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STMicroelectronics SPC56AP54L5BEFAY
- Part No.:
- SPC56AP54L5BEFAY
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
SPC56AP54L5BEFAY.pdf
- Description:
- IC MCU 32BIT 768KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,588
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Product details
Overview
SPC56AP54L5BEFAY 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 (dual-channel, 10 Mbit/s), 2 LINFlex modules, 5 DSPI controllers, and a 10-bit ADC with 27 channels and <1 µs conversion time. Used in electronic brake control units (EBCU) and airbag control modules requiring ASIL-B compliance.
For engineers reviewing the SPC56AP54L5BEFAY datasheet, SPC56AP54L5BEFAY pinout, SPC56AP54L5BEFAY application, or SPC56AP54L5BEFAY equivalent, key selection criteria include dual-CAN/FlexRay coexistence, on-chip safety features (FCCU, SWT with pseudo-random servicing, safety port), ECC coverage across Flash/SRAM, and -40 to 125 °C operation in LQFP144 package.
Technical Context
The device implements a single-issue e200z0h CPU core running at 64 MHz with Variable Length Encoding (VLE) support, coupled with a crossbar switch (XBAR) for concurrent peripheral access. Memory subsystem includes ECC-protected Flash with integrated erase/program controller and SRAM with lockstep-capable error detection.
Safety architecture centers on the Fault Collection and Control Unit (FCCU), non-maskable interrupts per core, register protection scheme, and dedicated Safety Port derived from FlexCAN-configurable as third CAN interface when not used for safety-critical messaging. Nexus® L2+ debug interface enables real-time trace and fault analysis in automotive validation environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | e200z0h @ 64 MHz, Power Architecture® embedded category, VLE instruction set for code density optimization |
| Flash Memory | 1024 KB code Flash + 64 KB data Flash (EEPROM emulation), with ECC and hardware erase/program controller |
| SRAM | 80 KB on-chip SRAM with full ECC protection, supporting lockstep or split-mode operation |
| ADC | 10-bit SAR ADC with 27 input channels, <1 µs total conversion time including sampling, programmable CTU for synchronized triggering |
| Communication | 2 × FlexCAN 2.0B (32 MBs each), 1 × FlexRay V2.1 (64 MBs, up to 10 Mbit/s), 2 × LINFlex, 5 × DSPI with auto chip select |
| Safety Features | FCCU, SWT with pseudo-random servicing sequence, safety port, system-level register protection, ECC on all critical memory |
| Operating Temp | -40 °C to +125 °C ambient, qualified per AEC-Q100 Grade 0 for under-hood automotive applications |
Pinout & Package
LQFP144 (20 × 20 mm, 0.5 mm pitch) package with 80 GPIO + 26 GPI, power supply segmentation (VDD, VDDA, VDDIO), and dedicated safety/debug pins (Nexus L2+, JTAG, FCCU alert outputs).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDIO | Power supply domains | Separate 3.3 V or 5 V supplies for core, analog, and I/O-enabling mixed-voltage system integration and noise isolation |
| RESET | Asynchronous reset input | Level-sensitive active-low reset with internal pull-up; supports external brown-out monitoring and controlled power-up sequencing |
| NEXUS_TDI/TDO/TMS/TCK | Nexus® L2+ debug interface | Real-time trace, instruction execution monitoring, and fault injection capability compliant with IEEE 1149.1 and Nexus Class 3 |
| CAN0_TX/CAN0_RX CAN1_TX/CAN1_RX |
Dual FlexCAN physical layer I/O | Direct connection to external CAN transceivers; supports bit rates up to 1 Mbit/s with programmable timing and loopback modes |
| FRAY_CHA_TX/FRAY_CHA_RX FRAY_CHB_TX/FRAY_CHB_RX |
FlexRay V2.1 channel A/B I/O | Differential signaling pairs supporting dual-channel operation at up to 10 Mbit/s; configurable for static/dynamic segment arbitration |
Key Features
| Feature | Design Value |
|---|---|
| Fail-safe SoC architecture | FCCU collects faults from CPU, memory, peripherals, and clock domains; triggers safe state entry with configurable response (reset, NMI, interrupt) |
| Hardware CRC acceleration | Two independent CRC units supporting CRC8, CRC16-CCITT, and CRC32 with three context registers for concurrent checksum generation |
| Programmable CTU | Cross-triggering unit synchronizes ADC sampling, eTimer capture, and PWM events without CPU intervention-reducing jitter in closed-loop control |
| Bootloader & BAM | On-chip CAN/UART bootstrap loader with Boot Assist Module enabling field firmware updates via standard automotive diagnostic protocols (UDS over CAN) |
| eDMA with 16 channels | Enhanced DMA controller with scatter-gather support, priority arbitration, and transfer request sources from all major peripherals (ADC, DSPI, FlexCAN, FlexRay) |
Applications
| Electronic Brake Control Unit (EBCU) | Airbag Deployment Controller |
|---|---|
Use Scenario: Real-time pressure modulation and wheel-speed-based ABS/EBD logic execution under harsh EMI conditions. IC Role / Device Role / Timing Role: Primary safety-critical controller managing CAN communication with ESC module, ADC sampling of brake pressure sensors, and PWM-driven solenoid valve actuation. Use Value: Dual FlexCAN interfaces enable redundant communication paths; ECC-protected memory ensures integrity of braking algorithms; FCCU detects and isolates transient faults during deceleration events. |
Use Scenario: Multi-stage crash sensing and pyrotechnic trigger sequencing within <10 ms of impact detection. IC Role / Device Role / Timing Role: Central sensor fusion node aggregating accelerometer, seat occupancy, and seatbelt pretensioner signals; executes deterministic deployment logic with sub-millisecond latency. Use Value: 10-bit ADC with 27 channels supports simultaneous analog inputs from multiple crash sensors; eTimer quadrature decode handles rotation-based occupant position tracking; safety port provides isolated CAN channel for airbag status reporting. |
| Electric Power Steering (EPS) ECU | Advanced Chassis Domain Controller |
Use Scenario: Torque assist calculation and motor current control in steer-by-wire architectures with torque feedback and road feel simulation. IC Role / Device Role / Timing Role: High-integrity motor control processor interfacing with 3-phase inverter gate drivers, resolver-to-digital converter, and vehicle speed/CAN bus. Use Value: eTimer units provide precise PWM generation and quadrature decoding for resolver feedback; FlexRay interface enables deterministic high-bandwidth communication with ADAS domain controllers. |
Use Scenario: Consolidated chassis management integrating suspension damping, steering angle correction, and yaw stability functions across multiple ECUs. IC Role / Device Role / Timing Role: Domain master coordinating data exchange between FlexRay backbone and CAN subnets; performs sensor fusion and centralized decision-making for vehicle dynamics. Use Value: Dual FlexCAN + FlexRay + LINFlex support heterogeneous network topology; 80 KB ECC SRAM accommodates real-time OS and safety middleware stacks; Nexus L2+ enables SIL-2 toolchain certification evidence collection. |
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, 512 KB Flash, 128 KB RAM, no FlexRay, single CAN FD | Targeted at mid-tier body electronics and gateway applications-not certified for ASIL-D or FlexRay-based chassis control | Select when ARM ecosystem compatibility, CAN FD bandwidth, or lower cost outweighs need for FlexRay or dual-CAN redundancy |
| Renesas RH850/F1L | 32-bit RXv2 core @ 120 MHz, 2 MB Flash, 384 KB RAM, dual CAN FD, no FlexRay, ISO 26262 ASIL-D ready | Optimized for high-integrity powertrain and ADAS domains; lacks FlexRay but offers higher Flash/RAM and stronger ASIL-D toolchain support | Select for ASIL-D functional safety requirements where FlexRay is not mandated and larger memory footprint is needed for complex control algorithms |
Compared with S32K144 and RH850/F1L, the SPC56AP54L5BEFAY uniquely balances FlexRay + dual CAN 2.0B + safety port in a single AEC-Q100 Grade 0 package-making it irreplaceable for legacy and hybrid automotive chassis networks requiring deterministic time-triggered communication.
Availability
SPC56AP54L5BEFAY is available at Aetrix Electronics and suitable for electronic brake control units, airbag deployment systems, and electric power steering ECUs requiring stable component supply across extended automotive production lifecycles.
Supply support for SPC56AP54L5BEFAY 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 silicon for industrial, automotive, and consumer markets.
The SPC56xP series targets automotive chassis and safety applications, delivering ASIL-B capable MCUs with integrated FlexRay, dual CAN, and hardware safety mechanisms aligned with ISO 26262 requirements.
FAQ
What is the maximum operating junction temperature for SPC56AP54L5BEFAY?
The device is rated for ambient temperatures from –40 °C to +125 °C and supports a maximum junction temperature of 150 °C under specified thermal conditions. Thermal resistance values (θJA = 28.5 °C/W for LQFP144) and derating curves are provided in Section 3.5 of the datasheet, with mandatory heatsinking required above 105 °C ambient in high-power configurations.
Does SPC56AP54L5BEFAY support CAN FD or only classical CAN 2.0B?
SPC56AP54L5BEFAY implements two FlexCAN 2.0B interfaces only-no CAN FD support. Each interface supports up to 32 message buffers, bit rates up to 1 Mbit/s, and hardware mailbox filtering. The safety port is a dedicated FlexCAN instance usable as a third CAN channel when not configured for safety-critical messaging.
How is the 64 KB EEPROM emulation implemented in Flash memory?
The 64 KB data flash region uses wear-leveling algorithms and ECC protection to emulate EEPROM functionality. It supports byte-write and block-erase operations via dedicated firmware libraries (SPC5 Studio SPC56APxx HAL), with guaranteed endurance of 100,000 write/erase cycles and data retention of 10 years at 125 °C per JEDEC JESD22-A117.
Is Nexus® L2+ debug interface enabled by default, and what security restrictions apply?
Nexus L2+ is enabled at power-on reset and remains active unless disabled via the Debug Security Register (DSR). Access requires valid Nexus authentication key; unauthorized attempts trigger FCCU fault logging and optional safe mode entry. Trace buffer size is 4 KB, supporting instruction trace, data trace, and event-triggered capture per Nexus Class 3 specification.
SPC56AP54L5BEFAY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 144-LQFP
- Series:
- SPC56
- Packaging:
- Tray
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
SPC56AP54L5BEFAY FAQ
1.How can I place an order for SPC56AP54L5BEFAY through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC56AP54L5BEFAY 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 SPC56AP54L5BEFAY reliable?
The price and inventory of SPC56AP54L5BEFAY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC56AP54L5BEFAY is usually 5 days.
3.What payment methods are accepted for SPC56AP54L5BEFAY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC56AP54L5BEFAY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC56AP54L5BEFAY?
SPC56AP54L5BEFAY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC56AP54L5BEFAY 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 SPC56AP54L5BEFAY?
For technical support, including SPC56AP54L5BEFAY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC56AP54L5BEFAY requirements.
6.How does Aetrix verify that SPC56AP54L5BEFAY is sourced from the original manufacturer or authorized distributors?
All SPC56AP54L5BEFAY 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 SPC56AP54L5BEFAY meets industry standards.
7.What is the process for return or replacement of SPC56AP54L5BEFAY?
All SPC56AP54L5BEFAY units undergo pre-shipment inspection (PSI). If there is an issue with SPC56AP54L5BEFAY, 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 SPC56AP54L5BEFAY part is unused and in its original packaging.
Return procedure for SPC56AP54L5BEFAY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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