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NXP Semiconductors SPC5741PK1AMLQ8
- Part No.:
- SPC5741PK1AMLQ8
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
SPC5741PK1AMLQ8.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,643
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Product details
Overview
SPC5741PK1AMLQ8 from NXP is an automotive-grade Power Architecture® microcontroller featuring dual e200z4 cores in lockstep, 1 MB flash, 128 KB SRAM, and operation up to 200 MHz. It integrates FlexCAN, LINFlexD, DSPI, SENT, FlexRay, Ethernet, and safety mechanisms for ASIL-D–compliant motor control in electric power steering systems.
For engineers reviewing the SPC5741PK1AMLQ8 datasheet, SPC5741PK1AMLQ8 pinout, SPC5741PK1AMLQ8 application, or SPC5741PK1AMLQ8 equivalent, key selection criteria include lockstep core redundancy, end-to-end ECC memory protection, AEC-Q100 Grade 1 qualification (−40°C to 125°C), and integrated functional safety peripherals including FCCU and LBIST/MBIST.
Technical Context
The SPC5741PK1AMLQ8 implements two e200z4 cores executing in delayed lockstep with embedded floating-point unit and 32-channel eDMA also in lockstep-enabling real-time fault detection for ISO 26262 ASIL-D compliance. Its memory subsystem includes 1 MB on-chip flash with address+data ECC and 128 KB SRAM with A+D ECC.
Peripheral integration supports safety-critical vehicle networks: dual-channel FlexRay™, three FlexCAN controllers, four SENT receivers, four DSPI modules, two FlexPWM units (each with 2+1 channels), and four 12-bit ADCs (16-channel total). All safety-critical peripherals feature duplicate logic, self-test capability, and error injection support via FCCU.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Dual e200z4 Power Architecture cores in delayed lockstep, enabling hardware-level fault detection for ASIL-D applications |
| Max Clock Speed | 200 MHz - supports deterministic real-time control loops in EPS and braking systems |
| Flash Memory | 1 MB with end-to-end ECC - provides robust code storage with single-bit correction and double-bit detection |
| SRAM | 128 KB with address+data ECC - ensures data integrity for safety-critical variables and stack operations |
| Operating Temperature | −40°C to 125°C - qualified per AEC-Q100 Grade 1 for under-hood automotive deployment |
| Supply Voltage | 3.15 V to 5.5 V - compatible with standard 5 V automotive power domains and brown-out tolerant |
| Analog Inputs | 4 × 12-bit ADCs, 16-channel total - enables simultaneous sampling of torque, position, current, and temperature sensors |
Pinout & Package
SPC5741PK1AMLQ8 is housed in a 144-pin LQFP package (16 × 16 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignment follows NXP's MPC574xP family layout, supporting dual FlexRay transceivers, three CAN interfaces, and dedicated safety monitoring pins (FCCU, SWT, STCU).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_MAIN | Main supply input (3.15–5.5 V) | Power domain for core, flash, and most peripherals; requires local decoupling per NXP layout guidelines |
| VDD_IO | I/O supply input | Independent 3.3 V or 5 V rail for GPIO and communication interface voltage level setting |
| VRST_B | Reset input (active-low) | Asynchronous reset pin monitored by FCCU; assertion triggers safe state entry and BIST initialization |
| FLEXRAY_A_TX / RX | Dual-channel FlexRay physical interface | Supports time-triggered communication at 10 Mbps with built-in CRC, synchronization, and fault confinement |
| FLEXCAN0_TX / RX | First CAN 2.0B controller interface | Enables high-integrity vehicle bus communication with programmable bit timing and loopback test mode |
| SENT0_IN0–3 | SENT receiver inputs | Four dedicated SENT channels for direct connection to pressure, position, and temperature sensors without external signal conditioning |
| ADC0_IN0–15 | Analog input multiplexing group | 16-channel analog front-end shared across four 12-bit ADCs; supports simultaneous sampling and hardware triggering |
| SWT_TGT | Safe watchdog timer target | Hardware-protected windowed watchdog output used for fail-safe actuator enable/disable signaling |
Key Features
| Feature | Design Value |
|---|---|
| Dual-core lockstep execution | Enables continuous hardware comparison between e200z4 cores to detect transient faults and force safe state transition |
| End-to-end ECC on flash and SRAM | Corrects single-bit errors and detects double-bit errors in both instruction and data paths, meeting ASIL-D memory integrity requirements |
| Functional Safety Unit (FCCU) | Centralized fault collection and response engine supporting configurable error actions, safe state activation, and diagnostic coverage reporting |
| On-chip BIST (LBIST/MBIST) | Embedded logic and memory self-test routines executed at startup and runtime without host CPU intervention |
| Dedicated SENT receivers | Four hardware SENT decoders eliminate need for software-based pulse decoding, reducing CPU load and jitter in sensor acquisition |
| Dual FlexRay channel support | Enables redundant time-triggered communication for safety domain controllers requiring deterministic latency and fault isolation |
Applications
| Electric Power Steering (EPS) | Airbag System Control |
|---|---|
Use Scenario: Real-time torque assist calculation and motor phase control during steering maneuvers under varying load and temperature conditions. IC Role / Device Role / Timing Role: Primary safety MCU executing ASIL-D motor control algorithms with lockstep core supervision and dual FlexRay/CAN communication. Use Value: 200 MHz deterministic execution and 128 KB ECC SRAM ensure sub-100 µs control loop timing while maintaining fault detection latency below 5 µs. | Use Scenario: High-reliability crash event detection, pyrotechnic trigger sequencing, and occupant classification using multi-sensor fusion. IC Role / Device Role / Timing Role: Safety domain controller managing accelerometer, pressure, and seat occupancy inputs with ASIL-D certified processing path. Use Value: Four 12-bit ADCs with simultaneous sampling and SENT interfaces enable synchronized acquisition of crash sensors without external muxing or timing skew. |
| Safety Motor Controller | Braking & Stability Control |
Use Scenario: Closed-loop control of high-voltage traction or auxiliary motors in x-by-wire architectures with fail-operational capability. IC Role / Device Role / Timing Role: Dual-core lockstep MCU coordinating PWM generation, current sensing, and fault-handling via FlexPWM and eTimer peripherals. Use Value: Two FlexPWM units (each with 2+1 channels) provide independent gate drive signals for dual inverter legs with hardware dead-time insertion and fault shutdown. | Use Scenario: Integrated ABS/ESC control combining wheel speed, yaw rate, and lateral acceleration inputs for dynamic brake vectoring. IC Role / Device Role / Timing Role: Central safety processor interfacing with multiple CAN buses, FlexRay backbone, and analog sensor clusters. Use Value: Three FlexCAN controllers and dual FlexRay channels allow concurrent communication with chassis ECUs, brake modulators, and stability sensors with guaranteed message timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive safety microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SPC5742PK1AMLQ8 | 1.5 MB flash, 192 KB SRAM, same package and pinout | Higher memory capacity supports larger safety firmware stacks and dual-application partitioning | Select when extended boot ROM, OTA update space, or additional safety monitor tasks require >1 MB flash |
| SPC5743PK1AMLQ8 | 2 MB flash, 256 KB SRAM, identical safety architecture and peripheral set | Enables full AUTOSAR OS + safety monitor coexistence with complex driver stacks | Choose for next-generation EPS or ADAS domain controllers needing scalable memory headroom without changing PCB layout |
Compared with SPC5741PK1AMLQ8, the SPC5742PK1AMLQ8 and SPC5743PK1AMLQ8 offer increased flash and RAM while retaining identical safety mechanisms, peripheral configuration, and pin-compatible LQFP-144 packaging-making them drop-in upgrades for memory-constrained designs approaching firmware size limits.
Availability
SPC5741PK1AMLQ8 is available at Aetrix Electronics and suitable for electric power steering, airbag system control, and braking & stability control applications requiring stable component supply, long-term automotive lifecycle support, and AEC-Q100–qualified traceability.
Supply support for SPC5741PK1AMLQ8 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–capable Power Architecture MCUs for safety-critical vehicle subsystems-including EPS, airbag controllers, and domain ECUs-designed to meet ISO 26262 requirements without external safety monitors.
FAQ
What is the maximum operating temperature range for the SPC5741PK1AMLQ8?
The SPC5741PK1AMLQ8 is qualified per AEC-Q100 Grade 1 with an ambient operating temperature range of −40°C to 125°C. This rating applies to the full device functionality including core, memory, and all integrated peripherals such as FlexCAN, FlexRay, and SENT receivers. The part is not rated for 135°C operation-only higher variants like SPC5744P support that extended range.
Does the SPC5741PK1AMLQ8 support Ethernet connectivity?
Yes, the SPC5741PK1AMLQ8 includes a 10/100 Mbps Ethernet MAC with MII/RMII interface support. It does not integrate a PHY; external PHY selection must comply with IEEE 802.3u and automotive EMC requirements. The Ethernet controller supports time-triggered transmission scheduling and checksum offload, making it suitable for gateway and domain controller applications within ISO 26262 architectures.
How many FlexCAN controllers are integrated into the SPC5741PK1AMLQ8?
The SPC5741PK1AMLQ8 integrates three independent FlexCAN 2.0B controllers, each with full message RAM, programmable bit timing, and loopback test mode. All three controllers support CAN FD arbitration-phase only (not data-phase), and each can be configured for separate CAN networks-enabling simultaneous communication with steering, chassis, and body domains without external CAN transceivers beyond the physical layer.
Is the SPC5741PK1AMLQ8 pin-compatible with other MPC574xP family members?
Yes, the SPC5741PK1AMLQ8 shares identical 144-pin LQFP mechanical footprint and pin assignment with SPC5742P, SPC5743P, and SPC5744P variants. Signal mapping, power domains, and safety monitoring pins (e.g., VRST_B, SWT_TGT, FCCU_ERR) are functionally consistent across the family, enabling hardware reuse and scalable memory migration without PCB redesign.
What safety certifications does the SPC5741PK1AMLQ8 support out of the box?
The SPC5741PK1AMLQ8 is designed to support ISO 26262 ASIL-D and IEC 61508 SIL3 certification. It includes hardware safety features such as dual-core lockstep, end-to-end ECC, duplicate peripherals, LBIST/MBIST, ADC self-test, and FCCU-but final certification requires integration-level validation including software safety mechanisms, FMEDA, and tool qualification. NXP provides safety manuals and FMEDA reports for SPC5741PK1AMLQ8 to accelerate system-level assessment.
SPC5741PK1AMLQ8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 144-LQFP
- Series:
- MPC57xx
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- e200z4
- Core Size:
- 32-Bit Dual-Core
- Speed:
- 180MHz
- Connectivity:
- CANbus, Ethernet, FlexRay, LINbus, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, 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):
- 3.15V ~ 5.5V
- Data Converters:
- A/D 64x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
SPC5741PK1AMLQ8 FAQ
1.How can I place an order for SPC5741PK1AMLQ8 through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC5741PK1AMLQ8 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 SPC5741PK1AMLQ8 reliable?
The price and inventory of SPC5741PK1AMLQ8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC5741PK1AMLQ8 is usually 5 days.
3.What payment methods are accepted for SPC5741PK1AMLQ8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC5741PK1AMLQ8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC5741PK1AMLQ8?
SPC5741PK1AMLQ8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC5741PK1AMLQ8 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 SPC5741PK1AMLQ8?
For technical support, including SPC5741PK1AMLQ8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC5741PK1AMLQ8 requirements.
6.How does Aetrix verify that SPC5741PK1AMLQ8 is sourced from the original manufacturer or authorized distributors?
All SPC5741PK1AMLQ8 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 SPC5741PK1AMLQ8 meets industry standards.
7.What is the process for return or replacement of SPC5741PK1AMLQ8?
All SPC5741PK1AMLQ8 units undergo pre-shipment inspection (PSI). If there is an issue with SPC5741PK1AMLQ8, 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 SPC5741PK1AMLQ8 part is unused and in its original packaging.
Return procedure for SPC5741PK1AMLQ8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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