STMicroelectronics SPC564B64L7B8ECX

Overview

SPC564B64L7B8ECX 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 (CSE) for secure boot. It targets body electronics control units requiring ASIL-B compliance, such as smart junction boxes and gateway modules.

For engineers reviewing the SPC564B64L7B8ECX datasheet, SPC564B64L7B8ECX pinout, SPC564B64L7B8ECX application, or SPC564B64L7B8ECX equivalent, key selection criteria include dual-core timing architecture (e200z4d + e200z0h), 6-channel FlexCAN with 64 buffers each, 8-channel DSPI, 10/12-bit dual ADC with 62+ channels, and integrated CSE-AES128 for firmware authentication in safety-critical automotive domains.

Technical Context

This MCU implements a dual-core heterogeneous architecture: a high-performance e200z4d core (120 MHz) for real-time control and an auxiliary e200z0h core (80 MHz) for background tasks and diagnostics. Both cores share memory protection via a 16-entry MPU and support Nexus 3+ debug on LBGA256 packages.

Its system-level timing infrastructure includes 8-channel PIT, 4-channel STM, SWT watchdog, RTC/API, and eMIOS with 64 PWM/MC/IC/OC channels - enabling precise synchronized actuation and sensor sampling, especially for lighting control where ADC conversion is hardware-triggered by PWM edges.

Key Specifications

Pinout & Package

LQFP208 package (28 × 28 × 1.4 mm), RoHS-compliant, ECOPACK® certified. Pin count and signal mapping align with SPC564Bxx family mechanical drawing (Figure 3, DocID17478 Rev 9).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SPC564B64L7B8ECX, the SPC564B70L8B8ECX offers higher Flash density for complex middleware, while the SPC56EC64L8B8ECX sacrifices peak performance and dual-core capability for lower BOM cost - making the original part optimal for safety-critical, compute-intensive body domain controllers.

Availability

SPC564B64L7B8ECX is available at Aetrix Electronics and suitable for automotive body control modules, smart junction boxes, and gateway systems requiring stable component supply across multi-year vehicle production cycles.

Supply support for SPC564B64L7B8ECX 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, specializing in automotive, industrial, and power technologies with broad AEC-Q100 qualification coverage.

The SPC564Bxx series belongs to ST's SPC5 automotive MCU platform, designed specifically for ASIL-B/B+ body electronics applications demanding high integration, functional safety support, and secure communication capabilities.

FAQ

What is the maximum operating frequency of the SPC564B64L7B8ECX main CPU core?

The primary e200z4d core operates at up to 120 MHz, delivering 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's timing is validated across −40 °C to +125 °C per Section 3.14 of the datasheet.

Does the SPC564B64L7B8ECX support ISO 26262 functional safety certification?

Yes - it includes hardware safety mechanisms such as ECC on Flash/SRAM, memory protection unit (MPU), clock monitoring unit (CMU), safety watchdog timer (SWT), and user-selectable memory BIST. These features enable ASIL-B compliance when implemented per ST's SPC56 Safety Manual (UM1805), and support ASIL-D decomposition in dual-core configurations.

Can the SPC564B64L7B8ECX operate from a single 3.3 V supply?

Yes - it supports both 3.3 V and 5 V single-supply operation. When using 3.3 V, VDD_IO and VDDA must be supplied at 3.3 V ±5%, and the internal voltage regulator (Vreg) is bypassed. All I/Os are 5 V tolerant regardless of supply voltage, as specified in Section 3.6.2 of the datasheet.

How many CAN interfaces does the SPC564B64L7B8ECX integrate, and what buffer capacity do they provide?

It integrates six FlexCAN controllers, each with 64 message buffers (384 total), supporting CAN 2.0B protocol and configurable bit rates up to 1 Mbps. Each controller includes dedicated error counters, freeze mode for debugging, and loopback self-test - enabling robust multi-network automotive communication without external CAN controllers.