STMicroelectronics SPC564B70L7B9E0X

Overview

SPC564B70L7B9E0X from STMicroelectronics is a 32-bit automotive MCU based on the Power Architecture® e200z4d core, operating up to 120 MHz and delivering 200 MIPs. It integrates 2 MByte on-chip Flash with ECC, 256 KByte SRAM with ECC, dual ADC (10-bit/12-bit), 6 FlexCAN interfaces, Fast Ethernet Controller, and Cryptographic Services Engine (AES-128). It targets body control modules requiring functional safety, real-time diagnostics, and secure boot in vehicles.

For engineers reviewing the SPC564B70L7B9E0X datasheet, SPC564B70L7B9E0X pinout, SPC564B70L7B9E0X application, or SPC564B70L7B9E0X equivalent, key selection criteria include ASIL-B compliance support, integrated safety watchdog (SWT), memory protection unit (MPU), CAN sampler for low-power wake-up, and Nexus 1 debug interface compatibility.

Technical Context

This MCU implements a dual-core architecture: primary e200z4d core (120 MHz) for main application execution and secondary e200z0h core (80 MHz) for safety monitoring or background tasks. It features a 16-entry MPU, user-selectable Memory BIST, and dedicated diagnostic peripherals including advanced PWM generation synchronized with ADC sampling for lighting control.

The device supports comprehensive automotive communication: six FlexCAN controllers (64 buffers each), ten LINFlex/UART channels, eight DSPI interfaces, I²C, dual-channel FlexRay (128 buffers), and IEEE 802.3-compliant Fast Ethernet Controller with MII interface. Clocking includes 4–40 MHz external oscillator, 16 MHz internal RC, FMPLL, and dual auxiliary oscillators (32 kHz and 128 kHz).

Key Specifications

Pinout & Package

LQFP176 package (24 × 24 × 1.4 mm), RoHS-compliant, ECOPACK® certified. Pin count and signal mapping align with SPC564Bxx family mechanical drawing Figure 2 (DocID17478 Rev 9, p.15).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SPC564B70L7B9E0X, the SPC564B74L7B9E0X offers memory headroom without peripheral or clock changes, while the SPC56EC70L7B9E0X delivers higher compute density and expanded FlexRay capacity-both require PCB layout review due to identical LQFP176 footprint but distinct thermal and power delivery profiles.

Availability

SPC564B70L7B9E0X is available at Aetrix Electronics and suitable for automotive body control modules, gateway ECUs, LED headlamp drivers, and smart junction boxes requiring stable component supply across long vehicle production lifecycles.

Supply support for SPC564B70L7B9E0X 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 management ICs with over 45 years of automotive qualification experience.

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

FAQ

What is the maximum operating frequency of the SPC564B70L7B9E0X core?

The primary e200z4d core operates at up to 120 MHz, delivering 200 MIPs performance. The secondary e200z0h core runs at up to 80 MHz (75 MIPs). Both cores are fully independent and support lockstep or split-mode operation per ISO 26262 requirements, with frequency stability maintained via the integrated Clock Monitoring Unit (CMU) and FMPLL.

Does the SPC564B70L7B9E0X support functional safety certification?

Yes - the device includes hardware safety features required for ISO 26262 ASIL-B compliance: Safety System Watchdog Timer (SWT), 16-entry Memory Protection Unit (MPU), ECC on Flash/SRAM/Data Flash, Memory BIST, and Clock Monitoring Unit (CMU). ST provides safety manuals, FMEDA reports, and diagnostic software libraries to support certification efforts.

What Ethernet interface does the SPC564B70L7B9E0X implement?

The device integrates a full IEEE 802.3-compliant Fast Ethernet Controller supporting 10/100 Mbps operation via Media Independent Interface (MII). It includes dedicated MII signal pins (RXD[3:0], TXD[3:0], RX_DV, TX_EN, etc.), internal MAC, and DMA integration - no external PHY is required for basic MII connectivity, though an external PHY is needed for RMII or PHY-side features like auto-negotiation.

How many CAN interfaces does the SPC564B70L7B9E0X support?

The SPC564B70L7B9E0X supports up to six independent FlexCAN controllers, each with 64 message buffers. All six are accessible in the LQFP176 package variant. Each FlexCAN module complies with ISO 11898-1:2015 and supports FD-capable bit rates up to 5 Mbps when paired with external transceivers, with built-in error counters and self-test modes.