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STMicroelectronics SPC56EL70L5CBFSY
- Part No.:
- SPC56EL70L5CBFSY
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
SPC56EL70L5CBFSY.pdf
- Description:
- IC MCU 32BIT 2MB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,210
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Product details
Overview
SPC56EL70L5CBFSY 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. It implements SIL3/ASIL-D safety architecture including lock-step mode, FCCU, RCCU, MBIST/LBIST, and replicated watchdog/temperature sensor - deployed in chassis control units and brake-by-wire systems.
For engineers reviewing the SPC56EL70L5CBFSY datasheet, SPC56EL70L5CBFSY pinout, SPC56EL70L5CBFSY application, or SPC56EL70L5CBFSY equivalent, key selection criteria include ASIL-D compliance, dual-core lock-step validation, FlexRay V2.1 channel count, flash ECC coverage, and LQFP144 thermal performance at 150 °C junction temperature.
Technical Context
The device uses a decoupled parallel execution mode for non-safety-critical tasks while maintaining lock-step operation for safety-critical functions. Its Sphere of Replication (SoR) covers CPU cores, eDMA, and crossbar switch, with outputs verified by RCCU and fault reporting handled by FCCU.
Memory subsystem includes 2 MB on-chip flash with single-bit error correction and double-bit error detection, 192 KB SRAM with ECC, and RWW capability for EEPROM emulation. Clocking relies on FMPLL with main oscillator and 16 MHz RC oscillator, supported by CMU and PMU for monitoring and power gating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | e200z4d dual core, Power Architecture®, VLE support, MMU, 4 KB instruction cache with EDC |
| Max Core Frequency | 120 MHz - enables real-time deterministic response for chassis control loops |
| Flash Memory | 2 MB with ECC - ensures data integrity for safety-critical firmware storage |
| SRAM | 192 KB with ECC - supports ASIL-D runtime data protection |
| Safety Certification | SIL3 / ASIL-D compliant - validated for chassis and safety-critical automotive applications |
| FlexRay Interface | 2-channel, V2.1 Rev. A, 64 message buffers, up to 10 Mbit/s - meets automotive x-by-wire timing requirements |
| Operating Temperature | Junction range –40 °C to 150 °C - qualified for under-hood deployment |
| Supply Voltage | 3.0 V to 3.6 V - compatible with standard automotive 3.3 V rail systems |
Pinout & Package
LQFP144 package (20 × 20 × 1.4 mm), RoHS-compliant, ECOPACK® certified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA | Analog supply | 3.3 V analog power for ADC, SWG, and internal reference circuits |
| VDD | Digital core supply | 3.3 V digital supply for CPU, memory, and peripheral logic |
| RESET_B | Active-low reset input | Asynchronous hardware reset with glitch filtering and external watchdog window support |
| CLKIN | Main oscillator input | Accepts 4–40 MHz crystal or external clock for FMPLL reference |
| FRAY_TX0 / FRAY_RX0 | FlexRay Channel 0 differential pair | Compliant with ISO 17458-4; supports 10 Mbit/s deterministic communication |
| CAN0_TX / CAN0_RX | FlexCAN 2.0B Channel 0 | Supports 1 Mbit/s baud rate; 32 configurable message objects with FIFO buffering |
| ET0_CH0–ET0_CH5 | eTimer Unit 0 channels | 6-channel general-purpose timer supporting input capture, output compare, and PWM generation |
| ADC0_IN0–ADC0_IN15 | ADC0 analog inputs | 12-bit resolution, 16-channel multiplexed inputs with CTU-triggered synchronization |
Key Features
| Feature | Design Value |
|---|---|
| Lock-step dual-core execution | Hardware-enforced functional equivalence between cores with RCCU comparison and FCCU fault reporting |
| Boot-time BIST | Hardware-triggered MBIST/LBIST and software-triggered ADC/flash BIST - reduces startup diagnostic time |
| Replicated safety peripherals | Dual watchdog timers, dual junction temperature sensors, and NMI - eliminates single-point failure paths |
| Memory Protection Unit | 16-region MPU - enforces privilege-level access control for ASIL-D partitioning |
| Nexus Class 3+ debug interface | Real-time trace, non-intrusive debugging, and run-control - supports ISO 26262 tool qualification workflows |
| On-chip bootstrap loader | Integrated CAN/UART/FlexRay bootloader - enables field firmware updates without external programming hardware |
Applications
| Brake-by-Wire Control Unit | Electric Power Steering (EPS) |
|---|---|
Use Scenario: Real-time actuation of hydraulic valves and motor drivers in fail-operational braking systems. IC Role / Device Role / Timing Role: Primary safety controller executing ISO 26262 ASIL-D software partitions with lock-step core verification and FlexRay-based vehicle network coordination. Use Value: Dual-core lock-step + FCCU reporting enables <100 µs fault detection latency and safe state transition per ISO 26262 Part 5 Annex D. |
Use Scenario: Torque assist calculation and motor phase control in column-assist EPS systems. IC Role / Device Role / Timing Role: High-integrity motion controller interfacing with torque sensor, motor encoder, and CAN FD backbone via FlexCAN and eTimer-driven PWM. Use Value: 120 MHz e200z4d core + 6-channel eTimer units deliver sub-50 µs current loop update cycles for smooth steering feel. |
| Active Suspension Controller | Chassis Domain Controller |
Use Scenario: Adaptive damping control using accelerometer feedback and solenoid valve actuation. IC Role / Device Role / Timing Role: Safety-relevant domain processor managing ADC-sampled sensor data, CTU-synchronized sampling, and FlexRay-scheduled actuator commands. Use Value: 12-bit ADC with programmable CTU triggering achieves ±0.5 LSB linearity across –40 °C to 125 °C ambient range. |
Use Scenario: Centralized chassis coordination integrating brake, steering, and suspension signals over FlexRay/CAN. IC Role / Device Role / Timing Role: ASIL-D gateway MCU aggregating data from distributed ECUs, performing cross-domain safety checks, and managing boot-time BIST sequences. Use Value: 2 MB ECC flash stores redundant safety firmware images; RWW capability enables seamless OTA updates without system interruption. |
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-M7 dual-core, 320 MHz max, 4 MB flash, no FlexRay, AURIX-style safety island | Targets next-gen zonal architectures; lacks native FlexRay but offers Ethernet TSN | Select when migrating to ARM ecosystem or requiring Ethernet connectivity over FlexRay |
| Infineon AURIX TC397 | Tri-core TriCore™, 300 MHz, 8 MB flash, 2x FlexRay, higher ASIL-D FIT rate, larger package (LQFP216) | Used in high-end ADAS fusion controllers; supports more concurrent safety channels | Select for applications needing >2 FlexRay channels or extended memory for multi-image redundancy |
Compared with SPC56EL70L5CBFSY, the S32K344 trades FlexRay for Ethernet and ARM tooling, while the TC397 extends FlexRay capacity and memory at the cost of larger footprint and higher power - making SPC56EL70L5CBFSY optimal for cost-constrained, FlexRay-centric chassis modules.
Availability
SPC56EL70L5CBFSY is available at Aetrix Electronics and suitable for brake-by-wire systems, electric power steering units, and active suspension controllers requiring stable component supply across automotive production lifecycles.
Supply support for SPC56EL70L5CBFSY 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 specializing in automotive, industrial, and power solutions, with deep expertise in functional safety and embedded processing.
This part belongs to the SPC56EL70 series - a family of Power Architecture® MCUs designed specifically for ASIL-D chassis and safety-critical automotive applications requiring lock-step execution and comprehensive hardware safety mechanisms.
FAQ
What safety certifications does SPC56EL70L5CBFSY support?
SPC56EL70L5CBFSY is certified to IEC 61508 SIL3 and ISO 26262 ASIL-D for chassis applications. Its safety architecture includes lock-step cores, FCCU fault reporting, MBIST/LBIST, and replicated peripherals - all documented in ST's certified safety manual (UM2195) and TÜV SÜD assessment reports.
Does this MCU support Flash EEPROM emulation?
Yes - it provides built-in Read-While-Write (RWW) capability enabling true EEPROM emulation in flash. The 2 MB flash is partitioned to allow concurrent code execution and data logging, with ECC protection applied to both program and emulated data sectors.
What debug interface does SPC56EL70L5CBFSY use?
It features a Nexus Class 3+ interface compliant with IEEE-ISTO 5001, supporting real-time trace, non-intrusive breakpoints, and run-control. This enables full ISO 26262 tool qualification for debugging and coverage analysis in safety-critical development workflows.
Can SPC56EL70L5CBFSY operate without an external crystal?
Yes - it integrates a 16 MHz RC oscillator qualified for startup and fail-safe operation. While the main oscillator (CLKIN) supports crystal or external clock input, the RC oscillator allows functional boot and basic operation if the crystal fails - critical for ASIL-D fault containment.
SPC56EL70L5CBFSY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 144-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:
- 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:
SPC56EL70L5CBFSY FAQ
1.How can I place an order for SPC56EL70L5CBFSY through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC56EL70L5CBFSY 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 SPC56EL70L5CBFSY reliable?
The price and inventory of SPC56EL70L5CBFSY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC56EL70L5CBFSY is usually 5 days.
3.What payment methods are accepted for SPC56EL70L5CBFSY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC56EL70L5CBFSY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC56EL70L5CBFSY?
SPC56EL70L5CBFSY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC56EL70L5CBFSY 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 SPC56EL70L5CBFSY?
For technical support, including SPC56EL70L5CBFSY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC56EL70L5CBFSY requirements.
6.How does Aetrix verify that SPC56EL70L5CBFSY is sourced from the original manufacturer or authorized distributors?
All SPC56EL70L5CBFSY 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 SPC56EL70L5CBFSY meets industry standards.
7.What is the process for return or replacement of SPC56EL70L5CBFSY?
All SPC56EL70L5CBFSY units undergo pre-shipment inspection (PSI). If there is an issue with SPC56EL70L5CBFSY, 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 SPC56EL70L5CBFSY part is unused and in its original packaging.
Return procedure for SPC56EL70L5CBFSY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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