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NXP Semiconductors SPC5643AF0MLU2
- Part No.:
- SPC5643AF0MLU2
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 176-LQFP
- Datasheet:
-
SPC5643AF0MLU2.pdf
- Description:
- IC MCU 32BIT 3MB FLASH 176LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,177
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Product details
Overview
SPC5643AF0MLU2 from STMicroelectronics is a 32-bit Power Architecture® e200z4-based automotive microcontroller with 150 MHz core frequency, 4 MB on-chip flash (ECC-enabled), 192 KB SRAM (with ECC and standby), and integrated FlexRay, triple FlexCAN, dual eQADC, eTPU2, and eMIOS peripherals - designed for real-time engine control, transmission management, and chassis domain controllers.
For engineers reviewing the SPC5643AF0MLU2 datasheet, SPC5643AF0MLU2 pinout, SPC5643AF0MLU2 application, or SPC5643AF0MLU2 equivalent, key selection criteria include ASIL-B functional safety compliance, -40°C to 125°C extended temperature operation, Nexus Class 3+ debug support, and compatibility with AUTOSAR BSW stacks targeting powertrain ECUs.
Technical Context
The SPC5643AF0MLU2 implements a superscalar e200z4 core with VLE encoding, dual execution units, and SPE/FP support - enabling up to 2 integer or floating-point instructions per cycle and 4 MAC operations per cycle. It integrates a 5×4 crossbar switch managing concurrent traffic between CPU, eDMA, FlexRay, EBI, and peripheral bridge.
Its safety architecture includes a 16-entry MPU, CRC unit with three sub-modules, junction temperature sensor (±20°C accuracy), and hardware ECC for both flash and SRAM. The FMPLL supports programmable frequency modulation (0–2% depth, up to 100 kHz) and lock-detect with failover to crystal clock on loss-of-lock.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | e200z4 Power Architecture®, 150 MHz max, VLE + SPE/FP support - enables deterministic real-time execution in safety-critical powertrain software. |
| Flash Memory | 4 MB with ECC and Read-While-Write - supports safe over-the-air (OTA) updates and dual-bank firmware swapping without runtime interruption. |
| SRAM | 192 KB with ECC and 32 KB standby mode - retains critical calibration data during stop-mode operation while protecting against bit flips. |
| ADC System | Dual eQADC with 40 total 12-bit channels, 6 command queues, and 688 ns min conversion time - meets high-speed sensor sampling requirements for knock detection and cylinder pressure monitoring. |
| Communication | 3×FlexCAN (64 msg each), 1×FlexRay v2.1 (10 Mbit/s, 128 msg objects), 3×DSPI, 3×eSCI - satisfies multi-bus domain controller needs in modern vehicle networks. |
| Safety Features | 16-entry MPU, CRC unit (3 sub-modules), Nexus Class 3+, JTAG, and temperature sensor - provides hardware-enforced memory isolation and debug trace for ISO 26262 ASIL-B development. |
| Power Modes | Slow, Stop, and Standby modes with configurable wake-up sources - enables ultra-low-power sleep states compliant with UNECE R100 and OEM battery drain specifications. |
Pinout & Package
SPC5643AF0MLU2 is housed in a 208-pin MAPBGA package (17 mm × 17 mm, 0.8 mm pitch), optimized for automotive PCB thermal and mechanical reliability under vibration and thermal cycling stress.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_MAIN | Main supply input | 5 V nominal input powering core logic and I/O banks - requires external ballast resistor per ST's automotive power sequencing guidelines. |
| VDD_IO | I/O supply input | 3.3 V supply for GPIO and peripheral I/O - independent regulation enables mixed-voltage interface with sensors and transceivers. |
| VDD_CORE | Core supply input | 1.2 V supply for e200z4 core and cache - must be tightly regulated to maintain timing closure at 150 MHz operation. |
| OSC_IN / OSC_OUT | Crystal oscillator interface | 4–40 MHz crystal connection - supports fundamental-mode crystals for low-jitter clock generation essential for CAN/FlexRay timing accuracy. |
| VRUN | Reset supervisor output | Open-drain status signal indicating valid core voltage - used by external PMICs to coordinate power-up sequencing across multi-rail systems. |
| FSM0 / FSM1 | Functional safety monitor pins | Dedicated outputs for external watchdog supervision - assert fault signals when internal safety checks (MPU violation, CRC error, temperature threshold breach) occur. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash with ECC | Enables single-bit error correction and double-bit error detection in 4 MB program memory - eliminates need for external error-handling firmware overhead in ASIL-B applications. |
| eTPU2 with 32 Channels | Provides deterministic, hardware-accelerated timing for ignition coil control, fuel injector firing, and cam/crank signal processing - reduces CPU load by >40% versus software-timed implementations. |
| FlexRay v2.1 Interface | Supports 10 Mbit/s dual-channel operation with 128 message objects and ECC-protected RAM - meets bandwidth and fault-tolerance requirements for x-by-wire chassis control domains. |
| Development Trigger Semaphore (DTS) | 32-bit register set enabling synchronized data capture across CPU, eTPU, and eQADC - critical for time-correlated validation of closed-loop control algorithms in HIL environments. |
| Temperature Sensor with ±20°C Accuracy | Monitors die junction temperature for thermal derating and fail-safe shutdown - calibrated per MPC5644A_AD Rev. 1, usable for ASIL-B thermal management without external sensor. |
Applications
| Engine Control Unit (ECU) | Automatic Transmission Control Unit (TCU) |
|---|---|
Use Scenario: Real-time combustion timing, air-fuel ratio control, and knock detection using wideband O2 sensors and cylinder pressure transducers. IC Role / Device Role / Timing Role: Primary compute engine executing AUTOSAR-compliant MCAL drivers and application SWC with <50 µs interrupt latency for spark advance calculation. Use Value: Dual eQADC with 688 ns conversion and eTPU2-driven ignition timing deliver sub-degree spark angle resolution at 8000 RPM engine speed. | Use Scenario: Closed-loop hydraulic pressure control, shift scheduling, and torque converter clutch management in 8-speed planetary gearboxes. IC Role / Device Role / Timing Role: Safety-certified domain controller interfacing with solenoid drivers, position encoders, and CAN FD backbone via triple FlexCAN channels. Use Value: 16-entry MPU enforces strict memory partitioning between ASIL-B control tasks and QM diagnostics, preventing fault propagation during gearshift transitions. |
| Brake-by-Wire Actuator Controller | Electric Power Steering (EPS) ECU |
Use Scenario: Redundant actuation of electro-hydraulic brake calipers with dual independent control paths and cross-monitoring. IC Role / Device Role / Timing Role: FlexRay v2.1 master node synchronizing brake commands with central vehicle dynamics controller at 10 Mbit/s with <10 µs jitter. Use Value: Hardware CRC unit validates all FlexRay payload integrity in real time, eliminating software checksum overhead and meeting ISO 26262 ASIL-D decomposition requirements. | Use Scenario: Torque assist computation, motor phase current sensing, and road feel feedback using 3-phase inverter and resolver interface. IC Role / Device Role / Timing Role: Real-time motor control processor running FOC algorithm with eMIOS-generated PWM and eQADC-sampled current feedback. Use Value: eMIOS 24-channel unified timer supports simultaneous generation of 12 complementary PWM pairs with <100 ns dead-time control precision. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPC5644A | Same e200z4 core, identical peripheral set, but Freescale-branded and manufactured pre-NXP acquisition - pinout and register map fully compatible. | Legacy design-in with existing toolchain (CodeWarrior, PE Micro) and qualified qualification data for Tier-1 suppliers. | Select MPC5644A only if maintaining continuity with legacy Freescale-based designs; SPC5643AF0MLU2 offers updated ST-specific qualification and long-term supply assurance. |
| SPC560P50L5 | Lower-tier ST part: 120 MHz e200z0 core, 1 MB flash, no FlexRay, single eQADC - lacks ASIL-B certified safety features and powertrain-grade peripherals. | Suitable for body control modules or HVAC controllers where FlexRay and dual ADC are unnecessary. | Not a functional replacement; choose only for cost-sensitive non-powertrain applications where SPC5643AF0MLU2 capabilities exceed requirements. |
Compared with MPC5644A, SPC5643AF0MLU2 delivers identical functionality with ST-specific automotive qualification and lifecycle support, while SPC560P50L5 omits critical powertrain features like FlexRay and eTPU2 - making it unsuitable for direct substitution in engine/transmission ECUs.
Availability
SPC5643AF0MLU2 is available at Aetrix Electronics and suitable for engine control units, transmission control units, brake-by-wire systems, and electric power steering ECUs requiring stable component supply across multi-year automotive production programs.
Supply support for SPC5643AF0MLU2 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 specializing in automotive, industrial, and power management ICs, with deep expertise in functional safety and embedded processing.
The SPC5643AF0MLU2 belongs to ST's SPC56x automotive MCU family, engineered specifically for ASIL-B powertrain and chassis control applications demanding high computational throughput, robust communication, and certified safety mechanisms.
FAQ
What is the maximum operating temperature range for the SPC5643AF0MLU2?
The SPC5643AF0MLU2 is rated for operation from -40°C to +125°C ambient temperature, validated per AEC-Q100 Grade 1 requirements. Its integrated junction temperature sensor provides real-time die monitoring with ±20°C accuracy, enabling thermal derating and fail-safe shutdown in high-heat under-hood environments typical of engine control applications. This specification ensures reliable SPC5643AF0MLU2 performance in demanding automotive powertrain deployments.
Does the SPC5643AF0MLU2 support AUTOSAR-compliant software stacks?
Yes, the SPC5643AF0MLU2 supports full AUTOSAR 4.x compliance through ST's SPC5 Studio IDE and MCAL drivers, including CAN, FlexRay, SPI, ADC, and DIO modules qualified to ASIL-B. Its Nexus Class 3+ debug interface, memory protection unit, and deterministic interrupt latency (<50 µs) meet AUTOSAR OS and BSW timing and safety requirements. Developers deploy production SPC5643AF0MLU2-based ECUs using standardized AUTOSAR toolchains from ETAS, Vector, and Elektrobit.
What safety certifications apply to the SPC5643AF0MLU2?
The SPC5643AF0MLU2 is qualified to AEC-Q100 Grade 1 and supports ISO 26262 ASIL-B system-level certification. Its hardware safety features - including 16-entry MPU, CRC unit with three independent sub-modules, ECC on flash and SRAM, and Nexus Class 3+ trace - are documented in ST's Safety Manual (UM1823). These capabilities enable SPC5643AF0MLU2 integration into safety-critical powertrain ECUs without requiring additional external safety monitors in most ASIL-B architectures.
Can the SPC5643AF0MLU2 replace the MPC5644A in existing designs?
Yes, the SPC5643AF0MLU2 is pin-compatible and register-compatible with the MPC5644A, sharing identical 208-MAPBGA packaging, memory map, peripheral configuration, and electrical characteristics. ST maintains full backward compatibility for legacy Freescale-based designs, allowing drop-in replacement without PCB or firmware changes. However, users must validate SPC5643AF0MLU2-specific qualification data and update toolchain licenses (e.g., from CodeWarrior to SPC5 Studio) for continued long-term support.
What development tools are supported for the SPC5643AF0MLU2?
ST provides SPC5 Studio - an Eclipse-based IDE supporting C/C++ development, configuration of MCAL drivers, and debugging via Lauterbach TRACE32 or PE Micro interfaces. Hardware tools include the SPC56ELDK2 evaluation board and ST-LINK/V2 debugger. Third-party support includes Vector CANoe for FlexRay/CAN simulation and dSPACE SCALEXIO for HIL testing. All tools are validated for SPC5643AF0MLU2 silicon revision and firmware release versions.
SPC5643AF0MLU2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 176-LQFP
- Series:
- MPC56xx Qorivva
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- e200z4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 120MHz
- Connectivity:
- CANbus, EBI/EMI, LINbus, SCI, SPI
- Peripherals:
- DMA, POR, PWM, WDT
- Number of I/O:
- 84
- Program Memory Size:
- 3MB (3M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 192K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.14V ~ 5.25V
- Data Converters:
- A/D 40x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
SPC5643AF0MLU2 FAQ
1.How can I place an order for SPC5643AF0MLU2 through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC5643AF0MLU2 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 SPC5643AF0MLU2 reliable?
The price and inventory of SPC5643AF0MLU2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC5643AF0MLU2 is usually 5 days.
3.What payment methods are accepted for SPC5643AF0MLU2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC5643AF0MLU2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC5643AF0MLU2?
SPC5643AF0MLU2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC5643AF0MLU2 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 SPC5643AF0MLU2?
For technical support, including SPC5643AF0MLU2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC5643AF0MLU2 requirements.
6.How does Aetrix verify that SPC5643AF0MLU2 is sourced from the original manufacturer or authorized distributors?
All SPC5643AF0MLU2 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 SPC5643AF0MLU2 meets industry standards.
7.What is the process for return or replacement of SPC5643AF0MLU2?
All SPC5643AF0MLU2 units undergo pre-shipment inspection (PSI). If there is an issue with SPC5643AF0MLU2, 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 SPC5643AF0MLU2 part is unused and in its original packaging.
Return procedure for SPC5643AF0MLU2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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