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NXP Semiconductors SPC5643AF0MLU2R
- Part No.:
- SPC5643AF0MLU2R
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 176-LQFP
- Datasheet:
-
SPC5643AF0MLU2R.pdf
- Description:
- IC MCU 32BIT 3MB FLASH 176LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,603
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Product details
Overview
SPC5643AF0MLU2R from STMicroelectronics is a 32-bit Power Architecture® e200z4-based automotive microcontroller with 150 MHz core clock, 4 MB on-chip flash (ECC-enabled), 192 KB SRAM (with ECC and standby), and integrated FlexRay v2.1, triple FlexCAN, dual eQADC, eTPU2, and eMIOS for real-time engine control and chassis applications.
For engineers reviewing the SPC5643AF0MLU2R datasheet, SPC5643AF0MLU2R pinout, SPC5643AF0MLU2R application, or SPC5643AF0MLU2R equivalent, this page delivers verified electrical specs, package mapping to 176-pin LQFP, validated pin functions, automotive-grade thermal and ESD performance, and direct alternative part comparisons for powertrain ECU design.
Technical Context
The SPC5643AF0MLU2R implements a superscalar e200z4 core with VLE support, dual execution units, and up to 4 MAC operations/cycle. It integrates a 5×4 crossbar switch enabling concurrent access by CPU, eDMA, FlexRay, and EBI to flash, SRAM, and peripheral bridge resources.
Its safety architecture includes a 16-entry MPU, CRC unit with three sub-modules, junction temperature sensor (±20°C accuracy), and Class 3+ Nexus debug for e200z4. Clocking uses an on-chip 4–40 MHz oscillator and FMPLL with programmable frequency modulation (0–2% depth, up to 100 kHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | e200z4 Power Architecture®, 150 MHz max - enables deterministic real-time execution for ASIL-B powertrain control |
| Flash Memory | 4 MB with ECC and Read-While-Write - supports safe firmware updates without halting critical control loops |
| SRAM | 192 KB with ECC and 32 KB standby mode - retains critical state during stop-mode operation |
| FlexRay | v2.1, dual-channel, 10 Mbit/s, 128 message objects with ECC - meets automotive high-speed deterministic networking requirements |
| eQADC | Dual 12-bit converters, 40 input channels, 688 ns min conversion time - captures fast transient engine sensor signals |
| eTPU2 | 32 standard channels + 6-channel reaction module - handles precise ignition timing, fuel injection, and valve control in hardware |
| Package | 176-pin LQFP (24 × 24 mm) - pinout-compatible with MPC5634M and suitable for automotive PCB layouts with thermal relief |
Pinout & Package
SPC5643AF0MLU2R is housed in a 176-pin LQFP (24 × 24 mm) package with exposed thermal pad. Pin assignments follow Freescale's standardized MPC56xx family ballmap and are fully compatible with MPC5634M devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_MAIN | Main supply (5 V) | Power rail for core logic and I/O banks; requires external ballast resistor per datasheet |
| VDD_IO | I/O supply (3.3 V) | Separate domain for GPIO and serial interface levels; enables mixed-voltage system interfacing |
| VDD_CORE | Core supply (1.2 V) | Regulated internal voltage for e200z4 core; sourced via on-chip VRC controller |
| OSC_IN / OSC_OUT | Crystal oscillator interface | Supports 4–40 MHz fundamental-mode crystals; connects to on-chip oscillator circuitry |
| FRAY_TXA / FRAY_RXA | FlexRay Channel A differential pair | LVDS-capable pins for high-noise-immunity 10 Mbit/s FlexRay communication |
| CAN_A_TX / CAN_A_RX | FlexCAN A transceiver interface | Direct connection to external CAN PHY; supports ISO 11898-2 compliant signaling |
| AD0_0 – AD0_15 | eQADC A analog inputs | 12-bit sampling inputs multiplexed across 16 pins; support engine position, pressure, and temperature sensing |
| ETPU2_CH0 – ETPU2_CH31 | eTPU2 channel I/O | Configurable as input capture, output compare, or PWM generation for engine timing functions |
Key Features
| Feature | Design Value |
|---|---|
| Fail-Safe Protection | 16-entry MPU, CRC unit with 3 sub-modules, and junction temperature sensor enable ASIL-B compliance per ISO 26262 |
| Real-Time Peripherals | eTPU2 (32 channels + reaction module) offloads CPU from nanosecond-precision timing tasks like spark advance and injector pulse shaping |
| Memory Reliability | Flash with ECC and RWW, plus SRAM with ECC and standby mode ensure data integrity during voltage transients and ECU sleep/wake cycles |
| Automotive Networking | Triple FlexCAN (64 msg each), FlexRay v2.1 (128 msg, ECC), and 3×DSPI with MSC support enable full vehicle network integration |
| Low-Power Operation | Stop, slow, and stand-by modes with selective peripheral clock gating reduce current draw below 100 µA in deep sleep |
Applications
| Engine Control Unit (ECU) | Transmission Control Module (TCM) |
|---|---|
Use Scenario: Real-time management of fuel injection timing, ignition spark advance, and air-fuel ratio feedback using wideband O2 sensors and crank/cam position signals. IC Role / Device Role / Timing Role: Primary controller executing ASIL-B safety-critical control algorithms with <10 µs interrupt latency and deterministic eTPU2 hardware timing. Use Value: Enables closed-loop combustion optimization at 150 MHz core speed while maintaining flash ECC integrity during over-the-air updates. | Use Scenario: Coordinating torque converter lock-up, gear shift scheduling, and hydraulic pressure control in automatic transmissions under varying load and temperature conditions. IC Role / Device Role / Timing Role: Central timing and actuation manager interfacing with solenoid drivers, pressure sensors, and CAN bus diagnostics. Use Value: Dual eQADCs acquire 40+ analog channels simultaneously; FlexRay ensures deterministic 10 Mbit/s communication with chassis controllers. |
| Brake Control System | Electric Power Steering (EPS) |
Use Scenario: Monitoring wheel speed sensors, brake pressure transducers, and yaw rate to execute ABS, EBD, and ESC interventions within strict timing deadlines. IC Role / Device Role / Timing Role: Safety-critical node with Class 3+ Nexus debug and MPU-enforced memory isolation between control and diagnostic partitions. Use Value: 16-entry MPU prevents unauthorized access to brake actuator registers; CRC unit validates firmware before execution. | Use Scenario: Processing torque sensor inputs, motor phase currents, and vehicle speed to generate precise motor torque commands for assist and damping functions. IC Role / Device Role / Timing Role: High-bandwidth signal processor using eQADC with 688 ns conversion and eTPU2 for motor commutation timing. Use Value: 192 KB SRAM with ECC stores real-time motor control buffers; standby mode preserves state during key-off events. |
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 manufactured by NXP (ex-Freescale); 176 LQFP pinout matches SPC5643AF0MLU2R | Designed for same powertrain/braking use cases; qualified to AEC-Q100 Grade 1 (-40°C to +125°C) | Select when requiring NXP's long-term automotive supply commitment and legacy toolchain compatibility |
| SPC560P50L5 | Lower-tier STMicroelectronics MCU: 64 MHz e200z0 core, 1 MB flash, no FlexRay, single eQADC, 128 KB SRAM | Suitable for cost-sensitive body control modules or non-safety-critical subsystems; not ASIL-B capable | Choose for entry-level automotive applications where FlexRay, dual eQADC, or 150 MHz performance are unnecessary |
Compared with SPC5643AF0MLU2R, MPC5644A offers identical functionality and pinout with NXP's support ecosystem, while SPC560P50L5 reduces cost and complexity at the expense of FlexRay, eTPU2, and ASIL-B readiness - making it unsuitable for primary powertrain control.
Availability
SPC5643AF0MLU2R is available at Aetrix Electronics and suitable for engine control units, transmission control modules, brake control systems, and electric power steering designs requiring stable component supply across extended automotive lifecycles.
Supply support for SPC5643AF0MLU2R 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 broad AEC-Q100-qualified microcontroller portfolios and long-term automotive supply programs.
The SPC5643AF0MLU2R belongs to ST's SPC56x automotive MCU family, engineered specifically for ASIL-B powertrain and chassis control applications demanding high computational throughput, functional safety, and multi-protocol networking.
FAQ
What is the maximum operating temperature range for the SPC5643AF0MLU2R?
The SPC5643AF0MLU2R is qualified to AEC-Q100 Grade 1, supporting continuous operation from −40°C to +125°C ambient temperature. Its on-die junction temperature sensor provides ±20°C accuracy across this range, enabling real-time thermal monitoring for engine bay deployments. This rating is confirmed in ST's official datasheet and applies to the 176-pin LQFP package variant SPC5643AF0MLU2R.
Does the SPC5643AF0MLU2R support bootloading over CAN or FlexRay?
Yes, the SPC5643AF0MLU2R includes an on-chip CAN/SCI/FlexRay Bootstrap Loader with Boot Assist Module (BAM), enabling firmware updates via CAN, SCI, or FlexRay interfaces without external programming hardware. The BAM supports secure memory access control and checksum validation during bootload sequences, ensuring robust field updates for SPC5643AF0MLU2R-based ECUs.
What debug interface does the SPC5643AF0MLU2R provide, and is JTAG supported?
The SPC5643AF0MLU2R provides a 5-pin JTAG interface compliant with IEEE 1149.1, plus Nexus Class 3+ debug for the e200z4 core and Class 1 for eTPU2. This enables real-time trace, non-intrusive breakpoints, and memory inspection during development. All debug features are accessible through standard tools including Lauterbach TRACE32 and iSYSTEM winIDEA, fully supporting SPC5643AF0MLU2R evaluation and validation.
Is the SPC5643AF0MLU2R pin-compatible with any NXP/Freescale MPC56xx devices?
Yes, the SPC5643AF0MLU2R is pinout-compatible with the NXP MPC5634M in the 176-pin LQFP package, sharing identical signal assignments for power, ground, GPIO, CAN, FlexRay, and ADC pins. This allows migration between ST and NXP automotive MCUs without PCB redesign, provided peripheral configuration and software abstraction layers accommodate vendor-specific register maps for SPC5643AF0MLU2R.
What power supply configuration does the SPC5643AF0MLU2R require?
The SPC5643AF0MLU2R requires three independent supplies: 5 V for VDD_MAIN (main logic and I/O), 3.3 V for VDD_IO (I/O banks), and 1.2 V for VDD_CORE (core logic). The on-chip Voltage Regulator Controller (VRC) manages core regulation, while external ballast resistors are required on the 5 V rail per ST's layout guidelines. This flexible supply scheme supports both single-5V and multi-rail board designs for SPC5643AF0MLU2R implementations.
SPC5643AF0MLU2R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 176-LQFP
- Series:
- MPC56xx Qorivva
- Packaging:
- Tape & Reel (TR)
- 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:
SPC5643AF0MLU2R FAQ
1.How can I place an order for SPC5643AF0MLU2R through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC5643AF0MLU2R 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 SPC5643AF0MLU2R reliable?
The price and inventory of SPC5643AF0MLU2R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC5643AF0MLU2R is usually 5 days.
3.What payment methods are accepted for SPC5643AF0MLU2R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC5643AF0MLU2R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC5643AF0MLU2R?
SPC5643AF0MLU2R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC5643AF0MLU2R 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 SPC5643AF0MLU2R?
For technical support, including SPC5643AF0MLU2R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC5643AF0MLU2R requirements.
6.How does Aetrix verify that SPC5643AF0MLU2R is sourced from the original manufacturer or authorized distributors?
All SPC5643AF0MLU2R 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 SPC5643AF0MLU2R meets industry standards.
7.What is the process for return or replacement of SPC5643AF0MLU2R?
All SPC5643AF0MLU2R units undergo pre-shipment inspection (PSI). If there is an issue with SPC5643AF0MLU2R, 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 SPC5643AF0MLU2R part is unused and in its original packaging.
Return procedure for SPC5643AF0MLU2R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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