STMicroelectronics STEVAL-PCC009V3

Overview

STEVAL-PCC009V3 from STMicroelectronics is a demonstration motherboard based on the STM32 microcontroller, serving as a generic interface for S-Touch® capacitive touch daughterboards (e.g., STEVAL-ICB002V1 with STMPE821). It provides USB-powered operation, DFU-based reprogramming capability, and a 10-pin synchronous serial interface for daughterboard communication.

For engineers reviewing the STEVAL-PCC009V3 datasheet, STEVAL-PCC009V3 pinout, STEVAL-PCC009V3 application, or STEVAL-PCC009V3 equivalent, this board supports rapid evaluation of STM32-driven capacitive touch systems, USB-to-peripheral bridging, and firmware updates via Device Firmware Upgrade mode - critical for embedded human-interface development.

Technical Context

The board implements an STM32F103-based host controller that manages bidirectional communication with S-Touch® daughterboards via SPI and I²C protocols routed through its 10-pin interface (PB0–PB15, including PB10_I2C2_SCL_DB, PB11_I2C2_SDA_DB, PB12–PB15_SPI2_NSS/SCK/MISO/MOSI). It integrates ESD protection (ESDALC6V1M6), level-shifting buffers (ST2349), and configurable pull-ups (EXB-38V472JV arrays).

Power architecture includes USB mini-B input (5 V), LD1117D33TR LDO for regulated 3.3 V, and dedicated V_CON rails to supply daughterboards. JTAG (20-pin) and MicroSD (30-pin) expansion headers support debugging and storage integration, while analog interface (10-pin) enables ADC signal routing (PC0–PC3_ADC12_IN10–IN13, PE5–PE6).

Key Specifications

Availability

STEVAL-PCC009V3 is available at Aetrix Electronics and suitable for capacitive touch evaluation, STM32 firmware development, and S-Touch® ecosystem integration requiring stable component supply and legacy design support.

Supply support for STEVAL-PCC009V3 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, analog ICs, MEMS, and power solutions for industrial, automotive, and consumer applications.

This board belongs to ST's STEVAL evaluation platform family, designed to accelerate development of human-machine interface (HMI) systems using ST's S-Touch® capacitive sensing architecture and STM32 microcontrollers.

FAQ

Is STEVAL-PCC009V3 still in active production?

No - STMicroelectronics has marked STEVAL-PCC009V3 as obsolete (per Doc ID 022231 Rev 1, September 2011). However, Aetrix Electronics maintains limited legacy stock for continuity support in maintenance and replacement scenarios where redesign is not feasible.

Can STEVAL-PCC009V3 be used with modern STM32 Nucleo or Discovery boards?

Not directly - it lacks native compatibility with ST's current Nucleo pinout or mbed/DAPLink firmware stack. Its 10-pin S-Touch® interface is mechanically and electrically specific to legacy daughterboards like STEVAL-ICB002V1 and requires custom adapter wiring for integration with newer platforms.

What firmware tools are required to reprogram the onboard STM32?

ST's DfuSe utility (v3.0.6 or earlier) is required for DFU-mode flashing via USB. The board must be placed into DFU mode using the BOOT0 jumper before enumeration. No ST-Link or JTAG debugger is needed for basic firmware updates.

Does the board support MicroSD card initialization and file access?

Yes - it includes a full MicroSD interface (J8) with SPI-based SDIO signaling (PA5–PA7, PA6_SPI1_MISO, PA7_SPI1_MOSI, PA5_SPI1_SCK), pull-up resistors (R20/R23/R24), and voltage regulation (3.3 V rail), enabling FAT filesystem use with appropriate STM32 HAL drivers.