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STMicroelectronics SPC56EL70L5CBOSR
- Part No.:
- SPC56EL70L5CBOSR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
SPC56EL70L5CBOSR.pdf
- Description:
- IC MCU 32BIT 2MB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,014
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Product details
Overview
SPC56EL70L5CBOSR 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 CPU, FCCU, RCCU, MBIST/LBIST, and replicated watchdog/temperature sensors for chassis and safety-critical vehicle control systems.
For engineers reviewing the SPC56EL70L5CBOSR datasheet, SPC56EL70L5CBOSR pinout, SPC56EL70L5CBOSR application, or SPC56EL70L5CBOSR equivalent, key selection considerations include dual-core lock-step validation, ASIL-D fault collection via FCCU, FlexRay V2.1 Rev. A compliance, 12-bit ADC synchronization via CTU, and LQFP144 package thermal rating up to 150 °C junction temperature.
Technical Context
The device employs a decoupled parallel mode enabling high-performance non-redundant execution across its two e200z4d cores while retaining lock-step capability for safety-critical tasks. Its Sphere of Replication (SoR) covers CPU, eDMA, and crossbar switch, with outputs verified by RCCU and monitored by FCCU for fault detection and classification.
Memory subsystem includes ECC-protected 2 MB flash and 192 KB SRAM, both supporting RWW for EEPROM emulation. Safety mechanisms include boot-time MBIST/LBIST, software-triggered ADC/flash BIST, replicated junction temperature sensor, and 16-region MPU - all coordinated under the MC_ME and SSCM modules for deterministic ASIL-D runtime behavior.
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 chassis control loop execution within sub-100 µs latency budgets |
| Flash Memory | 2 MB with ECC - supports secure firmware updates and ASIL-D-compliant code storage |
| SRAM | 192 KB with ECC - provides fault-tolerant data buffering for safety-critical variables and stack |
| Safety Certification | SIL3 / ASIL-D compliant - validated via FCCU, RCCU, SoR, and hardware BIST coverage per ISO 26262 |
| FlexRay Interface | V2.1 Rev. A, 2 channels, 64 message buffers, up to 10 Mbit/s - meets automotive x-by-wire timing and determinism requirements |
| ADC Resolution | Two 12-bit ADCs, 16 input channels, CTU-synchronized sampling - enables precise sensor fusion in brake or steering ECUs |
| Operating Temperature | Junction range –40 °C to 150 °C - qualified for under-hood deployment in electric powertrain and chassis modules |
Pinout & Package
LQFP144 (20 × 20 × 1.4 mm) package with exposed pad for thermal dissipation; 144-pin layout supports full I/O muxing for FlexRay, FlexCAN, DSPI, LINFlexD, eTimer, FlexPWM, and GPIO functions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA, VDDIO | Analog & I/O supply | 3.0–3.6 V rail; separate analog domain ensures ADC accuracy and noise immunity |
| VRH, VRL | ADC reference | External high/low reference inputs enabling ratiometric sensor measurement with ±0.1% tolerance |
| FRAY_TX0/FRAY_RX0 | FlexRay Channel 0 | Differential transmit/receive pair compliant with FlexRay physical layer spec V2.1 Rev. A |
| CAN0_TX/CAN0_RX | FlexCAN 2.0B interface | High-speed CAN transceiver pins supporting 1 Mbit/s with built-in bus fault protection |
| ET0_CH0–ET0_CH5 | eTimer Unit 0 channels | 6-channel general-purpose timer supporting input capture, output compare, and quadrature decoding |
| PWM_A0–PWM_D1 | FlexPWM outputs | Eight 16-bit PWM signals across two modules - suitable for motor phase control in EPS or brake actuation |
Key Features
| Feature | Design Value |
|---|---|
| Lock-step CPU redundancy | Dual e200z4d cores execute identical instructions with cycle-accurate comparison; mismatch triggers NMI and FCCU fault reporting |
| On-chip RWW EEPROM emulation | 2 MB flash partitioned for simultaneous read/erase/write - enables over-the-air update without application interruption |
| Replicated safety watchdog | Two independent SWT modules with configurable timeout windows and cross-checking logic to prevent silent failure |
| Programmable Cross Triggering Unit (CTU) | Hardware-synchronized triggering between eTimer, FlexPWM, and ADC - eliminates software jitter in closed-loop control |
| Nexus Class 3+ debug interface | Real-time trace, non-intrusive debugging, and memory access during operation - essential for ASIL-D verification and certification |
| Bootloader with CAN/UART/FlexRay support | ROM-resident bootloader enables field firmware updates via any of three major automotive serial protocols |
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 FlexPWM-driven 3-phase inverter gate timing. Use Value: 120 MHz dual-core performance ensures ≤ 50 µs control loop latency; CTU-synchronized ADC sampling eliminates phase error in current sensing. | Use Scenario: Redundant hydraulic pressure modulation and fail-operational valve actuation in electro-hydraulic brake systems. IC Role / Device Role / Timing Role: SIL3-certified chassis controller managing FlexRay-distributed braking commands, replicated watchdog supervision, and 12-bit ADC-based pressure feedback. Use Value: Dual-channel FlexRay at 10 Mbit/s guarantees deterministic < 100 µs end-to-end message latency; FCCU reports faults to central domain controller within 2 µs. |
| Active Suspension Controller | ADAS Domain Gateway |
Use Scenario: High-frequency road profile estimation and adaptive damping control using accelerometer and position sensor fusion. IC Role / Device Role / Timing Role: Real-time signal processor running Kalman filters on SPE-enhanced e200z4d core, with synchronized 12-bit ADC acquisition and eTimer-based PWM generation. Use Value: Signal Processing Engine (SPE) accelerates floating-point math by 3× vs. base core; CTU ensures < 100 ns skew between sensor sampling and actuator response. | Use Scenario: Aggregation and routing of camera, radar, and ultrasonic data across CAN FD, FlexRay, and Ethernet (via external PHY). IC Role / Device Role / Timing Role: Safety-monitoring gateway coordinating communication stacks, performing health checks on connected ADAS ECUs via FlexCAN message objects and FCCU-managed diagnostics. Use Value: 32-message-object FlexCAN buffers enable concurrent handling of 16 diagnostic + 16 functional messages; replicated junction temperature sensor validates thermal derating during sustained data throughput. |
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, includes Ethernet MAC | Targets zonal architectures requiring Ethernet backbone; lacks native FlexRay for legacy chassis networks | Select when migrating to AUTOSAR Adaptive or requiring time-sensitive networking (TSN) support |
| Renesas RH850/U2A | 32-bit RXv3 core, 400 MHz, 8 MB flash, dual-lockstep, supports CAN FD and LIN but no FlexRay | Focused on powertrain and body control; certified for ASIL-D but with different safety library implementation model | Prefer for high-code-density applications needing >4 MB flash and extended peripheral integration beyond chassis scope |
Compared with SPC56EL70L5CBOSR, the S32K344 offers higher clock speed and Ethernet but omits FlexRay - critical for existing chassis networks - while the RH850/U2A delivers greater flash capacity and core performance but requires re-architecting safety software due to divergent FCCU-equivalent module design.
Availability
SPC56EL70L5CBOSR is available at Aetrix Electronics and suitable for electric power steering, brake-by-wire, active suspension, and ADAS domain gateway applications requiring stable component supply, long-term automotive lifecycle support, and ASIL-D qualification documentation.
Supply support for SPC56EL70L5CBOSR 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, specializing in automotive, industrial, and power solutions with vertical manufacturing and functional safety expertise.
The SPC56EL70 series belongs to ST's SPC5 automotive MCU platform, designed specifically for ASIL-D chassis and safety applications requiring lock-step processing, FlexRay connectivity, and comprehensive hardware-based safety mechanisms.
FAQ
What is the maximum ambient temperature rating for SPC56EL70L5CBOSR?
The device is rated for ambient temperatures from –40 °C to 125 °C in accordance with its LQFP144 package specifications and JEDEC JESD22-A104 reliability testing. This rating applies under defined airflow and PCB copper pour conditions per ST's thermal characterization data (DocID023953 Rev 5, Table 12).
Does SPC56EL70L5CBOSR support CAN FD?
No, SPC56EL70L5CBOSR integrates three FlexCAN 2.0B interfaces only, each supporting up to 1 Mbit/s and 32 message objects. It does not implement CAN FD protocol features such as variable bit rate or extended data length; CAN FD capability requires migration to ST's SPC58NG or S32K families.
How is the FlexRay interface clocked and configured?
The FlexRay module uses an internal FMPLL-derived clock source, configurable via the MC_CGM module to meet V2.1 Rev. A timing requirements. Configuration is performed through the FRAY_CR register set, with channel-specific settings for static/dynamic segment lengths, symbol window, and startup frame parameters - all accessible via ST's SPC5 Studio configuration tools.
Is there hardware support for AES encryption on this MCU?
No, SPC56EL70L5CBOSR does not include a dedicated cryptographic accelerator or AES engine. Security functions are limited to CRC unit, memory protection (MPU), and secure boot via ROM-based BAM - advanced encryption must be implemented in software or offloaded to an external secure element per ISO/SAE 21434 threat analysis.
SPC56EL70L5CBOSR 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:
SPC56EL70L5CBOSR FAQ
1.How can I place an order for SPC56EL70L5CBOSR through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC56EL70L5CBOSR 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 SPC56EL70L5CBOSR reliable?
The price and inventory of SPC56EL70L5CBOSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC56EL70L5CBOSR is usually 5 days.
3.What payment methods are accepted for SPC56EL70L5CBOSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC56EL70L5CBOSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC56EL70L5CBOSR?
SPC56EL70L5CBOSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC56EL70L5CBOSR 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 SPC56EL70L5CBOSR?
For technical support, including SPC56EL70L5CBOSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC56EL70L5CBOSR requirements.
6.How does Aetrix verify that SPC56EL70L5CBOSR is sourced from the original manufacturer or authorized distributors?
All SPC56EL70L5CBOSR 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 SPC56EL70L5CBOSR meets industry standards.
7.What is the process for return or replacement of SPC56EL70L5CBOSR?
All SPC56EL70L5CBOSR units undergo pre-shipment inspection (PSI). If there is an issue with SPC56EL70L5CBOSR, 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 SPC56EL70L5CBOSR part is unused and in its original packaging.
Return procedure for SPC56EL70L5CBOSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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