STMicroelectronics SPC58EC80C3QMC0Y

Overview

SPC58EC80C3QMC0Y from STMicroelectronics is a dual-core 32-bit Power Architecture automotive MCU featuring two e200z420n3 CPUs clocked at 180 MHz, 4 MB on-chip flash (4096 KB code + 128 KB data), Hardware Security Module (HSM), and ASIL-B functional safety compliance per ISO 26262. It integrates 384 KB general-purpose SRAM, 64-channel eDMA, 8 MCAN interfaces with ISO CAN-FD support, and an IEEE 802.3-2008-compliant 10/100 Mbps Ethernet controller - deployed in engine control units and ADAS domain controllers.

For engineers reviewing the SPC58EC80C3QMC0Y datasheet, SPC58EC80C3QMC0Y pinout, SPC58EC80C3QMC0Y application, or SPC58EC80C3QMC0Y equivalent, key selection criteria include dual-core lock-step capability for safety-critical execution, HSM-secured boot and cryptographic acceleration, crossbar-switch ECC memory access, and multi-protocol connectivity (CAN-FD, FlexRay, LIN, Ethernet) required for next-generation automotive E/E architectures.

Technical Context

The SPC58EC80C3QMC0Y implements a dual-issue e200z420n3 core pair with Variable Length Encoding (VLE), 8 KB I-Cache and 4 KB D-Cache per core, and 64 KB local data RAM per CPU. Its safety architecture includes Fault Collection and Control Unit (FCCU), Memory Error Management Unit (MEMU), and dual CRC engines supporting end-to-end ECC across crossbar-switched memory and peripheral paths.

It features a dual PLL system: PLL0 provides stable clock domains for peripherals and debug interfaces, while PLL1 delivers FM-modulated clocks to computational shells. The device supports concurrent access via a crossbar switch with six bus masters, enabling deterministic real-time arbitration between CPU cores, eDMA, Ethernet MAC, and FlexRay controllers without bus contention.

Key Specifications

Pinout & Package

SPC58EC80C3QMC0Y is packaged in FPBGA292 (17 mm × 17 mm × 1.8 mm, 0.8 mm pitch), optimized for high I/O count and thermal performance in automotive under-hood applications. Pin assignments follow ST's SPC58ECx IO Definition document, with dedicated power domains (VDD_LV, VDD_HV_IO_MAIN, VDD_HV_FLA), differential clock inputs (XOSC_40M, XOSC_32K), and functional groups including MCAN_TX/RX, LINFlexD, DSPI_MOSI/MISO/SCK, Ethernet RMII signals, and HSM debug interface pins.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-core automotive MCU applications.

Compared with NXP S32K344 and Renesas RH850/U2A, the SPC58EC80C3QMC0Y uniquely combines Power Architecture deterministic timing, integrated 10/100 Ethernet with AVB/TSN readiness, and HSM-enforced secure boot - making it optimal for ASIL-B domain controllers requiring protocol convergence and over-the-air update integrity without external security co-processors.

Availability

SPC58EC80C3QMC0Y is available at Aetrix Electronics and suitable for engine control units, ADAS domain controllers, electric vehicle battery management systems, and vehicle gateway modules requiring stable component supply across automotive production lifecycles.

Supply support for SPC58EC80C3QMC0Y 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, designing and manufacturing microcontrollers, power ICs, sensors, and automotive-grade SoCs for industrial, automotive, and consumer markets.

The SPC58 C Line targets next-generation automotive E/E architectures, delivering high-performance, safety-certified, and secure computing platforms for domain controllers, zonal gateways, and electrification systems with integrated multi-protocol connectivity and hardware-enforced security.

FAQ

What is the maximum junction temperature rating for SPC58EC80C3QMC0Y?

The SPC58EC80C3QMC0Y is rated for a junction temperature range of –40 °C to +150 °C, validated per AEC-Q100 Grade 0 requirements. This specification ensures reliable operation in under-hood environments such as engine compartments and power inverters where ambient temperatures exceed 125 °C and thermal cycling is severe.

Does SPC58EC80C3QMC0Y support IEEE 1588 Precision Time Protocol (PTP)?

Yes, the integrated Ethernet MAC supports IEEE 1588-2008 timestamping with a 64-bit internal time counter and hardware-assisted timestamp insertion/extraction on transmit and receive paths. This enables sub-microsecond synchronization accuracy across distributed ADAS sensors without requiring external PTP grandmaster clocks.

How is the Hardware Security Module (HSM) isolated from the main CPU subsystem?

The HSM is implemented as a physically separate subsystem with dedicated 176 KB flash, 32 KB data RAM, and cryptographic accelerators (AES, SHA, RSA). It operates independently via its own bus interface and interrupt controller, enforcing strict memory protection through the System MPU - preventing main CPU access to HSM code or keys unless explicitly authorized via secure mailbox protocols.

Can SPC58EC80C3QMC0Y execute AUTOSAR OS on both cores simultaneously?

Yes, the dual e200z420n3 cores support symmetric multiprocessing (SMP) and asymmetric multiprocessing (AMP) configurations. AUTOSAR OS 4.3+ is certified for this device, enabling partitioned execution where Core_0 handles safety-critical tasks (e.g., torque calculation) and Core_2 manages non-safety middleware (e.g., diagnostics, communication stacks) with inter-core messaging via shared memory and semaphores.