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STMicroelectronics SPC56EL54L3CBFSR
- Part No.:
- SPC56EL54L3CBFSR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
SPC56EL54L3CBFSR.pdf
- Description:
- IC MCU 32BIT 768KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,884
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Product details
Overview
SPC56EL54L3CBFSR from STMicroelectronics is a 32-bit Power Architecture® automotive MCU with dual e200z4d cores, 1 MB Flash (ECC), 128 KB SRAM (ECC), and SIL3/ASILD safety certification for chassis and safety-critical systems. It operates at up to 120 MHz, integrates FlexCAN 2.0B, FlexRay v2.1 Rev A, and dual 12-bit ADCs with CTU synchronization, and targets brake-by-wire and electronic power steering control units.
For engineers reviewing the SPC56EL54L3CBFSR datasheet, SPC56EL54L3CBFSR pinout, SPC56EL54L3CBFSR application, or SPC56EL54L3CBFSR equivalent, key selection criteria include LockStep vs. Decoupled Parallel core mode, FCCU/RCCU safety architecture compliance, FlexRay channel count and message buffer depth, and LFBGA257 thermal performance under 150 °C junction conditions.
Technical Context
The device implements a dual-core e200z4d CPU with Variable Length Encoding (VLE), MMU, 4 KB instruction cache with EDC, and Signal Processing Engine (SPE). Core operation supports both LockStep mode for ASIL D fault detection and Decoupled Parallel mode for high-throughput deterministic execution.
Safety architecture includes Sphere of Replication (SoR) covering CPU, eDMA, and crossbar switch; Fault Collection and Control Unit (FCCU); Redundancy Control and Checker Unit (RCCU); hardware-triggered MBIST/LBIST; and replicated junction temperature sensor. Boot-time software-triggered BIST covers ADC and Flash.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | e200z4d dual core, Power Architecture®, VLE support, 5-stage pipeline with dual issue |
| Max Core Frequency | 120 MHz - enables real-time control loop execution ≤8.3 µs per cycle |
| Flash Memory | 1 MB with ECC - supports ASIL D-compliant code storage and RWW EEPROM emulation |
| SRAM | 128 KB with ECC - provides fault-tolerant data buffering for safety-critical variables |
| Safety Certification | SIL3 / ASIL D - validated for chassis applications including braking and steering |
| FlexRay Interface | V2.1 Rev A, 2 channels, 64 message buffers, up to 10 Mbit/s - meets automotive x-by-wire timing determinism |
| ADC System | Dual 12-bit, 16-channel, CTU-synchronized - enables precise motor phase current sampling with sub-µs inter-conversion alignment |
Pinout & Package
LFBGA257 package (14 mm × 14 mm, 0.8 mm pitch), thermally enhanced for automotive under-hood deployment up to 150 °C junction temperature.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA_1, VDDA_2 | Analog supply inputs | Independent 3.3 V rails for ADC reference stability; require dedicated decoupling per datasheet Table 6 |
| VRH, VRL | ADC reference voltage terminals | Accept external 3.3 V reference or internal VDDA; enable ratiometric measurement accuracy |
| FRAY_TX0, FRAY_RX0 | FlexRay Channel 0 differential pair | LVDS-compatible signals supporting 10 Mbit/s deterministic bus communication |
| CAN_H0, CAN_L0 | FlexCAN 0 differential transceiver pins | ISO 11898-2 compliant physical layer interface for diagnostic and control messaging |
| ET0_CLKA, ET0_CLKB | eTimer 0 clock inputs | Accept external quadrature encoder signals for motor position feedback capture |
| NEXUS_TDI, NEXUS_TDO | Nexus Class 3+ debug interface | Enable real-time trace, non-intrusive breakpoints, and safety-critical runtime monitoring |
Key Features
| Feature | Design Value |
|---|---|
| LockStep + Decoupled Parallel core modes | Enables runtime switching between ASIL D fault detection (LockStep) and peak performance (Decoupled) |
| FCCU with programmable error severity mapping | Allows configurable response (NMI, reset, or safe state) based on fault classification and system state |
| Replicated junction temperature sensor | Provides redundant thermal monitoring for overtemperature shutdown in safety islands |
| On-chip CAN/UART bootstrap loader | Supports field firmware updates without external programming hardware via standard vehicle buses |
| Programmable Cross Triggering Unit (CTU) | Synchronizes ADC conversions with PWM edge events and timer captures for motor control timing coherence |
Applications
| Brake-by-Wire Control Unit | Electric Power Steering (EPS) |
|---|---|
Use Scenario: Real-time hydraulic pressure modulation and fail-operational redundancy management in electromechanical brake systems. IC Role / Device Role / Timing Role: Primary safety controller executing ISO 26262 ASIL D brake actuation logic with dual-core LockStep validation. Use Value: FCCU-driven safe state transition within <500 µs upon detected core divergence, meeting FMVSS 135 requirements. | Use Scenario: Torque overlay control and road feel emulation using multi-axis torque sensor fusion and motor current regulation. IC Role / Device Role / Timing Role: Main EPS ECU processor managing 12-bit ADC sampling, CTU-synchronized PWM generation, and FlexCAN diagnostics. Use Value: Sub-µs ADC/PWM synchronization ensures <±0.5° steering angle error under 100 Hz disturbance frequencies. |
| Active Suspension Controller | Chassis Domain Controller |
Use Scenario: Adaptive damping control using accelerometer and wheel speed inputs with predictive filtering algorithms. IC Role / Device Role / Timing Role: High-speed signal processing node interfacing with 16-channel ADCs, eTimers, and FlexRay backbone. Use Value: SPE-accelerated FIR filtering achieves 2 kHz closed-loop bandwidth while maintaining ASIL B decomposition. | Use Scenario: Centralized coordination of brake, steering, and suspension subsystems via FlexRay and dual FlexCAN networks. IC Role / Device Role / Timing Role: Safety-aggregated domain controller with SoR-protected crossbar switch enabling deterministic inter-subsystem messaging. Use Value: 64 FlexRay message buffers guarantee <100 µs end-to-end latency for critical chassis arbitration frames. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive safety microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SPC56EL60L3CBFSR | 1.5 MB Flash, 192 KB SRAM, same core and safety architecture | Higher code/data footprint for complex AUTOSAR OS stacks and OTA update partitions | Select when >1 MB Flash is required for dual-bank secure boot and application + safety monitor separation |
| TC297TP128F200NAC | TriCore™ architecture, 200 MHz, 4 MB Flash, no FlexRay, AURIX™ safety concept | Targeted at higher-performance ADAS fusion but lacks native FlexRay for legacy chassis networks | Select for new designs prioritizing TriCore toolchain maturity and higher compute density, accepting CAN FD instead of FlexRay |
Compared with SPC56EL60L3CBFSR, this part trades Flash/SRAM capacity for lower cost and power in mid-tier chassis ECUs; versus TC297, it retains FlexRay compatibility essential for OEM-specific brake network topologies but offers lower peak MIPS.
Availability
SPC56EL54L3CBFSR is available at Aetrix Electronics and suitable for brake-by-wire systems, electric power steering modules, and active suspension controllers requiring stable component supply across automotive production lifecycles.
Supply support for SPC56EL54L3CBFSR 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 belongs to ST's automotive-grade Power Architecture® MCU family, designed specifically for ISO 26262 ASIL D chassis safety applications requiring hardware-redundant execution and certified safety mechanisms.
FAQ
What is the maximum ambient operating temperature for SPC56EL54L3CBFSR?
The device is rated for −40 °C to +125 °C ambient temperature per datasheet Section 3.3. This rating applies to the LFBGA257 package under specified airflow and PCB copper pour conditions, and aligns with AEC-Q100 Grade 1 qualification for under-hood automotive use.
Does SPC56EL54L3CBFSR support JTAG and Nexus debugging simultaneously?
No - the device shares physical pins between IEEE 1149.1 JTAG and Nexus Class 3+ interfaces. Pin muxing (Section 2.4) requires selecting one debug protocol at boot; Nexus is preferred for real-time trace and safety monitoring, while JTAG is used for boundary scan and initial programming.
How is EEPROM emulation implemented in the on-chip flash memory?
It uses built-in RWW (Read-While-Write) capability with dedicated flash sectors managed by the Platform Flash Memory Controller. The driver implements wear-leveling across 4 KB pages and CRC-protected metadata to achieve >100k write cycles, as validated in SPC56ELx reference manual Section 1.5.7.
What clock sources are available for the FMPLL and how is failover handled?
The FMPLL accepts input from main crystal oscillator (4–40 MHz), 16 MHz RC oscillator, or external clock pin. Clock Monitoring Units (CMUs) continuously validate source stability; upon failure, hardware automatically switches to backup source and asserts FCCU interrupt without software intervention, as defined in Section 1.5.13.
SPC56EL54L3CBFSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 100-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:
- 16
- 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:
SPC56EL54L3CBFSR FAQ
1.How can I place an order for SPC56EL54L3CBFSR through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC56EL54L3CBFSR 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 SPC56EL54L3CBFSR reliable?
The price and inventory of SPC56EL54L3CBFSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC56EL54L3CBFSR is usually 5 days.
3.What payment methods are accepted for SPC56EL54L3CBFSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC56EL54L3CBFSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC56EL54L3CBFSR?
SPC56EL54L3CBFSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC56EL54L3CBFSR 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 SPC56EL54L3CBFSR?
For technical support, including SPC56EL54L3CBFSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC56EL54L3CBFSR requirements.
6.How does Aetrix verify that SPC56EL54L3CBFSR is sourced from the original manufacturer or authorized distributors?
All SPC56EL54L3CBFSR 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 SPC56EL54L3CBFSR meets industry standards.
7.What is the process for return or replacement of SPC56EL54L3CBFSR?
All SPC56EL54L3CBFSR units undergo pre-shipment inspection (PSI). If there is an issue with SPC56EL54L3CBFSR, 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 SPC56EL54L3CBFSR part is unused and in its original packaging.
Return procedure for SPC56EL54L3CBFSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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