STMicroelectronics SPC574SADPT144S

Overview

SPC574SADPT144S from STMicroelectronics is a daughter card designed for evaluating the SPC574Sx 32-bit automotive microcontroller in eTQFP144 package, featuring dual CAN-FD channels, FlexRay, LINFlexD, Nexus 3+ debug via Mictor, and on-board 5.0 V / 3.3 V / 1.25 V switching regulators with 5 V linear regulator for ADC references.

For engineers reviewing the SPC574SADPT144S datasheet, SPC574SADPT144S pinout, SPC574SADPT144S application, or SPC574SADPT144S equivalent, this board enables full CPU signal access, real-time trace via Nexus Level 3+, and automotive-grade interface validation including CAN-FD timing compliance, FlexRay physical layer testing, and LIN baud rate calibration under 12 V single-supply operation.

Technical Context

The SPC574SADPT144S interfaces exclusively with ST's SPC58XXMB/SPC57XXMB motherboard to form a modular evaluation system; it hosts no MCU-users must separately procure the SPC574Sx eTQFP144 device and mount it into the open-top socket.

It provides three clocking paths (40 MHz crystal, 8 MHz oscillator, external SMA input), dedicated power regulation per domain (including low-noise 5 V linear rail for analog subsystems), and standardized high-density expansion connectors enabling daughter-card reuse across SPC57/SPC58 families.

Key Specifications

Availability

SPC574SADPT144S is available at Aetrix Electronics and suitable for automotive ECU development, functional safety validation (ASIL-B/D support path), and CAN-FD/FlexRay protocol stack integration requiring stable component supply and long-term board-level availability.

Supply support for SPC574SADPT144S 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, power management ICs, sensors, and automotive-grade silicon for safety-critical systems.

This daughter card belongs to ST's SPC5 Premium Evaluation Boards family, engineered specifically to accelerate qualification of SPC57/SPC58 automotive MCUs under ISO 26262 workflows and enable hardware-in-the-loop (HIL) testing of time-triggered communication stacks.

FAQ

Is the SPC574Sx microcontroller included with the SPC574SADPT144S daughter card?

No. The SPC574SADPT144S is a bare daughter card with an open-top eTQFP144 socket - the SPC574Sx MCU must be purchased separately and manually inserted. ST explicitly states "The MCU is not included" in DB2625 Rev 2, and no onboard MCU is populated or soldered.

What motherboard is required to operate this daughter card?

The SPC574SADPT144S requires either the SPC58XXMB or SPC57XXMB motherboard - both are compatible and provide power distribution, host interface bridging (USB-to-JTAG/Nexus), and peripheral routing. These motherboards are sold separately and are not interchangeable with non-ST evaluation platforms.

Does this board support real-time instruction trace for SPC574Sx?

Yes. The 38-pin Mictor connector implements Nexus Level 3+ trace capability, enabling real-time streaming of program flow, data memory accesses, and timestamped event capture directly from the SPC574Sx core when used with compatible trace analyzers (e.g., Lauterbach TRACE32).

Can the SPC574SADPT144S be used without the motherboard?

Yes - as a standalone unit for basic MCU bring-up and I/O signal probing. All MCU pins are accessible via 0.1" pitch headers, and on-board regulators supply required voltages. However, full debug (JTAG/Nexus), communication interface operation (CAN-FD, FlexRay), and trace require connection to the motherboard.