STMicroelectronics X-NUCLEO-DRP1M1

Overview

X-NUCLEO-DRP1M1 from STMicroelectronics is a USB Type-C™ Power Delivery dual-role power (DRP) and dual-role data (DRD) expansion board based on the TCPP03-M20 transceiver, designed for stacking on STM32 Nucleo-64 boards with UCPD peripherals. It supports 100 W SPR profiles, PPS compliance, USB-IF certification (ID 6408), and integrates ST715PU33R LDO for dead-battery operation.

For engineers reviewing the X-NUCLEO-DRP1M1 datasheet, X-NUCLEO-DRP1M1 pinout, X-NUCLEO-DRP1M1 application, or X-NUCLEO-DRP1M1 equivalent, this board enables rapid validation of DRP/DRD behavior, VBUS/CC line protection (8/20 µs surge, ±8 kV ESD), I²C-configurable power role switching, and sink/source/data handshaking in real USB-C PD ecosystems.

Technical Context

The board implements full USB Type-C™ 2.1 and Power Delivery 3.1 SPR functionality using the TCPP03-M20 companion chip, which handles CC logic, VBUS sensing (0–22 V range), current monitoring (Isense), and fault signaling via FLGn. It interfaces with host STM32 MCUs through I²C (SCL/SDA), GPIO (ENABLE, SOURCE, SINK, FLGN), and ADC channels (ADC_VBUSc, ADC_Isense, ADC_Prov, ADC_Cons).

Three configurable power modes (active, low-power, shutdown) optimize system current draw, while integrated protections include short-to-VBUS on CC pins, overvoltage/overcurrent on VBUS and VCONN, and common-mode filtering on D+/D− lines per USB 2.0 signal integrity requirements.

Key Specifications

Availability

X-NUCLEO-DRP1M1 is available at Aetrix Electronics and suitable for USB-C PD evaluation, embedded DRP firmware development, and industrial USB-C interface qualification requiring stable component supply and USB-IF certified reference behavior.

Supply support for X-NUCLEO-DRP1M1 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, designing and manufacturing microcontrollers, analog ICs, power devices, and sensors for industrial, automotive, and consumer applications.

The X-NUCLEO series targets rapid prototyping of STM32-based systems, with the DRP1M1 specifically engineered to demonstrate USB Type-C™ dual-role power and data capabilities using ST's UCPD peripheral and TCPP03-M20 transceiver ecosystem.

FAQ

What microcontrollers are supported by the X-NUCLEO-DRP1M1?

The board is designed for STM32 Nucleo-64 development boards embedding a UCPD peripheral, including NUCLEO-G071RB and NUCLEO-G474RE. The X-CUBE-TCPP firmware library provides portable examples that can be adapted to other UCPD-capable STM32 MCUs such as those in the G0B1 and L5 series, subject to pin mapping and clock configuration alignment.

Does the X-NUCLEO-DRP1M1 require external power to operate as a sink?

No - the integrated ST715PU33R LDO supplies 3.3 V to the host Nucleo board even when VBUS is absent, enabling true dead-battery sink operation. This allows the MCU to initialize, detect connection, and negotiate power roles before receiving VBUS, fulfilling USB-C specification requirements for sink readiness.

How is USB-C configuration channel (CC) signaling implemented?

The TCPP03-M20 transceiver handles all CC logic: detecting plug orientation, determining source/sink role, measuring VBUS voltage (via VSENSE), monitoring current (via ISENSE), and asserting FLGn on fault events. CC1 and CC2 pins are protected against short-to-VBUS and ESD, and biasing is managed internally via CBIAS and external resistors per USB-C spec.

Can the X-NUCLEO-DRP1M1 be used without STM32Cube firmware?

While the board is optimized for use with ST's X-CUBE-TCPP software package, its hardware interface (I²C, GPIOs, ADC inputs) is fully documented in DB4515. Engineers may develop custom firmware using register-level access to TCPP03-M20 and direct control of SOURCE/SINK/ENABLE signals, provided they implement USB PD protocol stack and state machine logic independently.