STMicroelectronics SPC584B-DISP

Overview

SPC584B-DISP from STMicroelectronics is a discovery-plus development board for the SPC584B70E5 32-bit Power Architecture® microcontroller in eTQFP144 package. It integrates an on-board USB-based debugger (FT2232H), dual CAN-FD transceivers (MCP2562FD), LIN transceiver (TJA1020), RS-232 interface (ST3232EBTR), Ethernet PHY (DP83848CVV), and Arduino UNO R3-compatible expansion headers - enabling rapid prototyping of automotive-grade embedded control applications.

For engineers reviewing the SPC584B-DISP datasheet, SPC584B-DISP pinout, SPC584B-DISP application, or SPC584B-DISP equivalent, this board supports full JTAG/SWD debugging, dual-channel CAN-FD communication up to 5 Mbps, LIN 2.2A master/slave operation, 10/100 Mbps Ethernet with MII/RII support, and configurable 3.3 V/5 V I/O voltage domains via jumpers JP34–JP37.

Technical Context

The board implements a dual-regulator power architecture: A5973AD buck converters generate stable 5 V (3.3 A) and 3.3 V (2.5 A) rails from 12 V input, while an LD1117A3V3 linear regulator supplies clean 3.3 V for ADC sections. All MCU supply domains - VDD_HV_IO_Main, VDD_HV_IO_Flex, VDD_HV_ADC, and VDD_CPU - are independently configurable via solder jumpers JP34–JP37 and header JP33.

Debugging is handled by an integrated FT2232H dual-channel USB bridge: one channel provides JTAG/SWD signals (TCK/TMS/TDI/TDO/SRST/TRST) with level-shifting SN74LVC1T45 buffers; the other enables USB Virtual COM port (CDC ACM) over UART. The debugger firmware is compatible with ST's free SPC5Studio IDE and third-party tools supporting PLS UDE.

Key Specifications

Availability

SPC584B-DISP is available at Aetrix Electronics and suitable for automotive ECU development, industrial motor control prototyping, and vehicle network gateway evaluation requiring stable component supply, traceable sourcing, and long-term lifecycle support.

Supply support for SPC584B-DISP 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, specializing in automotive, industrial, and embedded microcontrollers, analog ICs, and power solutions.

The SPC58x series targets automotive powertrain, chassis, and body electronics - designed for ASIL-B compliance, high-temperature operation (−40 °C to 125 °C), and real-time deterministic control with hardware safety mechanisms.

FAQ

Does the SPC584B-DISP support CAN FD data rates above 1 Mbps?

Yes. Each CAN-FD channel uses an MCP2562FD transceiver rated for up to 5 Mbps in the data phase. The SPC584B70E5 MCU's FlexCAN modules support programmable bit timing, enabling configuration for nominal rates up to 1 Mbps and data phases up to 5 Mbps - verified in UM2462 Section 4.6 and confirmed by ST's SPC5Studio CAN-FD example projects.

Can the board operate with external 3.3 V power only, bypassing the 12 V input?

No. The on-board A5973AD buck converters require 12 VDC input (via X5 DC jack) to generate internal 5 V and 3.3 V rails. There is no direct 3.3 V or 5 V auxiliary power entry point; all regulated voltages derive exclusively from the 12 V source as shown in Figures 2–4 and Section 4.1 of UM2462.

Is the integrated debugger compatible with IDEs other than SPC5Studio?

Yes. The FT2232H-based debugger supports standard JTAG and SWD protocols and is recognized by OpenOCD, Lauterbach TRACE32, and PLS UDE. ST provides CMSIS-DAP firmware updates and SPC5-specific debug scripts, but raw JTAG access allows integration with any compliant toolchain - per UM2462 Section 4.3 and ST Application Note AN4912.

What is the purpose of the 40 MHz crystal oscillator on the board?

The 40 MHz crystal (X1) feeds the SPC584B70E5's external oscillator input (EXTAL/XTAL pins 81–82) to provide the primary clock source for the MCU's PLL. This enables generation of the 200 MHz core clock and synchronized peripheral clocks - critical for time-sensitive automotive functions like eMIOS timer capture and FlexCAN bit timing accuracy.