STMicroelectronics SPC574SADPT244S

Overview

SPC574SADPT244S from STMicroelectronics is a daughter card for evaluating the SPC574Sx 32-bit automotive microcontroller in BGA244 package, featuring dual CAN-FD, FlexRay, LIN, RS232/SCI, Nexus 3+ debug via Mictor, and four on-board voltage regulators (5.0 V, 3.3 V, 1.25 V switching + 5 V linear for ADC).

For engineers reviewing the SPC574SADPT244S datasheet, SPC574SADPT244S pinout, SPC574SADPT244S application, or SPC574SADPT244S equivalent, this board enables full CPU signal access, real-time trace via Nexus Level 3+, and rapid validation of automotive communication stacks including CAN-FD and FlexRay in ECU development environments.

Technical Context

The SPC574SADPT244S is a modular evaluation daughter card designed to plug into the SPC58XXMB/SPC57XXMB motherboard, providing physical interface breakout and power conditioning for the SPC574Sx MCU - not included - which must be socketed separately. It supports both standalone use and full-system integration.

It implements three independent clocking paths: 40 MHz crystal-based, 8 MHz oscillator-based, and external SMA input; includes dedicated 5 V linear regulation for analog reference stability; and routes all MCU I/O signals to 0.1" headers and high-density expansion connectors for custom peripheral attachment.

Key Specifications

Availability

SPC574SADPT244S is available at Aetrix Electronics and suitable for automotive ECU prototyping, functional safety validation (ASIL-B/D support), and CAN-FD/FlexRay gateway development requiring stable component supply and long-term design continuity.

Supply support for SPC574SADPT244S 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 power management ICs with strong ASIL-certified MCU portfolios.

This daughter card belongs to ST's SPC57xx premium evaluation system, engineered specifically to accelerate development and compliance testing of automotive control units based on Power Architecture® cores.

FAQ

Does the SPC574SADPT244S include the SPC574Sx microcontroller?

No. The SPC574Sx MCU is not included and must be purchased separately as a socketed component. The board provides an open-top eTQFP/BGA socket and supporting circuitry - users select the specific SPC574Sx variant (e.g., SPC574S54E5, SPC574S64E5) based on flash size, peripheral set, and qualification level required for their target application.

What debug capabilities does the SPC574SADPT244S support?

The board supports JTAG (14-pin), Nexus 2 (34-pin), and Nexus Level 3+ (38-pin Mictor) interfaces. Nexus 3+ enables real-time instruction trace, data trace, and complex breakpoint triggering - essential for AUTOSAR stack analysis and ISO 26262 tool qualification workflows in automotive software development.

Can the SPC574SADPT244S operate without the motherboard?

Yes. The daughter card can function as a standalone unit when only basic MCU operation, power sequencing, and minimal I/O access are needed. However, full peripheral access (CAN-FD transceivers, FlexRay PHY, LIN drivers, RS232 level-shifting) requires connection to the SPC58XXMB/SPC57XXMB motherboard, which hosts those physical layer components.

How is clocking configured on the SPC574SADPT244S?

Clocking is configurable via three independent sources: a 40 MHz crystal oscillator circuit, an 8 MHz onboard clock oscillator, or an external clock injected through the SMA connector. All options feed the MCU's clock input pins directly, enabling precise timing validation for PLL lock behavior, startup sequence timing, and jitter-sensitive applications like motor control or sensor fusion.