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NXP Semiconductors SPC5741PK1AKLQ8R
- Part No.:
- SPC5741PK1AKLQ8R
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
SPC5741PK1AKLQ8R.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,935
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Product details
Overview
SPC5741PK1AKLQ8R from NXP is an automotive-grade 32-bit Power Architecture® microcontroller featuring dual e200z4 cores in lockstep, operating up to 200 MHz with embedded floating-point unit and 32-channel eDMA also in lockstep; includes 1 MB Flash, 128 KB SRAM, four 12-bit ADCs (16-channel), FlexCAN, LINFlexD, DSPI, SENT, SIPI/LFAST, and dual-channel FlexRay for safety-critical motor control in electric power steering systems.
For engineers reviewing the SPC5741PK1AKLQ8R datasheet, SPC5741PK1AKLQ8R pinout, SPC5741PK1AKLQ8R application, or SPC5741PK1AKLQ8R equivalent, this part supports ISO 26262 ASIL D functional safety compliance, operates from −40°C to 125°C, and integrates end-to-end ECC, core/DMA lockstep, duplicate peripherals, LBIST/MBIST, and ADC self-test-key selection criteria for EPS, airbag, and braking control designs.
Technical Context
The SPC5741PK1AKLQ8R implements a dual-core lockstep architecture where both e200z4 cores execute identical instructions with cycle-accurate comparison, enabling real-time fault detection; memory subsystems-including 1 MB Flash and 128 KB SRAM-feature address+data ECC protection across instruction/data paths and memory controllers.
It integrates safety-critical peripherals including two FlexPWM modules (each with 2+1 channels), two eTimer modules (6-channel each), PIT/STM (4-channel), FCCU for fault collection and control, and dual FlexRay controllers supporting time-triggered communication; all safety mechanisms are validated per ISO 26262 ASIL D requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Dual e200z4 Power Architecture cores in delayed lockstep for ASIL D fault detection |
| Max Clock Speed | 200 MHz-enables deterministic real-time execution for motor control loops & safety monitors |
| Flash Memory | 1 MB with end-to-end ECC-supports secure boot, firmware updates, and redundancy storage |
| SRAM | 128 KB with address+data ECC-provides protected workspace for safety-critical variables and stack |
| Analog Input | 4 × 12-bit ADCs, 16-channel total-meets resolution and channel count needs for torque/position sensing in EPS |
| Communication Interfaces | FlexCAN (3x), LINFlexD (2x), DSPI (4x), SENT (4x), SIPI/LFAST, dual FlexRay-covers full automotive domain controller I/O |
| Operating Temperature | −40°C to +125°C ambient-qualified per AEC-Q100 Grade 1 for under-hood deployment |
| Supply Voltage | 3.15 V to 5.5 V-compatible with automotive battery rail and pre-regulated 5 V domains |
Pinout & Package
SPC5741PK1AKLQ8R is housed in a 144-pin LQFP package (body size 20 mm × 20 mm, 0.5 mm pitch) with exposed thermal pad; pin assignment follows NXP MPC574xP family layout, supporting dedicated safety-redundant signal routing and differential FlexRay/FlexCAN termination.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_A, VDD_B | Analog power supply | Independent 3.3 V domains for ADC and analog comparators-reduces noise coupling in sensor acquisition |
| VDD_IO | I/O power supply | Configurable 3.3 V or 5 V rail-supports mixed-voltage interface with legacy sensors and actuators |
| FSCLK, FSREF | FlexRay clock input | Differential reference clock inputs for dual FlexRay controllers-ensures precise time-triggered synchronization |
| CAN_H/CAN_L (x3) | FlexCAN differential bus terminals | Three isolated CAN physical layers-enables redundant communication paths for ASIL D domain controllers |
| SENT_IN0–SENT_IN3 | SENT sensor input channels | Four dedicated SENT receivers-directly interfaces with pressure, position, and temperature sensors without external decoding |
| ETM_TRACES0–7 | Nexus trace debug outputs | 8-bit parallel trace port-enables real-time instruction and data flow visibility for safety verification and certification |
Key Features
| Feature | Design Value |
|---|---|
| Dual-core lockstep execution | Hardware-enforced instruction-level comparison between two e200z4 cores-detects transient faults within one clock cycle |
| End-to-end ECC on Flash & SRAM | Single-bit error correction and double-bit error detection across entire memory path-prevents silent data corruption in safety state machines |
| FCCU with configurable fault response | Flexible Control and Communication Unit manages over 100 internal/external fault sources with programmable reaction (reset, interrupt, safe state) |
| ADC self-test capability | Built-in diagnostic mode verifies conversion linearity, offset, and gain without external stimulus-required for ASIL D runtime diagnostics |
| Dual FlexRay controllers | Two independent time-triggered networks with separate clocks and buffers-enables redundant communication for brake-by-wire or steer-by-wire |
| Safety Lake monitoring | Dedicated hardware block continuously validates core, DMA, and peripheral integrity using checksums and signature checks-no software overhead |
Applications
| Electric Power Steering (EPS) | Airbag System Control |
|---|---|
Use Scenario: Real-time torque assist calculation and fail-safe actuation during vehicle maneuvering, with continuous sensor health monitoring. IC Role / Device Role / Timing Role: Primary safety MCU executing ASIL D motor control algorithms, managing PWM outputs, SENT sensor inputs, and FlexRay communication to ADAS ECUs. Use Value: Dual-core lockstep and ECC memory ensure uninterrupted torque command delivery even under single-point hardware faults-critical for driver-assist continuity. | Use Scenario: High-speed crash event detection, pyrotechnic trigger sequencing, and occupant position validation prior to airbag deployment. IC Role / Device Role / Timing Role: Safety domain controller processing accelerometer, seatbelt, and radar inputs; generating certified safe outputs to squib drivers via isolated SPI/FlexCAN. Use Value: FCCU-managed fault response and ADC self-test enable <100 µs fault detection-to-action latency-meeting ISO 26262 ASIL D timing constraints for life-critical actuation. |
| Braking & Stability Control | Adaptive Cruise Control (ACC) |
Use Scenario: Coordinating hydraulic modulator valves and wheel speed feedback across multiple CAN nodes while maintaining fail-operational behavior. IC Role / Device Role / Timing Role: Central brake domain controller interfacing with ABS sensors via SENT, communicating with ESC ECU via FlexCAN, and driving solenoid PWMs. Use Value: Dual FlexRay channels provide redundant time-triggered messaging for brake pressure arbitration-eliminating single-network failure modes. | Use Scenario: Processing radar and camera fusion data to compute inter-vehicle distance, relative speed, and longitudinal acceleration commands. IC Role / Device Role / Timing Role: Sensor fusion hub receiving raw data via DSPI/SIPI, performing filtering and decision logic, and issuing throttle/brake requests over FlexCAN. Use Value: 200 MHz core speed and 32-channel eDMA enable sub-10 ms loop times for real-time ACC control-meeting OEM latency targets for Class B ACC systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive safety microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SPC5742PK1AKLQ8R | 1.5 MB Flash, 192 KB SRAM, same package and pinout-higher memory for extended diagnostics and logging | Preferred for systems requiring larger safety firmware partitions or dual-bank OTA updates | Select when additional Flash/SRAM headroom is needed without changing PCB layout or safety qualification effort |
| SPC5743PK1AKLQ8R | 2 MB Flash, 256 KB SRAM, identical safety architecture and peripheral set-increased memory for complex middleware stacks | Suitable for domain controllers integrating AUTOSAR OS, Crypto Stack, and communication gateways | Choose when deploying AUTOSAR-based software frameworks requiring >1.5 MB of non-volatile code space |
Compared with SPC5741PK1AKLQ8R, the SPC5742PK1AKLQ8R and SPC5743PK1AKLQ8R retain identical safety mechanisms, pin compatibility, and peripheral configuration-but scale memory resources to support deeper diagnostic logging, multi-layer software stacks, and future-proof firmware growth without redesigning safety-critical hardware interfaces.
Availability
SPC5741PK1AKLQ8R 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-compliant traceability.
Supply support for SPC5741PK1AKLQ8R 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 optimized for safety-critical automotive domain controllers-including EPS, airbag, and chassis control-with integrated lockstep cores, ECC memory, and certified safety peripherals.
FAQ
What is the maximum operating temperature range for the SPC5741PK1AKLQ8R?
The SPC5741PK1AKLQ8R is qualified for operation from −40°C to +125°C ambient temperature per AEC-Q100 Grade 1 specifications. This range supports under-hood deployment in engine compartments and transmission control units. The device's thermal design includes dedicated thermal pads and internal junction temperature monitoring, ensuring reliable operation within this envelope. All safety mechanisms-including lockstep comparison and ECC-are validated across the full temperature range. SPC5741PK1AKLQ8R maintains functional integrity without derating up to 125°C.
Does the SPC5741PK1AKLQ8R support ISO 26262 ASIL D compliance out of the box?
The SPC5741PK1AKLQ8R is architected to support ISO 26262 ASIL D development, with hardware features including dual-core lockstep, end-to-end ECC, FCCU, LBIST/MBIST, and ADC self-test-all documented in NXP's safety manual (UM10841). However, achieving ASIL D requires system-level integration, safety analysis, and software qualification per ISO 26262 Part 6. SPC5741PK1AKLQ8R provides the foundational hardware safety mechanisms, but final certification depends on the complete application implementation. NXP supplies safety documentation and FMEDA data specifically for SPC5741PK1AKLQ8R.
How many FlexCAN interfaces does the SPC5741PK1AKLQ8R include, and are they pin-compatible across the MPC574xP family?
The SPC5741PK1AKLQ8R integrates three FlexCAN controllers, each supporting CAN 2.0B protocol with message RAM and flexible filtering. Pin assignments for CAN_H/CAN_L signals are consistent across all MPC574xP variants in the 144 LQFP package, including SPC5741PK1AKLQ8R, SPC5742PK1AKLQ8R, and SPC5743PK1AKLQ8R. This enables direct PCB reuse when upgrading Flash/SRAM capacity. Each CAN module has dedicated pins with internal termination and wakeup capability-no external transceivers required for basic functionality.
What debug interfaces are supported by the SPC5741PK1AKLQ8R?
The SPC5741PK1AKLQ8R supports Nexus Class 3+ debug via JTAG and Aurora trace interfaces, including 8-bit parallel ETM trace output (ETM_TRACES0–7) and SWD-compatible serial wire debug. It is compatible with Lauterbach TRACE32, iSystem winIDEA, and PLS UDE debug tools. The device also supports Nexus-compliant real-time trace, instruction stepping, and memory access debugging. SPC5741PK1AKLQ8R includes dedicated debug security controls to prevent unauthorized access during production programming or field service.
Is the SPC5741PK1AKLQ8R pinout identical to the SPC5744PK1AKLQ8R in the same LQFP package?
Yes-the SPC5741PK1AKLQ8R and SPC5744PK1AKLQ8R share identical pinout, package dimensions, and thermal pad layout in the 144-pin LQFP variant. Both use the same mechanical footprint and electrical pin mapping, enabling drop-in replacement for memory-upgraded designs. Differences are limited to internal Flash (1 MB vs. 2.5 MB) and SRAM (128 KB vs. 384 KB); no signal routing or power delivery changes are required. SPC5741PK1AKLQ8R retains full peripheral signal routing-including all FlexCAN, FlexRay, and SENT pins-at the same locations.
SPC5741PK1AKLQ8R 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:
- 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 ~ 135°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
SPC5741PK1AKLQ8R FAQ
1.How can I place an order for SPC5741PK1AKLQ8R through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC5741PK1AKLQ8R 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 SPC5741PK1AKLQ8R reliable?
The price and inventory of SPC5741PK1AKLQ8R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC5741PK1AKLQ8R is usually 5 days.
3.What payment methods are accepted for SPC5741PK1AKLQ8R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC5741PK1AKLQ8R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC5741PK1AKLQ8R?
SPC5741PK1AKLQ8R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC5741PK1AKLQ8R 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 SPC5741PK1AKLQ8R?
For technical support, including SPC5741PK1AKLQ8R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC5741PK1AKLQ8R requirements.
6.How does Aetrix verify that SPC5741PK1AKLQ8R is sourced from the original manufacturer or authorized distributors?
All SPC5741PK1AKLQ8R 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 SPC5741PK1AKLQ8R meets industry standards.
7.What is the process for return or replacement of SPC5741PK1AKLQ8R?
All SPC5741PK1AKLQ8R units undergo pre-shipment inspection (PSI). If there is an issue with SPC5741PK1AKLQ8R, 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 SPC5741PK1AKLQ8R part is unused and in its original packaging.
Return procedure for SPC5741PK1AKLQ8R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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