STMicroelectronics SPC584B70E3NDC0Y

Overview

SPC584B70E3NDC0Y from STMicroelectronics is a 32-bit Power Architecture automotive microcontroller featuring an e200z420 CPU core running 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 AEC-Q100 qualification for ASIL-B safety-critical applications such as engine control units and transmission controllers.

For engineers reviewing the SPC584B70E3NDC0Y datasheet, SPC584B70E3NDC0Y pinout, SPC584B70E3NDC0Y application, or SPC584B70E3NDC0Y equivalent, this part supports IEEE 802.3-2008 Ethernet, 8 ISO CAN-FD interfaces, 14 LINFlexD modules, dual PLLs, and Nexus Class 3+ debug - critical for real-time powertrain and chassis domain controller design.

Technical Context

The SPC584B70E3NDC0Y implements a dual-PLL architecture: one PLL provides stable clocking for peripherals and system logic, while the second delivers FM-modulated clocks to the computational shell for noise-sensitive timing. Its crossbar switch enables concurrent access to Flash, SRAM, and peripherals by multiple bus masters with end-to-end ECC protection across all data paths.

It integrates a Hardware Security Module (HSM) with dedicated 176 KB flash (144 KB code + 32 KB data), separate from main memory, and supports boot via asynchronous CAN or LIN/UART using Boot Assist Flash (BAF). The enhanced ADC system includes two independent 12-bit SAR converters, one supervisor 12-bit SAR, and one 10-bit SAR with STDBY mode support.

Key Specifications

Pinout & Package

eTQFP100 package: 100-pin thermally enhanced quad flat pack with exposed thermal pad, 0.5 mm pitch, RoHS-compliant, rated for automotive under-hood operation up to 150 °C junction temperature.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SPC584B70E3NDC0Y, the S32K344 offers higher performance and ASIL-D readiness but requires ARM toolchain migration, while the RH850/U2A extends thermal and EMC margins at the cost of Power Architecture continuity and legacy SPC5 ecosystem compatibility.

Availability

SPC584B70E3NDC0Y is available at Aetrix Electronics and suitable for engine control units, transmission control modules, ADAS domain controllers, and electric power steering systems requiring stable component supply across automotive production lifecycles.

Supply support for SPC584B70E3NDC0Y 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, sensors, and automotive-grade silicon for industrial and automotive markets.

The SPC584Bx series belongs to ST's automotive Power Architecture MCU family, engineered specifically for ASIL-B powertrain and chassis applications where deterministic real-time performance, functional safety, and long-term automotive qualification are mandatory.

FAQ

What is the maximum operating junction temperature for SPC584B70E3NDC0Y?

The device is qualified for continuous operation at a junction temperature of –40 °C to +150 °C, validated per AEC-Q100 Grade 0 requirements. Thermal derating begins above 135 °C ambient depending on PCB layout and airflow; the eTQFP100 package includes an exposed thermal pad that must be soldered to a thermal plane for reliable 150 °C operation.

Does SPC584B70E3NDC0Y support CAN FD with simultaneous classical CAN operation?

Yes - all eight MCAN modules support ISO CAN-FD (up to 5 Mbps data phase) and are fully backward-compatible with classical CAN 2.0B. Each module operates independently; multiple CAN FD and classical CAN buses can run concurrently, with message RAM partitioning and flexible filtering configured per channel via the MCAN protocol engine.

How is the Hardware Security Module (HSM) isolated from the main CPU?

The HSM contains a dedicated e200z0 core, 176 KB flash (144 KB code + 32 KB data), and cryptographic accelerators physically separated from the main e200z420 core. Communication occurs only through defined mailbox registers with hardware-enforced access control; no shared memory or direct bus access exists between HSM and main domain.

Can SPC584B70E3NDC0Y execute code directly from SRAM during runtime?

Yes - the device supports XIP (execute-in-place) from its 128 KB general-purpose SRAM, enabled via the Flash Configuration Register (FCR). This allows time-critical ISR routines or safety monitor code to run with zero flash access latency, and the SRAM retains full contents in HALT and STOP low-power modes.