STMicroelectronics ST72F34X-SK/RAIS

Overview

ST72F34X-SK/RAIS from Raisonance is a complete, low-cost starter kit for STMicroelectronics ST72F345C4 8-bit microcontroller in LQFP48 package, featuring embedded RLink USB debugger/programmer (SWIM interface), REva motherboard with I²C EEPROM, RS-232, analog sensor inputs, and configurable VDD (1.8 V / 3.3 V / 5 V). It supports rapid application development for industrial control and sensor interface systems.

For engineers reviewing the ST72F34X-SK/RAIS datasheet, ST72F34X-SK/RAIS pinout, ST72F34X-SK/RAIS application, or ST72F34X-SK/RAIS equivalent, this kit delivers verified in-circuit debugging, SWIM-based programming, multi-voltage MCU evaluation, and Ride7 IDE integration - all critical for ST72F345 firmware prototyping and peripheral validation.

Technical Context

The ST72F34X-SK/RAIS integrates the REva motherboard with an interchangeable daughterboard hosting the ST72F345C4 MCU - a 16 MHz ST7 core device with 32 KB Flash, 1 KB RAM, 10-bit ADC, SPI, UART, and I²C. The RLink subsystem provides full SWIM protocol support over USB, enabling real-time debugging without external power.

Hardware features include on-board temperature sensor, potentiometer, pushbuttons, LEDs, SO-DIMM expansion connector, and dual DB9 RS-232 interfaces - all directly accessible via the REva's digital/analog I/O headers and routed to the ST72F345's native peripheral pins per the daughterboard layout.

Key Specifications

Availability

ST72F34X-SK/RAIS is available at Aetrix Electronics and suitable for industrial HMI development, sensor node prototyping, educational MCU labs, and legacy ST7-based product maintenance requiring stable component supply and long-term toolchain continuity.

Supply support for ST72F34X-SK/RAIS 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

Raisonance is a French embedded tools developer specializing in MCU evaluation platforms, debuggers, and integrated development environments for STMicroelectronics, Silicon Labs, and other semiconductor vendors.

This kit belongs to Raisonance's REva platform family - designed specifically to accelerate evaluation and firmware development for ST's 8-bit ST7 and STM8 microcontroller families using standardized hardware abstraction and unified software tooling.

FAQ

Does ST72F34X-SK/RAIS support in-circuit debugging for the ST72F345C4?

Yes. The embedded RLink module implements the SWIM protocol over USB to provide full real-time in-circuit debugging and flash programming for the ST72F345C4. No external debugger or power supply is required - USB host connection powers both RLink and REva motherboard.

What software tools are included with the ST72F34X-SK/RAIS kit?

The kit includes Ride7 IDE with integrated editor, project manager, ST7/STM8 C compiler (2 KB free code limit), SIMICE instruction-set simulator, RBuilder peripheral configuration GUI, and optional CodeCompressor for post-link code size optimization (5–15% reduction).

Can the ST72F34X-SK/RAIS be used with other ST7 or STM8 MCUs?

Yes. The REva platform uses interchangeable daughterboards. Users may replace the ST72F345C4 daughterboard with other REva-compatible boards (e.g., ST72F321BAR9, STM8S105C6) to evaluate different MCUs while retaining the same motherboard, peripherals, and software environment.

Is external power required for ST72F34X-SK/RAIS operation?

No. The kit is fully USB-powered via the RLink interface. The REva motherboard draws power from the host PC's USB port and distributes regulated 1.8 V, 3.3 V, or 5 V to the ST72F345C4 daughterboard through jumper-selectable VDD rails - no external adapter or bench supply needed.