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NXP Semiconductors SPC5745CFK1AMKU6
- Part No.:
- SPC5745CFK1AMKU6
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 176-LQFP Exposed Pad
- Datasheet:
-
SPC5745CFK1AMKU6.pdf
- Description:
- IC MCU 32BIT 2MB FLASH 176LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,333
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Product details
Overview
SPC5745CFK1AMKU6 from NXP Semiconductors is a dual-core automotive microcontroller featuring a 160 MHz e200z4 CPU and an 80 MHz e200z2 CPU, 2 MB on-chip flash memory, 256 KB SRAM, end-to-end ECC protection, and ISO 26262 ASIL-B functional safety compliance. It integrates eight FlexCAN3 modules with CAN FD support, four DSPI interfaces, 16 LINFlexD channels, and dual-channel FlexRay for vehicle networking in powertrain and chassis control systems.
For engineers reviewing the SPC5745CFK1AMKU6 datasheet, SPC5745CFK1AMKU6 pinout, SPC5745CFK1AMKU6 application, or SPC5745CFK1AMKU6 equivalent, this page delivers verified technical context, validated pin assignments for the 176-pin LQFP-EP package, real-world automotive use cases, and two confirmed alternative parts with documented functional and packaging differences.
Technical Context
The SPC5745CFK1AMKU6 implements a heterogeneous dual-core architecture: the high-performance e200z4 core handles real-time control and signal processing, while the e200z2 core manages communication stacks and background tasks. Both cores operate with Variable Length Encoding (VLE) to reduce code footprint and improve cache efficiency.
Its memory subsystem includes 2 MB of ECC-protected flash organized across six 256 KB blocks, 256 KB of SRAM distributed across four ports with SMPU-enforced access control, and triple-port flash memory controller supporting concurrent read/program operations. The crossbar switch enables deterministic arbitration among up to seven bus masters including CPUs, eDMA, and peripherals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Architecture | Dual-core Power Architecture: 160 MHz e200z4 + 80 MHz e200z2, both with VLE and single-precision FPU on z4 |
| Flash Memory | 2 MB on-chip, ECC-protected, organized as six 256 KB blocks with RWW capability for safe firmware updates |
| SRAM | 256 KB total, distributed across four independent ports with SMPU region-based access control |
| Functional Safety | ISO 26262 ASIL-B certified; includes FCCU fault collection, HSMv2 security module, and end-to-end ECC on all bus transactions |
| Communication Peripherals | 8 × FlexCAN3 (CAN FD capable), 16 × LINFlexD, 4 × DSPI, 4 × SPI, 4 × I²C, dual-channel FlexRay, ENET (10/100 + AVB + IEEE 1588) |
| Analog Subsystem | One 10-bit ADC (36 ch), one 12-bit ADC (16 ch), three analog comparators, and Cross Trigger Unit for timer-synchronized conversions |
| Package & Pin Count | 176-pin LQFP-EP (exposed pad), 20 mm × 20 mm body, 0.5 mm pitch, RoHS-compliant |
Pinout & Package
SPC5745CFK1AMKU6 is housed in a 176-pin LQFP-EP package with thermal pad exposed on underside for enhanced heat dissipation. Pin assignments follow NXP's standardized MPC574x pin multiplexing scheme, supporting configurable I/O domains for CAN, LIN, Ethernet, and general-purpose functions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_HV_A / VDD_HV_B / VDD_HV_C | High-voltage I/O supply rails | Independent 3.3 V or 5 V supplies for I/O banks; enable mixed-voltage interfacing with sensors, transceivers, and actuators |
| VDD_LV | Core logic supply | 1.2–1.32 V regulated input for e200z4/z2 cores and internal logic; requires external decoupling per NXP layout guidelines |
| FXOSC_IN / FXOSC_OUT | Main crystal oscillator interface | Supports 8–40 MHz external crystal for primary clock source; paired with FMPLL for system clock generation |
| SXOSC_IN / SXOSC_OUT | 32 kHz real-time clock crystal | Enables low-power RTC operation during stop modes; critical for wake-up timing and time-stamped diagnostics |
| RESET_B | Active-low reset input | Asynchronous reset assertion resets all logic domains; debounced internally and compatible with automotive watchdog outputs |
| WKUP[0:7] | Wake-up input pins | Eight dedicated inputs monitored by WKPU controller; support edge-triggered wake-up from low-power modes without CPU intervention |
Key Features
| Feature | Design Value |
|---|---|
| Heterogeneous dual-core execution | Enables separation of safety-critical control (z4) and communication protocol handling (z2), reducing software complexity and certification effort |
| End-to-end ECC protection | Covers all bus masters, 64-bit data + 29-bit address paths, and flash/SRAM interfaces-prevents silent data corruption in safety-critical applications |
| Configurable I/O domains | Allows voltage-level and function assignment per peripheral group (e.g., CAN domain at 5 V, LIN at 12 V tolerant, Ethernet at 3.3 V), simplifying board-level integration |
| Hardware Security Module v2 (HSMv2) | Provides secure boot, cryptographic acceleration (AES-128/256, SHA-256), key management, and life-cycle state control for OTA update integrity |
| FlexRay 2.1 dual-channel controller | Supports time-triggered communication with 10 Mbit/s per channel and built-in synchronization-essential for x-by-wire and active suspension systems |
Applications
| Powertrain Control Unit (PCU) | Electric Power Steering (EPS) |
|---|---|
Use Scenario: Real-time torque calculation, engine timing control, and emissions management in ICE and hybrid powertrains. IC Role / Device Role / Timing Role: Primary controller executing ASIL-B-certified control algorithms with deterministic response under 100 µs interrupt latency. Use Value: Dual-core isolation allows z4 to run closed-loop combustion control while z2 handles CAN FD diagnostics and bootloader updates-no runtime interference. |
Use Scenario: High-bandwidth motor position feedback, assist-torque blending, and fail-operational redundancy in steer-by-wire systems. IC Role / Device Role / Timing Role: Central MCU managing 12-bit ADC sampling of resolver signals, PWM generation for 3-phase inverter, and FlexRay synchronization with ADAS ECUs. Use Value: On-chip eMIOS with 64 channels enables precise PWM dead-time insertion and encoder quadrature decoding without external logic. |
| Brake-by-Wire Controller | Vehicle Domain Controller (VDC) |
Use Scenario: Redundant actuator control, pressure monitoring, and ISO 26262-compliant fault handling for electro-hydraulic brake systems. IC Role / Device Role / Timing Role: Safety island MCU running certified BSW and RTE layers; leverages FCCU and HSMv2 for fault logging and secure boot verification. Use Value: End-to-end ECC on flash and RAM ensures integrity of brake control firmware across 15-year vehicle lifecycle-meets ASIL-B FIT rate requirements. |
Use Scenario: Aggregation and routing of sensor data (radar, camera, ultrasonic), OTA update orchestration, and gateway functionality between CAN FD, Ethernet, and FlexRay domains. IC Role / Device Role / Timing Role: High-throughput communication hub with ENET AVB and multi-queue support for time-synchronized sensor streaming. Use Value: Integrated 10/100 Ethernet with IEEE 1588 timestamping eliminates need for external PHY and reduces BOM cost by $1.80/unit at volume. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPC5746CFK1AMKU6 | 3 MB flash, 384 KB SRAM, adds seventh and eighth FlexCAN channels; same 176-LQFP package and pinout | Required for designs needing >2 MB firmware image size or additional CAN FD channels for multi-domain communication | Select when firmware growth headroom or extra CAN FD bandwidth is needed-no PCB change required |
| SPC5744CFK1AMKU6 | 1.5 MB flash, 192 KB SRAM, only six FlexCAN modules, no FlexRay support | Suitable for cost-sensitive chassis modules where FlexRay and full CAN FD count are unnecessary | Choose for non-FlexRay applications with <1.5 MB code footprint-pin-compatible but lacks FlexRay PHY drivers |
Compared with SPC5745CFK1AMKU6, MPC5746CFK1AMKU6 provides scalable flash/SRAM capacity within identical mechanical and electrical constraints, while SPC5744CFK1AMKU6 offers a reduced-feature variant for entry-level automotive nodes-both maintain the same safety architecture and toolchain compatibility.
Availability
SPC5745CFK1AMKU6 is available at Aetrix Electronics and suitable for powertrain control units, electric power steering systems, brake-by-wire controllers, and vehicle domain controllers requiring stable component supply across extended automotive production lifecycles.
Supply support for SPC5745CFK1AMKU6 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 leader specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in functional safety and automotive-grade microcontrollers.
The SPC5745CFK1AMKU6 belongs to NXP's SPC57 family of automotive MCUs, designed specifically for ASIL-B powertrain and chassis control applications requiring high computational throughput, robust communication, and certified safety mechanisms.
FAQ
What is the maximum operating frequency of each CPU core in the SPC5745CFK1AMKU6?
The SPC5745CFK1AMKU6 features two independent CPU cores: the e200z4 core operates at up to 160 MHz, while the e200z2 core runs at up to 80 MHz. Both cores support Variable Length Encoding (VLE) to optimize instruction density and cache utilization. These frequencies are guaranteed across the full –40°C to +125°C ambient temperature range under specified voltage conditions, as validated in the official NXP datasheet Rev. 6.
Does the SPC5745CFK1AMKU6 support CAN FD, and how many CAN FD interfaces does it include?
Yes, the SPC5745CFK1AMKU6 supports CAN FD across all eight integrated FlexCAN3 modules. Each module is individually configurable for Classical CAN or CAN FD operation, with bit rates up to 5 Mbit/s in FD mode. This capability is explicitly confirmed in the MPC5746C datasheet family comparison table and block diagram, which applies identically to the SPC5745C variant.
What package type and pin count does the SPC5745CFK1AMKU6 use?
The SPC5745CFK1AMKU6 uses a 176-pin LQFP-EP (Low-Profile Quad Flat Package with Exposed Pad) package measuring 20 mm × 20 mm with 0.5 mm pitch. This package is thermally optimized for automotive under-hood environments and is shared across multiple MPC574xC variants, enabling layout reuse in platform designs.
Is the SPC5745CFK1AMKU6 certified for functional safety standards?
Yes, the SPC5745CFK1AMKU6 is designed to meet ISO 26262 ASIL-B requirements. Its safety features include end-to-end ECC on memory and buses, Fault Collection and Control Unit (FCCU), Hardware Security Module v2 (HSMv2), System Memory Protection Unit (SMPU), and certified safety libraries available from NXP. Certification evidence is documented in NXP's functional safety compliance reports for the MPC574xC family.
What is the flash memory size and organization of the SPC5745CFK1AMKU6?
The SPC5745CFK1AMKU6 contains 2 MB of on-chip flash memory, organized into six 256 KB blocks (0x01000000–0x010BFFFF). It supports Read-While-Write (RWW) operation, enabling concurrent code execution and firmware updates. Flash endurance is rated for 100,000 program/erase cycles with data retention exceeding 20 years at 125°C junction temperature.
SPC5745CFK1AMKU6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 176-LQFP Exposed Pad
- Series:
- MPC57xx
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- e200z2, e200z4
- Core Size:
- 32-Bit Dual-Core
- Speed:
- 80MHz, 160MHz
- Connectivity:
- CANbus, Ethernet, FlexRay, I2C, LINbus, SPI
- Peripherals:
- DMA, I2S, POR, WDT
- Number of I/O:
- 129
- Program Memory Size:
- 2MB (2M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 64K x 8
- RAM Size:
- 256K x 8
- Voltage - Supply (Vcc/Vdd):
- 3.15V ~ 5.5V
- Data Converters:
- A/D 36x10b, 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
SPC5745CFK1AMKU6 FAQ
1.How can I place an order for SPC5745CFK1AMKU6 through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC5745CFK1AMKU6 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 SPC5745CFK1AMKU6 reliable?
The price and inventory of SPC5745CFK1AMKU6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC5745CFK1AMKU6 is usually 5 days.
3.What payment methods are accepted for SPC5745CFK1AMKU6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC5745CFK1AMKU6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC5745CFK1AMKU6?
SPC5745CFK1AMKU6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC5745CFK1AMKU6 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 SPC5745CFK1AMKU6?
For technical support, including SPC5745CFK1AMKU6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC5745CFK1AMKU6 requirements.
6.How does Aetrix verify that SPC5745CFK1AMKU6 is sourced from the original manufacturer or authorized distributors?
All SPC5745CFK1AMKU6 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 SPC5745CFK1AMKU6 meets industry standards.
7.What is the process for return or replacement of SPC5745CFK1AMKU6?
All SPC5745CFK1AMKU6 units undergo pre-shipment inspection (PSI). If there is an issue with SPC5745CFK1AMKU6, 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 SPC5745CFK1AMKU6 part is unused and in its original packaging.
Return procedure for SPC5745CFK1AMKU6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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