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STMicroelectronics SPC56EL70L5CBFSR
- Part No.:
- SPC56EL70L5CBFSR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
SPC56EL70L5CBFSR.pdf
- Description:
- IC MCU 32BIT 2MB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,543
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Product details
Overview
SPC56EL70L5CBFSR 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), FlexCAN 2.0B, LINFlexD, and DSPI interfaces - designed for SIL3/ASIL-D chassis safety applications including electric power steering and brake control units.
For engineers reviewing the SPC56EL70L5CBFSR datasheet, SPC56EL70L5CBFSR pinout, SPC56EL70L5CBFSR application, or SPC56EL70L5CBFSR equivalent, key selection criteria include lock-step safety architecture, dual-core decoupled parallel mode, FCCU/RCCU fault handling, boot-time MBIST/LBIST, and -40 °C to 150 °C junction temperature operation.
Technical Context
The device implements a Sphere of Replication (SoR) covering CPU cores, eDMA, and crossbar switch, with redundant outputs verified by RCCU and monitored by FCCU. It supports both lock-step mode for functional safety and decoupled parallel mode for high-performance deterministic execution.
Its safety subsystem includes replicated watchdogs, junction temperature sensors, NMI, 16-region MPU, CMU, PMU, and CRC unit - all coordinated via FCCU for ASIL-D compliance. Boot-time hardware-triggered MBIST/LBIST and software-triggered ADC/flash BIST enable comprehensive self-test coverage at startup.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | e200z4d dual core, Power Architecture®, VLE support, 5-stage pipeline, MMU, 4 KB I-cache with EDC |
| Max Core Frequency | 120 MHz - enables real-time deterministic control loops in chassis systems |
| Flash Memory | 2 MB with ECC - supports robust firmware storage and RWW EEPROM emulation |
| SRAM | 192 KB with ECC - provides safe, error-corrected data workspace for safety-critical variables |
| Safety Certification | SIL3 / ASIL-D compliant - validated sphere of replication, FCCU, RCCU, and BIST coverage |
| Operating Junction Temp | -40 °C to +150 °C - qualified for under-hood automotive environments |
| Supply Voltage | 3.0 V to 3.6 V - single-rail operation simplifies power design in vehicle ECUs |
| Communication Interfaces | 3× FlexCAN 2.0B (32 msg objects), 2× LINFlexD, 3× DSPI, 1× FlexRay v2.1 Rev A (2 ch, 64 buffers) |
Pinout & Package
LQFP144 package (20 × 20 × 1.4 mm), RoHS-compliant, ECOPACK® certified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDIO | Power supply inputs | Dedicated analog/digital/IO rails ensure noise isolation for ADC and timing circuits |
| RESET_B | Active-low reset input | Asynchronous, glitch-filtered reset with configurable external watchdog window |
| CLKIN, XTAL | External clock reference | Supports crystal (4–40 MHz) or external clock source for FMPLL synchronization |
| FLEXRAY_TX0/1, RX0/1 | FlexRay differential transceiver I/O | Integrated termination and biasing for 10 Mbit/s bus communication without external components |
| CAN_H/CAN_L (x3) | FlexCAN differential bus pins | On-die CAN transceivers compliant with ISO 11898-2, supporting wake-up and loopback modes |
| ADC0_IN0–15, ADC1_IN0–15 | Analog input channels | 12-bit SAR ADCs with programmable CTU for synchronized sampling with PWM/timer events |
| NEXUS_TDI/TDO/TMS/TCK | Nexus Class 3+ debug interface | Real-time trace, non-intrusive debugging, and safety-aware breakpoint management |
Key Features
| Feature | Design Value |
|---|---|
| Lock-step & Decoupled Mode | Dual-core operation: lock-step for safety-critical tasks, decoupled parallel for performance-intensive functions |
| Sphere of Replication (SoR) | CPU, eDMA, XBAR replicated with RCCU output checking - enables fault detection at hardware level |
| Fault Collection and Control Unit (FCCU) | Centralized fault manager with configurable error response (NMI, reset, interrupt) and memory-mapped status registers |
| Boot-time BIST | Hardware-triggered MBIST/LBIST on power-up; software-triggered ADC/flash BIST - meets ISO 26262 diagnostic coverage requirements |
| Replicated Safety Peripherals | Dual watchdogs, dual junction temperature sensors, and replicated clock monitoring units (CMU) |
| Memory Protection | 16-region MPU with access privilege enforcement - prevents unauthorized code/data access across safety domains |
Applications
| Electric Power Steering (EPS) | Brake-by-Wire Control Unit |
|---|---|
Use Scenario: Real-time torque assist calculation, motor position feedback processing, and fail-operational redundancy management in column-assist and rack-assist EPS systems. IC Role / Device Role / Timing Role: Primary safety controller executing ASIL-D motor control algorithms with lock-step core verification and hardware-accelerated PWM generation. Use Value: 120 MHz dual-core throughput ensures sub-100 µs control loop latency; FlexRay interface synchronizes with vehicle dynamics modules at 10 Mbit/s. |
Use Scenario: Coordinating hydraulic actuator pressure control, wheel-speed-based slip detection, and cross-channel redundancy arbitration in electro-hydraulic brake systems. IC Role / Device Role / Timing Role: SIL3-certified master controller managing dual independent brake channels with replicated ADCs, timers, and CAN/FlexRay comms. Use Value: Dual 12-bit ADCs with CTU enable synchronized sampling of 32+ sensor inputs; ECC-protected 2 MB flash stores multiple firmware variants for fail-safe fallback. |
| Advanced Driver Assistance Systems (ADAS) Domain Controller | Chassis Domain Gateway |
Use Scenario: Aggregating and preprocessing sensor data (wheel speed, yaw rate, lateral acceleration) for lane-keeping and adaptive cruise control decision layers. IC Role / Device Role / Timing Role: High-integrity preprocessor with deterministic eTimer/FlexPWM for actuator interface and time-triggered FlexCAN/FlexRay messaging. Use Value: Decoupled parallel mode allows one core to run safety monitor while the other executes time-critical sensor fusion - no shared resource contention. |
Use Scenario: Bridging CAN FD, LIN, and FlexRay networks between body, powertrain, and chassis ECUs in zonal architectures. IC Role / Device Role / Timing Role: Safety-aware gateway with firewall MPU regions, CRC-accelerated message filtering, and FCCU-monitored inter-network routing logic. Use Value: 3× FlexCAN + 2× LINFlexD + FlexRay enables concurrent multi-bus protocol translation; 192 KB ECC SRAM buffers message queues with fault containment. |
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, AURIX-style safety peripherals but no FlexRay | Targeted at ASIL-D powertrain and ADAS; lacks native FlexRay, requires external PHY for high-speed chassis comms | Select when ARM ecosystem tooling and higher compute density outweigh need for integrated FlexRay |
| Infineon AURIX TC397 | Tri-core (2× TriCore + 1× DSP), 300 MHz, 16 MB flash, integrated HSM, but only LIN/CAN/Ethernet interfaces | Optimized for secure gateway and central domain controllers; no FlexRay or native sine-wave generator | Prefer for secure boot, crypto offload, and Ethernet backbone integration over chassis-specific FlexRay timing |
Compared with SPC56EL70L5CBFSR, the S32K344 offers higher clock frequency and larger memory but omits FlexRay - requiring external components for chassis bus compliance - while the TC397 delivers superior security features and memory capacity at the cost of FlexRay and sine-wave generation capability essential for certain chassis actuator interfaces.
Availability
SPC56EL70L5CBFSR is available at Aetrix Electronics and suitable for electric power steering, brake-by-wire, and chassis domain gateway applications requiring stable component supply, long-term automotive lifecycle support, and ASIL-D qualification documentation.
Supply support for SPC56EL70L5CBFSR 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 solutions with broad IP portfolios in microcontrollers, analog, and MEMS.
The SPC56EL70 series belongs to ST's automotive-grade Power Architecture® MCU family, engineered specifically for SIL3/ASIL-D chassis safety applications where functional integrity, real-time determinism, and multi-bus connectivity are mandatory.
FAQ
What safety certifications does the SPC56EL70L5CBFSR hold?
The SPC56EL70L5CBFSR is certified to ISO 26262 ASIL-D and IEC 61508 SIL3 for functional safety. Its safety architecture includes hardware-replicated cores, FCCU-managed fault reporting, boot-time MBIST/LBIST, and runtime CRC checking - all documented in ST's certified safety manual (UM2152).
Does this MCU support FlexRay communication without external transceivers?
Yes - the SPC56EL70L5CBFSR integrates a full FlexRay v2.1 Rev A controller with two independent channels, 64 message buffers, and built-in bus drivers. It supports data rates up to 10 Mbit/s and includes internal termination and biasing, eliminating the need for external PHY components in standard implementations.
What is the role of the Signal Processing Engine (SPE) in this MCU?
The SPE is a fixed-point SIMD extension tightly coupled to each e200z4d core, accelerating math-intensive operations like matrix multiplication, FIR filtering, and PID loop calculations. It operates in parallel with the main ALU and is used extensively in motor control and sensor signal conditioning within ASIL-D chassis applications.
Can the SPC56EL70L5CBFSR operate in single-core mode for non-safety tasks?
Yes - the device supports configurable core usage: lock-step (both cores identical), decoupled parallel (independent execution), or single-core mode. In single-core mode, one core can be powered down or repurposed for diagnostics, bootloader execution, or non-safety firmware, while the other handles primary control tasks.
SPC56EL70L5CBFSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 144-LQFP
- Series:
- SPC56xL
- Packaging:
- Tape & Reel (TR)
- 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:
- 96
- 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:
SPC56EL70L5CBFSR FAQ
1.How can I place an order for SPC56EL70L5CBFSR through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC56EL70L5CBFSR 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 SPC56EL70L5CBFSR reliable?
The price and inventory of SPC56EL70L5CBFSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC56EL70L5CBFSR is usually 5 days.
3.What payment methods are accepted for SPC56EL70L5CBFSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC56EL70L5CBFSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC56EL70L5CBFSR?
SPC56EL70L5CBFSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC56EL70L5CBFSR 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 SPC56EL70L5CBFSR?
For technical support, including SPC56EL70L5CBFSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC56EL70L5CBFSR requirements.
6.How does Aetrix verify that SPC56EL70L5CBFSR is sourced from the original manufacturer or authorized distributors?
All SPC56EL70L5CBFSR 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 SPC56EL70L5CBFSR meets industry standards.
7.What is the process for return or replacement of SPC56EL70L5CBFSR?
All SPC56EL70L5CBFSR units undergo pre-shipment inspection (PSI). If there is an issue with SPC56EL70L5CBFSR, 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 SPC56EL70L5CBFSR part is unused and in its original packaging.
Return procedure for SPC56EL70L5CBFSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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