STMicroelectronics B-LCDAD-RPI1

Overview

B-LCDAD-RPI1 from STMicroelectronics is a DSI-to-LCD adapter board designed to bridge MIPI Display Serial Interface (DSI) outputs from STM32 Evaluation or Discovery boards to standard LCD modules using a TE 1-1734248 connector. It supports up to two-lane DSI data transmission and I²C control, enabling direct integration with displays requiring DSI input in embedded HMI development.

For engineers reviewing the B-LCDAD-RPI1 datasheet, B-LCDAD-RPI1 pinout, B-LCDAD-RPI1 application, or B-LCDAD-RPI1 equivalent, key considerations include its Samtec QTH-030 high-speed DSI interface compatibility, mechanical alignment with STM32 DK/EVAL board footprints, support for dual-lane DSI signaling, and use of industry-standard TE LCD connectors for rapid display prototyping.

Technical Context

The B-LCDAD-RPI1 operates as a passive signal-routing adapter-no active logic, level-shifting, or protocol translation is performed. It maps DSI differential pairs and I²C lines directly between the source (STM32 DSI controller) and destination (LCD panel), preserving timing integrity and electrical characteristics per MIPI D-PHY v1.2 specifications.

Its physical layout maintains controlled impedance for DSI lanes (100 Ω differential) and separates I²C traces from high-speed signals to minimize crosstalk. The board uses rigid PCB construction with gold-plated edge connectors and no onboard power regulation or display initialization firmware.

Key Specifications

Availability

B-LCDAD-RPI1 is available at Aetrix Electronics and suitable for embedded HMI development, STM32-based display prototyping, and industrial LCD interface validation requiring stable component supply and documented mechanical interoperability.

Supply support for B-LCDAD-RPI1 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, power management, and embedded solutions for automotive, industrial, and consumer applications.

The B-LCDAD-RPI1 belongs to ST's ecosystem expansion board family, developed to simplify hardware integration between STM32 microcontrollers and off-the-shelf LCD panels by providing mechanically and electrically validated interconnect solutions.

FAQ

Does the B-LCDAD-RPI1 include any active components or firmware?

No. The B-LCDAD-RPI1 is a passive adapter board containing only copper traces, plated connectors, and a rigid FR-4 substrate. It performs no signal conditioning, voltage translation, or display initialization-functionality relies entirely on the host STM32 MCU's DSI peripheral and display driver software stack.

Which STM32 evaluation boards are mechanically compatible with the B-LCDAD-RPI1?

The board is explicitly designed for STM32 EVAL and Discovery kits featuring the Samtec QTH-030 DSI header, including the STM32F769I-DISCO, STM32H747I-DISCO, and STM32L4R9I-DISCO. Mechanical fitment is confirmed by ST's reference design documentation and board outline drawings.

Can the B-LCDAD-RPI1 support single-lane DSI configurations?

Yes. The adapter routes all DSI differential pairs present on the QTH-030 connector, allowing use with both single-lane (clock + one data lane) and dual-lane DSI implementations. Unused lanes remain unconnected and do not affect signal integrity.

Is the TE 1-1734248 connector on the B-LCDAD-RPI1 compatible with common 30-pin FPC LCD modules?

Yes. The TE 1-1734248 is a standard 30-pin, 0.5 mm pitch ZIF-style FPC connector used across multiple industrial LCD modules. Its pinout aligns with MIPI DSI signal assignments defined in ST's hardware integration notes for STM32 display applications.