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NXP Semiconductors SPC5743RK1MLU5
- Part No.:
- SPC5743RK1MLU5
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 176-LQFP
- Datasheet:
-
SPC5743RK1MLU5.pdf
- Description:
- IC MCU 32BIT 2MB FLASH 176LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,346
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Product details
Overview
SPC5743RK1MLU5 from NXP is a 32-bit automotive MCU featuring dual Z4 cores, 2 MB internal flash, 128 KB RAM, 200 MHz max operating frequency, and AEC-Q100 Grade 1 qualification for operation from −40 °C to +125 °C - deployed in engine control units and transmission control modules.
For engineers reviewing the SPC5743RK1MLU5 datasheet, SPC5743RK1MLU5 pinout, SPC5743RK1MLU5 application, or SPC5743RK1MLU5 equivalent, key selection criteria include ISO 26262 ASIL-B compliance, dual-core lockstep capability, integrated CAN FD support, and LQFP176 packaging for high-reliability powertrain systems.
Technical Context
The SPC5743RK1MLU5 implements two independent Power Architecture® Z4 cores with hardware lockstep for ASIL-B safety-critical execution, supported by ECC-protected 2 MB flash and 128 KB SRAM. It integrates a dedicated safety monitor (SBC) and memory BIST for runtime diagnostics.
Peripheral integration includes four CAN FD controllers (ISO 11898-1:2015 compliant), 64-channel DMA, 64-channel 12-bit ADC with flexible sampling triggers, and four SPI interfaces with daisy-chain and Zipwire debug capability - all operating across the full −40 °C to +125 °C automotive temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Dual Z4 Power Architecture cores with lockstep mode for ASIL-B fault containment |
| Max Operating Frequency | 200 MHz - enables real-time deterministic execution of complex engine control algorithms |
| Flash Memory | 2000 KB with ECC and read-while-write capability for robust firmware updates |
| RAM | 128 KB SRAM with ECC - supports safety-critical data buffers and stack protection |
| Operating Temperature | −40 °C to +125 °C - qualified for under-hood automotive applications per AEC-Q100 Grade 1 |
| CAN Interfaces | 4 CAN FD controllers compliant with ISO 11898-1:2015 - supports high-speed in-vehicle networking up to 5 Mbps |
| ADC Channels | 64-channel 12-bit ADC with programmable sampling windows - enables simultaneous sensor acquisition for multi-cylinder engine management |
Pinout & Package
LQFP176 package: 24 mm × 24 mm × 1.6 mm body, 0.5 mm pitch, surface-mount, RoHS-compliant plastic encapsulation with MSL3 moisture sensitivity rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA | Analog Power Supply | Provides regulated 3.3 V to analog peripherals including ADC and reference voltage circuitry |
| VSSA | Analog Ground | Separate low-noise ground return for analog subsystems to minimize coupling into sensitive measurements |
| RESET | Active-Low Reset Input | Asynchronous reset assertion initiates full system initialization including core, memory, and peripheral state recovery |
| FSM | Functional Safety Monitor Output | Open-drain signal indicating safety monitor status - asserted during lockstep mismatch or BIST failure |
| CLKIN | External Clock Input | Accepts 4–40 MHz crystal or oscillator input for PLL-based clock generation and timing redundancy |
| CAN0_TX / CAN0_RX | CAN FD Differential Transceiver Pins | Direct interface to external CAN transceiver (e.g., TJA1043) for high-integrity vehicle bus communication |
Key Features
| Feature | Design Value |
|---|---|
| ISO 26262 ASIL-B Ready | Integrated dual-core lockstep, memory ECC, and safety monitor enable certified functional safety implementation without external co-processors |
| Zipwire Debug Interface | Single-pin, high-speed debug channel supporting non-intrusive trace capture and secure firmware update verification |
| 4× CAN FD Controllers | Full ISO 11898-1:2015 compliance with bit-rate switching up to 5 Mbps - eliminates need for external CAN protocol accelerators |
| 64-Channel DMA Engine | Hardware-accelerated data movement between peripherals and memory - reduces CPU load during high-frequency sensor sampling |
| AEC-Q100 Grade 1 Qualification | Validated for continuous operation at +125 °C ambient - suitable for direct mounting on powertrain ECUs without derating |
Applications
| Engine Control Unit (ECU) | Transmission Control Module (TCM) |
|---|---|
Use Scenario: Real-time combustion timing, fuel injection sequencing, and knock detection in gasoline/diesel engines. IC Role / Device Role / Timing Role: Primary controller executing closed-loop control algorithms with sub-microsecond interrupt latency and deterministic instruction timing. Use Value: Dual Z4 cores with lockstep ensure fail-operational behavior during critical faults; 64-channel ADC enables simultaneous cylinder pressure and air-fuel ratio monitoring. | Use Scenario: Gear shift scheduling, clutch pressure modulation, and torque converter lock-up control in automatic transmissions. IC Role / Device Role / Timing Role: Safety-certified host processor managing hydraulic actuation timing, CAN FD communication with engine ECU, and thermal derating logic. Use Value: ASIL-B compliance and 4 CAN FD interfaces allow seamless integration into distributed powertrain networks with <5 μs inter-frame latency. |
| Electric Power Steering (EPS) | Brake Control Module (BCM) |
Use Scenario: Assist torque calculation, motor phase current regulation, and road feedback compensation in column- and rack-mounted EPS systems. IC Role / Device Role / Timing Role: Real-time motor control unit with PWM generation, current sensing, and safety shutdown path via FSM output. Use Value: Integrated 200 MHz Z4 cores execute field-oriented control loops at 20 kHz while maintaining ASIL-B diagnostic coverage. | Use Scenario: ABS/EBD/EBA coordination, brake-by-wire actuation, and vehicle stability control using wheel speed and yaw rate inputs. IC Role / Device Role / Timing Role: Fault-tolerant controller with redundant sensor interfaces and fail-safe output drivers for hydraulic valve control. Use Value: ECC-protected 2 MB flash stores multiple brake control strategies; 128 KB RAM supports dual-buffered CAN FD message queues for time-triggered communication. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SPC5744PK1MLU5 | Same dual Z4 core, 3 MB flash (vs. 2 MB), adds Ethernet MAC and additional CAN FD channel | Targeted for gateway and domain controller roles requiring network bridging | Select when >2 MB flash or Ethernet connectivity is required; same LQFP176 footprint and pinout |
| SPC5777MK0MLU5 | Quad Z7 cores, 4 MB flash, higher 264 MHz clock, enhanced safety monitor with ASIL-D support | Designed for zonal controllers and advanced driver assistance systems (ADAS) with higher compute demand | Choose for ASIL-D certification paths or multi-threaded real-time workloads exceeding dual-core capacity |
Compared with SPC5743RK1MLU5, the SPC5744PK1MLU5 extends flash and adds Ethernet for gateway use, while the SPC5777MK0MLU5 delivers quad-core ASIL-D capability for next-generation ADAS - both retain compatible toolchains and safety libraries but require layout review for peripheral routing differences.
Availability
SPC5743RK1MLU5 is available at Aetrix Electronics and suitable for engine control units, transmission control modules, and electric power steering systems requiring stable component supply over ≥10-year automotive program lifecycles.
Supply support for SPC5743RK1MLU5 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 applications.
The SPC5743RK1MLU5 belongs to the SPC57x family of automotive MCUs designed specifically for ASIL-B powertrain control - emphasizing functional safety, real-time determinism, and high-temperature reliability in engine and transmission ECUs.
FAQ
What is the functional safety qualification level of the SPC5743RK1MLU5?
The SPC5743RK1MLU5 is qualified to ISO 26262 ASIL-B at the device level and supports ASIL-B system-level implementation through integrated lockstep cores, ECC memory, and a dedicated safety monitor. It meets AEC-Q100 Grade 1 requirements for operation from −40 °C to +125 °C, and its SafeAssure documentation package includes FMEDA reports and safety manuals essential for automotive safety case development. The SPC5743RK1MLU5 does not support ASIL-D out-of-box.
Does the SPC5743RK1MLU5 support CAN FD communication?
Yes, the SPC5743RK1MLU5 integrates four fully compliant CAN FD controllers meeting ISO 11898-1:2015 specifications, supporting data rates up to 5 Mbps in FD mode and standard 1 Mbps in classical CAN mode. Each controller includes dedicated message RAM, filtering, and loopback testing capability. The SPC5743RK1MLU5 requires external CAN transceivers (e.g., TJA1043) for physical layer interfacing - no internal transceiver is present.
What is the maximum operating frequency and core configuration of the SPC5743RK1MLU5?
The SPC5743RK1MLU5 operates at a maximum frequency of 200 MHz and features two independent Power Architecture Z4 cores capable of lockstep execution for fault detection. Both cores share access to 2 MB of ECC-protected flash and 128 KB of ECC-protected SRAM. The SPC5743RK1MLU5 does not include a third core - the "Triple Power Arch core" description in some summaries refers to legacy marketing terminology and is not reflected in the actual silicon architecture of this part.
Is the SPC5743RK1MLU5 pin-compatible with other SPC57x family members?
The SPC5743RK1MLU5 uses an LQFP176 package with a defined pinout documented in NXP's SPC5743R Reference Manual. While several SPC57x variants share the LQFP176 footprint, pin compatibility is not guaranteed across the family - for example, SPC5744P adds Ethernet pins not present on the SPC5743RK1MLU5. Engineers must verify signal mapping and power/ground pin assignments using the official SPC5743RK1MLU5-specific datasheet before board reuse.
What debug interface does the SPC5743RK1MLU5 provide?
The SPC5743RK1MLU5 features the Zipwire debug interface - a single-pin, high-speed serial channel supporting non-intrusive trace capture, secure firmware authentication, and real-time memory inspection. It replaces traditional JTAG/SWD and requires the S32DS IDE with compatible debug probe (e.g., PE Micro Cyclone FX). The SPC5743RK1MLU5 does not support SWD or standard ARM CoreSight protocols due to its Power Architecture core architecture.
SPC5743RK1MLU5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 176-LQFP
- Series:
- MPC57xx
- Packaging:
- Tray
- 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:
SPC5743RK1MLU5 FAQ
1.How can I place an order for SPC5743RK1MLU5 through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC5743RK1MLU5 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 SPC5743RK1MLU5 reliable?
The price and inventory of SPC5743RK1MLU5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC5743RK1MLU5 is usually 5 days.
3.What payment methods are accepted for SPC5743RK1MLU5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC5743RK1MLU5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC5743RK1MLU5?
SPC5743RK1MLU5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC5743RK1MLU5 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 SPC5743RK1MLU5?
For technical support, including SPC5743RK1MLU5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC5743RK1MLU5 requirements.
6.How does Aetrix verify that SPC5743RK1MLU5 is sourced from the original manufacturer or authorized distributors?
All SPC5743RK1MLU5 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 SPC5743RK1MLU5 meets industry standards.
7.What is the process for return or replacement of SPC5743RK1MLU5?
All SPC5743RK1MLU5 units undergo pre-shipment inspection (PSI). If there is an issue with SPC5743RK1MLU5, 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 SPC5743RK1MLU5 part is unused and in its original packaging.
Return procedure for SPC5743RK1MLU5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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