STMicroelectronics STEVAL-IME008V1

Overview

STEVAL-IME008V1 from STMicroelectronics is an evaluation board built around the STHV749 4-channel, 7-level high-voltage ultrasound pulser IC, designed for medical and industrial ultrasound imaging system development. It provides BNC-connected HV/LV outputs, 16 preset waveforms, FPGA-based waveform generation (Xilinx XC6SLX16), 4 MB serial Flash for firmware storage, USB interface for PC communication and power, and on-board load simulation capability.

For engineers reviewing the STEVAL-IME008V1 datasheet, STEVAL-IME008V1 pinout, STEVAL-IME008V1 application, or STEVAL-IME008V1 equivalent, this board serves as a complete reference platform to validate STHV749 timing, voltage swing, pulse fidelity, and multi-channel synchronization in real-world transducer drive scenarios - especially where programmable waveform shape, amplitude control, and thermal monitoring are critical.

Technical Context

The board integrates the STHV749 pulser IC with a Xilinx Spartan-6 FPGA (XC6SLX16-2CSG324C) configured for digital waveform synthesis and timing control. The FPGA drives the STHV749 via parallel 16-bit DATAOUT[0:15], clock (CK), chip select (SEL), and control signals (CW, THSD_EN), enabling precise 7-level output voltage sequencing across four independent channels.

Power architecture includes dedicated high-voltage supply rails (±100 V), low-voltage logic (3.3 V, 1.2 V), and isolated DC/DC converters for FPGA core/I/O domains. On-board BNC connectors allow direct oscilloscope probing of each channel's HV output, while jumper-configurable idle states (High-Z, Clamp, HVR_SW) support safe transducer interfacing during initialization or fault conditions.

Key Specifications

Availability

STEVAL-IME008V1 is available at Aetrix Electronics and suitable for ultrasound imaging system prototyping, medical device R&D, non-destructive testing (NDT) equipment development, and academic research requiring validated high-voltage pulser evaluation platforms.

Supply support for STEVAL-IME008V1 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, analog ICs, power management, and sensor solutions for automotive, industrial, and medical applications.

The STEVAL-IME008V1 belongs to ST's ST EVAL series of application-specific evaluation kits, developed to accelerate design-in of high-performance analog front-ends - particularly for ultrasound, LiDAR, and precision pulse-generation systems demanding sub-nanosecond timing control and robust HV reliability.

FAQ

What is the primary function of the STHV749 IC on this board?

The STHV749 is a 4-channel, 7-level high-voltage pulser IC optimized for ultrasound transducer excitation. On the STEVAL-IME008V1, it generates precisely timed, programmable bipolar pulses up to ±100 V per channel, with integrated thermal shutdown, output state control (High-Z/Clamp), and differential signaling to drive piezoelectric elements in medical and industrial imaging systems.

Can the 16 preset waveforms be modified or extended?

Yes - the FPGA firmware and waveform data are stored in the onboard 4 MB serial Flash memory. Users can reprogram the Xilinx Spartan-6 FPGA via JTAG or SPI interface, update waveform definitions in Flash using the provided ST software tools, and add custom waveforms beyond the default 16 by modifying the FPGA logic and memory mapping as documented in UM1725 and AN4522.

Does the board support external transducer load simulation?

Yes - the STEVAL-IME008V1 includes a configurable load simulator using signal-equivalent circuits, and supports user-defined load configurations via jumpers and external component placement. Dedicated connectors (J1–J4) allow direct connection of real transducers or custom RC/RLC networks to emulate acoustic loading, enabling realistic pulse-echo response testing without requiring live transducer hardware.

Is USB the only way to communicate with the board?

No - while USB provides power and host PC communication via the onboard STM32 microcontroller, the board also features two PMOD-compatible 12-pin headers (J8/J9) exposing 16 FPGA I/O lines at 3.3 V, enabling direct integration with other FPGA/CPU platforms, custom controllers, or test instrumentation using SPI, UART, or GPIO protocols without relying on USB or PC software.