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NXP Semiconductors SPC5643LFF2MLQ1R
- Part No.:
- SPC5643LFF2MLQ1R
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
SPC5643LFF2MLQ1R.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,874
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Product details
Overview
SPC5643LFF2MLQ1R from NXP Semiconductors is a dual-core automotive microcontroller built on Power Architecture® e200z4d cores operating up to 120 MHz, featuring 1 MB flash with ECC, 128 KB SRAM with ECC, and SIL3/ASIL-D safety architecture including LockStep mode, FCCU, and replicated watchdogs. It targets electric power steering (EPS), airbag control, and EHPS systems requiring functional safety compliance.
For engineers reviewing the SPC5643LFF2MLQ1R datasheet, SPC5643LFF2MLQ1R pinout, SPC5643LFF2MLQ1R application, or SPC5643LFF2MLQ1R equivalent, key selection criteria include dual-core lockstep operation, FlexRay v2.1 support (2 channels, 10 Mbit/s), dual FlexCAN 2.0B interfaces, and integrated junction temperature sensing with redundancy.
Technical Context
The SPC5643LFF2MLQ1R implements two e200z4d cores in either lockstep (for ASIL-D fault detection) or decoupled parallel mode (for high-performance computation), each with 4 KB instruction cache, MMU, VLE support, and SPE for signal processing. Its memory subsystem includes ECC-protected 1 MB flash and 128 KB SRAM, both supporting RWW for EEPROM emulation.
Safety is enforced via Sphere of Replication (SoR) covering CPU, eDMA, crossbar, and peripherals; Fault Collection and Control Unit (FCCU); Redundancy Control and Checker Unit (RCCU); boot-time MBIST/LBIST; and replicated temperature sensors and watchdogs - all aligned to ISO 26262 requirements for ASIL-D systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | e200z4d dual core, Power Architecture®, Harvard bus, 5-stage pipeline, VLE & SPE support |
| Max Core Frequency | 120 MHz with ±2% FMPLL modulation - enables deterministic real-time execution in safety-critical loops |
| Flash Memory | 1 MB with ECC, RWW capability - supports safe over-the-air updates and EEPROM emulation without external memory |
| SRAM | 128 KB with ECC - provides protected working memory for ASIL-D runtime data and stack operations |
| Safety Certification | SIL3 / ASIL-D compliant with LockStep mode, FCCU, RCCU, MBIST/LBIST, and replicated peripherals |
| Communication Interfaces | 2× FlexCAN 2.0B (32 msg objects), 2× LINFlexD, 3× DSPI, 1× FlexRay v2.1 (2 ch, 64 buffers, 10 Mbit/s) |
| Analog Peripherals | 2× 12-bit ADC (16 ch total), CTU for synchronized sampling, SWG (32-point sine wave generator) |
| Supply & Temp Range | Single 3.0–3.6 V supply; ambient –40 °C to +125 °C; junction –40 °C to +150 °C |
Pinout & Package
SPC5643LFF2MLQ1R is packaged in a 257-pin MAPBGA (14 mm × 14 mm × 0.8 mm) with 0.8 mm ball pitch. This package supports full I/O access including eTimer_2 and second FlexPWM module - features unavailable in LQFP variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_MAIN | Main power supply | 3.0–3.6 V input for core and digital logic; requires local decoupling per datasheet layout guidelines |
| VDD_ANA | Analog power supply | Separate 3.0–3.6 V rail for ADC, SWG, and analog reference - critical for noise isolation in motor control |
| VRH / VRL | Analog reference inputs | Configurable high/low reference for 12-bit ADC - enables ratiometric sensing with external voltage dividers |
| ET0_0–ET0_5 | eTimer_0 channel outputs | Dedicated PWM/capture pins for first eTimer unit - used in EPS motor phase timing and diagnostics |
| FLEXRAY_TX0 / RX0 | FlexRay differential pair | Channel 0 physical interface for time-triggered communication in chassis domain networks |
| CAN0_TX / CAN0_RX | FlexCAN 0 differential pair | ISO 11898-2 compliant interface for high-speed CAN bus in airbag deployment control |
| SWD_CLK / SWD_IO | Nexus Class 3+ debug port | Two-wire JTAG-compatible interface for real-time trace, calibration, and safety verification during development |
Key Features
| Feature | Design Value |
|---|---|
| LockStep Dual-Core Operation | Hardware-enforced comparison of dual e200z4d cores with automatic fault detection and NMI escalation - meets ASIL-D diagnostic coverage requirements |
| Replicated Safety Peripherals | FCCU, RCCU, SWT, TSENS, INTC, and eDMA duplicated across both cores - eliminates single-point failure paths in safety islands |
| On-Chip RWW Flash | 1 MB flash partitioned to allow concurrent read/write operations - enables seamless firmware updates without system interruption in EPS controllers |
| FlexRay v2.1 Module | 2-channel, 64-message-buffer implementation with deterministic scheduling - supports time-triggered architectures in brake-by-wire systems |
| Cross Triggering Unit (CTU) | Hardware-synchronized triggering between ADC, eTimer, and FlexPWM - ensures precise phase-aligned sampling for motor current reconstruction |
| Integrated Junction Temperature Sensor | Dual replicated sensors with ±2.5 °C accuracy over full range - provides real-time thermal monitoring for torque derating in EPS applications |
Applications
| Electric Power Steering (EPS) | Airbag Deployment Control |
|---|---|
Use Scenario: Real-time torque assist calculation, motor position feedback, and fault-tolerant motor drive in 12 V automotive EPS systems. IC Role / Device Role / Timing Role: Primary safety controller executing ASIL-D software on lockstep cores; manages FlexPWM for 3-phase inverter, ADC for current sensing, and FlexCAN for vehicle network communication. Use Value: Enables <100 µs fault reaction time via replicated watchdogs and FCCU, meeting ISO 26262 ASIL-D requirements for steering actuation. | Use Scenario: Crash event detection, pyrotechnic squib firing sequencing, and occupant classification using accelerometer and pressure sensor inputs. IC Role / Device Role / Timing Role: Central safety MCU performing sensor fusion, decision logic, and dual-channel squib driver control with hardware redundancy. Use Value: Dual FlexCAN interfaces provide redundant communication to crash sensors and restraint modules; replicated ADCs ensure valid crash signal acquisition under fault conditions. |
| Electro-Hydraulic Power Steering (EHPS) | Brake-by-Wire System Monitoring |
Use Scenario: Closed-loop hydraulic pressure control, pump motor management, and valve actuation in heavy-duty vehicle EHPS systems. IC Role / Device Role / Timing Role: High-integrity controller running safety-critical PID loops; uses eTimer for PWM generation and CTU for synchronized pressure/position sampling. Use Value: 120 MHz dual-core performance delivers sub-microsecond loop times; FlexRay interface enables deterministic communication with central chassis controller. | Use Scenario: Real-time monitoring of brake pressure, pedal travel, and wheel speed signals in x-by-wire architectures with fail-operational redundancy. IC Role / Device Role / Timing Role: Secondary safety monitor interfacing with primary brake ECU via FlexRay; performs cross-checking of sensor data and actuator commands. Use Value: Replicated junction temperature sensors and ECC-protected SRAM ensure reliable operation at 150 °C junction temperature during sustained braking events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive safety microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPC5643LFF2MLQ1 | Same die, identical electrical specs; differs only in tape-and-reel packaging (no tray option) | No functional difference; suitable for automated SMT assembly where reel format required | Select MPC5643LFF2MLQ1 for high-volume pick-and-place production; SPC5643LFF2MLQ1R is preferred for prototyping and low-volume builds |
| SPC5643LK0MLQ1R | Same package and pinout, but 512 KB flash (vs. 1 MB) and no FlexRay module | Limited to ASIL-B applications (e.g., basic EPS assist) without FlexRay or full ASIL-D diagnostic coverage | Choose only if FlexRay and full 1 MB flash are not required; not drop-in for ASIL-D designs relying on FlexRay or RWW |
Compared with SPC5643LFF2MLQ1R, MPC5643LFF2MLQ1 offers identical functionality in reel format for volume manufacturing, while SPC5643LK0MLQ1R reduces flash and removes FlexRay - making it unsuitable for ASIL-D chassis networks but viable for cost-sensitive ASIL-B subsystems.
Availability
SPC5643LFF2MLQ1R is available at Aetrix Electronics and suitable for electric power steering (EPS), airbag control, and electro-hydraulic power steering (EHPS) requiring stable component supply across automotive production lifecycles.
Supply support for SPC5643LFF2MLQ1R 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The SPC5643LFF2MLQ1R belongs to NXP's SPC56x automotive MCU family, designed specifically for ASIL-D functional safety applications in electric power steering, airbag, and chassis control systems - integrating lockstep cores, safety peripherals, and automotive-grade qualification.
FAQ
What is the package type and dimensions of the SPC5643LFF2MLQ1R?
The SPC5643LFF2MLQ1R uses a 257-ball MAPBGA package measuring 14 mm × 14 mm × 0.8 mm with 0.8 mm ball pitch. This package enables full peripheral access including eTimer_2 and the second FlexPWM module - features omitted in the LQFP variant. The footprint is documented in NXP's MPC5643L datasheet Section 4.1.
Does the SPC5643LFF2MLQ1R support ASIL-D compliance out of the box?
Yes, the SPC5643LFF2MLQ1R is architected for ASIL-D compliance per ISO 26262, with hardware-level safety mechanisms including LockStep dual-core operation, FCCU, replicated watchdogs and temperature sensors, boot-time MBIST/LBIST, and Sphere of Replication for CPU, eDMA, and crossbar. Full compliance requires correct configuration per NXP's Safety Application Guide for MPC5643L.
What communication interfaces are available on the SPC5643LFF2MLQ1R?
The SPC5643LFF2MLQ1R integrates 2× FlexCAN 2.0B (32 message objects each), 2× LINFlexD, 3× DSPI, 1× FlexRay v2.1 (2 channels, 64 message buffers, up to 10 Mbit/s), and Nexus Class 3+ debug interface. Notably, FlexRay and dual FlexCAN support enable redundant, time-triggered communication essential for ASIL-D chassis applications.
How does the SPC5643LFF2MLQ1R handle memory protection and error correction?
The SPC5643LFF2MLQ1R implements 16-region MPU for memory access control per master, plus ECC on both 1 MB flash (1-bit correction, 2-bit detection) and 128 KB SRAM (same ECC scheme). Error reporting is handled by ECSM and forwarded to FCCU for safety response - ensuring integrity of code and runtime data in ASIL-D environments.
Is the SPC5643LFF2MLQ1R pin-compatible with other members of the MPC5643L family?
SPC5643LFF2MLQ1R shares the same 257-MAPBGA package and pinout with other MPC5643L variants in that package (e.g., SPC5643LK0MLQ1R), but functional differences exist: SPC5643LK0MLQ1R omits FlexRay and has half the flash. Pin compatibility does not guarantee functional equivalence - FlexRay-enabled designs require the full-feature SPC5643LFF2MLQ1R.
SPC5643LFF2MLQ1R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 144-LQFP
- Series:
- MPC56xx Qorivva
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- e200z4
- Core Size:
- 32-Bit Dual-Core
- Speed:
- 120MHz
- Connectivity:
- CANbus, FlexRay, LINbus, SPI, UART/USART
- Peripherals:
- DMA, POR, PWM, WDT
- Number of I/O:
- -
- Program Memory Size:
- 1MB (1M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 128K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 5.5V
- Data Converters:
- A/D 32x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
SPC5643LFF2MLQ1R FAQ
1.How can I place an order for SPC5643LFF2MLQ1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC5643LFF2MLQ1R 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 SPC5643LFF2MLQ1R reliable?
The price and inventory of SPC5643LFF2MLQ1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC5643LFF2MLQ1R is usually 5 days.
3.What payment methods are accepted for SPC5643LFF2MLQ1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC5643LFF2MLQ1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC5643LFF2MLQ1R?
SPC5643LFF2MLQ1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC5643LFF2MLQ1R 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 SPC5643LFF2MLQ1R?
For technical support, including SPC5643LFF2MLQ1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC5643LFF2MLQ1R requirements.
6.How does Aetrix verify that SPC5643LFF2MLQ1R is sourced from the original manufacturer or authorized distributors?
All SPC5643LFF2MLQ1R 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 SPC5643LFF2MLQ1R meets industry standards.
7.What is the process for return or replacement of SPC5643LFF2MLQ1R?
All SPC5643LFF2MLQ1R units undergo pre-shipment inspection (PSI). If there is an issue with SPC5643LFF2MLQ1R, 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 SPC5643LFF2MLQ1R part is unused and in its original packaging.
Return procedure for SPC5643LFF2MLQ1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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