My Inquiry
My Account
NXP Semiconductors SPC5643LFF0MLQ8
- Part No.:
- SPC5643LFF0MLQ8
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
SPC5643LFF0MLQ8.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,006
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SPC5643LFF0MLQ8 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/ASIL-D functional safety via FCCU, RCCU, and replicated peripherals. It is deployed in electric power steering (EPS), airbag control units, and EHPS systems.
For engineers reviewing the SPC5643LFF0MLQ8 datasheet, SPC5643LFF0MLQ8 pinout, SPC5643LFF0MLQ8 application, or SPC5643LFF0MLQ8 equivalent, key selection criteria include dual-core lockstep validation, FMPLL clocking architecture, FlexRay v2.1 dual-channel support, 12-bit dual ADC with CTU synchronization, and ISO 26262-compliant safety mechanisms including MBIST/LBIST and replicated watchdogs.
Technical Context
The SPC5643LFF0MLQ8 implements two identical e200z4d cores with Harvard architecture, dual-issue 5-stage pipelines, VLE instruction set, and integrated SPE for signal processing. Memory subsystem includes replicated crossbar switch (4 masters × 3 slaves), ECC-protected flash and SRAM, and dedicated platform controllers (SRAMC, FMPLLC, ECSM) per core domain.
Safety architecture centers on Sphere of Replication (SoR) covering CPU, eDMA, XBAR, and peripheral bridges, with Fault Collection and Control Unit (FCCU) aggregating errors from replicated modules including temperature sensors, watchdogs, and clock monitors. Boot-time MBIST/LBIST and software-triggered ADC/flash BIST provide deterministic fault coverage aligned with ASIL-D requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | e200z4d dual-core Power Architecture®, supporting LockStep (ASIL-D) and Decoupled Parallel (high-performance) operation |
| Clock Frequency | Up to 120 MHz system clock with ±2% frequency modulation; FMPLL + internal 16 MHz RC oscillator + external 4–40 MHz crystal |
| Memory | 1 MB on-chip flash with ECC and RWW; 128 KB SRAM with ECC; 16-region MPU for memory protection |
| Safety Features | Replicated FCCU, RCCU, NMI, CTU, SWG, TSENS; boot-time MBIST/LBIST; software-triggered ADC/flash BIST |
| Peripherals | FlexRay v2.1 (2 channels, 64 buffers), 2× FlexCAN 2.0B (32 message objects each), 3× DSPI, 2× LINFlexD, 3× eTimer (6 ch), 2× FlexPWM (4 ch/module) |
| Analog | Two independent 12-bit ADCs (16 inputs total), programmable CTU for cross-triggering with timers/PWM, sine wave generator (SWG) |
| Supply & Temp | Single 3.0–3.6 V supply; ambient operating range –40 °C to +125 °C; junction range –40 °C to +150 °C |
Pinout & Package
SPC5643LFF0MLQ8 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 standardized MPC5643L ball map with dedicated supply, ground, I/O, and safety-critical signal groups.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_MAIN / VDD_IO | Main power supply | 3.0–3.6 V core/I/O rail; decoupling required per NXP layout guidelines to meet EMC and transient immunity specs |
| VSS | Ground reference | Multiple dedicated ground balls; must be connected to low-impedance PCB ground plane for noise immunity and thermal dissipation |
| RESET_IN | Asynchronous reset input | Active-low, Schmitt-triggered; initiates hardware reset sequence including FCCU state initialization and safety register clearing |
| CLKIN / XOSC | External clock input | Accepts 4–40 MHz crystal or CMOS clock; feeds FMPLL for system clock generation and jitter-sensitive peripherals |
| NEXUS_TDI / TDO / TCK / TMS | JTAG/Nexus debug interface | Class 3+ Nexus port supporting real-time trace, non-intrusive debugging, and safety-critical runtime monitoring |
| FLEXRAY_CH0_TX / RX | FlexRay channel 0 differential pair | High-speed (up to 10 Mbit/s), fail-safe bus interface compliant with FlexRay v2.1 Rev. A; requires matched 100 Ω differential routing |
Key Features
| Feature | Design Value |
|---|---|
| Dual e200z4d cores with LockStep | Hardware-enforced instruction-level redundancy for ASIL-D compliance; automatic fault detection and error signaling via FCCU |
| Replicated safety peripherals | FCCU, RCCU, SWG, TSENS, and CTU duplicated across both cores - enables cross-checking and fault containment without software overhead |
| On-chip ECC memory subsystem | 1-bit correction / 2-bit detection on 1 MB flash and 128 KB SRAM; ECC logic covers data + address paths for full diagnostic coverage |
| FlexRay v2.1 dual-channel | 64 message buffers, 10 Mbit/s data rate, dynamic segment support - meets automotive time-triggered network requirements for steer-by-wire and brake control |
| CTU-synchronized ADC conversion | Programmable cross-triggering unit coordinates ADC sampling with eTimer/FlexPWM events - eliminates software latency in motor control loops |
Applications
| Electric Power Steering (EPS) | Airbag Control Unit (ACU) |
|---|---|
|
Use Scenario: Real-time torque assist calculation, motor position feedback, and fault-tolerant actuation in column-assist and rack-assist EPS systems. IC Role / Device Role / Timing Role: Primary safety controller executing ASIL-D motor control algorithms with lockstep core verification and redundant sensor interface handling. Use Value: Dual-core LockStep ensures deterministic execution; FlexPWM + CTU-synchronized ADC enables <1 µs current loop timing; FCCU reports faults within 10 µs for safe torque reduction. |
Use Scenario: Multi-sensor crash detection, pyro fuse triggering, and occupant classification using accelerometers, pressure sensors, and seat occupancy signals. IC Role / Device Role / Timing Role: Central safety MCU managing SIL3/ASIL-D decision logic, with replicated watchdogs and boot-time MBIST validating memory integrity before deployment. Use Value: Replicated TSENS and NMI enable immediate thermal/fault escalation; 2× FlexCAN interfaces handle airbag ECU communication and diagnostics without arbitration delay. |
| Electro-Hydraulic Power Steering (EHPS) | Brake-by-Wire Interface Module |
|
Use Scenario: Closed-loop hydraulic pressure control, valve driver management, and CAN-based coordination with vehicle stability systems. IC Role / Device Role / Timing Role: High-integrity controller interfacing with analog pressure sensors, PWM-driven solenoid valves, and FlexRay backbone for time-triggered actuation. Use Value: FlexRay v2.1 dual-channel provides deterministic 10 Mbit/s communication; eTimer + SWG generate precise sinusoidal test signals for valve diagnostics. |
Use Scenario: Redundant brake command arbitration, pedal position monitoring, and fail-operational handover between primary and backup braking paths. IC Role / Device Role / Timing Role: Safety-critical gateway coordinating FlexRay (actuation), FlexCAN (diagnostics), and DSPI (sensor fusion) with synchronized timestamping. Use Value: Crossbar-switched memory access ensures zero-wait-state ADC reads during critical braking events; replicated INTC guarantees <2 µs interrupt latency for emergency stop requests. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive safety microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPC5643LFF1MLQ8 | 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 per AEC-Q100 Grade 0 | Select when ambient exceeds 125 °C or long-term reliability at elevated junction temperatures is mandated. |
| SPC56EL70L5 | e200z7 core (higher DMIPS), 2 MB flash, no FlexRay; supports ASIL-D but uses different safety architecture (no SoR replication) | Targeted at gateway ECUs and domain controllers where FlexRay is unnecessary but higher compute throughput is needed | Choose for non-FlexRay applications requiring >240 DMIPS and larger code space; not drop-in compatible due to peripheral and safety model differences. |
Compared with SPC5643LFF0MLQ8, MPC5643LFF1MLQ8 offers identical functionality with extended thermal qualification, while SPC56EL70L5 trades FlexRay and lockstep replication for higher single-thread performance and memory - making it suitable for gateway roles but unsuitable for time-triggered steer/brake control.
Availability
SPC5643LFF0MLQ8 is available at Aetrix Electronics and suitable for electric power steering (EPS), airbag control units (ACU), and electro-hydraulic power steering (EHPS) requiring stable component supply, long lifecycle support, and automotive-grade traceability.
Supply support for SPC5643LFF0MLQ8 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 SPC5643LFF0MLQ8 belongs to NXP's SPC56 family of automotive MCUs, designed specifically for ASIL-D safety-critical functions in steering, braking, and restraint systems - emphasizing hardware-redundant architectures and ISO 26262-aligned development processes.
FAQ
What is the package type and footprint for SPC5643LFF0MLQ8?
SPC5643LFF0MLQ8 uses a 257-ball MAPBGA package measuring 14 mm × 14 mm × 0.8 mm. The ball pitch is 0.8 mm, and the package conforms to JEDEC MO-279A. Layout requires strict adherence to NXP's thermal pad grounding, power plane segmentation, and differential FlexRay routing rules to ensure signal integrity and thermal performance in automotive environments. SPC5643LFF0MLQ8 does not support LQFP variants - only MAPBGA.
Does SPC5643LFF0MLQ8 support ISO 26262 ASIL-D certification out of the box?
SPC5643LFF0MLQ8 implements hardware-level safety mechanisms required for ASIL-D, including LockStep dual-core execution, replicated FCCU/RCCU, boot-time MBIST/LBIST, and ECC-protected memories. However, full ASIL-D compliance depends on system-level integration, safety software stack (e.g., SafeTcore), and certified toolchain usage. NXP provides the Safety Application Guide for MPC5643L to support functional safety development - SPC5643LFF0MLQ8 is the foundation, not a certified subsystem.
Can SPC5643LFF0MLQ8 operate without an external crystal?
Yes, SPC5643LFF0MLQ8 can operate using its internal 16 MHz RC oscillator for startup and low-speed operation, but this oscillator lacks the stability and accuracy required for FlexRay, CAN FD, or high-precision ADC sampling. For full specification compliance - especially FlexRay v2.1 timing, FMPLL lock, and ISO 26262 clock monitoring - an external 4–40 MHz crystal connected to CLKIN/XOSC pins is mandatory. SPC5643LFF0MLQ8's CMU continuously validates crystal presence and stability.
What debug interface does SPC5643LFF0MLQ8 use, and is JTAG sufficient for safety analysis?
SPC5643LFF0MLQ8 features a Nexus Class 3+ debug port supporting real-time trace, non-intrusive breakpoints, and safety-critical runtime monitoring - far beyond basic JTAG. While IEEE 1149.1 JTAG is present for boundary scan and programming, Nexus enables instruction-level lockstep verification, memory access tracing, and FCCU event capture essential for ASIL-D validation. SPC5643LFF0MLQ8 requires Nexus-capable tools (e.g., Lauterbach TRACE32) for full safety analysis.
How does the Crossbar Switch (XBAR) in SPC5643LFF0MLQ8 improve real-time determinism?
The replicated XBAR in SPC5643LFF0MLQ8 provides four concurrent master-to-slave transactions (e.g., CPU fetch, eDMA transfer, FlexRay write, ADC read) with programmable priority arbitration. This eliminates bus contention bottlenecks common in single-bus architectures, ensuring predictable latency for time-critical operations like FlexPWM updates or CTU-synchronized ADC sampling. Each SPC5643LFF0MLQ8 core has its own XBAR instance, enabling true parallel memory access without software-managed arbitration delays.
SPC5643LFF0MLQ8 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:
- 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:
SPC5643LFF0MLQ8 FAQ
1.How can I place an order for SPC5643LFF0MLQ8 through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC5643LFF0MLQ8 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 SPC5643LFF0MLQ8 reliable?
The price and inventory of SPC5643LFF0MLQ8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC5643LFF0MLQ8 is usually 5 days.
3.What payment methods are accepted for SPC5643LFF0MLQ8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC5643LFF0MLQ8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC5643LFF0MLQ8?
SPC5643LFF0MLQ8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC5643LFF0MLQ8 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 SPC5643LFF0MLQ8?
For technical support, including SPC5643LFF0MLQ8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC5643LFF0MLQ8 requirements.
6.How does Aetrix verify that SPC5643LFF0MLQ8 is sourced from the original manufacturer or authorized distributors?
All SPC5643LFF0MLQ8 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 SPC5643LFF0MLQ8 meets industry standards.
7.What is the process for return or replacement of SPC5643LFF0MLQ8?
All SPC5643LFF0MLQ8 units undergo pre-shipment inspection (PSI). If there is an issue with SPC5643LFF0MLQ8, 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 SPC5643LFF0MLQ8 part is unused and in its original packaging.
Return procedure for SPC5643LFF0MLQ8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SPC5643LFF0MLQ8 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…
