STMicroelectronics STEVAL-MKI083V1

Overview

STEVAL-MKI083V1 from STMicroelectronics is an LPY450AL MEMS gyroscope adapter board designed for plug-in evaluation via standard DIL-24 socket, featuring full LPY450AL pinout, on-board VDD decoupling capacitors, and RoHS compliance. It enables rapid prototyping of angular rate sensing in user-defined systems when paired with the STEVAL-MKI109V2 motherboard.

For engineers reviewing the STEVAL-MKI083V1 datasheet, STEVAL-MKI083V1 pinout, STEVAL-MKI083V1 application, or STEVAL-MKI083V1 equivalent, this adapter board supports direct integration with ST's Unico GUI and custom firmware for real-time gyro data acquisition, calibration, and system-level validation.

Technical Context

The STEVAL-MKI083V1 provides passive signal routing and power conditioning only - it contains no active ICs, microcontrollers, or level-shifting circuitry. Its schematic implements direct pin mapping between the LPY450AL's 24-pin DIL footprint and the STEVAL-MKI109V2's sensor interface header, including dedicated VDD filtering (8.2 µF + 100 nF) and GND plane integrity.

All signals - including X/Y-axis analog outputs (OUT_X, OUT_Y), reference voltage (VREF), supply (VDD), ground (GND), and control lines (CS, SCL, SDA, INT) - are routed without modification or buffering. No onboard voltage regulation, clock generation, or digital processing is present.

Key Specifications

Availability

STEVAL-MKI083V1 is available at Aetrix Electronics and suitable for MEMS sensor evaluation, industrial motion prototyping, and educational lab setups requiring stable component supply and legacy ST evaluation ecosystem support.

Supply support for STEVAL-MKI083V1 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, designing and manufacturing microcontrollers, sensors, power ICs, and analog/mixed-signal devices for industrial, automotive, and consumer applications.

This board belongs to ST's STEVAL (ST Evaluation) product line - purpose-built to accelerate development of MEMS-based motion sensing solutions by providing standardized, low-risk hardware interfaces for sensor characterization and system integration.

FAQ

Does STEVAL-MKI083V1 include the LPY450AL sensor?

No. The board is a passive adapter only - the LPY450AL must be separately sourced and inserted into the DIL-24 socket. The board provides no onboard sensor; it routes all pins directly with no active components or signal conditioning.

Can STEVAL-MKI083V1 operate standalone without STEVAL-MKI109V2?

No. It lacks power regulation, microcontroller, USB interface, or firmware. It requires connection to STEVAL-MKI109V2 (or equivalent host with compatible 24-pin header and LPY450AL driver support) to provide power, communication, and data acquisition capability.

What is the function of the 8.2 µF and 100 nF capacitors on VDD?

They form a two-stage decoupling network: the 8.2 µF tantalum suppresses low-frequency supply ripple, while the 100 nF ceramic filters high-frequency noise from the LPY450AL's internal oscillator and analog output amplifier - critical for stable angular rate measurement.

Is STEVAL-MKI083V1 still in production?

No. STMicroelectronics has marked STEVAL-MKI083V1 as obsolete (per DocID17671 Rev 2, July 2013). Aetrix Electronics maintains limited legacy stock for continuity support but does not offer new production builds or replacements.