part:
- LSM330DLC
- Contents:
- Board(s)
STEVAL-MKI122V1 FAQ
1.How can I place an order for STEVAL-MKI122V1 through Aetrix?
Please submit a Request for Quotation (RFQ) for STEVAL-MKI122V1 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-MKI122V1 reliable?
The price and inventory of STEVAL-MKI122V1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STEVAL-MKI122V1 is usually 5 days.
3.What payment methods are accepted for STEVAL-MKI122V1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STEVAL-MKI122V1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STEVAL-MKI122V1?
STEVAL-MKI122V1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STEVAL-MKI122V1 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-MKI122V1?
For technical support, including STEVAL-MKI122V1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STEVAL-MKI122V1 requirements.
6.How does Aetrix verify that STEVAL-MKI122V1 is sourced from the original manufacturer or authorized distributors?
All STEVAL-MKI122V1 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-MKI122V1 meets industry standards.
7.What is the process for return or replacement of STEVAL-MKI122V1?
All STEVAL-MKI122V1 units undergo pre-shipment inspection (PSI). If there is an issue with STEVAL-MKI122V1, 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-MKI122V1 part is unused and in its original packaging.
Return procedure for STEVAL-MKI122V1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STEVAL-MKI122V1 Tags
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