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STMicroelectronics SPC56EL70L5CBFR
- Part No.:
- SPC56EL70L5CBFR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
SPC56EL70L5CBFR.pdf
- Description:
- IC MCU 32BIT 2MB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,052
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Product details
Overview
SPC56EL70L5CBFR 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 SPC56EL70L5CBFR datasheet, SPC56EL70L5CBFR pinout, SPC56EL70L5CBFR application, or SPC56EL70L5CBFR equivalent, key selection criteria include ASIL-D compliance evidence, dual-core lock-step validation status, FlexRay V2.1 Rev. A timing margin at 10 Mbit/s, RWW EEPROM emulation capability, and LQFP144 thermal derating above 125 °C ambient.
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 covers CPU cores, eDMA controllers, and crossbar switch - all monitored by FCCU with hardware-triggered MBIST/LBIST and software-triggered ADC/flash BIST.
Memory subsystem includes 2 MB on-chip flash with single-bit error correction and double-bit error detection, plus 192 KB SRAM with ECC and RWW support enabling background flash reprogramming. Clocking relies on FMPLL with main oscillator and 16 MHz RC reference, with CMU monitoring all clock domains for fault detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | e200z4d dual core, Power Architecture®, VLE support, 5-stage pipeline with dual-issue capability |
| Max Core Frequency | 120 MHz - enables real-time deterministic response in chassis domain controllers |
| Flash Memory | 2 MB with ECC - supports ASIL-D fault containment and field firmware updates with integrity verification |
| SRAM | 192 KB with ECC and RWW - allows concurrent code execution and EEPROM emulation without system stall |
| Safety Certification | SIL3 / ASIL-D compliant - validated via FCCU, RCCU, replicated NMI, and 16-region MPU enforcement |
| FlexRay Interface | V2.1 Rev. A, 2 channels, 64 message buffers, up to 10 Mbit/s - meets automotive x-by-wire timing requirements |
| Operating Temperature | −40 °C to 125 °C ambient, −40 °C to 150 °C junction - qualified for under-hood chassis applications |
| Supply Voltage | 3.0 V to 3.6 V - compatible with automotive 3.3 V rail with ±10% tolerance |
Pinout & Package
LQFP144 package (20 × 20 × 1.4 mm), RoHS-compliant, ECOPACK® certified. Pinout defined per STMicroelectronics DocID023953 Rev 5, Table 4 (LQFP144 pin function summary).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_MAIN | Main power supply input | 3.0–3.6 V supply for core logic and peripherals; requires dedicated 100 nF + 10 µF decoupling |
| VDDA | Analog power supply | Independent 3.3 V rail for ADC/SWG; isolated to minimize noise coupling into 12-bit conversion |
| VRST | Reset input (active-low) | Asynchronous reset with glitch filter; initiates destructive or functional reset sequence per configuration |
| CLKIN | External crystal oscillator input | Accepts 4–40 MHz crystal; feeds FMPLL for precise clock generation with CMU supervision |
| FRAY_TX0 / FRAY_RX0 | FlexRay Channel 0 differential pair | LVDS-compatible interface supporting 10 Mbit/s data rate with built-in bus guardian logic |
| CAN0_TX / CAN0_RX | FlexCAN 2.0B Channel 0 | ISO 11898-1 compliant transceiver interface with 32 message objects and programmable filtering |
| ET0_CH0–ET0_CH5 | eTimer Unit 0 channels | 6-channel general-purpose timer supporting input capture, output compare, and quadrature decoding |
| ADC0_IN0–ADC0_IN15 | ADC0 analog inputs | 16 single-ended or 8 differential inputs; synchronized via CTU to eTimer/FlexPWM for motor control sampling |
Key Features
| Feature | Design Value |
|---|---|
| Lock-step CPU replication | Dual e200z4d cores execute identical instructions with cycle-accurate comparison; mismatch triggers NMI and FCCU fault reporting |
| On-chip RWW flash | Enables live firmware patching: one bank executes while another is erased/programmed - critical for OTA updates in safety systems |
| Replicated junction temperature sensor | Two independent sensors with ±2.5 °C accuracy over −40 °C to 150 °C - provides redundancy for thermal shutdown decisions |
| Programmable Cross Triggering Unit (CTU) | Hardware-synchronizes ADC conversions with eTimer and FlexPWM events - eliminates software latency in motor current sampling |
| Nexus Class 3+ debug interface | Real-time trace, non-intrusive debugging, and memory access during lock-step operation - supports ISO 26262 tool qualification |
| Boot-time BIST coverage | MBIST (memory), LBIST (logic), ADC BIST, and flash BIST executed before application code - satisfies ASIL-D startup self-test requirement |
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 chassis controller executing ASIL-D safety routines, managing FlexPWM-driven 3-phase inverter, and sampling motor currents via synchronized ADC/CTU. Use Value: Dual-core lock-step ensures fault detection within <5 µs; RWW flash enables secure firmware rollback during ECU update failure. |
Use Scenario: Coordinating hydraulic pressure modulation across four wheel brakes using redundant solenoid drivers. IC Role / Device Role / Timing Role: Safety-critical actuator controller interfacing with FlexRay backbone for vehicle-level brake coordination and CAN for diagnostic communication. Use Value: Replicated FCCU and RCCU validate all safety outputs; 10 Mbit/s FlexRay guarantees sub-100 µs message latency for emergency stop commands. |
| Air Suspension Control Module | Active Roll Stabilization System |
|
Use Scenario: Closed-loop height adjustment using four corner air springs with pressure/temperature feedback. IC Role / Device Role / Timing Role: Chassis domain MCU acquiring analog sensor data (pressure, temp, ride height), running PID control, and driving solenoid valves via eTimer PWM. Use Value: 12-bit ADC with CTU synchronization achieves <±0.5% pressure measurement accuracy; 192 KB ECC SRAM hosts multiple control loop buffers. |
Use Scenario: Dynamic anti-roll bar torque generation using opposing electric motors on left/right sway bars. IC Role / Device Role / Timing Role: High-performance motion controller executing torque vectoring algorithms with sub-200 µs loop time, communicating via FlexCAN and LIN. Use Value: Decoupled parallel mode runs diagnostics and comms stacks while safety-critical torque loops run in lock-step; SPE unit accelerates FFT-based vibration analysis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive chassis microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP S32K144 | ARM Cortex-M4F core, 112 MHz max, 1 MB flash, no FlexRay, ASIL-B certified | Lacks FlexRay and full ASIL-D certification; suitable for non-x-by-wire chassis modules | Select when FlexRay is not required and cost-sensitive ASIL-B designs dominate. |
| Renesas RH850/F1K | 32-bit RXv2 core, 120 MHz, 2 MB flash, FlexRay V2.1, ASIL-D certified, but no RWW flash | Same FlexRay performance and safety level, but lacks background reprogramming capability | Prefer when legacy RH850 toolchain compatibility outweighs need for live firmware patching. |
Compared with SPC56EL70L5CBFR, the S32K144 offers lower gate count and ARM ecosystem advantages but omits FlexRay and ASIL-D; the RH850/F1K matches FlexRay and safety level yet sacrifices RWW functionality essential for robust OTA deployment.
Availability
SPC56EL70L5CBFR is available at Aetrix Electronics and suitable for electric power steering, brake-by-wire, and active suspension systems requiring stable component supply across automotive production lifecycles.
Supply support for SPC56EL70L5CBFR 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, designing and manufacturing microcontrollers, power ICs, sensors, and automotive-grade SoCs since 1987.
The SPC56EL70 series belongs to ST's SPC5 automotive MCU platform, engineered specifically for ASIL-D chassis and safety-critical applications requiring integrated FlexRay, lock-step processing, and comprehensive hardware safety mechanisms.
FAQ
What is the maximum allowable junction temperature for continuous operation?
The SPC56EL70L5CBFR is rated for continuous operation up to 150 °C junction temperature, verified per JEDEC JESD51-2 and documented in Section 3.5 of the datasheet. Thermal derating begins above 125 °C ambient in LQFP144 package, requiring PCB copper pour and airflow modeling per ST AN4485 guidelines.
Does the device support boot-from-flash with external debugger connection?
Yes - the on-chip CAN/UART/FlexRay bootstrap loader enables firmware loading via any of those interfaces without external programming hardware. Nexus Class 3+ debug remains fully accessible during boot, allowing breakpoint insertion and register inspection before application start.
How is Flash ECC implemented, and what error levels does it correct?
Flash uses Hamming-code-based ECC providing single-bit error correction and double-bit error detection (SEC-DED). Each 64-bit word includes 8 parity bits; uncorrectable errors trigger FCCU fault reporting and safe state entry per configured error handling policy in SSCM registers.
Can the two e200z4d cores operate independently outside lock-step mode?
Yes - Decoupled Parallel Mode allows asymmetric task distribution: one core handles safety-critical lock-step routines while the other runs non-safety Linux services or diagnostics. Mode switching is controlled via MC_ME module registers and requires FCCU acknowledgment.
SPC56EL70L5CBFR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 144-LQFP
- Series:
- SPC56xL
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
SPC56EL70L5CBFR FAQ
1.How can I place an order for SPC56EL70L5CBFR through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC56EL70L5CBFR 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 SPC56EL70L5CBFR reliable?
The price and inventory of SPC56EL70L5CBFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC56EL70L5CBFR is usually 5 days.
3.What payment methods are accepted for SPC56EL70L5CBFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC56EL70L5CBFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC56EL70L5CBFR?
SPC56EL70L5CBFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC56EL70L5CBFR 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 SPC56EL70L5CBFR?
For technical support, including SPC56EL70L5CBFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC56EL70L5CBFR requirements.
6.How does Aetrix verify that SPC56EL70L5CBFR is sourced from the original manufacturer or authorized distributors?
All SPC56EL70L5CBFR 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 SPC56EL70L5CBFR meets industry standards.
7.What is the process for return or replacement of SPC56EL70L5CBFR?
All SPC56EL70L5CBFR units undergo pre-shipment inspection (PSI). If there is an issue with SPC56EL70L5CBFR, 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 SPC56EL70L5CBFR part is unused and in its original packaging.
Return procedure for SPC56EL70L5CBFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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