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NXP Semiconductors SPC5643LF2MLQ8
- Part No.:
- SPC5643LF2MLQ8
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
SPC5643LF2MLQ8.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,047
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Product details
Overview
SPC5643LF2MLQ8 from NXP Semiconductors is a dual-core automotive safety microcontroller built on Power Architecture® e200z4d cores, operating up to 120 MHz with LockStep and Decoupled Parallel modes. It integrates 1 MB flash with ECC, 128 KB SRAM with ECC, and supports SIL3/ASILD compliance via FCCU, RCCU, and replicated safety peripherals. It targets electric power steering (EPS) and airbag control systems requiring functional safety certification.
For engineers reviewing the SPC5643LF2MLQ8 datasheet, SPC5643LF2MLQ8 pinout, SPC5643LF2MLQ8 application, or SPC5643LF2MLQ8 equivalent, key selection criteria include dual-core lockstep operation, ISO 26262 ASIL-D support, FlexRay v2.1 (10 Mbit/s), dual FlexCAN 2.0B interfaces, and 2×12-bit ADCs with cross-triggering for motor control timing precision.
Technical Context
The SPC5643LF2MLQ8 implements two replicated e200z4d cores sharing a 32-bit AHB bus and dual 32-bit AXI-like crossbar switch (XBAR), enabling concurrent instruction fetch and data access with programmable arbitration. Its safety architecture isolates fault domains using Sphere of Replication (SoR) covering CPU, eDMA, XBAR, and peripheral bridges - all monitored by FCCU and validated via hardware-triggered MBIST/LBIST at boot.
It features decoupled parallel mode for high-throughput deterministic execution, Nexus Class 3+ debug interface for real-time trace, and dedicated auxiliary clock domain (up to 120 MHz) driving FlexPWM, eTimer, CTU, ADC, and SWG - enabling synchronized PWM generation, ADC sampling, and sine-wave output without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | e200z4d dual core, Power Architecture®, VLE + SPE support, 5-stage pipeline, MMU with 16 entries |
| Max Core Frequency | 120 MHz with ±2% FMPLL modulation; enables >240 DMIPS real-time processing for EPS torque calculation |
| Memory | 1 MB flash with ECC & RWW; 128 KB SRAM with ECC; supports EEPROM emulation in flash partitions |
| Safety Certification | SIL3/ASIL-D compliant via LockStep mode, FCCU, RCCU, replicated watchdogs, temperature sensors, and boot-time MBIST/LBIST |
| Peripherals | FlexRay v2.1 (2 channels, 64 buffers, 10 Mbit/s); 2×FlexCAN 2.0B (32 message objects each); 2×12-bit ADC (16 ch total, CTU-synchronized) |
| Timing & Control | 3×eTimer (6-channel each); 2×FlexPWM (4×16-bit channels/module); Sine Wave Generator (32-point SWG with LPF) |
| Supply & Environment | Single 3.0–3.6 V supply; ambient operating range –40 °C to +125 °C; junction range –40 °C to +150 °C |
Pinout & Package
SPC5643LF2MLQ8 is housed in a 257-ball MAPBGA package (14 mm × 14 mm × 0.8 mm), optimized for automotive ECU thermal and mechanical reliability. Pin assignments follow NXP's MPC5643L standard ballout with dedicated power/ground arrays, differential clock inputs, FlexRay/FlexCAN transceiver pins, and configurable SIUL I/O banks supporting GPIO, LIN, DSPI, and analog functions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_IO / VSS_IO | I/O power supply and ground | Dual 3.3 V I/O rails with dedicated decoupling pads; supports 5 V-tolerant LINFlexD pins |
| VDDA / VSSA | Analog supply and ground | Isolated 3.3 V analog domain for ADC/SWG; requires separate filtering to meet <10 mVpp noise spec |
| XTAL / EXTAL | Main crystal oscillator interface | 4–40 MHz external crystal input; drives FMPLL for system clock generation and jitter-sensitive FlexRay timing |
| FRAY_TX0 / FRAY_RX0 | FlexRay Channel 0 differential pair | High-speed differential signaling (10 Mbit/s); requires 100 Ω controlled-impedance routing and common-mode choke |
| CAN0_TX / CAN0_RX | FlexCAN 0 differential transceiver interface | ISO 11898-2 compliant; supports wake-up via bus activity and loop-back self-test |
| ADC0_IN0–ADC0_IN15 | Analog input channels | 16 single-ended or 8 differential inputs per ADC; routed through SIUL mux for shared pin assignment with GPIO/eTimer |
Key Features
| Feature | Design Value |
|---|---|
| LockStep + Decoupled Parallel Mode | Enables both functional safety (ASIL-D) and high-performance deterministic execution-no software rework needed to switch between modes |
| Replicated Safety Subsystem | FCCU, RCCU, watchdogs, TSENS, and INTC are fully duplicated per core-fault detection latency < 1 µs with hardware arbitration |
| CTU-Synchronized ADC & PWM | Cross Triggering Unit coordinates ADC sampling start, eTimer capture, and FlexPWM edge alignment within one system clock cycle |
| On-chip SWG with LPF | Generates calibrated sine waves (up to 10 kHz) directly from SRAM lookup table-eliminates external DAC and filter components |
| Nexus Class 3+ Debug | Real-time instruction trace, data watchpoints, and non-intrusive memory access-enables ISO 26262 tool qualification for verification |
Applications
| Electric Power Steering (EPS) | Airbag Deployment Control |
|---|---|
Use Scenario: Real-time torque assist calculation, motor phase current sensing, and fail-safe shutdown during collision events. IC Role / Device Role / Timing Role: Primary safety controller executing ASIL-D motor control algorithms with lockstep core validation and hardware CRC-checked flash execution. Use Value: Enables deterministic 100 µs control loop closure using CTU-synchronized ADC sampling and FlexPWM updates-meeting ISO 26262 timing constraints without software overhead. | Use Scenario: Multi-sensor fusion (accelerometer, pressure, seat occupancy), pyro fuse triggering, and crash event logging. IC Role / Device Role / Timing Role: Central safety MCU managing dual FlexCAN networks for sensor communication and redundant pyro driver outputs with FCCU-monitored fault escalation. Use Value: Replicated junction temperature sensors and boot-time LBIST ensure sensor integrity before deployment-reducing false triggers and meeting ASIL-D diagnostic coverage requirements. |
| Brake-by-Wire Actuation | Hydraulic Power Steering (EHPS) |
Use Scenario: Closed-loop pressure control, valve position feedback, and redundancy management across primary/backup hydraulic circuits. IC Role / Device Role / Timing Role: Dual-core lockstep controller interfacing with FlexRay for high-integrity actuator commands and DSPI for pressure sensor reads. Use Value: FlexRay v2.1 deterministic 10 Mbit/s messaging guarantees sub-200 µs end-to-end latency for brake command propagation-critical for active safety response time. | Use Scenario: Motor speed regulation, oil temperature monitoring, and CAN-based diagnostics in electro-hydraulic steering pumps. IC Role / Device Role / Timing Role: High-reliability MCU running real-time PID loops on e200z4d cores while concurrently handling LINFlexD diagnostics and FlexCAN gateway functions. Use Value: Integrated 16 MHz RC oscillator enables fast wake-up (<100 µs) from stop mode-reducing system power consumption without compromising responsiveness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive safety microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPC5643LK2MLQ8 | Same die, higher flash endurance rating (100k cycles vs. 30k), identical pinout and safety architecture | Preferred for high-write-cycle EEPROM emulation use cases (e.g., adaptive learning in EPS) | Select when extended flash write endurance is required without changing PCB layout or firmware |
| SPC560P50L5 | Single e200z0 core, no FlexRay, lower ASIL-B capability, 512 KB flash, 64 KB SRAM | Targeted at cost-sensitive body control modules-not suitable for ASIL-D EPS or airbag systems | Consider only for non-safety-critical subsystems where FlexRay and dual-core lockstep are unnecessary |
Compared with SPC5643LF2MLQ8, MPC5643LK2MLQ8 offers enhanced flash endurance for field-programmable calibration data, while SPC560P50L5 sacrifices safety integrity and peripheral richness to reduce BOM cost-making it unsuitable for primary vehicle motion control.
Availability
SPC5643LF2MLQ8 is available at Aetrix Electronics and suitable for electric power steering (EPS), airbag control units, brake-by-wire actuators, and hydraulic power steering (EHPS) systems requiring stable component supply across long automotive production lifecycles.
Supply support for SPC5643LF2MLQ8 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 leader focused on secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in functional safety and embedded processing.
The SPC5643LF2MLQ8 belongs to NXP's SPC56x automotive MCU family-designed specifically for ASIL-D safety-critical vehicle motion control, featuring integrated safety mechanisms, deterministic real-time performance, and automotive-grade qualification (AEC-Q100 Grade 1).
FAQ
What safety certifications does the SPC5643LF2MLQ8 support?
The SPC5643LF2MLQ8 supports ISO 26262 ASIL-D compliance through hardware-enforced LockStep operation, FCCU fault collection, replicated watchdogs and temperature sensors, boot-time MBIST/LBIST, and SIL3-certified safety manual. It ships with NXP's Safety Application Guide and certified safety libraries-enabling full FMEDA and FMEA traceability for SPC5643LF2MLQ8-based designs.
Does the SPC5643LF2MLQ8 support FlexRay v2.1 with dual-channel operation?
Yes, the SPC5643LF2MLQ8 integrates a full FlexRay v2.1 module with two independent channels, 64 message buffers, and data rates up to 10 Mbit/s. Each channel supports dynamic and static slot configurations, cold-start synchronization, and hardware CRC protection-verified in the MPC5643L reference manual and supported by NXP's S32DS IDE drivers for SPC5643LF2MLQ8.
What is the maximum operating temperature for the SPC5643LF2MLQ8?
The SPC5643LF2MLQ8 has a junction temperature range of –40 °C to +150 °C and an ambient operating range of –40 °C to +125 °C when used with the specified external ballast transistor in MAPBGA packaging. These ratings are validated per AEC-Q100 Grade 1 and documented in Section 3.4 of the MPC5643L datasheet for SPC5643LF2MLQ8.
Can the SPC5643LF2MLQ8 execute code from flash while writing to another flash sector?
Yes, the SPC5643LF2MLQ8 supports Read-While-Write (RWW) operation across its 1 MB flash array. The platform flash controller enables concurrent execution from one bank while programming another, with configurable stall behavior and interrupt notification-detailed in Section 1.5.7 of the MPC5643L datasheet for SPC5643LF2MLQ8.
How many ADC channels does the SPC5643LF2MLQ8 provide, and are they synchronized?
The SPC5643LF2MLQ8 integrates two independent 12-bit ADC modules, each with 16 input channels (3 internal, 4 shared, 9 external). They are fully synchronized via the Cross Triggering Unit (CTU), allowing simultaneous sampling triggered by eTimer compare events or FlexPWM edges-ensuring phase-accurate current/voltage measurement critical for SPC5643LF2MLQ8-based motor control.
SPC5643LF2MLQ8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 144-LQFP
- Series:
- MPC56xx Qorivva
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- e200z4
- Core Size:
- 32-Bit Dual-Core
- Speed:
- 80MHz
- 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:
SPC5643LF2MLQ8 FAQ
1.How can I place an order for SPC5643LF2MLQ8 through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC5643LF2MLQ8 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 SPC5643LF2MLQ8 reliable?
The price and inventory of SPC5643LF2MLQ8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC5643LF2MLQ8 is usually 5 days.
3.What payment methods are accepted for SPC5643LF2MLQ8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC5643LF2MLQ8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC5643LF2MLQ8?
SPC5643LF2MLQ8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC5643LF2MLQ8 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 SPC5643LF2MLQ8?
For technical support, including SPC5643LF2MLQ8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC5643LF2MLQ8 requirements.
6.How does Aetrix verify that SPC5643LF2MLQ8 is sourced from the original manufacturer or authorized distributors?
All SPC5643LF2MLQ8 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 SPC5643LF2MLQ8 meets industry standards.
7.What is the process for return or replacement of SPC5643LF2MLQ8?
All SPC5643LF2MLQ8 units undergo pre-shipment inspection (PSI). If there is an issue with SPC5643LF2MLQ8, 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 SPC5643LF2MLQ8 part is unused and in its original packaging.
Return procedure for SPC5643LF2MLQ8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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