STMicroelectronics STEVAL-PCC003V1

Overview

STEVAL-PCC003V1 from STMicroelectronics is a low-speed USB demonstration board built around the STUSB03 USB transceiver and ST72F63BE2 8-bit microcontroller, supporting USB HID class operation via mini-B connector, with jumper-configurable signal routing and test point access for debug and validation in embedded USB peripheral development.

For engineers reviewing the STEVAL-PCC003V1 datasheet, STEVAL-PCC003V1 pinout, STEVAL-PCC003V1 application, or STEVAL-PCC003V1 equivalent, this board enables rapid evaluation of ST's USB transceiver interface timing, HID descriptor implementation, pull-up resistor configuration, and microcontroller–transceiver signal mapping in resource-constrained portable devices.

Technical Context

The board implements a complete USB 1.1 low-speed (1.5 Mbps) physical layer using the STUSB03 single-chip transceiver, which integrates ESD protection, differential drivers/receivers, and internal 1.5 kΩ pull-up resistor control logic. The ST72F63BE2 provides firmware-controlled enumeration, HID report handling, and GPIO-based demultiplexer selection for signal routing.

USB communication lines (D+, D−) are routed between the STUSB03 and microcontroller through discrete series resistors (22 Ω) and termination capacitors (470 pF), while power is sourced either from the USB mini-B port (5 V) or an external supply, with on-board decoupling (100 nF + 10 μF).

Key Specifications

Availability

STEVAL-PCC003V1 is available at Aetrix Electronics and suitable for USB peripheral prototyping, HID device validation, and ST7/STUSB03 ecosystem training requiring stable component supply and legacy design continuity support.

Supply support for STEVAL-PCC003V1 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, analog ICs, power devices, and sensors for industrial, automotive, and consumer applications.

This board belongs to ST's STEVAL (ST Evaluation) series-purpose-built reference platforms to accelerate adoption of ST's USB interface solutions, particularly for cost-sensitive, low-pin-count embedded peripherals.

FAQ

Is STEVAL-PCC003V1 still in production?

No. STEVAL-PCC003V1 is marked obsolete by STMicroelectronics as of its 2008 release. It remains available through authorized legacy distributors and Aetrix Electronics' continuity program for existing designs requiring replacement or validation support.

What firmware is preloaded on the ST72F63BE2?

The board ships with factory-programmed HID-compliant firmware implementing a basic keyboard or mouse descriptor set. Source code and Keil C project files were originally provided in ST's AN2591 application note, supporting custom report descriptor modification.

Can STEVAL-PCC003V1 operate at full-speed USB (12 Mbps)?

No. Though the STUSB03 transceiver supports full-speed mode, the STEVAL-PCC003V1 hardware omits required 12 MHz crystal circuitry and uses passive RC timing; it is strictly configured and validated for low-speed (1.5 Mbps) operation only.

How do I configure the USB pull-up resistor?

Pull-up activation is controlled by JP1: open = pull-up disabled; closed = STUSB03 internal 1.5 kΩ resistor enabled on D− line. This matches low-speed USB specification requirements and eliminates need for external resistor placement.