STMicroelectronics SPC56EC64L7B9E0Y

Overview

SPC56EC64L7B9E0Y from STMicroelectronics is a 32-bit automotive-grade MCU based on the Power Architecture® e200z4d core, operating at up to 120 MHz and delivering 200 MIPs. It integrates 1.5 MByte on-chip Flash with ECC, 256 KByte SRAM with ECC, dual ADCs (10-bit and 12-bit), six FlexCAN interfaces, and Fast Ethernet Controller - deployed in body control modules for vehicle lighting, door/window actuation, and gateway functions.

For engineers reviewing the SPC56EC64L7B9E0Y datasheet, SPC56EC64L7B9E0Y pinout, SPC56EC64L7B9E0Y application, or SPC56EC64L7B9E0Y equivalent, key selection criteria include ASIL-B compliance support, CAN FD readiness via FlexCAN buffers, synchronized PWM-ADC timing for LED dimming, and 125 °C operation in LQFP176 packaging.

Technical Context

This MCU implements a dual-core architecture: primary e200z4d core (120 MHz) for real-time body control tasks and secondary e200z0h core (80 MHz) for safety monitoring or communication offload. Its clock system includes FMPLL with software-controlled frequency modulation, 4–40 MHz external crystal oscillator, and redundant internal RC oscillators (16 MHz and 128 kHz) with Clock Monitoring Unit (CMU) for fail-safe timing validation.

The peripheral set is optimized for automotive body electronics: eMIOS supports 64-channel PWM generation with advanced shifting for adaptive lighting; two independent ADCs provide up to 90 total channels with multiple analog watchdogs; Cryptographic Services Engine (CSE) enables AES-128 encryption and secured boot for firmware integrity.

Key Specifications

Pinout & Package

LQFP176 package with 176 leads, 0.5 mm pitch, 24 × 24 mm body, 1.4 mm height, and exposed thermal pad. Pinout validated per STMicroelectronics DocID17478 Rev 9, Figures 2 and Table 4–5.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SPC56EC64L7B9E0Y, the SPC56EC70L7B9E0Y offers scalable memory for future software expansion without changing PCB layout, while the SPC564B64L7B9E0Y reduces BOM cost by eliminating the secondary safety core - making it viable only where ISO 26262 ASIL-B decomposition is not mandated.

Availability

SPC56EC64L7B9E0Y is available at Aetrix Electronics and suitable for automotive body control modules, LED lighting systems, and gateway units requiring stable component supply across extended vehicle lifecycles.

Supply support for SPC56EC64L7B9E0Y 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 technologies with vertical manufacturing and long-term product longevity programs.

The SPC56ECxx series belongs to ST's SPC5 automotive MCU platform, designed specifically for ASIL-B compliant body electronics applications demanding high integration, functional safety, and real-time deterministic performance.

FAQ

What is the maximum operating frequency and core configuration of the SPC56EC64L7B9E0Y?

The SPC56EC64L7B9E0Y features a dual-core Power Architecture® configuration: primary e200z4d core running at up to 120 MHz (200 MIPs) and secondary e200z0h core at up to 80 MHz (75 MIPs). Both cores operate concurrently with shared memory resources and independent interrupt handling, enabling real-time task partitioning for automotive body control applications.

Does the SPC56EC64L7B9E0Y support functional safety standards such as ISO 26262?

Yes, the SPC56EC64L7B9E0Y is designed to support ASIL-B compliance per ISO 26262. It includes hardware safety mechanisms such as ECC on Flash/SRAM/Data Flash, 16-entry MPU, Clock Monitoring Unit (CMU), Memory BIST, and Nexus 3+ debug interface (on LBGA variants) - all documented in ST's safety manual UM1823 and certified by TÜV SÜD.

What package type and pin count does the SPC56EC64L7B9E0Y use?

The SPC56EC64L7B9E0Y uses the LQFP176 package: 176-pin, 0.5 mm pitch, 24 × 24 mm body size, 1.4 mm height, with exposed thermal pad. This package is confirmed in ST's DocID17478 Rev 9, Table 1 and Figure 2, and supports industrial reflow profiles including JEDEC J-STD-020D.

How many CAN interfaces does the SPC56EC64L7B9E0Y support, and what are their buffer capacities?

The SPC56EC64L7B9E0Y supports up to six FlexCAN interfaces, each with 64 message buffers. These buffers support mailbox-based transmission/reception, priority arbitration, and flexible filtering - enabling simultaneous handling of powertrain, chassis, and body CAN traffic in gateway applications without host CPU intervention.