STMicroelectronics STEVAL-MKI064V1

Overview

STEVAL-MKI064V1 from STMicroelectronics is a DIL-24 socket adapter board designed to evaluate the LSM303DLH 3-axis accelerometer and 3-axis magnetometer system-in-package. It provides full pin access, on-board VDD decoupling capacitors, RoHS compliance, and mechanical compatibility with ST's standard adapter board ecosystem for rapid sensor substitution during prototyping.

For engineers reviewing the STEVAL-MKI064V1 datasheet, STEVAL-MKI064V1 pinout, STEVAL-MKI064V1 application, or STEVAL-MKI064V1 equivalent, this board enables direct integration into custom host systems via standard DIL-24 footprint, supports fast iterative sensor evaluation without PCB redesign, and maintains signal integrity for I²C-based magnetic/acceleration data acquisition.

Technical Context

The board implements a passive breakout interface with no active circuitry-no level shifting, voltage regulation, or signal conditioning. All 24 pins of the LSM303DLH are routed 1:1 to the DIL-24 socket footprint, preserving native I²C communication timing and power domain separation (VDD for digital core, VDD_IO for I/O, VDDA for analog).

It includes ceramic decoupling capacitors (100 nF) on the VDD supply line only; no pull-up resistors, clock sources, or firmware are integrated. Compatibility across ST's MKI-series adapter boards ensures consistent mechanical mounting and electrical interface behavior when swapping sensors such as LSM303DLM or LSM303DLHC.

Key Specifications

Availability

STEVAL-MKI064V1 is available at Aetrix Electronics and suitable for sensor evaluation, embedded motion prototype development, and educational lab setups requiring stable component supply and legacy ST evaluation hardware interoperability.

Supply support for STEVAL-MKI064V1 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 board belongs to ST's STEVAL (ST Evaluation) platform family, engineered specifically to accelerate sensor evaluation and reduce time-to-test for motion-sensing subsystems using their MEMS-based ICs.

FAQ

Does STEVAL-MKI064V1 include pull-up resistors for I²C lines?

No. The board provides bare pin access only-SDA and SCL are uncommitted signals requiring external 4.7 kΩ pull-ups on the host system side. This preserves signal integrity and allows users to select resistor values matching their bus capacitance and speed requirements (standard/fast-mode I²C).

Can STEVAL-MKI064V1 be used with LSM303D or LSM303AGR sensors?

No. Pinout and voltage domain assignments differ across these families. Only LSM303DLH is electrically and mechanically supported-verified by schematic Figure 1 in Doc ID 17844 Rev 1, which shows reserved pins and VDDA/VDD_IO separation unique to that device.

Is firmware or software provided with STEVAL-MKI064V1?

No. This is a hardware-only adapter board. ST provides separate software examples (e.g., X-CUBE-MEMS1) for LSM303DLH, but those require connection to an STM32 Nucleo or Discovery board-not included with STEVAL-MKI064V1.

What is the maximum operating voltage for VDD on this board?

The board routes VDD directly to the LSM303DLH pin with no regulation or limiting. Per LSM303DLH datasheet, VDD must be 2.16–3.6 V DC. Exceeding 3.6 V risks permanent damage to the sensor IC mounted on the adapter.