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STMicroelectronics SPC56EL70L5CBFY
- Part No.:
- SPC56EL70L5CBFY
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
SPC56EL70L5CBFY.pdf
- Description:
- IC MCU 32BIT 2MB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,484
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Product details
Overview
SPC56EL70L5CBFY 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 sensors for chassis and safety-critical vehicle control systems.
For engineers reviewing the SPC56EL70L5CBFY datasheet, SPC56EL70L5CBFY pinout, SPC56EL70L5CBFY application, or SPC56EL70L5CBFY equivalent, key selection criteria include ASIL-D compliance, dual-core lock-step execution, on-chip RWW EEPROM emulation, FlexRay V2.1 Rev. A support, and -40 °C to 150 °C junction temperature operation in LQFP144 packaging.
Technical Context
The device employs a decoupled parallel mode enabling high-performance non-redundant execution across its two e200z4d cores, each featuring Variable Length Encoding (VLE), a five-stage pipeline, MMU, 4 KB instruction cache with error detection, and Signal Processing Engine (SPE). Core synchronization and fault containment are managed via Sphere of Replication (SoR) covering CPU, eDMA, and crossbar switch.
Safety integrity is enforced through hardware-triggered boot-time MBIST/LBIST, software-triggered ADC/flash BIST, replicated CMU/PMU units, 16-region MPU, Nexus Class 3+ debug interface, and dual-channel FlexRay with 64 message buffers - all coordinated by the Fault Collection and Control Unit (FCCU) and Redundancy Control and Checker Unit (RCCU).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | e200z4d dual core, Power Architecture®, 120 MHz max frequency, VLE support, SPE extension |
| Memory | 2 MB flash with ECC and RWW capability; 192 KB on-chip SRAM with ECC |
| Safety Certification | ISO 26262 ASIL-D compliant; SIL3 certified; lock-step SoR with FCCU/RCCU monitoring |
| Communication Interfaces | 3× FlexCAN 2.0B (32 msg objects); 2× LINFlexD; 3× DSPI; FlexRay v2.1 Rev. A (2 ch, 10 Mbit/s) |
| Analog Peripherals | Two 12-bit ADCs (16 ch total); CTU for PWM/timer-synchronized sampling; sine wave generator (SWG) |
| Operating Range | Supply: 3.0–3.6 V; ambient: –40 °C to +125 °C; junction: –40 °C to +150 °C |
| Package | LQFP144 (20 × 20 × 1.4 mm), RoHS-compliant ECOPACK® |
Pinout & Package
LQFP144 package with 144 leads, 0.5 mm pitch, body size 20 × 20 × 1.4 mm, exposed pad for thermal dissipation, compliant with JEDEC MO-220 and ECOPACK® environmental standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA, VDDIO, VDD | Power supply inputs | Dedicated analog (VDDA), I/O (VDDIO), and core (VDD) rails; require separate decoupling per datasheet Table 10 |
| RESET_B, NMI | System control inputs | Active-low reset with glitch filtering; non-maskable interrupt for critical fault escalation |
| FRAY_TX0/1, FRAY_RX0/1 | FlexRay physical layer I/O | Differential transmit/receive pairs supporting 10 Mbit/s data rate and protocol arbitration |
| CAN0_TX/RX, CAN1_TX/RX, CAN2_TX/RX | FlexCAN transceiver I/O | Three independent CAN 2.0B channels with configurable message objects and loopback test mode |
| ET0[0–5], ET1[0–5], ET2[0–5] | eTimer channel outputs | Three 6-channel general-purpose timer modules supporting input capture, output compare, and quadrature decoding |
| ADC0_IN[0–15], ADC1_IN[0–15] | Analog input multiplexers | Two independent 12-bit ADCs with shared 16-channel mux; CTU enables synchronized sampling with PWM/timers |
Key Features
| Feature | Design Value |
|---|---|
| Lock-step dual-core execution | Hardware-enforced functional equivalence between cores with real-time comparison and FCCU-triggered fail-safe response |
| On-chip RWW EEPROM emulation | Enables firmware updates and parameter storage without halting CPU execution using dedicated flash sectors |
| Replicated safety peripherals | Dual watchdog timers, dual junction temperature sensors, and redundant clock monitoring units eliminate single-point failure paths |
| FlexRay v2.1 Rev. A compliance | Full protocol stack support including static/dynamic segment scheduling, cold-start capability, and 64-message buffer management |
| Nexus Class 3+ debug interface | Real-time trace, non-intrusive debugging, and memory access during lock-step operation for ASIL-D validation |
Applications
| Electric Power Steering (EPS) | Brake-by-Wire Control Unit |
|---|---|
|
Use Scenario: Real-time torque assist calculation and motor phase control under dynamic road load conditions. IC Role / Device Role / Timing Role: Primary safety controller executing ASIL-D EPS algorithms with lock-step core verification and FlexRay-based actuator coordination. Use Value: Dual-core redundancy ensures continuous torque command validity; 120 MHz core speed meets <100 µs control loop deadlines. |
Use Scenario: Coordinating hydraulic pressure modulation across four wheel brakes during emergency stops and stability interventions. IC Role / Device Role / Timing Role: Central brake controller interfacing with ABS/VSC ECUs via FlexCAN and managing solenoid drivers via eTimer PWM outputs. Use Value: Integrated FlexRay supports deterministic 10 Mbit/s communication with master ECU; replicated ADCs enable dual-redundant pressure sensor monitoring. |
| Advanced Driver Assistance Systems (ADAS) Domain Controller | Chassis Domain Gateway |
|
Use Scenario: Aggregating radar, camera, and ultrasonic sensor data for fusion and path planning in Level 2+ ADAS functions. IC Role / Device Role / Timing Role: Safety-monitoring co-processor validating primary ADAS MCU outputs using independent lock-step execution and cross-triggered ADC sampling. Use Value: CTU-synchronized ADC acquisition ensures time-aligned sensor data; 2 MB flash stores multiple safety firmware images for rollback. |
Use Scenario: Translating messages between CAN FD, LIN, and FlexRay networks in centralized vehicle architecture. IC Role / Device Role / Timing Role: Protocol gateway managing inter-network routing, signal mapping, and diagnostic message forwarding with ASIL-B decomposition. Use Value: Three FlexCAN interfaces and dual LINFlexD channels enable concurrent multi-bus bridging; RWW flash allows over-the-air gateway software updates. |
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 S32K144 | ARM Cortex-M4F core (112 MHz), 1 MB flash, no FlexRay, ASIL-B capable only | Lacks FlexRay and full ASIL-D certification; suitable for lower-tier body control, not chassis safety | Select when FlexRay is unnecessary and cost-sensitive ASIL-B designs dominate |
| Renesas RH850/F1K | 32-bit RXv2 core (160 MHz), 2 MB flash, FlexRay v2.1, ASIL-D certified, but no dual-core lock-step | Relies on software-based safety mechanisms rather than hardware lock-step; different toolchain and ecosystem | Prefer for legacy RH850 migration paths where hardware redundancy is implemented externally |
Compared with SPC56EL70L5CBFY, the NXP S32K144 offers lower safety assurance and no FlexRay, while the Renesas RH850/F1K provides higher clock speed and same FlexRay capability but lacks hardware-enforced lock-step - making SPC56EL70L5CBFY uniquely suited for ASIL-D chassis applications requiring both protocol breadth and structural redundancy.
Availability
SPC56EL70L5CBFY is available at Aetrix Electronics and suitable for electric power steering, brake-by-wire, and ADAS domain controller applications requiring stable component supply, long-term automotive lifecycle support, and ASIL-D qualification documentation.
Supply support for SPC56EL70L5CBFY 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 technologies.
The SPC56EL70 series belongs to ST's automotive-grade Power Architecture® MCU family, designed specifically for ISO 26262 ASIL-D chassis and safety-critical vehicle control applications demanding hardware redundancy, functional safety certification, and multi-protocol connectivity.
FAQ
What is the maximum junction temperature rating for SPC56EL70L5CBFY?
The SPC56EL70L5CBFY is rated for a junction temperature range of –40 °C to +150 °C, validated per datasheet Section 3.5 and Table 12. This rating enables deployment in under-hood environments such as EPS motor control modules and brake actuators where thermal stress exceeds standard industrial limits.
Does SPC56EL70L5CBFY support over-the-air (OTA) firmware updates?
Yes - the device supports OTA updates via its on-chip RWW (Read-While-Write) flash capability, allowing background firmware programming in dedicated sectors without halting CPU execution. The integrated CAN/FlexRay/UART bootloader enables secure authenticated image loading and CRC-verified installation.
How does the Sphere of Replication (SoR) function in SPC56EL70L5CBFY?
The SoR replicates critical components - including CPU cores, eDMA controllers, and the crossbar switch - with hardware comparators that continuously validate functional equivalence. Discrepancies trigger immediate NMI assertion and FCCU-initiated fail-safe state transitions, satisfying ASIL-D fault reaction timing requirements per ISO 26262 Part 5.
Is external crystal required for FlexRay operation on SPC56EL70L5CBFY?
No - FlexRay operation uses the internal FMPLL configured with the 16 MHz RC oscillator or an external crystal source. Datasheet Section 1.5.14 confirms FMPLL supports FlexRay clock synthesis from either source, eliminating mandatory external crystal dependency while maintaining ±0.1% tolerance compliance for protocol timing.
SPC56EL70L5CBFY 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:
SPC56EL70L5CBFY FAQ
1.How can I place an order for SPC56EL70L5CBFY through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC56EL70L5CBFY 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 SPC56EL70L5CBFY reliable?
The price and inventory of SPC56EL70L5CBFY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC56EL70L5CBFY is usually 5 days.
3.What payment methods are accepted for SPC56EL70L5CBFY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC56EL70L5CBFY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC56EL70L5CBFY?
SPC56EL70L5CBFY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC56EL70L5CBFY 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 SPC56EL70L5CBFY?
For technical support, including SPC56EL70L5CBFY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC56EL70L5CBFY requirements.
6.How does Aetrix verify that SPC56EL70L5CBFY is sourced from the original manufacturer or authorized distributors?
All SPC56EL70L5CBFY 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 SPC56EL70L5CBFY meets industry standards.
7.What is the process for return or replacement of SPC56EL70L5CBFY?
All SPC56EL70L5CBFY units undergo pre-shipment inspection (PSI). If there is an issue with SPC56EL70L5CBFY, 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 SPC56EL70L5CBFY part is unused and in its original packaging.
Return procedure for SPC56EL70L5CBFY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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