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STMicroelectronics SPC56EL54L5CBFSR
- Part No.:
- SPC56EL54L5CBFSR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
SPC56EL54L5CBFSR.pdf
- Description:
- IC MCU 32BIT 768KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,147
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Product details
Overview
SPC56EL54L5CBFSR from STMicroelectronics is a 32-bit Power Architecture® automotive microcontroller featuring dual e200z4d cores, 1 MB flash with ECC, 128 KB SRAM with ECC, and SIL3/ASILD-certified safety architecture including LockStep mode, FCCU, RCCU, and boot-time MBIST/LBIST. It integrates FlexCAN 2.0B, FlexRay v2.1, LINFlexD, DSPI, eTimer, FlexPWM, dual 12-bit ADCs with CTU, and operates from –40 °C to 125 °C ambient for chassis control units.
For engineers reviewing the SPC56EL54L5CBFSR datasheet, SPC56EL54L5CBFSR pinout, SPC56EL54L5CBFSR application, or SPC56EL54L5CBFSR equivalent, key selection criteria include ASIL-D safety certification, dual-core lockstep vs. decoupled parallel operation, FlexRay channel count (2), flash ECC coverage, and LFBGA257 package thermal performance in engine bay ECU designs.
Technical Context
The device implements a dual e200z4d core with Variable Length Encoding (VLE), 5-stage pipeline, and MMU, supporting both LockStep (for functional safety) and Decoupled Parallel (for high-throughput computation) execution modes. Core frequency reaches 120 MHz with integrated signal processing engine (SPE) and 4 KB instruction cache with error detection.
Safety-critical subsystems include Sphere of Replication (SoR) covering CPU, eDMA, and crossbar switch; Fault Collection and Control Unit (FCCU); Redundancy Control and Checker Unit (RCCU); replicated junction temperature sensor; and hardware-triggered MBIST/LBIST at boot. Clock monitoring (CMU), power management (PMU), and 16-region MPU enforce runtime integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | e200z4d dual core, Power Architecture®, VLE support, 5-stage pipeline, MMU |
| Max Core Frequency | 120 MHz - enables real-time deterministic control loops in chassis domain ECUs |
| Flash Memory | 1 MB with ECC - provides ASIL-D-compliant nonvolatile storage with single-bit correction/detection |
| SRAM | 128 KB on-chip SRAM with ECC - supports safety-critical data buffers and stack with memory integrity protection |
| Safety Certification | SIL3/ASIL-D per ISO 26262 - validated via LockStep SoR, FCCU, RCCU, and boot-time BIST |
| FlexRay Channels | 2 channels, 64 message buffers, up to 10 Mbit/s - meets automotive x-by-wire timing and redundancy requirements |
| ADC Resolution | Dual 12-bit ADCs, 16 input channels, programmable CTU - enables synchronized sampling for motor current/voltage sensing |
| Operating Temperature | –40 °C to 125 °C ambient - qualified for under-hood chassis control applications |
Pinout & Package
LFBGA257 (14 × 14 mm, 0.8 mm pitch) package with 257 I/O terminals. Pin functions defined per STMicroelectronics DocID15457 Rev 12, Table 5 (LFBGA257 pin function summary).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_MAIN | Main supply rail | 3.0–3.6 V core voltage input; requires dedicated decoupling per datasheet Section 3.4 |
| VRH/VRT | Reference voltage inputs | High- and low-side ADC reference pins; enable ratiometric measurement accuracy |
| FRAY_TX0 / FRAY_RX0 | FlexRay Channel 0 differential pair | Terminated differential signaling interface compliant with FlexRay v2.1 physical layer |
| CAN0_TX / CAN0_RX | FlexCAN 2.0B Channel 0 | High-speed CAN transceiver interface with 32 message objects and loopback test mode |
| ET0_CH0–ET0_CH5 | eTimer Unit 0 channels | 6-channel general-purpose timer supporting input capture, output compare, and PWM generation |
| ADC0_IN0–ADC0_IN7 | ADC0 analog inputs | Eight dedicated analog input pins for first 12-bit ADC; support external filtering and biasing networks |
Key Features
| Feature | Design Value |
|---|---|
| LockStep + Decoupled Parallel mode | Enables seamless transition between ASIL-D safety mode and high-performance dual-core compute mode without reset |
| On-chip RWW EEPROM emulation | Allows concurrent code execution and nonvolatile parameter storage updates using flash sectors with ECC |
| Nexus Class 3+ debug interface | Supports real-time trace, complex breakpointing, and safety-critical debug access with secure authentication |
| Replicated 16-channel eDMA controller | Provides fault-tolerant peripheral-to-memory data movement with independent arbitration and error reporting |
| Programmable Cross Triggering Unit (CTU) | Synchronizes ADC conversions with eTimer/FlexPWM events for precise motor phase current sampling |
| Boot-time software-triggered ADC/flash BIST | Validates analog front-end and nonvolatile memory integrity during startup without halting application execution |
Applications
| Electric Power Steering (EPS) | Brake-by-Wire Control Unit |
|---|---|
|
Use Scenario: Real-time torque assist calculation, motor position feedback processing, and fail-operational response to sensor faults. IC Role / Device Role / Timing Role: Primary safety controller executing ASIL-D algorithms with dual-core LockStep verification and FlexRay communication to steering actuator. Use Value: 120 MHz dual-core throughput ensures sub-100 µs control loop latency; FlexRay 2-channel redundancy guarantees deterministic 10 Mbit/s bus availability. |
Use Scenario: Coordinating hydraulic pressure modulation, wheel speed fusion, and emergency braking arbitration across distributed brake nodes. IC Role / Device Role / Timing Role: Central chassis domain controller interfacing via FlexCAN 2.0B and FlexRay to actuator modules while managing internal safety state machines. Use Value: Dual 12-bit ADCs with CTU enable synchronized sampling of 16 pressure/temperature sensors; 1 MB ECC flash stores certified brake logic firmware versions. |
| Active Suspension Controller | Chassis Domain Gateway |
|
Use Scenario: Processing accelerometer, ride height, and wheel speed data to compute real-time damper force commands for each corner. IC Role / Device Role / Timing Role: High-determinism compute node running model-predictive control (MPC) with SPE acceleration and eTimer-driven PWM outputs. Use Value: Signal Processing Engine (SPE) accelerates floating-point matrix operations; eTimer units generate precise 16-bit PWM signals for proportional solenoid drivers. |
Use Scenario: Aggregating and translating messages between CAN FD, LIN, FlexRay, and Ethernet domains in zonal architecture gateways. IC Role / Device Role / Timing Role: Protocol translation hub with dual FlexCAN interfaces, LINFlexD, and FlexRay v2.1 for time-triggered inter-domain synchronization. Use Value: FlexRay 2-channel capability supports time-triggered scheduling across multiple chassis subnets; 128 KB ECC SRAM buffers protocol conversion tables and routing metadata. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive safety microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SPC56EL60L5CBFSR | 1.5 MB flash, 256 KB SRAM, same safety architecture and peripherals | Higher firmware complexity (e.g., OTA update stacks, multi-layer diagnostics) | Select when >1 MB flash is required for dual-bank firmware or extended diagnostic logs |
| MC9S12XEQ512 | 16-bit HCS12X core, no FlexRay, ASIL-B only, 512 KB flash | Legacy chassis modules requiring pin-compatible upgrade path without FlexRay | Choose only for cost-sensitive brownfield designs where FlexRay and ASIL-D are not mandated |
Compared with SPC56EL54L5CBFSR, the SPC56EL60L5CBFSR offers expanded memory for advanced safety firmware but shares identical safety IP and pinout; the MC9S12XEQ512 lacks FlexRay, dual-core lockstep, and ASIL-D certification, limiting use to lower-integrity legacy systems.
Availability
SPC56EL54L5CBFSR is available at Aetrix Electronics and suitable for electric power steering, brake-by-wire control units, and active suspension controllers requiring stable component supply under AEC-Q100 Grade 1 qualification and long-term automotive lifecycle support.
Supply support for SPC56EL54L5CBFSR 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 SPC56ELx series targets ASIL-D automotive chassis applications, delivering certified safety mechanisms, FlexRay/CAN coexistence, and deterministic real-time performance for next-generation x-by-wire systems.
FAQ
What safety certifications does the SPC56EL54L5CBFSR hold?
The SPC56EL54L5CBFSR is certified to SIL3 per IEC 61508 and ASIL-D per ISO 26262, supported by hardware-level safety features including LockStep dual-core execution, Sphere of Replication (SoR), FCCU, RCCU, boot-time MBIST/LBIST, and 16-region MPU. Certification evidence is documented in ST's safety manual UM1814 and FMEDA reports.
Does this MCU support concurrent FlexRay and CAN communication?
Yes - the SPC56EL54L5CBFSR integrates one FlexRay module (2 channels) and two FlexCAN 2.0B interfaces (32 message objects each), enabling simultaneous time-triggered FlexRay messaging and event-triggered CAN communication without resource contention, as verified in the crossbar switch arbitration scheme (Section 1.5.2).
What is the purpose of the Replicated Junction Temperature Sensor?
The replicated junction temperature sensor provides redundant die-temperature measurement for thermal derating and fail-safe shutdown decisions. Its duplication aligns with ASIL-D requirements, allowing cross-checking against thermal thresholds in the FCCU to detect sensor faults before triggering NMI or safe state transitions.
Can the SPC56EL54L5CBFSR operate in Decoupled Parallel mode without safety monitoring?
No - Decoupled Parallel mode remains under FCCU supervision. While cores execute independently for performance, critical outputs (e.g., eDMA transfers, crossbar transactions) pass through RCCU for comparison, and CMU/PMU continuously monitor clock/power integrity. Safety monitoring is always active, even outside LockStep.
SPC56EL54L5CBFSR 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:
- 768KB (768K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 96K 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:
SPC56EL54L5CBFSR FAQ
1.How can I place an order for SPC56EL54L5CBFSR through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC56EL54L5CBFSR 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 SPC56EL54L5CBFSR reliable?
The price and inventory of SPC56EL54L5CBFSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC56EL54L5CBFSR is usually 5 days.
3.What payment methods are accepted for SPC56EL54L5CBFSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC56EL54L5CBFSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC56EL54L5CBFSR?
SPC56EL54L5CBFSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC56EL54L5CBFSR 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 SPC56EL54L5CBFSR?
For technical support, including SPC56EL54L5CBFSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC56EL54L5CBFSR requirements.
6.How does Aetrix verify that SPC56EL54L5CBFSR is sourced from the original manufacturer or authorized distributors?
All SPC56EL54L5CBFSR 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 SPC56EL54L5CBFSR meets industry standards.
7.What is the process for return or replacement of SPC56EL54L5CBFSR?
All SPC56EL54L5CBFSR units undergo pre-shipment inspection (PSI). If there is an issue with SPC56EL54L5CBFSR, 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 SPC56EL54L5CBFSR part is unused and in its original packaging.
Return procedure for SPC56EL54L5CBFSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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