STMicroelectronics SPC564B64L7C9E0X

Overview

SPC564B64L7C9E0X from STMicroelectronics is a 32-bit automotive MCU based on the Power Architecture® e200z4d core, operating at up to 120 MHz and 200 MIPs. It integrates 1.5 MByte on-chip Flash with ECC, 256 KByte SRAM with ECC, and supports FlexCAN, DSPI, LINFlex, Fast Ethernet, and Cryptographic Services Engine (AES-128). It targets body electronics control units requiring functional safety compliance and real-time deterministic performance.

For engineers reviewing the SPC564B64L7C9E0X datasheet, SPC564B64L7C9E0X pinout, SPC564B64L7C9E0X application, or SPC564B64L7C9E0X equivalent, key selection criteria include dual-core timing capability (e200z4d + e200z0h), ASIL-B-ready safety features (SWT, MPU, memory BIST), CAN FD readiness via 6 FlexCAN modules, and 125 °C extended temperature operation in LQFP176 package.

Technical Context

This MCU implements a dual-core architecture: a high-performance e200z4d core (120 MHz) for main application tasks and a dedicated e200z0h core (80 MHz) for safety monitoring, communication stack offload, or real-time background services. The memory subsystem includes three independent Flash banks (code/data/parameter) with ECC, configurable MPU, and user-selectable Memory BIST for runtime integrity verification.

Peripheral integration follows automotive domain-specific requirements: 6 FlexCAN controllers (64-message buffers each), 10 LINFlex/UART channels, 8 DSPI interfaces, and a full Fast Ethernet Controller (MII interface) with hardware timestamping. Safety-critical functions are reinforced by a Safety System Watchdog Timer (SWT), Clock Monitoring Unit (CMU), and Nexus 3+ debug interface (on LBGA variants) - though this LQFP176 variant supports Nexus 1.

Key Specifications

Pinout & Package

LQFP176 (24 × 24 × 1.4 mm) package with exposed thermal pad; 176-pin configuration optimized for automotive PCB layout, including dedicated power/ground pairs, differential clock inputs, and grouped peripheral pins (e.g., CANH/CANL, ETH_MII signals).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SPC564B64L7C9E0X, the SPC564B70L7C9E0X offers scalable code density without peripheral or safety feature changes, while the SPC56EC64L7C9E0X upgrades security and performance at the cost of higher power and toolchain complexity - making the original optimal for cost-sensitive, ASIL-B body electronics where 1.5 MByte Flash suffices.

Availability

SPC564B64L7C9E0X is available at Aetrix Electronics and suitable for automotive body control modules, gateway ECUs, smart lighting systems, and electric parking brake controllers requiring stable component supply across long product lifecycles.

Supply support for SPC564B64L7C9E0X 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 solutions with broad IP portfolios and AEC-Q100-qualified manufacturing.

The SPC564Bxx family belongs to ST's SPC5 automotive MCU platform, designed specifically for ASIL-B body electronics applications demanding real-time determinism, integrated safety mechanisms, and multi-protocol connectivity in harsh environments.

FAQ

What is the maximum operating frequency of the primary CPU core in SPC564B64L7C9E0X?

The primary e200z4d core operates at up to 120 MHz with 200 MIPs performance. This frequency is achieved using the FMPLL clock generator with a 4–40 MHz external crystal or 16 MHz internal RC oscillator as reference. The core supports dynamic frequency scaling via software-controlled PLL dividers to balance performance and power consumption in different operational modes.

Does SPC564B64L7C9E0X support ISO 26262 ASIL-B compliance out of the box?

Yes - the device includes hardware safety features required for ASIL-B: ECC-protected Flash/SRAM, 16-entry MPU, Safety System Watchdog Timer (SWT), Clock Monitoring Unit (CMU), and Memory BIST. ST provides certified safety libraries and documentation (SPC564Bxx Safety Manual, AN4422) to support systematic and random hardware fault mitigation per ISO 26262 Part 5.

Can SPC564B64L7C9E0X directly drive automotive Ethernet PHYs?

Yes - it integrates a full IEEE 802.3-compliant Fast Ethernet Controller with MII interface, supporting 10/100 Mbps operation. The ETH_MII pins (TXD[3:0], RXD[3:0], TX_EN, RX_DV, etc.) connect directly to standard PHYs like the LAN8720A or KSZ8081RNB. No external MAC or glue logic is needed, and hardware timestamping supports time-sensitive networking (TSN) pre-processing.

What debugging interface does SPC564B64L7C9E0X provide in the LQFP176 package?

The LQFP176 variant supports Nexus 1 debug interface (not Nexus 3+) with TDI, TDO, TMS, TCK, and TRST pins. It enables real-time instruction trace, hardware breakpoints, and memory access via standard JTAG probes (e.g., Lauterbach TRACE32, PLS UDE). While lacking high-bandwidth streaming trace of Nexus 3+, Nexus 1 fully supports AUTOSAR OS debugging and calibration workflows for production software validation.