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NXP Semiconductors SPC5743RK1MLQ5R
- Part No.:
- SPC5743RK1MLQ5R
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
SPC5743RK1MLQ5R.pdf
- Description:
- IC MCU 32BIT 2MB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,441
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Product details
Overview
SPC5743RK1MLQ5R from NXP is an automotive-grade 32-bit Power Architecture® microcontroller with dual e200z4 cores in lockstep, operating up to 200 MHz, 2 MB flash, 256 KB RAM, and AEC-Q100 Grade 1 qualification (−40°C to +125°C). It integrates FlexCAN, FlexRay, LINFlexD, SENT, DSPI, SIPI/LFAST, Ethernet, and safety features for ASIL D–compliant motor control in electric power steering systems.
For engineers reviewing the SPC5743RK1MLQ5R datasheet, SPC5743RK1MLQ5R pinout, SPC5743RK1MLQ5R application, or SPC5743RK1MLQ5R equivalent, key selection criteria include dual-core lockstep execution, 2 MB flash with ECC, FlexRay dual-channel support, functional safety architecture per ISO 26262, and 144-pin LQFP packaging for high-integration automotive domain controllers.
Technical Context
The SPC5743RK1MLQ5R implements two e200z4 cores in delayed lockstep with shared instruction fetch and independent execution paths, enabling real-time fault detection. It includes a Safety Lake subsystem with FCCU, LBIST/MBIST, ADC self-test, and end-to-end ECC across flash, SRAM, and crossbar switch.
Its communication suite supports concurrent operation of 3 FlexCAN modules, 2 FlexRay channels, 4 SENT receivers, 4 DSPI interfaces, and 2 LINFlexD UARTs - all with dedicated DMA channels and safety-aware register protection. The device uses VLE encoding and includes S-FPU for deterministic floating-point computation in motor control loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Dual e200z4 Power Architecture cores in hardware lockstep for ASIL D compliance |
| Max Clock Speed | 200 MHz - enables real-time execution of EPS torque calculation and fail-safe monitoring within ≤50 µs loop time |
| Flash Memory | 2 MB with ECC - stores primary application, safety monitor, and boot firmware with error correction |
| SRAM | 256 KB with ECC - holds runtime variables, control state, and safety-critical buffers |
| Operating Temp | −40°C to +125°C - qualified for under-hood automotive environments per AEC-Q100 Grade 1 |
| Supply Voltage | 3.15 V to 5.5 V - compatible with 5 V automotive battery rail and regulated 3.3 V domains |
| Safety Certification | ISO 26262 ASIL D ready - includes lockstep core, eDMA, peripheral duplication, and FCCU-based fault containment |
Pinout & Package
SPC5743RK1MLQ5R is housed in a 144-pin LQFP package (16 × 16 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per NXP reference schematic MPC574xP-RDB and datasheet revision 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_IO_0 | I/O supply rail | Provides 3.3 V power to GPIO banks 0–3; requires local decoupling for EMC robustness |
| VRH | Analog reference high | Reference voltage input for 4× 12-bit ADC modules; tied to 3.3 V with low-noise filtering |
| FRAY_A_TX | FlexRay channel A transmit | Differential output driving external FlexRay transceiver (e.g., TJA1080); supports 10 Mbps bus rate |
| CAN0_RX | FlexCAN module 0 receive | High-impedance CMOS input for CAN physical layer signal; integrated RX filter reduces EMI susceptibility |
| ETM_TRACESCLK | Nexus trace clock | Outputs synchronous trace clock for real-time debugging via Lauterbach TRACE32 or iSystem winIDEA |
| RESET_IN | External reset input | Asynchronous active-low reset pin; sampled synchronously to avoid metastability in safety monitor logic |
Key Features
| Feature | Design Value |
|---|---|
| Dual e200z4 lockstep cores | Hardware-level instruction comparison ensures immediate core divergence detection for ASIL D fault handling |
| End-to-end ECC on flash & SRAM | Corrects single-bit errors and detects double-bit errors across memory subsystems without software overhead |
| Dual-channel FlexRay controller | Enables time-triggered communication for safety-critical chassis networks with guaranteed latency and determinism |
| 4× 12-bit ADC with 16-channel mux | Simultaneous sampling of motor phase currents and position sensors with <1 µs conversion time per channel |
| FCCU with configurable fault response | Centralized fault collection unit triggers safe state entry (e.g., PWM shutdown, CAN silent mode) within 3 cycles |
Applications
| Electric Power Steering (EPS) | Airbag System Control |
|---|---|
Use Scenario: Real-time torque assist calculation, motor current regulation, and fail-safe torque limitation during steering actuation. IC Role / Device Role / Timing Role: Primary domain controller executing ASIL D–compliant motor control algorithms with lockstep core verification. Use Value: Meets <50 µs torque-loop timing budget while maintaining dual-core fault coverage and FlexRay-based vehicle network synchronization. | Use Scenario: Sensor fusion from accelerometers, pressure sensors, and seat occupancy detectors to trigger airbag deployment decisions. IC Role / Device Role / Timing Role: Safety monitor MCU validating sensor integrity and executing diagnostic routines prior to pyro firing command. Use Value: Leverages built-in ADC self-test, ECC-protected SRAM for fault-tolerant decision history, and FCCU-driven safe state activation. |
| Safety Motor Controller | Adaptive Cruise Control (ACC) Actuator |
Use Scenario: Closed-loop control of high-voltage DC-DC converters or 48 V starter-generator systems with functional safety requirements. IC Role / Device Role / Timing Role: Dual-core safety controller managing power stage gate drivers, current sensing, and thermal monitoring. Use Value: Uses FlexPWM with dead-time insertion and eTimer-based overcurrent capture to meet ISO 26262 hardware fault tolerance metrics. | Use Scenario: Coordination of radar data parsing, throttle/brake actuation signals, and vehicle-to-vehicle messaging in ACC host ECU. IC Role / Device Role / Timing Role: Domain controller interfacing radar SoC via DSPI and actuating brake-by-wire modules via FlexCAN/FlexRay. Use Value: Supports concurrent SENT inputs from wheel speed sensors and LINFlexD links to HVAC and instrument cluster for system-wide coordination. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive safety microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SPC5744P | 2.5 MB flash, 384 KB RAM, same 144 LQFP package and core architecture | Supports larger safety monitor firmware and extended diagnostic logs in EPS systems requiring longer fault history retention | Select when additional nonvolatile storage is needed for ASIL D-compliant event logging without changing PCB layout |
| TC397XP-160F300N AC | TriCore™ architecture, 300 MHz, 8 MB flash, 8 MB RAM, 292-pin BGA | Targets higher-complexity ADAS domain controllers with AUTOSAR Classic/Adaptive integration and multi-core scheduling | Choose for next-generation platforms needing scalable compute, but expect full hardware redesign due to BGA footprint and toolchain migration |
Compared with SPC5743RK1MLQ5R, SPC5744P offers higher memory capacity in identical packaging for incremental feature upgrades, while TC397XP demands board-level rework but delivers significantly greater processing headroom for evolving ADAS workloads.
Availability
SPC5743RK1MLQ5R is available at Aetrix Electronics and suitable for electric power steering, airbag control, and safety motor controller applications requiring stable component supply across automotive production lifecycles.
Supply support for SPC5743RK1MLQ5R 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 markets.
The MPC574xP product line delivers ASIL D–ready Power Architecture MCUs optimized for safety-critical automotive domain controllers including EPS, braking, and airbag systems.
FAQ
What is the maximum ambient operating temperature for SPC5743RK1MLQ5R?
The SPC5743RK1MLQ5R is qualified per AEC-Q100 Grade 1 with a maximum ambient operating temperature of +125°C. This rating applies to the full 144-pin LQFP package variant and is validated across all operating voltages and clock frequencies. Thermal derating is not required below this limit, and the device maintains full functional safety features including lockstep core monitoring and ECC memory operation throughout the specified range. SPC5743RK1MLQ5R supports under-hood deployment in EPS and brake control modules without forced cooling.
Does SPC5743RK1MLQ5R support FlexRay communication?
Yes, SPC5743RK1MLQ5R integrates a dual-channel FlexRay controller compliant with FlexRay v2.1 specification. Both channels operate independently with configurable baud rates up to 10 Mbps and support time-triggered communication with guaranteed latency. The implementation includes dedicated message RAM, cycle counter, and clock synchronization logic - all covered by end-to-end ECC and monitored by the FCCU. SPC5743RK1MLQ5R uses these channels for safety-critical chassis networking in applications like adaptive cruise control and active suspension.
What safety certifications does SPC5743RK1MLQ5R target?
SPC5743RK1MLQ5R is designed to support ISO 26262 ASIL D and IEC 61508 SIL3 compliance. Its safety mechanisms include dual e200z4 cores in lockstep, duplicate peripheral instances (e.g., dual eTimer, dual FlexPWM), end-to-end ECC on flash and SRAM, LBIST/MBIST, ADC self-test, and FCCU-based fault containment. NXP provides certified safety documentation including FMEDA reports and safety manuals. SPC5743RK1MLQ5R achieves ASIL D decomposition through hardware redundancy and architectural partitioning verified in the MPC574xPFS document rev 3.
How much flash memory does SPC5743RK1MLQ5R have, and is it ECC-protected?
SPC5743RK1MLQ5R contains 2 MB of on-chip flash memory, fully protected by end-to-end ECC covering both address and data paths. Single-bit errors are corrected automatically during read operations; double-bit errors are detected and reported via the FCCU. This ECC implementation meets ASIL D requirements for memory integrity and is enabled at power-on reset without software configuration. The flash is partitioned into secure and non-secure regions, and SPC5743RK1MLQ5R supports field firmware updates with rollback protection using dedicated boot ROM routines.
Which development tools are supported for SPC5743RK1MLQ5R firmware development?
SPC5743RK1MLQ5R supports Green Hills MULTI and Wind River Workbench IDEs with Power Architecture® compiler toolchains. Debugging is enabled via Nexus Class 3+ interface using Lauterbach TRACE32, iSystem winIDEA, or PLS UDE. NXP provides SPC5743RK1MLQ5R-specific evaluation boards including the MPC574xP-RDB reference design with daughter cards for FlexRay, CAN FD, and motor control. Runtime software includes SPC5743RK1MLQ5R-optimized Flash and EEPROM drivers, SafeAssure safety libraries, and AUTOSAR MCAL 4.3 compliant drivers.
SPC5743RK1MLQ5R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 144-LQFP
- Series:
- MPC57xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- e200z4
- Core Size:
- 32-Bit Dual-Core
- Speed:
- 200MHz
- Connectivity:
- CANbus, Ethernet, I2C, LINbus, SCI, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, Zipwire
- Number of I/O:
- -
- Program Memory Size:
- 2MB (2M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 128K x 8
- Voltage - Supply (Vcc/Vdd):
- 3.5V ~ 5.5V
- Data Converters:
- A/D 12b SAR, 16b Sigma-Delta
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
SPC5743RK1MLQ5R FAQ
1.How can I place an order for SPC5743RK1MLQ5R through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC5743RK1MLQ5R 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 SPC5743RK1MLQ5R reliable?
The price and inventory of SPC5743RK1MLQ5R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC5743RK1MLQ5R is usually 5 days.
3.What payment methods are accepted for SPC5743RK1MLQ5R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC5743RK1MLQ5R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC5743RK1MLQ5R?
SPC5743RK1MLQ5R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC5743RK1MLQ5R 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 SPC5743RK1MLQ5R?
For technical support, including SPC5743RK1MLQ5R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC5743RK1MLQ5R requirements.
6.How does Aetrix verify that SPC5743RK1MLQ5R is sourced from the original manufacturer or authorized distributors?
All SPC5743RK1MLQ5R 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 SPC5743RK1MLQ5R meets industry standards.
7.What is the process for return or replacement of SPC5743RK1MLQ5R?
All SPC5743RK1MLQ5R units undergo pre-shipment inspection (PSI). If there is an issue with SPC5743RK1MLQ5R, 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 SPC5743RK1MLQ5R part is unused and in its original packaging.
Return procedure for SPC5743RK1MLQ5R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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