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NXP Semiconductors SPC5743PFK1AMLQ9
- Part No.:
- SPC5743PFK1AMLQ9
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
SPC5743PFK1AMLQ9.pdf
- Description:
- IC MCU 32BIT 2MB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,388
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Product details
Overview
SPC5743PFK1AMLQ9 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 SRAM, and AEC-Q100 Grade 1 qualification (−40°C to +125°C). It integrates FlexCAN, FlexRay, LINFlexD, SENT, DSPI, Ethernet, and safety features including core/DMA lockstep, end-to-end ECC, and FCCU for electric power steering and airbag system control.
For engineers reviewing the SPC5743PFK1AMLQ9 datasheet, SPC5743PFK1AMLQ9 pinout, SPC5743PFK1AMLQ9 application, or SPC5743PFK1AMLQ9 equivalent, key selection criteria include ASIL-D functional safety support, dual-channel FlexRay™ interface, 4×12-bit ADC with 16 channels, lockstep eDMA, and 144-pin LQFP packaging compatible with SPC574xP family layout reuse.
Technical Context
The SPC5743PFK1AMLQ9 implements a dual-core safety architecture where two e200z4 cores execute identical instructions in delayed lockstep, enabling real-time fault detection via comparator logic and safe error reporting through FCCU. Its memory subsystem includes 2 MB on-chip flash with instruction/data ECC and 256 KB SRAM with address/data ECC, both protected by memory protection unit (MPU) with 16 configurable regions.
Peripheral integration targets high-integrity automotive domains: dual FlexRay controllers support time-triggered communication for chassis control; four SENT interfaces enable direct connection to pressure/temperature sensors; and two FlexPWM modules (each with 2+1 channel configuration) provide precise motor phase control with dead-time insertion and fault monitoring.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Dual e200z4 Power Architecture cores in delayed lockstep, enabling ASIL-D compliance via hardware-level fault detection |
| Max Clock Speed | 200 MHz - supports real-time deterministic execution for EPS and braking control loops |
| Flash Memory | 2 MB with I/D ECC - sufficient for dual-application images plus safety monitor firmware |
| SRAM | 256 KB with address/data ECC - accommodates safety-critical data buffers and stack isolation |
| ADC | 4 × 12-bit ADC, 16-channel total - enables concurrent sampling of torque, position, and current sensors in motor control |
| FlexRay Channels | 2 independent channels - supports redundant or split-domain communication in safety domain controllers |
| Operating Temp | −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 5 V automotive battery rail and regulated 3.3 V domains |
Pinout & Package
SPC5743PFK1AMLQ9 is housed in a 144-pin LQFP package (16 mm × 16 mm, 0.5 mm pitch), RoHS-compliant and moisture-sensitive level 3. Pin assignment follows the standardized SPC574xP LQFP footprint, supporting drop-in compatibility across SPC5741P/SPC5742P/SPC5743P/SPC5744P variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_A | Analog power supply | Provides clean 5 V for ADC, reference, and analog comparators; requires local decoupling |
| VDD_IO | I/O power supply | Supplies 3.3 V or 5 V to GPIO banks; supports mixed-voltage interfacing with external transceivers |
| FSRST_B | Failsafe reset input | Asynchronous active-low reset triggered by external safety monitor or watchdog timeout |
| FRAY_TX0 / FRAY_RX0 | FlexRay Channel 0 differential pair | Direct connection to FlexRay transceiver; supports 10 Mbps time-triggered communication |
| CAN0_TX / CAN0_RX | FlexCAN Channel 0 differential signals | Interface to ISO 11898-2 transceiver; supports CAN FD framing at up to 5 Mbps |
| SENT0–SENT3 | SENT sensor interface inputs | Four dedicated single-wire digital inputs for pressure, temperature, and position sensors with CRC validation |
| ETM_TRACESCLK / ETM_TRACE0–7 | Nexus Class 3 debug trace outputs | Enables real-time instruction and data trace for ASIL-D verification using Lauterbach or iSystem tools |
Key Features
| Feature | Design Value |
|---|---|
| Core/DMA Lockstep | Dual e200z4 cores + 32-channel eDMA operate in synchronized delayed lockstep with hardware comparator, enabling permanent fault detection per ISO 26262 requirements |
| End-to-End ECC | Flash, SRAM, crossbar switch, and peripheral registers all implement address+data ECC, eliminating silent data corruption in safety-critical paths |
| Functional Safety Peripherals | Duplicate ADCs, dual CTU units, LBIST/MBIST, and FCCU provide layered self-test coverage for ASIL-D decomposition |
| Automotive Communication Suite | Integrated FlexRay (2 ch), FlexCAN (3 ch), LINFlexD (2 ch), SENT (4 ch), DSPI (4 ch), and Ethernet (10/100 Mbit) meet full chassis domain interconnect needs |
| Safety-Certified Software Support | NXP-provided SafeAssure drivers (FCCU, ADC self-test, ECC scrubbing) are pre-qualified for ISO 26262 ASIL-D integration |
Applications
| Electric Power Steering (EPS) | Airbag System Control |
|---|---|
Use Scenario: Real-time torque assist calculation and motor phase control during vehicle maneuvering, with fail-safe torque reduction on fault detection. IC Role / Device Role / Timing Role: Primary safety controller executing ASIL-D motor control algorithms, managing FlexPWM outputs, SENT sensor inputs, and FlexRay coordination with ADAS domain. Use Value: Dual lockstep cores and eDMA ensure deterministic 100 µs loop timing; 4×ADC enables simultaneous sampling of torque, position, and current feedback without arbitration delay. | Use Scenario: Monitoring crash sensors, deploying airbags within 20 ms, and validating pyrotechnic circuit integrity prior to deployment. IC Role / Device Role / Timing Role: Central safety MCU performing sensor fusion, pyro driver control, and dual-channel communication with seatbelt pretensioners and side-impact modules via FlexRay. Use Value: FCCU-managed fault tree analysis and duplicate ADCs allow SIL3/ASIL-D compliant decision latency under 5 ms; 2 MB flash stores multiple crash profile models and diagnostics logs. |
| Safety Domain Controller | Braking & Stability Control |
Use Scenario: Aggregating sensor data from radar, camera, and wheel speed modules to coordinate lateral/longitudinal vehicle dynamics across ADAS and chassis domains. IC Role / Device Role / Timing Role: High-integrity gateway and arbitration node running ASIL-B software on isolated core partition while supervising ASIL-D peripherals. Use Value: Crossbar switch with E2E ECC ensures interference-free data routing between FlexRay, Ethernet, and CAN; MPU enforces strict memory isolation between safety and non-safety partitions. | Use Scenario: Closed-loop ABS/ESC actuation requiring synchronized wheel speed sampling, hydraulic valve PWM control, and yaw rate correlation. IC Role / Device Role / Timing Role: Real-time chassis controller managing 2×FlexPWM (6-phase drive), 4×SENT (wheel speed sensors), and dual FlexRay for brake-by-wire coordination. Use Value: 200 MHz clock and lockstep eDMA guarantee sub-50 µs sensor-to-actuator latency; 125°C ambient rating supports placement near brake control units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive safety microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SPC5744PFK1AMLQ9 | 2.5 MB flash, 384 KB SRAM, same package and pinout | Supports larger safety firmware images and dual-application redundancy | Select when >2 MB code space or extended RAM for runtime diagnostics is required |
| SPC5742PFK1AMLQ9 | 1.5 MB flash, 192 KB SRAM, identical safety architecture and peripheral set | Optimized for cost-sensitive ASIL-D modules with reduced feature scope | Select for airbag squib drivers or shock controllers where full 2 MB flash is unnecessary |
Compared with SPC5743PFK1AMLQ9, the SPC5744P offers higher memory capacity for complex safety monitors, while the SPC5742P reduces BOM cost without compromising lockstep integrity or FlexRay/SENT capability-enabling scalable ASIL-D platform design across EPS, airbag, and chassis domains.
Availability
SPC5743PFK1AMLQ9 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 SPC5743PFK1AMLQ9 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 SPC574xP product line delivers ASIL-D-capable Power Architecture MCUs designed specifically for safety-critical automotive chassis and body control applications, including EPS, airbag, and active suspension systems.
FAQ
What is the maximum junction temperature specification for the SPC5743PFK1AMLQ9?
The SPC5743PFK1AMLQ9 is rated for operation up to 135°C junction temperature and qualified to AEC-Q100 Grade 1 (−40°C to +125°C ambient). This enables direct mounting in high-temperature under-hood locations such as EPS motor housings or brake control units without additional thermal derating.
Does the SPC5743PFK1AMLQ9 support CAN FD communication?
Yes, the SPC5743PFK1AMLQ9 integrates three FlexCAN modules that support CAN FD protocol with bit rates up to 5 Mbps in data phase. Each module includes message RAM with hardware acceptance filtering and flexible timestamping, enabling robust communication in modern automotive networks alongside legacy CAN.
How does the SPC5743PFK1AMLQ9 implement end-to-end ECC protection?
The SPC5743PFK1AMLQ9 applies end-to-end ECC to flash (instruction/data), SRAM (address/data), crossbar switch transfers, and critical peripheral registers. ECC logic detects and corrects single-bit errors and detects double-bit errors in real time, with dedicated interrupt vectors routed to FCCU for ASIL-D fault handling.
Is the SPC5743PFK1AMLQ9 pin-compatible with other SPC574xP family members?
Yes, the SPC5743PFK1AMLQ9 shares identical 144-pin LQFP pinout and signal mapping with SPC5741P, SPC5742P, and SPC5744P variants. This allows PCB reuse across memory- and feature-scaled versions while maintaining identical power, ground, and safety-critical signal assignments.
What debug and trace capabilities does the SPC5743PFK1AMLQ9 provide for ASIL-D development?
The SPC5743PFK1AMLQ9 supports Nexus Class 3 debug interface with 8-bit parallel trace output (ETM), JTAG, and Aurora trace compression. It enables real-time instruction and data trace using Lauterbach TRACE32 or iSystem winIDEA, essential for coverage analysis and runtime verification of ASIL-D software stacks.
SPC5743PFK1AMLQ9 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:
- 200MHz
- Connectivity:
- CANbus, Ethernet, FlexRay, LINbus, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, WDT
- Number of I/O:
- -
- Program Memory Size:
- 2MB (2M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 256K 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:
SPC5743PFK1AMLQ9 FAQ
1.How can I place an order for SPC5743PFK1AMLQ9 through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC5743PFK1AMLQ9 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 SPC5743PFK1AMLQ9 reliable?
The price and inventory of SPC5743PFK1AMLQ9 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC5743PFK1AMLQ9 is usually 5 days.
3.What payment methods are accepted for SPC5743PFK1AMLQ9?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC5743PFK1AMLQ9 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC5743PFK1AMLQ9?
SPC5743PFK1AMLQ9 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC5743PFK1AMLQ9 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 SPC5743PFK1AMLQ9?
For technical support, including SPC5743PFK1AMLQ9 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC5743PFK1AMLQ9 requirements.
6.How does Aetrix verify that SPC5743PFK1AMLQ9 is sourced from the original manufacturer or authorized distributors?
All SPC5743PFK1AMLQ9 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 SPC5743PFK1AMLQ9 meets industry standards.
7.What is the process for return or replacement of SPC5743PFK1AMLQ9?
All SPC5743PFK1AMLQ9 units undergo pre-shipment inspection (PSI). If there is an issue with SPC5743PFK1AMLQ9, 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 SPC5743PFK1AMLQ9 part is unused and in its original packaging.
Return procedure for SPC5743PFK1AMLQ9:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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