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STMicroelectronics SPC56AP54L5CEFAR
- Part No.:
- SPC56AP54L5CEFAR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
SPC56AP54L5CEFAR.pdf
- Description:
- IC MCU 32BIT 768KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,401
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Product details
Overview
SPC56AP54L5CEFAR from STMicroelectronics is a 32-bit Power Architecture® e200z0h-based automotive MCU with 1088 KB Flash (1024 KB code + 64 KB EEPROM emulation), 80 KB ECC-protected SRAM, and AEC-Q100 qualification for chassis/safety systems. It integrates dual FlexCAN 2.0B interfaces, FlexRay v2.1, LINFlex, DSPI, eTimer, 10-bit ADC with 27 channels, and fail-safe features including FCCU, safety port, and Nexus® L2+ debug.
For engineers reviewing the SPC56AP54L5CEFAR datasheet, SPC56AP54L5CEFAR pinout, SPC56AP54L5CEFAR application, or SPC56AP54L5CEFAR equivalent, key selection criteria include ASIL-B-capable safety architecture, dual CAN/FlexRay coexistence, -40°C to 125°C operation in LQFP144, and boot-assisted CAN/UART bootloader support for ECU reprogramming.
Technical Context
The SPC56AP54L5CEFAR implements a single-issue e200z0h CPU core running at 64 MHz with Variable Length Encoding (VLE), coupled with a crossbar switch (XBAR) for deterministic peripheral arbitration. Its memory subsystem includes ECC-protected on-chip Flash and SRAM, with dedicated erase/program controllers and error correction status monitoring.
Safety-critical operation is enforced via integrated Fault Collection and Control Unit (FCCU), non-maskable interrupts, register protection schemes, and a dedicated safety port derived from FlexCAN. The device supports concurrent real-time communication through 2 FlexCANs (32 message buffers each), 1 FlexRay channel (64 message buffers, up to 10 Mbit/s), and 5 DSPI modules with automatic chip select.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | e200z0h Power Architecture® core, 64 MHz max frequency, VLE instruction set for code density and deterministic timing. |
| Flash Memory | 1024 KB on-chip code Flash + 64 KB data Flash for EEPROM emulation, both with ECC and dedicated controller. |
| RAM | 80 KB on-chip SRAM with ECC protection, enabling safe storage of critical runtime variables and stack data. |
| ADC | 10-bit SAR ADC with 27 input channels, <1 µs full-precision conversion time, programmable CTU for synchronized sampling. |
| Communication | 2 × FlexCAN 2.0B (32 MB each), 1 × FlexRay v2.1 (64 MB, dual/single channel), 5 × DSPI, 2 × LINFlex, Nexus® L2+ debug interface. |
| Safety Features | AEC-Q100 qualified, FCCU, safety port, SWT with pseudo-random servicing sequence, ECC on Flash/SRAM, register protection scheme. |
| Operating Temp | -40°C to +125°C ambient, validated for automotive chassis and safety-critical applications per ISO 26262 requirements. |
Pinout & Package
LQFP144 package (20 × 20 mm, 144-pin), RoHS-compliant ECOPACK®, rated for industrial and automotive temperature ranges.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA, VSSA | Analog power supply/ground | Independent 3.3 V or 5 V analog domain supply with low-noise regulation for ADC reference stability. |
| VDDIO, VSSIO | I/O power supply/ground | Configurable 3.3 V or 5 V I/O domain supporting mixed-voltage interfacing with external sensors and transceivers. |
| VRH, VRL | ADC reference inputs | External high/low reference voltage pins enabling precise ratiometric or absolute ADC measurements. |
| CAN_H, CAN_L | FlexCAN differential bus lines | Dedicated differential pairs for two independent CAN 2.0B networks; one pair configurable as safety port. |
| FRAY_TX, FRAY_RX | FlexRay transmit/receive | Single-ended or differential signaling pins supporting FlexRay v2.1 protocol at up to 10 Mbit/s. |
| NEXUS_TDI, TDO, TCK, TMS | Nexus® L2+ debug interface | Four-wire trace/debug interface compliant with IEEE-ISTO 5001 standard for real-time tracing and safety validation. |
Key Features
| Feature | Design Value |
|---|---|
| Fail-Safe System-on-Chip | Integrated FCCU, safety port, and NMI support enable ASIL-B system-level fault detection and safe state entry per ISO 26262. |
| Memory Protection | ECC on all Flash and SRAM blocks ensures bit-error correction and detection during runtime, preventing silent data corruption. |
| Multi-Protocol Timing | Programmable cross-triggering unit (CTU) synchronizes ADC sampling, PWM generation, and timer events across peripherals. |
| Bootloader Flexibility | On-chip CAN/UART bootstrap loader with Boot Assist Module (BAM) enables field firmware updates without external programming hardware. |
| Robust Clocking | Dual clock sources: main oscillator (4–40 MHz) and 16 MHz internal RC oscillator with calibration, plus FMPLL for precise frequency synthesis. |
Applications
| Electric Power Steering (EPS) | Brake-by-Wire Control Unit |
|---|---|
Use Scenario: Real-time torque assist calculation, motor phase current sensing, and CAN-based vehicle network coordination. IC Role / Device Role / Timing Role: Primary safety-critical controller executing ASIL-B software, managing eTimer-driven PWM, ADC-sampled motor currents, and dual CAN communication with steering angle sensor and vehicle bus. Use Value: Integrated FCCU and ECC memory ensure fault containment during transient electrical disturbances common in 12 V/42 V hybrid EPS systems. |
Use Scenario: Redundant pressure control, valve actuation sequencing, and diagnostic reporting in electro-hydraulic brake systems. IC Role / Device Role / Timing Role: Dual-core lockstep not used, but safety port FlexCAN and FCCU provide hardware-enforced fault response for brake command validation and fail-safe actuation. Use Value: FlexRay interface enables deterministic, time-triggered communication with other chassis controllers, meeting <100 µs latency requirements for brake intervention. |
| Active Suspension Controller | Advanced Driver Assistance Systems (ADAS) Gateway |
Use Scenario: High-speed sensor fusion (accelerometer, suspension position), real-time damping algorithm execution, and CAN/FlexRay gateway between chassis and body domains. IC Role / Device Role / Timing Role: Real-time MCU handling 10 kHz ADC sampling, eTimer-based PWM for solenoid drivers, and concurrent FlexRay (chassis) and CAN (body) messaging. Use Value: 27-channel ADC with pre-sampling and CTU triggering allows synchronized acquisition across multiple suspension corners without CPU overhead. |
Use Scenario: Protocol translation, message filtering, and secure firmware update routing between radar, camera, and vehicle CAN/FlexRay networks. IC Role / Device Role / Timing Role: Gateway processor managing 2 FlexCAN buses, 1 FlexRay link, and LINFlex interfaces while executing secure boot and cryptographic signature verification. Use Value: On-chip CAN/UART bootloader with BAM enables authenticated over-the-air (OTA) updates without exposing debug interfaces, satisfying UNECE R155 cybersecurity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive safety MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP S32K144 | ARM Cortex-M4F core, 1 MB Flash, 128 KB RAM, no FlexRay, single CAN FD instead of dual CAN 2.0B. | Targeted at mid-tier ADAS and body control; lacks FlexRay and safety port architecture required for chassis-level time-triggered networks. | Select when ARM ecosystem tooling and CAN FD bandwidth outweigh need for FlexRay or ASIL-B-certified safety port. |
| Renesas RH850/F1L | 32-bit RXv2 core, 2 MB Flash, 384 KB RAM, dual CAN FD, no FlexRay, JTAG/Nexus not supported. | Optimized for powertrain and EV battery management; higher Flash/RAM but no native FlexRay or safety port for chassis integration. | Prefer for high-memory powertrain applications where FlexRay interoperability is unnecessary and JTAG-only debug suffices. |
Compared with SPC56AP54L5CEFAR, the NXP S32K144 offers modern ARM toolchain support but omits FlexRay and safety port-critical for chassis domain compliance-while the Renesas RH850/F1L provides greater memory headroom but lacks Nexus L2+ trace needed for ISO 26262 ASIL-B validation.
Availability
SPC56AP54L5CEFAR is available at Aetrix Electronics and suitable for electric power steering, brake-by-wire, and active suspension systems requiring stable component supply under AEC-Q100 automotive qualification.
Supply support for SPC56AP54L5CEFAR 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 power devices.
The SPC56xP series targets automotive chassis and safety applications, designed specifically to meet ISO 26262 ASIL-B requirements through integrated fault collection, ECC memory, and hardware safety mechanisms.
FAQ
What is the maximum operating junction temperature for SPC56AP54L5CEFAR?
The device is qualified for ambient temperatures from –40°C to +125°C in LQFP144 package. Maximum junction temperature is calculated per JEDEC JESD51-2, with θJA = 29.5°C/W for LQFP144; under typical 1.2 W power dissipation and 85°C ambient, TJ remains within 120°C limit, ensuring reliable operation in under-hood environments.
Does SPC56AP54L5CEFAR support CAN FD?
No. The SPC56AP54L5CEFAR integrates two FlexCAN 2.0B interfaces only, compliant with ISO 11898-1:2015 Classical CAN. It does not implement CAN FD frame format, bit rate switching, or enhanced payload length. For CAN FD requirements, ST's SPC58EC or SPC58NG families are recommended alternatives.
How is the safety port implemented on this MCU?
The safety port is a dedicated FlexCAN instance configured with hardware-enforced message filtering, CRC protection, and separate interrupt vectoring. When enabled, it operates independently of the primary FlexCAN interfaces and routes messages exclusively to safety-critical software partitions, with FCCU-monitored integrity checks on received frames.
Can the internal 16 MHz RC oscillator be used as main clock source?
Yes-the 16 MHz internal RC oscillator is factory-calibrated to ±1% accuracy across temperature and voltage, and may serve as primary clock source during startup or as backup to the main crystal oscillator. It supports FMPLL locking and is fully integrated into the clock generation unit per datasheet Section 1.5.14.
SPC56AP54L5CEFAR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 144-LQFP
- Series:
- SPC56
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- e200z0h
- Core Size:
- 32-Bit Single-Core
- Speed:
- 64MHz
- Connectivity:
- CANbus, LINbus, SPI, UART/USART
- Peripherals:
- DMA, POR, PWM, WDT
- Number of I/O:
- 80
- Program Memory Size:
- 768KB (768K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 64K x 8
- RAM Size:
- 64K x 8
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 5.5V
- Data Converters:
- A/D 26x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
SPC56AP54L5CEFAR FAQ
1.How can I place an order for SPC56AP54L5CEFAR through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC56AP54L5CEFAR 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 SPC56AP54L5CEFAR reliable?
The price and inventory of SPC56AP54L5CEFAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC56AP54L5CEFAR is usually 5 days.
3.What payment methods are accepted for SPC56AP54L5CEFAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC56AP54L5CEFAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC56AP54L5CEFAR?
SPC56AP54L5CEFAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC56AP54L5CEFAR 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 SPC56AP54L5CEFAR?
For technical support, including SPC56AP54L5CEFAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC56AP54L5CEFAR requirements.
6.How does Aetrix verify that SPC56AP54L5CEFAR is sourced from the original manufacturer or authorized distributors?
All SPC56AP54L5CEFAR 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 SPC56AP54L5CEFAR meets industry standards.
7.What is the process for return or replacement of SPC56AP54L5CEFAR?
All SPC56AP54L5CEFAR units undergo pre-shipment inspection (PSI). If there is an issue with SPC56AP54L5CEFAR, 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 SPC56AP54L5CEFAR part is unused and in its original packaging.
Return procedure for SPC56AP54L5CEFAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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