STMicroelectronics SPC574KADPT144S

Overview

SPC574KADPT144S from STMicroelectronics is a daughter card evaluation board designed for the SPC574Kx 32-bit automotive microcontroller in eTQFP144 package. It provides full signal access to CPU I/O, supports dual CAN-FD (DB9), FlexRay (dual channel), LINFlexD, RS232/SCI, Nexus 2 debug, and JTAG interfaces, and integrates four on-board regulators (5.0 V, 3.3 V, 1.25 V switching; 5 V linear for ADC).

For engineers reviewing the SPC574KADPT144S datasheet, SPC574KADPT144S pinout, SPC574KADPT144S application, or SPC574KADPT144S equivalent, this board enables rapid validation of SPC574Kx MCU firmware, timing-critical automotive communication stacks (CAN-FD/FlexRay), analog sensor interface design, and power domain sequencing under real-world supply conditions.

Technical Context

The SPC574KADPT144S is a modular daughter card that mates with the SPC58XXMB/SPC57XXMB motherboard to form a complete evaluation system. It routes all 144 eTQFP signals to 0.1" pitch headers and two 240-way high-density expansion connectors, enabling hardware-in-the-loop testing and peripheral bring-up without soldering.

It implements dedicated power conditioning for automotive-grade operation: switching regulators deliver 5.0 V/3.3 V/1.25 V for core logic and I/O, while a low-noise 5 V linear regulator supplies ADC references and analog circuitry-ensuring <10 µV RMS noise on critical analog rails.

Key Specifications

Availability

SPC574KADPT144S is available at Aetrix Electronics and suitable for automotive ECU development, functional safety validation (ASIL-B/D), CAN-FD protocol stack testing, and FlexRay network timing analysis requiring stable component supply and traceable sourcing.

Supply support for SPC574KADPT144S 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 design capabilities.

This daughter card belongs to ST's SPC5 automotive MCU evaluation ecosystem, engineered specifically to accelerate development of safety-critical engine control, transmission, and chassis applications compliant with ISO 26262.

FAQ

Is the SPC574Kx microcontroller included with the SPC574KADPT144S daughter card?

No. The SPC574KADPT144S is a carrier board only-the SPC574Kx MCU in eTQFP144 package must be purchased separately. The board features an open-top socket compatible with standard eTQFP144 devices and provides full signal routing, power regulation, and interface connectivity for standalone or motherboard-integrated use.

Which motherboard is required to operate the SPC574KADPT144S in full-featured mode?

The SPC574KADPT144S requires either the SPC58XXMB or SPC57XXMB motherboard to enable full peripheral access-including CAN-FD transceivers, FlexRay PHYs, LIN drivers, and Nexus 2 trace. Without the motherboard, the daughter card supports only basic MCU boot, JTAG programming, and analog/digital I/O via headers.

What is the purpose of the 5 V linear regulator on this board?

The 5 V linear regulator exclusively powers the ADC reference voltage and analog input circuitry (e.g., potentiometer, external sensor inputs). Its low-noise output (<10 µV RMS) prevents quantization errors and ensures ±0.5 LSB accuracy in 12-bit ADC conversions during automotive sensor calibration and diagnostics.

Can the SPC574KADPT144S be used for ASIL-B or ASIL-D development?

Yes. The board's regulated power domains, signal integrity layout, Nexus 2 trace capability, and compatibility with ST's certified SPC574Kx MCUs (qualified per AEC-Q100 Grade 1 and ISO 26262 tool qualification reports) make it suitable for ASIL-B and ASIL-D software integration, fault injection testing, and safety mechanism validation in production-grade automotive ECUs.