My Inquiry
My Account
NXP Semiconductors SPC5643LF2MLQ8R
- Part No.:
- SPC5643LF2MLQ8R
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
SPC5643LF2MLQ8R.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,083
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SPC5643LF2MLQ8R 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 integrated FlexRay, dual FlexCAN 2.0B, and SIL3/ASILD safety architecture for lockstep operation. It targets electric power steering (EPS) and airbag control systems requiring functional safety compliance.
For engineers reviewing the SPC5643LF2MLQ8R datasheet, SPC5643LF2MLQ8R pinout, SPC5643LF2MLQ8R application, or SPC5643LF2MLQ8R equivalent, key selection criteria include dual-core lockstep validation, FMPLL clocking with ±2% modulation, 2×12-bit ADCs with cross-triggering, 257-pin MAPBGA package (14 mm × 14 mm × 0.8 mm), and FCCU/RCCU-based fault collection for ISO 26262 ASIL D decomposition.
Technical Context
The SPC5643LF2MLQ8R implements two replicated e200z4d cores supporting both LockStep mode (for ASIL D safety-critical execution) and Decoupled Parallel mode (for high-performance non-safety tasks), sharing a redundant crossbar switch with 4 master × 3 slave ports and dual-channel FlexRay (V2.1 Rev. A) supporting 10 Mbit/s data rates. Its memory subsystem integrates ECC-protected flash and SRAM with MBIST/LBIST at boot and software-triggered ADC/flash BIST.
Safety enforcement is hardware-architected via Sphere of Replication (SoR) covering CPU, eDMA, XBAR, and peripherals, backed by Fault Collection and Control Unit (FCCU), Redundancy Control and Checker Unit (RCCU), replicated watchdogs, junction temperature sensors, and 16-region MPU - all validated per ISO 26262 tool qualification requirements for automotive safety applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Dual e200z4d Power Architecture CPUs with VLE, MMU, and SPE; supports LockStep and Decoupled Parallel modes |
| Max Core Frequency | 120 MHz with ±2% frequency modulation (FMPLL); enables deterministic real-time response in EPS control loops |
| Memory | 1 MB on-chip flash with ECC and RWW; 128 KB SRAM with ECC; supports EEPROM emulation without external memory |
| Safety Certification | SIL3/ASILD-compliant architecture: SoR, FCCU, RCCU, replicated INTC/eDMA/STM/SWT, MBIST/LBIST, and NMI |
| Peripherals | 2× FlexCAN 2.0B (32 msg objects each), 2× LINFlexD, 3× DSPI, 2× FlexPWM (4×16-bit channels), 3× eTimer (6 ch each), 2× 12-bit ADC (16 ch total) |
| Package | 257-pin MAPBGA (14 mm × 14 mm × 0.8 mm); supports industrial ambient range (–40 °C to +125 °C) and 150 °C junction |
| Supply Voltage | Single 3.0 V–3.6 V supply; integrated voltage regulator eliminates need for external ballast transistor in BGA package |
Pinout & Package
SPC5643LF2MLQ8R is housed in a 257-ball MAPBGA package measuring 14 mm × 14 mm × 0.8 mm, optimized for automotive PCB layouts requiring thermal reliability and high I/O density. Pin assignments follow NXP's standardized MPC5643L ballout with dedicated supply, ground, JTAG/Nexus, FlexRay, CAN, ADC, and SIUL signal groups.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_IO_0–VDD_IO_7 | I/O Power Supply | Eight independent 3.0–3.6 V supply rails for I/O banks; enable voltage domain isolation and noise reduction across peripheral groups |
| VDDA, VSSA | Analog Supply/Ground | Dedicated analog power and ground pins for ADC reference stability; decoupling required per datasheet layout guidelines |
| VRX0, VTX0 | FlexRay Channel 0 Differential Pair | Low-jitter differential signaling interface compliant with FlexRay V2.1 Rev. A; supports 10 Mbit/s bus rate with built-in termination |
| CAN0_TX, CAN0_RX | FlexCAN 0 Transceiver Interface | Direct connection to external CAN transceiver; supports ISO 11898-2 physical layer with dominant/recessive bit timing |
| NEXUS_TDI, TDO, TMS, TCK | Nexus Class 3+ Debug Port | Real-time trace, instruction-level debugging, and safety-critical runtime monitoring; required for ISO 26262 tool chain validation |
| ADC0_IN0–ADC0_IN15 | Analog Input Channels | 16 single-ended or 8 differential inputs for first 12-bit ADC; routed through CTU for synchronized sampling with PWM or timer events |
Key Features
| Feature | Design Value |
|---|---|
| LockStep Dual-Core Execution | Hardware-enforced core synchronization with RCCU output comparison and FCCU fault reporting - meets ASIL D decomposition requirements |
| Replicated Safety Peripherals | INTC, eDMA, STM, SWT, TSENS, and MPU duplicated per channel; enables fault containment without software intervention |
| On-Chip BIST Coverage | Hardware-triggered MBIST/LBIST at boot; software-triggered ADC and flash BIST - satisfies ISO 26262 diagnostic coverage targets |
| FlexRay v2.1 Dual-Channel | 64 message buffers, 10 Mbit/s data rate, and time-triggered communication support - suitable for x-by-wire chassis control |
| Cross Triggering Unit (CTU) | Hardware-synchronized event chaining between ADC, eTimer, FlexPWM, and SWG - eliminates software latency in motor control timing |
| Integrated Voltage Regulator | On-die 3.3 V regulator with bypassable ballast transistor - reduces external component count and improves EMI performance in EPS modules |
Applications
| Electric Power Steering (EPS) | Airbag Deployment Control |
|---|---|
|
Use Scenario: Real-time torque assist calculation, motor position feedback processing, and fail-safe shutdown during collision detection. IC Role / Device Role / Timing Role: Primary safety controller executing ASIL D algorithms in LockStep mode; provides deterministic 100 µs control loop timing via FMPLL and CTU-synchronized ADC/PWM. Use Value: Eliminates need for external safety monitor IC by integrating FCCU, replicated watchdogs, and memory BIST - reducing BOM cost and board space in compact EPS ECUs. |
Use Scenario: Sensor fusion from accelerometers, pressure sensors, and seat occupancy detectors; deployment decision within <5 ms of crash onset. IC Role / Device Role / Timing Role: Central ASIL D host processor managing dual-core lockstep execution, FlexRay communication with satellite sensors, and hardware-accelerated CRC for sensor data integrity. Use Value: Achieves >99% single-point fault coverage via replicated INTC, eDMA, and MPU - satisfying ISO 26262 Part 5 QM-to-ASIL D migration requirements. |
| Brake-by-Wire Actuation | Hydraulic Power Steering (EHPS) |
|
Use Scenario: Closed-loop pressure control of electro-hydraulic brake actuators with redundancy management and thermal derating. IC Role / Device Role / Timing Role: Safety-critical actuator controller using FlexPWM outputs with dead-time insertion and replicated eTimer for precise valve timing. Use Value: Dual FlexPWM modules (available only in BGA package) deliver independent 16-bit PWM pairs with hardware fault response - enabling safe torque reduction on failure. |
Use Scenario: Motor speed regulation, pressure feedback conditioning, and CAN-based diagnostics in electric-hydraulic steering pumps. IC Role / Device Role / Timing Role: High-integration MCU handling motor control (via FlexPWM/eTimer), hydraulic sensor acquisition (via ADC/CTU), and vehicle network comms (FlexCAN/LIN). Use Value: Single-chip solution replaces multi-IC architectures - reduces interconnect complexity and improves EMC robustness in noisy under-hood environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive safety microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SPC5643LK0MLQ8R | Same die, 2 MB flash (vs. 1 MB), identical pinout and safety architecture; higher memory for complex AUTOSAR stacks | Preferred for full AUTOSAR OS + MCAL + application layer in EPS with OTA update partitioning | Select when firmware growth projection exceeds 700 KB or dual-bank flash update is required |
| MPC5744P | ARM Cortex-M4F core (vs. Power Architecture), 2 MB flash, 384 KB SRAM, ASIL D certified but different debug/peripheral IP | Used in newer chassis domain controllers where ARM ecosystem tooling and RTOS support are prioritized over legacy Power Architecture code reuse | Choose for greenfield designs targeting CMSIS-RTOS compatibility and broader third-party middleware availability |
Compared with SPC5643LF2MLQ8R, the SPC5643LK0MLQ8R offers scalable flash capacity without layout change, while the MPC5744P shifts to ARM-based development flow and larger memory - making the former ideal for incremental upgrades and the latter for new platform investments.
Availability
SPC5643LF2MLQ8R is available at Aetrix Electronics and suitable for electric power steering (EPS), airbag control units, brake-by-wire systems, and hydraulic power steering (EHPS) requiring stable component supply across automotive production lifecycles.
Supply support for SPC5643LF2MLQ8R 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 automotive, industrial, and IoT applications, delivering secure, energy-efficient, and scalable silicon solutions with deep functional safety expertise.
The SPC5643LF2MLQ8R belongs to NXP's SPC56x automotive MCU family, designed specifically for ASIL D–compliant chassis and safety-critical control applications including EPS, airbags, and active suspension systems.
FAQ
What is the qualified operating temperature range for the SPC5643LF2MLQ8R?
The SPC5643LF2MLQ8R is qualified for ambient temperatures from –40 °C to +125 °C when used with external ballast transistor in LQFP packages, and –40 °C to +125 °C in its native 257-pin MAPBGA package. Its junction temperature rating extends to +150 °C, enabling reliable operation in engine bay and transmission control environments. This specification is verified per JEDEC JESD22-A104 and JESD22-A108 standards.
Does the SPC5643LF2MLQ8R support pin-compatible replacement with other MPC5643L variants?
Yes, the SPC5643LF2MLQ8R shares identical 257-ball MAPBGA mechanical footprint and signal ballout with other MPC5643L BGA variants like SPC5643LK0MLQ8R and SPC5643LH0MLQ8R. All use the same 14 mm × 14 mm × 0.8 mm package outline, pad layout, and thermal pad configuration - enabling drop-in replacement without PCB redesign when migrating between flash size or speed grades.
How does the SPC5643LF2MLQ8R implement ASIL D compliance?
The SPC5643LF2MLQ8R achieves ASIL D compliance through hardware-replicated safety mechanisms: LockStep dual-core execution with RCCU output checking, FCCU-managed fault collection, replicated INTC/eDMA/STM/SWT, MBIST/LBIST at boot, and software-triggered ADC/flash BIST. These features are documented in NXP's Safety Application Guide for MPC5643L and certified per ISO 26262-5:2018 tool qualification reports.
What debug interfaces are supported by the SPC5643LF2MLQ8R?
The SPC5643LF2MLQ8R supports Nexus Class 3+ interface for real-time tracing, instruction-level debugging, and safety-critical runtime monitoring, plus IEEE 1149.1 JTAG for boundary scan and programming. The Nexus port delivers streaming trace data bandwidth sufficient for full-cycle visibility in 120 MHz lockstep operation - essential for ISO 26262 verification workflows.
Is the SPC5643LF2MLQ8R compatible with AUTOSAR 4.x MCAL drivers?
Yes, the SPC5643LF2MLQ8R is fully supported by NXP's AUTOSAR 4.3 MCAL stack, including drivers for FlexCAN, DSPI, ADC, eTimer, FlexPWM, and SIUL. Configuration is handled via EB tresos or Vector DaVinci tools, and the MCU's memory protection unit (MPU) and ECC-capable flash/SRAM meet AUTOSAR memory safety requirements for ASIL D partitions.
SPC5643LF2MLQ8R 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:
- 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:
SPC5643LF2MLQ8R FAQ
1.How can I place an order for SPC5643LF2MLQ8R through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC5643LF2MLQ8R 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 SPC5643LF2MLQ8R reliable?
The price and inventory of SPC5643LF2MLQ8R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC5643LF2MLQ8R is usually 5 days.
3.What payment methods are accepted for SPC5643LF2MLQ8R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC5643LF2MLQ8R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC5643LF2MLQ8R?
SPC5643LF2MLQ8R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC5643LF2MLQ8R 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 SPC5643LF2MLQ8R?
For technical support, including SPC5643LF2MLQ8R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC5643LF2MLQ8R requirements.
6.How does Aetrix verify that SPC5643LF2MLQ8R is sourced from the original manufacturer or authorized distributors?
All SPC5643LF2MLQ8R 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 SPC5643LF2MLQ8R meets industry standards.
7.What is the process for return or replacement of SPC5643LF2MLQ8R?
All SPC5643LF2MLQ8R units undergo pre-shipment inspection (PSI). If there is an issue with SPC5643LF2MLQ8R, 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 SPC5643LF2MLQ8R part is unused and in its original packaging.
Return procedure for SPC5643LF2MLQ8R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SPC5643LF2MLQ8R Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
