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NXP Semiconductors SPC5643LF2MLQ1
- Part No.:
- SPC5643LF2MLQ1
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
SPC5643LF2MLQ1.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:276
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Product details
Overview
SPC5643LF2MLQ1 from NXP Semiconductors is a dual-core automotive microcontroller based on Power Architecture e200z4d CPUs operating up to 120 MHz, featuring 1 MB flash with ECC, 128 KB SRAM with ECC, and SIL3/ASILD 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 SPC5643LF2MLQ1 datasheet, SPC5643LF2MLQ1 pinout, SPC5643LF2MLQ1 application, or SPC5643LF2MLQ1 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 safety features such as boot-time MBIST/LBIST and replicated junction temperature sensors.
Technical Context
The SPC5643LF2MLQ1 implements two e200z4d cores in either LockStep (for ASIL D) or Decoupled Parallel mode (for high-performance computation), each with 4 KB instruction cache, MMU, VLE support, and SPE for DSP operations. 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, with Fault Collection and Control Unit (FCCU), Redundancy Control and Checker Unit (RCCU), and replicated CMU/PMU/ADC/TSENS modules. The device integrates Nexus Class 3+ debug, IEEE 1149.1 JTAG, and hardware-triggered BIST for memory and logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | e200z4d dual core, Power Architecture v2.03, Harvard bus, 5-stage pipeline |
| Max Core Frequency | 120 MHz with ±2% FMPLL modulation - enables deterministic real-time response in safety-critical EPS control loops |
| Flash Memory | 1 MB with ECC and RWW - supports safe over-the-air updates and EEPROM emulation without external memory |
| SRAM | 128 KB on-chip SRAM with ECC - provides fault-tolerant data storage for safety state variables and control buffers |
| Safety Certification | SIL3 / ASIL D compliant via LockStep, FCCU, replicated watchdogs, and boot-time MBIST/LBIST - meets ISO 26262 requirements for automotive ECU deployment |
| Communication Interfaces | 2 × FlexCAN 2.0B (32 msg objects), 2 × LINFlexD, 3 × DSPI, 1 × FlexRay v2.1 (2 ch, 64 msg buffers, 10 Mbit/s) - enables full vehicle network integration in ADAS and chassis domains |
| Analog Peripherals | 2 × 12-bit ADC (16 ch total), CTU for cross-triggering, SWG (32-point sine generator) - supports motor current sensing and resolver excitation in EPS applications |
Pinout & Package
SPC5643LF2MLQ1 is housed in a 257-ball MAPBGA package (14 mm × 14 mm × 0.8 mm), optimized for automotive thermal and mechanical reliability. Pin assignments follow NXP's MPC5643L family layout with dedicated supply, ground, clock, reset, Nexus debug, and functional I/O banks.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_MAIN | Main power supply | 3.0–3.6 V input for core and I/O domains; requires local decoupling per NXP layout guidelines |
| VDDA | Analog supply | 3.0–3.6 V analog reference for ADC/SWG; isolated from digital supply to minimize noise coupling |
| RESET_B | Active-low reset input | Asynchronous reset assertion resets all logic domains; monitored by PMU and FCCU for fail-safe recovery |
| NEXUS_TDI/TDO/TMS/TCK | Nexus debug interface | Class 3+ trace-capable port for real-time code profiling, safety verification, and runtime fault injection testing |
| FLEXRAY_TX0/RX0 | FlexRay channel 0 differential pair | High-speed deterministic communication for x-by-wire systems; supports 10 Mbit/s with built-in bus guardian logic |
| CAN0_TX/CAN0_RX | FlexCAN channel 0 differential pair | ISO 11898-1 compliant CAN 2.0B interface with 32 message objects and hardware filtering for ECU messaging |
Key Features
| Feature | Design Value |
|---|---|
| Dual e200z4d LockStep execution | Hardware-enforced instruction-level redundancy with automatic fault detection and failover - essential for ASIL D motor control |
| Replicated FCCU + RCCU | Independent fault collection and output checking across both processing channels - ensures end-to-end safety chain integrity |
| Boot-time MBIST/LBIST | Hardware-triggered self-test at power-on for flash, SRAM, and logic blocks - satisfies ISO 26262 diagnostic coverage requirements |
| FlexRay v2.1 with 64 message buffers | Two-channel deterministic bus with programmable slot timing and dynamic segment support - enables time-triggered EPS actuation |
| Programmable CTU | Hardware synchronization unit linking ADC sampling, PWM edge generation, and eTimer triggers - eliminates software jitter in motor control timing |
Applications
| Electric Power Steering (EPS) | Airbag Control Unit (ACU) |
|---|---|
Use Scenario: Real-time torque assist calculation and motor phase current regulation under crash conditions. IC Role / Device Role / Timing Role: Primary safety controller executing ASIL D motor control algorithms with lockstep core validation and FlexRay-based actuator coordination. Use Value: Dual-core LockStep ensures continuous torque command validity; replicated ADCs and CTU enable synchronized current sensing and PWM generation within <1 µs jitter. | Use Scenario: Crash event detection, squib firing sequence management, and occupant classification data acquisition. IC Role / Device Role / Timing Role: Central safety MCU managing sensor fusion (accelerometer, pressure), pyro driver control, and CAN/FlexRay communication with restraint ECUs. Use Value: FCCU-monitored boot BIST guarantees RAM/flash integrity before deployment; replicated TSENS validates thermal margin during squib activation. |
| Electro-Hydraulic Power Steering (EHPS) | Brake-by-Wire Interface Module |
Use Scenario: Closed-loop hydraulic pressure control using solenoid valves and feedback from pressure/position sensors. IC Role / Device Role / Timing Role: High-integrity actuator controller interfacing with CAN for vehicle bus commands and DSPI for sensor SPI slaves. Use Value: 120 MHz e200z4d core delivers sub-50 µs control loop latency; ECC-protected SRAM retains critical pressure setpoints during transient voltage events. | Use Scenario: Bridging ABS/ESC CAN messages to FlexRay-actuated brake calipers with deterministic timing. IC Role / Device Role / Timing Role: Safety gateway processor performing protocol translation, message filtering, and time-triggered brake actuation scheduling. Use Value: FlexRay v2.1 dual-channel support enables redundant brake command paths; Nexus trace allows runtime verification of message deadline adherence. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive safety microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPC5643LK2MLQ1 | Same die, higher temperature grade (–40 °C to 150 °C junction), identical pinout and firmware compatibility | Required for under-hood applications exceeding 125 °C ambient; validated for extended thermal cycling | Select when ambient temperature exceeds 125 °C or when extended lifetime reliability under thermal stress is mandated |
| SPC560P50L5 | Single e200z0 core, 80 MHz max, 512 KB flash, no FlexRay, lower ASIL capability (ASIL B) | Targeted at cost-sensitive body control modules where full ASIL D is not required | Choose only for non-safety-critical subsystems lacking FlexRay or dual-core lockstep requirements |
Compared with MPC5643LK2MLQ1, SPC5643LF2MLQ1 offers identical functionality at a lower junction temperature rating (125 °C vs. 150 °C), reducing thermal derating overhead in cooled ECU enclosures; versus SPC560P50L5, it delivers ASIL D compliance, FlexRay, and dual-core performance essential for next-generation x-by-wire systems.
Availability
SPC5643LF2MLQ1 is available at Aetrix Electronics and suitable for electric power steering (EPS), airbag control units (ACU), and electro-hydraulic power steering (EHPS) systems requiring stable component supply, long-term automotive lifecycle support, and ASIL D-certified silicon.
Supply support for SPC5643LF2MLQ1 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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in functional safety and embedded processing.
The SPC5643LF2MLQ1 belongs to the MPC5643L automotive MCU family, designed specifically for ASIL D–compliant chassis and safety-critical control applications including EPS, airbag, and brake-by-wire systems.
FAQ
What is the maximum operating frequency of the SPC5643LF2MLQ1?
The SPC5643LF2MLQ1 operates at a maximum core frequency of 120 MHz, enabled by its Frequency-Modulated Phase-Locked Loop (FMPLL). This frequency is sustained across the full –40 °C to 125 °C ambient temperature range and supports deterministic real-time execution for automotive safety applications. The FMPLL also provides ±2% frequency modulation to reduce electromagnetic interference, a critical feature for automotive EMC compliance. All timing specifications in the datasheet assume operation at this rated frequency.
Does the SPC5643LF2MLQ1 support FlexRay communication?
Yes, the SPC5643LF2MLQ1 integrates a full FlexRay v2.1 Rev. A module with two independent channels, 64 configurable message buffers, and data rates up to 10 Mbit/s. It supports both static and dynamic segments, bus guardian functionality, and hardware timestamping - making it suitable for time-triggered x-by-wire applications such as EPS and brake-by-wire. The FlexRay interface is fully replicated in LockStep mode and monitored by the FCCU for fault detection.
What safety certifications does the SPC5643LF2MLQ1 meet?
The SPC5643LF2MLQ1 is designed to meet SIL3 per IEC 61508 and ASIL D per ISO 26262. Its safety architecture includes hardware LockStep execution, replicated FCCU/RCCU/CMU/PMU modules, boot-time MBIST/LBIST, and runtime error-checking units for flash, SRAM, and peripherals. NXP provides a Safety Application Guide and FMEDA reports to support functional safety analysis - all validated for use in production automotive ECUs targeting ASIL D decomposition.
How much on-chip memory does the SPC5643LF2MLQ1 provide?
The SPC5643LF2MLQ1 includes 1 MB of on-chip flash memory with Error Correction Code (ECC) and Read-While-Write (RWW) capability, plus 128 KB of on-chip SRAM also protected with ECC. Both memories support EEPROM emulation in software, eliminating the need for external non-volatile storage. The flash is partitioned into sectors ranging from 16 KB to 256 KB, enabling robust firmware update strategies with atomic rollback and dual-bank operation.
Is the SPC5643LF2MLQ1 pin-compatible with other MPC5643L variants?
Yes, the SPC5643LF2MLQ1 shares the same 257-ball MAPBGA package (14 mm × 14 mm) and identical pinout with other MPC5643L family members including MPC5643LK2MLQ1 and MPC5643LH2MLQ1. This enables direct PCB reuse across temperature and speed grades. However, firmware must be validated for each variant's specific flash configuration, clock tree settings, and safety startup sequence - particularly when migrating between F2 (125 °C) and K2 (150 °C) grades.
SPC5643LF2MLQ1 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:
- 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:
SPC5643LF2MLQ1 FAQ
1.How can I place an order for SPC5643LF2MLQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC5643LF2MLQ1 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 SPC5643LF2MLQ1 reliable?
The price and inventory of SPC5643LF2MLQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC5643LF2MLQ1 is usually 5 days.
3.What payment methods are accepted for SPC5643LF2MLQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC5643LF2MLQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC5643LF2MLQ1?
SPC5643LF2MLQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC5643LF2MLQ1 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 SPC5643LF2MLQ1?
For technical support, including SPC5643LF2MLQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC5643LF2MLQ1 requirements.
6.How does Aetrix verify that SPC5643LF2MLQ1 is sourced from the original manufacturer or authorized distributors?
All SPC5643LF2MLQ1 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 SPC5643LF2MLQ1 meets industry standards.
7.What is the process for return or replacement of SPC5643LF2MLQ1?
All SPC5643LF2MLQ1 units undergo pre-shipment inspection (PSI). If there is an issue with SPC5643LF2MLQ1, 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 SPC5643LF2MLQ1 part is unused and in its original packaging.
Return procedure for SPC5643LF2MLQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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