STMicroelectronics SPC584B70E1NHC0Y

Overview

SPC584B70E1NHC0Y from STMicroelectronics is a 32-bit Power Architecture automotive microcontroller featuring an e200z420 CPU core operating at up to 120 MHz, 2112 KB on-chip flash (2048 KB code + 64 KB data), 128 KB general-purpose SRAM plus 64 KB core local RAM, and ASIL-B functional safety compliance per ISO 26262. It integrates 8 MCAN interfaces with ISO CAN-FD support, 1 Ethernet 10/100 Mbps controller with IEEE 1588 timestamping, and dual PLLs for segregated clock domains - deployed in engine control units and battery management systems requiring deterministic real-time response.

For engineers reviewing the SPC584B70E1NHC0Y datasheet, SPC584B70E1NHC0Y pinout, SPC584B70E1NHC0Y application, or SPC584B70E1NHC0Y equivalent, this part delivers verified AEC-Q100 Grade 0 qualification, crossbar-switch concurrency with end-to-end ECC, HSM-secured boot via CAN/LIN, and production-ready timing architecture for automotive powertrain and chassis domain controllers.

Technical Context

The SPC584B70E1NHC0Y implements a dual-PLL system: PLL0 supplies stable clocks to peripherals including eMIOS, DSPI, and LINFlexD, while PLL1 generates the FM-modulated computational shell clock for the e200z420 core. Its crossbar switch enables concurrent access by six bus masters (eDMA, CPU, HSM, etc.) to Flash, SRAM, and peripherals - all protected by end-to-end ECC on data paths and memory arrays.

Safety-critical operation is enforced through dedicated hardware: FCCU collects failure notifications from MEMU (memory error reporting), CRC units (two independent channels), and SWTs; BCTU synchronizes ADC conversions with eMIOS PWM edges to eliminate sampling jitter; and the HSM contains a cryptographic co-processor with 176 KB dedicated flash (144 KB code + 32 KB data) for secure key storage and firmware authentication.

Key Specifications

Pinout & Package

eTQFP100 package: 100-pin thermally enhanced quad flat pack with exposed thermal pad, 0.5 mm pitch, RoHS-compliant lead-free finish. Pinout validated per STMicroelectronics SPC584Bx IO Definition document (Rev 4, Section 3).

Key Features

Applications

Equivalent & Alternatives

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

Compared with NXP S32K344 and Renesas RH850/U2A, the SPC584B70E1NHC0Y uniquely combines Power Architecture performance, integrated IEEE 1588 Ethernet, CAN-FD, and BCTU-synchronized ADC - making it optimal for next-generation domain controllers requiring multi-protocol convergence and sub-µs timing determinism.

Availability

SPC584B70E1NHC0Y is available at Aetrix Electronics and suitable for engine control units, electric power steering systems, and battery management systems requiring stable component supply across automotive production lifecycles.

Supply support for SPC584B70E1NHC0Y 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, and automotive-grade components for industrial and transportation markets.

The SPC584Bx series belongs to ST's automotive Power Architecture MCU product line, engineered specifically for ASIL-B powertrain and chassis applications demanding high computational throughput, functional safety, and multi-protocol connectivity in harsh environments.

FAQ

What is the maximum junction temperature rating for SPC584B70E1NHC0Y?

The SPC584B70E1NHC0Y is rated for a maximum junction temperature of +150 °C, validated per AEC-Q100 Grade 0 requirements. This specification enables deployment in under-hood locations such as engine compartments and transmission control modules where ambient temperatures exceed 125 °C.

Does SPC584B70E1NHC0Y support bootloading over CAN-FD?

No - bootloading is supported only over asynchronous CAN (Classical CAN) or LIN/UART via the Boot Assist Flash (BAF) module. The MCAN interfaces operate in CAN-FD mode only after application firmware initialization; BAF does not utilize CAN-FD data-rate features.

How many independent clock domains does the dual PLL system provide?

The dual PLL system provides two physically isolated clock domains: PLL0 generates clocks for peripherals (eMIOS, DSPI, LINFlexD, ADC), while PLL1 supplies the FM-modulated computational shell clock to the e200z420 core - ensuring deterministic timing separation between control logic and real-time I/O operations.

Is the Hardware Security Module (HSM) accessible to the main CPU for shared memory operations?

No - the HSM is a fully isolated subsystem with its own e200z0 core, dedicated 176 KB flash, and private SRAM. Communication occurs exclusively via mailbox registers and secure interrupts; no shared memory or direct bus access exists between HSM and main CPU to preserve security boundaries.