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NXP Semiconductors SPC5643LFF0MLQ1
- Part No.:
- SPC5643LFF0MLQ1
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
SPC5643LFF0MLQ1.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,462
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Product details
Overview
SPC5643LFF0MLQ1 from NXP Semiconductors is a dual-core automotive safety microcontroller based on Power Architecture e200z4d CPUs, operating up to 120 MHz with 1 MB flash (ECC), 128 KB SRAM (ECC), and integrated FlexRay, dual FlexCAN 2.0B, and SIL3/ASILD-certified lockstep safety architecture. It targets electric power steering (EPS) and airbag control systems.
For engineers reviewing the SPC5643LFF0MLQ1 datasheet, SPC5643LFF0MLQ1 pinout, SPC5643LFF0MLQ1 application, or SPC5643LFF0MLQ1 equivalent, key selection criteria include ASIL-D fault containment, dual-core lockstep vs. decoupled operation modes, 257-pin MAPBGA package thermal performance at −40 °C to 125 °C ambient, and hardware-level ECC coverage for flash/SRAM.
Technical Context
The SPC5643LFF0MLQ1 implements two replicated e200z4d cores with Harvard architecture, dual-issue 5-stage pipeline, VLE instruction set, and MMU-each with independent I-cache (4 KB, EDC) and SPE support. Its crossbar switch provides 4 master × 3 slave ports with programmable arbitration, enabling concurrent access to flash, SRAM, and peripherals including FlexRay and dual FlexCAN.
Safety is enforced via Sphere of Replication (SoR) covering CPU, eDMA, and crossbar, backed by FCCU, RCCU, boot-time MBIST/LBIST, replicated watchdogs and temperature sensors, and 16-region MPU. Clocking uses dual FMPLLs plus 16 MHz RC and 4–40 MHz crystal oscillators, with auxiliary domains for motor control peripherals (FlexPWM, ADC, CTU).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | e200z4d dual-core Power Architecture, lockstep or decoupled operation, 120 MHz max frequency |
| Memory | 1 MB flash with ECC and RWW; 128 KB SRAM with ECC; supports EEPROM emulation in software |
| Safety Certification | SIL3/ASIL-D compliant with lockstep SoR, FCCU, MBIST/LBIST, replicated watchdog & temp sensor |
| Peripherals | 2× FlexCAN 2.0B (32 msg objects each); 1× FlexRay v2.1 (2 ch, 64 msg buffers); 2× LINFlexD; 3× DSPI |
| Analog & Timing | 2× 12-bit ADC (16 ch total, CTU-synchronized); 3× eTimer (6 ch each); 2× FlexPWM (4×16-bit ch each) |
| Package & Environment | 257-pin MAPBGA (14 mm × 14 mm × 0.8 mm); −40 °C to 125 °C ambient; −40 °C to 150 °C junction |
| Power Supply | Single 3.0 V–3.6 V supply; integrated voltage regulator; no external ballast transistor required |
Pinout & Package
SPC5643LFF0MLQ1 is housed in a 257-ball MAPBGA package (14 mm × 14 mm × 0.8 mm), optimized for automotive ECU thermal and routing requirements. Pin assignments follow NXP's MPC5643L documentation, with dedicated supply, ground, clock, reset, Nexus debug, and functional I/O banks.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_MAIN / VDD_IO | Main power supply | 3.0–3.6 V core/I/O rail; multiple pins distributed for low-impedance delivery and noise suppression |
| VSS | Digital ground | System reference for digital logic; multiple pins ensure stable return path and minimize ground bounce |
| VRST_B | Reset input (active-low) | Asynchronous reset assertion; initiates full system reset sequence including BIST and safety unit initialization |
| CLKIN | External crystal input | Accepts 4–40 MHz crystal; feeds main oscillator for FMPLL reference; supports failover to internal RC |
| NEXUS_TDI/TDO/TCK/TMS | Nexus Class 3+ debug interface | Enables real-time trace, non-intrusive debugging, and safety-critical runtime monitoring per ISO 26262 |
| CAN0_TX / CAN0_RX | FlexCAN channel 0 differential pair | Compliant with ISO 11898-1; supports bit rates up to 1 Mbit/s; integrated bus protection and filtering |
| FRAY_A_TX / FRAY_A_RX | FlexRay channel A differential pair | Supports 2.5–10 Mbit/s data rate; includes built-in bus guardian and protocol controller for deterministic communication |
Key Features
| Feature | Design Value |
|---|---|
| Lockstep Core Replication | Hardware-enforced dual-core comparison with automatic fault detection and safe state entry upon mismatch |
| On-chip ECC Memory Protection | 1-bit correction / 2-bit detection for both 1 MB flash and 128 KB SRAM, covering data and address paths |
| Integrated Safety Subsystem | FCCU + RCCU + replicated NMI + 16-region MPU + boot-time MBIST/LBIST enable ASIL-D compliance without external ICs |
| Motor Control Peripherals | Dedicated auxiliary clock domain synchronizes FlexPWM, eTimer, ADC, CTU, and SWG for precise timing-critical actuation |
| Flexible Clock Architecture | Dual FMPLLs + 16 MHz RC + 4–40 MHz crystal support dynamic frequency scaling and failover redundancy |
Applications
| Electric Power Steering (EPS) | Airbag Deployment Control |
|---|---|
Use Scenario: Real-time torque assist calculation and motor phase current regulation under varying vehicle speed and road load. IC Role / Device Role / Timing Role: Primary safety controller executing ASIL-D motor control algorithms with lockstep core validation and hardware CRC integrity checks. Use Value: Enables deterministic <100 µs loop closure for torque ripple suppression while meeting ISO 26262 ASIL-D fault tolerance requirements. | Use Scenario: Multi-sensor fusion (accelerometer, pressure, seat occupancy) triggering pyrotechnic deployment within 20 ms of crash detection. IC Role / Device Role / Timing Role: Central safety MCU managing sensor interfaces, decision logic, and dual-channel squib drivers with redundant path validation. Use Value: Achieves <5 ms end-to-end latency from crash signal to squib fire command using replicated eDMA and CTU-synchronized ADC sampling. |
| Brake-by-Wire Actuation | Advanced Driver Assistance Systems (ADAS) Sensor Hub |
Use Scenario: Closed-loop hydraulic pressure control during regenerative braking coordination and emergency stop maneuvers. IC Role / Device Role / Timing Role: High-integrity actuator controller interfacing with solenoid drivers, pressure transducers, and vehicle CAN backbone. Use Value: Guarantees <150 µs worst-case response time for pressure modulation commands via FlexPWM with dead-time insertion and fault feedback. | Use Scenario: Aggregating radar, camera, and ultrasonic sensor data for object tracking and collision warning before forwarding to central ADAS ECU. IC Role / Device Role / Timing Role: Pre-processing node with FlexRay backbone connectivity, time-synchronized multi-ADC acquisition, and CRC-protected data framing. Use Value: Delivers timestamp-coherent sensor fusion output at 10 kHz update rate using CTU-triggered dual ADCs and hardware-accelerated CRC unit. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive safety microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPC5643LFF1MLQ1 | 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; same ASIL-D safety features and peripheral set | Select when extended junction temperature range is mandated by thermal design or OEM specification. |
| SPC560P50L5CEFBR | Single e200z0 core; 512 KB flash; no FlexRay; lower ASIL-B capability; 100-pin LQFP package | Targeted at cost-sensitive body control modules-not suitable for EPS or airbag due to reduced safety scope and compute throughput | Consider only for non-safety-critical subsystems where FlexRay, dual CAN, or ASIL-D are not required. |
Compared with SPC5643LFF0MLQ1, MPC5643LFF1MLQ1 offers extended thermal margin without design change, while SPC560P50L5CEFBR sacrifices safety integrity and compute capacity for cost reduction-neither is pin-compatible nor functionally interchangeable in ASIL-D systems.
Availability
SPC5643LFF0MLQ1 is available at Aetrix Electronics and suitable for electric power steering (EPS), airbag control units, brake-by-wire systems, and other automotive safety-critical applications requiring stable component supply across long production lifecycles.
Supply support for SPC5643LFF0MLQ1 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 specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with leadership in automotive MCUs and radar technology.
The SPC5643LFF0MLQ1 belongs to NXP's SPC56x automotive microcontroller family, designed specifically for ASIL-D functional safety applications in electric power steering, airbag, and chassis control systems.
FAQ
What safety certifications does the SPC5643LFF0MLQ1 support?
The SPC5643LFF0MLQ1 supports ISO 26262 ASIL-D compliance through hardware-level safety mechanisms including lockstep core replication, FCCU, MBIST/LBIST, replicated watchdogs and temperature sensors, and 16-region MPU. It is qualified per AEC-Q100 Grade 1 and supports safety manual and FMEDA documentation from NXP. The SPC5643LFF0MLQ1 enables full ASIL-D decomposition in system-level safety architectures.
Does the SPC5643LFF0MLQ1 support FlexRay communication?
Yes, the SPC5643LFF0MLQ1 integrates a full FlexRay v2.1 module with two independent channels, 64 message buffers, and data rates up to 10 Mbit/s. It includes built-in bus guardian logic, protocol controller, and hardware CRC for deterministic, time-triggered communication essential for x-by-wire systems. The SPC5643LFF0MLQ1 FlexRay interface operates independently of CAN and LIN buses.
What is the memory configuration of the SPC5643LFF0MLQ1?
The SPC5643LFF0MLQ1 contains 1 MB of on-chip flash memory with ECC and Read-While-Write capability, plus 128 KB of SRAM also protected with ECC. Both memories support hardware error correction (1-bit fix / 2-bit detect) and cover address paths for comprehensive fault coverage. The SPC5643LFF0MLQ1 uses these resources for ASIL-D code execution, safety monitor tasks, and EEPROM emulation in designated flash partitions.
Can the SPC5643LFF0MLQ1 operate in decoupled mode?
Yes, the SPC5643LFF0MLQ1 supports both lockstep and decoupled parallel operation modes for its dual e200z4d cores. In decoupled mode, cores execute independent tasks with shared memory access via the crossbar switch-ideal for high-throughput applications like sensor fusion or motor control pre-processing. The SPC5643LFF0MLQ1 retains full safety monitoring even in decoupled mode via replicated peripherals and FCCU supervision.
What package type and dimensions does the SPC5643LFF0MLQ1 use?
The SPC5643LFF0MLQ1 uses a 257-ball MAPBGA package measuring 14 mm × 14 mm × 0.8 mm. This package supports fine-pitch routing, thermal dissipation for automotive under-hood environments, and compatibility with standard PCB assembly processes. The SPC5643LFF0MLQ1 pinout is defined in NXP's MPC5643L datasheet Rev. 10, Section 2.1, and includes dedicated power, ground, clock, and functional I/O banks.
SPC5643LFF0MLQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 144-LQFP
- Series:
- MPC56xx Qorivva
- Packaging:
- Tray
- Product Status:
- Obsolete
- 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:
SPC5643LFF0MLQ1 FAQ
1.How can I place an order for SPC5643LFF0MLQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC5643LFF0MLQ1 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 SPC5643LFF0MLQ1 reliable?
The price and inventory of SPC5643LFF0MLQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC5643LFF0MLQ1 is usually 5 days.
3.What payment methods are accepted for SPC5643LFF0MLQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC5643LFF0MLQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC5643LFF0MLQ1?
SPC5643LFF0MLQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC5643LFF0MLQ1 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 SPC5643LFF0MLQ1?
For technical support, including SPC5643LFF0MLQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC5643LFF0MLQ1 requirements.
6.How does Aetrix verify that SPC5643LFF0MLQ1 is sourced from the original manufacturer or authorized distributors?
All SPC5643LFF0MLQ1 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 SPC5643LFF0MLQ1 meets industry standards.
7.What is the process for return or replacement of SPC5643LFF0MLQ1?
All SPC5643LFF0MLQ1 units undergo pre-shipment inspection (PSI). If there is an issue with SPC5643LFF0MLQ1, 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 SPC5643LFF0MLQ1 part is unused and in its original packaging.
Return procedure for SPC5643LFF0MLQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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