STMicroelectronics SPC56EC74L8C9E0X

Overview

SPC56EC74L8C9E0X from STMicroelectronics is a 32-bit automotive MCU based on the Power Architecture® e200z4d core, operating at up to 120 MHz (200 MIPs), with 3 MByte on-chip Flash (ECC), 256 KByte SRAM (ECC), and integrated FlexCAN, DSPI, LINFlex, Ethernet, and Cryptographic Services Engine (AES-128). It targets body electronics control units requiring functional safety, secure boot, and real-time I/O for lighting, gateway, and domain controller applications.

For engineers reviewing the SPC56EC74L8C9E0X datasheet, SPC56EC74L8C9E0X pinout, SPC56EC74L8C9E0X application, or SPC56EC74L8C9E0X equivalent, key selection criteria include dual-core timing capability (e200z4d + e200z0h), 6 FlexCAN interfaces with 64 buffers each, Fast Ethernet Controller (MII), and diagnostic features for PWM-synchronized ADC in lighting modules.

Technical Context

This MCU integrates two independent Power Architecture® cores: a high-performance e200z4d (120 MHz) for main application tasks and a dedicated e200z0h (80 MHz) for safety-critical or real-time background functions. Core coupling is managed via shared memory with MPU protection and hardware semaphore support.

The peripheral set is optimized for automotive body domain integration: 6 FlexCAN controllers support CAN FD-ready communication; Fast Ethernet (MII interface) enables backbone connectivity; and the CSE provides AES-128 encryption and secured device boot. Clocking includes FMPLL, 4–40 MHz crystal oscillator, and redundant RC sources (16 MHz/128 kHz) with Clock Monitoring Unit (CMU) for fail-safe operation.

Key Specifications

Pinout & Package

LQFP208 package (28 × 28 × 1.4 mm), 208-pin quad flat pack with exposed thermal pad; pin-compatible with SPC56ECxx family members in same package variant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive microcontroller applications.

Compared with SPC56EC74L8C9E0X, the LBGA256 alternative offers superior debug and thermal performance but requires requalification for PCB layout and assembly; the SPC56EC70L8 variant trades memory headroom for cost reduction while maintaining identical peripheral functionality and pin compatibility.

Availability

SPC56EC74L8C9E0X is available at Aetrix Electronics and suitable for automotive body control modules, LED lighting controllers, and zonal domain controllers requiring stable component supply, long-term lifecycle assurance, and AEC-Q100 Grade 1 qualification.

Supply support for SPC56EC74L8C9E0X 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 management ICs, sensors, and automotive-grade silicon for industrial, automotive, and consumer markets.

The SPC56ECxx product line delivers 32-bit Power Architecture® MCUs specifically engineered for automotive body electronics, emphasizing functional safety (ISO 26262), security (secure boot, CSE), and mixed-signal integration (PWM-ADC sync, Ethernet, FlexRay) in harsh environments.

FAQ

What is the maximum operating frequency of the e200z4d core in SPC56EC74L8C9E0X?

The e200z4d core operates at up to 120 MHz, delivering 200 MIPs performance. This frequency is achieved using the FMPLL with a 4–40 MHz external crystal or 16 MHz internal RC oscillator as reference. The core's timing is validated across the full -40 °C to +125 °C temperature range and 3.3 V ±10% or 5.0 V ±10% supply conditions per datasheet Section 3.4.

Does SPC56EC74L8C9E0X support IEEE 1588 Precision Time Protocol (PTP)?

No, the Fast Ethernet Controller in SPC56EC74L8C9E0X implements a standard MII interface compliant with IEEE 802.3u but does not include hardware timestamping or PTP acceleration logic. Time synchronization must be implemented in software using the system timer units (STM/PIT) and external grandmaster clock via UDP/IP stack.

How many CAN interfaces are implemented, and do they support CAN FD?

SPC56EC74L8C9E0X integrates six FlexCAN modules, each with 64 message buffers and full CAN 2.0B compliance. While the FlexCAN IP supports CAN FD frame format in later derivatives, this specific part (per DocID17478 Rev 9, Table 2) implements only classical CAN (up to 1 Mbps) - no CAN FD arbitration or data phase acceleration is enabled or characterized.

Is the Cryptographic Services Engine (CSE) certified to FIPS 140-2 or Common Criteria?

The CSE implements AES-128 encryption/decryption and CMAC authentication in hardware but has not been submitted for FIPS 140-2 or Common Criteria certification. Its design follows NIST SP 800-38A/B standards and is qualified for secure boot and firmware update integrity verification per ST's Automotive Security Assurance Level (ASAL)-B guidance, documented in AN4947 and SPC56ECxx security reference manual.