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STMicroelectronics SPC56EL70L3CBFSY
- Part No.:
- SPC56EL70L3CBFSY
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
SPC56EL70L3CBFSY.pdf
- Description:
- IC MCU 32BIT 2MB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,395
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Product details
Overview
SPC56EL70L3CBFSY from STMicroelectronics is a 32-bit Power Architecture® automotive microcontroller with dual e200z4d cores operating up to 120 MHz, 2 MB flash with ECC, 192 KB SRAM with ECC, and integrated FlexRay (10 Mbit/s), triple FlexCAN 2.0B, and dual 12-bit ADCs - designed for SIL3/ASIL-D chassis safety applications including electric power steering and brake control units.
For engineers reviewing the SPC56EL70L3CBFSY datasheet, SPC56EL70L3CBFSY pinout, SPC56EL70L3CBFSY application, or SPC56EL70L3CBFSY equivalent, key selection criteria include lock-step core redundancy, FCCU/RCCU fault management, boot-time MBIST/LBIST, RWW EEPROM emulation, and Nexus Class 3+ debug support for ISO 26262-compliant development.
Technical Context
The device implements a Sphere of Replication (SoR) architecture covering CPU cores, eDMA, and crossbar switch, with redundant outputs verified by RCCU and aggregated into FCCU for ASIL-D fault handling. Boot-time hardware-triggered MBIST and LBIST, plus software-triggered ADC/flash BIST, enable deterministic safety verification.
It supports Decoupled Parallel mode for non-safety-critical high-throughput tasks while maintaining lock-step operation for safety-critical functions. The FMPLL provides frequency-modulated clock synthesis with CMU monitoring, and the replicated junction temperature sensor feeds real-time thermal data to FCCU for thermal fault escalation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | e200z4d dual-core Power Architecture® with VLE, MMU, 4 KB I-cache + SPE |
| Max Core Frequency | 120 MHz - enables real-time execution of SIL3 motor control loops with <1 µs jitter |
| Flash Memory | 2 MB with ECC - supports safe over-the-air updates and RWW EEPROM emulation |
| SRAM | 192 KB with ECC - provides fault-tolerant data storage for safety-critical variables |
| Safety Certification | ISO 26262 ASIL-D compliant via lock-step SoR, FCCU, RCCU, and boot-time MBIST/LBIST |
| FlexRay Interface | V2.1 Rev A, 2 channels, 64 message buffers, up to 10 Mbit/s - meets automotive x-by-wire timing requirements |
| ADC Resolution | Two independent 12-bit ADCs, 16 input channels, CTU-synchronized sampling - enables precise torque/current sensing |
| Operating Temperature | Junction range −40 °C to +150 °C - qualified for under-hood chassis control environments |
Pinout & Package
LQFP100 (14 × 14 × 1.4 mm) package with 100 leads; RoHS-compliant ECOPACK®; thermal pad exposed on underside for enhanced heat dissipation in automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA, VDDIO, VDD | Analog/digital/core supply inputs | Separate 3.3 V domains enable noise isolation between ADC, I/O, and CPU subsystems |
| RESET | Asynchronous reset input | Supports destructive/functional reset sequences with configurable watchdog window per ISO 26262 |
| CLKIN, EXTAL, XTAL | External oscillator interface | Accepts 4–40 MHz crystal or external clock for main oscillator; supports failover to RC oscillator |
| FLEXRAY_TX0/1, RX0/1 | FlexRay differential transceiver pins | Direct connection to bus termination network; supports 10 Mbit/s data rate with built-in protocol engine |
| CAN0_TX/RX, CAN1_TX/RX, CAN2_TX/RX | FlexCAN 2.0B channel interfaces | Three independent CAN controllers with 32 message objects each - suitable for multi-bus vehicle networks |
| AD0[0–15], AD1[0–15] | Analog input channels | Dual 12-bit ADCs with programmable CTU triggering - enables synchronized sampling across torque, voltage, and temperature sensors |
Key Features
| Feature | Design Value |
|---|---|
| Lock-step CPU core pair | Hardware-enforced instruction-level comparison with automatic fault detection and NMI escalation |
| Replicated safety watchdog | Dual independent SWT modules with cross-checking - prevents single-point failure in timeout supervision |
| Memory Protection Unit (MPU) | 16-region MPU isolates safety-critical code/data from application partitions - enforces ASIL-D memory access policies |
| On-chip sine wave generator (SWG) | Integrated D/A + low-pass filter for analog test signal generation - eliminates external components in diagnostic routines |
| Nexus Class 3+ debug interface | Real-time trace, data watchpoints, and non-intrusive core inspection - certified for ISO 26262 tool qualification |
| Bootloader support | On-chip CAN/UART/FlexRay bootstrap loader - enables secure field firmware updates without external programming hardware |
Applications
| Electric Power Steering (EPS) | Brake-by-Wire Control Unit |
|---|---|
|
Use Scenario: Real-time torque assist calculation and motor phase current regulation under dynamic load conditions. IC Role / Device Role / Timing Role: Primary safety controller executing ASIL-D motor control algorithms with lock-step core validation and fault-tolerant ADC sampling. Use Value: Dual 12-bit ADCs with CTU synchronization capture simultaneous phase currents and rotor position within <500 ns skew, enabling field-oriented control with <±0.5° angle error. |
Use Scenario: Coordinating hydraulic pressure modulation and wheel-speed-based ABS intervention during emergency braking. IC Role / Device Role / Timing Role: Central chassis domain controller managing FlexRay communication with ECU nodes and executing SIL3 brake actuation logic. Use Value: FlexRay V2.1 interface delivers deterministic 10 Mbit/s messaging with <2 µs jitter - meeting ISO 26262 timing constraints for brake command propagation. |
| Active Suspension Control | Chassis Domain Gateway |
|
Use Scenario: High-frequency road profile estimation and adaptive damping response using accelerometer and wheel-speed inputs. IC Role / Device Role / Timing Role: Real-time sensor fusion processor with eTimer-based PWM generation for solenoid valve control. Use Value: Three 6-channel eTimer units and two FlexPWM modules provide 24 independent 16-bit PWM outputs - enabling precise proportional valve actuation with <100 ns resolution. |
Use Scenario: Aggregating and routing messages between CAN, LIN, and FlexRay domains in zonal architecture vehicles. IC Role / Device Role / Timing Role: Safety-certified gateway controller performing protocol translation and firewall filtering between chassis and body networks. Use Value: Triple FlexCAN (32-message object each), dual LINFlexD, and FlexRay interfaces allow concurrent multi-protocol bridging without external transceivers or arbitration logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive safety microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP S32K344 | ARM Cortex-R52 dual-core, 320 MHz max, 4 MB flash, no FlexRay, includes HSE security module | Targets ASIL-D gateway and domain controller roles but lacks native FlexRay for x-by-wire systems | Select when ARM ecosystem compatibility and cryptographic acceleration are prioritized over FlexRay integration |
| Renesas RH850/U2A | 32-bit RH850 core, 200 MHz, 2 MB flash, dual-lockstep, supports CAN FD and Ethernet TSN, no FlexRay | Optimized for high-bandwidth chassis networks requiring time-sensitive networking, not FlexRay legacy systems | Choose for new designs targeting Ethernet-based chassis architectures where FlexRay is deprecated |
Compared with SPC56EL70L3CBFSY, the S32K344 offers higher compute throughput and security features but requires external FlexRay PHY for x-by-wire use cases, while the RH850/U2A provides superior CAN FD/Ethernet bandwidth at the cost of FlexRay omission - making SPC56EL70L3CBFSY uniquely suited for legacy and hybrid FlexRay/CAN chassis platforms requiring ASIL-D certification.
Availability
SPC56EL70L3CBFSY is available at Aetrix Electronics and suitable for electric power steering, brake-by-wire control units, and active suspension systems requiring stable component supply across extended automotive product lifecycles.
Supply support for SPC56EL70L3CBFSY 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 IP in safety-critical microcontrollers and analog front-ends.
The SPC56EL70 series belongs to ST's automotive-grade Power Architecture® MCU portfolio, engineered specifically for ISO 26262 ASIL-D chassis control applications where functional safety, real-time determinism, and multi-protocol connectivity are mandatory.
FAQ
What safety certifications does SPC56EL70L3CBFSY support?
SPC56EL70L3CBFSY is certified to ISO 26262 ASIL-D at the hardware level, with documented FMEDA, safety manual, and diagnostic coverage reports provided by ST. It achieves this through lock-step CPU cores, FCCU/RCCU fault management, boot-time MBIST/LBIST, and replicated watchdogs and temperature sensors - all validated per ISO 26262 Part 5 requirements.
Does SPC56EL70L3CBFSY support over-the-air (OTA) firmware updates?
Yes - the device supports secure OTA updates via its on-chip CAN/UART/FlexRay bootloader and RWW (Read-While-Write) flash capability. Firmware images can be validated using CRC and stored in protected flash sectors, with rollback protection and atomic update sequencing managed by the platform flash controller.
How is FlexRay interfacing implemented on this MCU?
SPC56EL70L3CBFSY integrates a full FlexRay V2.1 Rev A controller with two independent channels, 64 message buffers, and hardware timestamping. It requires external differential transceivers (e.g., TJA1080) and supports data rates up to 10 Mbit/s with programmable static/dynamic segments - meeting AUTOSAR FlexRay COM stack timing requirements.
What debug and trace capabilities are available?
The MCU features Nexus Class 3+ debug interface supporting real-time instruction trace, data trace, complex watchpoints, and non-intrusive core inspection. It includes dedicated trace ports, timestamped trace packets, and support for third-party tools like Lauterbach TRACE32 - all qualified for ISO 26262 tool chain certification.
SPC56EL70L3CBFSY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 100-LQFP
- Series:
- SPC56xL
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- e200z4d
- Core Size:
- 32-Bit Dual-Core
- Speed:
- 120MHz
- Connectivity:
- CANbus, LINbus, SCI, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 57
- Program Memory Size:
- 2MB (2M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 192K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 3.63V
- Data Converters:
- A/D 32x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
SPC56EL70L3CBFSY FAQ
1.How can I place an order for SPC56EL70L3CBFSY through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC56EL70L3CBFSY on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SPC56EL70L3CBFSY reliable?
The price and inventory of SPC56EL70L3CBFSY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC56EL70L3CBFSY is usually 5 days.
3.What payment methods are accepted for SPC56EL70L3CBFSY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC56EL70L3CBFSY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC56EL70L3CBFSY?
SPC56EL70L3CBFSY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC56EL70L3CBFSY order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SPC56EL70L3CBFSY?
For technical support, including SPC56EL70L3CBFSY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC56EL70L3CBFSY requirements.
6.How does Aetrix verify that SPC56EL70L3CBFSY is sourced from the original manufacturer or authorized distributors?
All SPC56EL70L3CBFSY products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SPC56EL70L3CBFSY meets industry standards.
7.What is the process for return or replacement of SPC56EL70L3CBFSY?
All SPC56EL70L3CBFSY units undergo pre-shipment inspection (PSI). If there is an issue with SPC56EL70L3CBFSY, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SPC56EL70L3CBFSY part is unused and in its original packaging.
Return procedure for SPC56EL70L3CBFSY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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