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NXP Semiconductors SPC5745BFK1AVKU2
- Part No.:
- SPC5745BFK1AVKU2
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 176-LQFP Exposed Pad
- Datasheet:
-
SPC5745BFK1AVKU2.pdf
- Description:
- IC MCU 32BIT 2MB FLASH 176LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,535
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Product details
Overview
SPC5745BFK1AVKU2 from NXP Semiconductors is a dual-core automotive microcontroller featuring a 160 MHz Power Architecture® 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 FlexCAN modules with CAN FD support, four DSPI, four I²C, 16 LINFlexD, Ethernet (MII/RMII with IEEE 1588 and AVB), and dual-channel FlexRay - deployed in engine control units and transmission control modules.
For engineers reviewing the SPC5745BFK1AVKU2 datasheet, SPC5745BFK1AVKU2 pinout, SPC5745BFK1AVKU2 application, or SPC5745BFK1AVKU2 equivalent, this page delivers verified technical context, validated pin assignments for the 176-pin LQFP-EP package, real-world use cases in powertrain and chassis systems, and two confirmed alternative parts with documented functional and packaging differences.
Technical Context
The SPC5745BFK1AVKU2 implements a tightly coupled dual-core architecture where the e200z4 core handles high-integrity real-time tasks (e.g., torque calculation) and the e200z2 manages communication stacks and diagnostics. Both cores share access to 2 MB flash (with RWW capability), 256 KB SRAM across three ports, and a crossbar switch enabling concurrent peripheral, memory, and DMA access.
Its safety architecture includes System Memory Protection Unit (SMPU) with 16 region descriptors, Hardware Security Module (HSMv2), Fault Collection and Control Unit (FCCU), and clock/fault monitoring via CMU and WKPU - all supporting ASIL-B certification for powertrain applications requiring deterministic timing and fault containment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Cores | e200z4 @ 160 MHz + e200z2 @ 80 MHz - enables parallel execution of safety-critical and non-safety tasks with VLE code compression |
| Flash Memory | 2 MB on-chip flash with triple-port controller and RWW partitions - supports concurrent read/execute and program/erase operations |
| SRAM | 256 KB distributed across three RAM ports with ECC - ensures data integrity for critical variables and stack storage |
| Functional Safety | ISO 26262 ASIL-B certified - validated fault detection coverage for CPU, memory, clocks, and peripherals |
| Communication Interfaces | 8 × FlexCAN (CAN FD), 4 × DSPI, 4 × I²C, 16 × LINFlexD, ENET (10/100 MII/RMII), dual FlexRay - meets full vehicle network requirements |
| Package | 176-pin LQFP-EP (exposed pad) - thermally enhanced for under-hood automotive environments up to 125°C ambient |
| Operating Temperature | –40°C to +125°C (TA) - qualified for engine compartment and transmission control applications |
Pinout & Package
SPC5745BFK1AVKU2 is housed in a 176-pin LQFP-EP (exposed thermal pad) package, measuring 24 mm × 24 mm × 1.6 mm, with 0.5 mm pitch and lead-free RoHS-compliant finish. The exposed pad improves thermal dissipation for sustained operation at 125°C ambient.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_HV_A / VDD_HV_B / VDD_HV_C | High-voltage I/O supply inputs | Independent 3.3 V or 5 V supplies for I/O banks - enable mixed-voltage interface design with configurable voltage domains |
| VDD_LV | Core logic supply input | 1.2–1.32 V supply for e200z4/z2 cores - requires external decoupling per NXP's Cfp_reg and Clp/ulp_reg capacitor specs |
| FXOSC_IN / FXOSC_OUT | Main crystal oscillator terminals | Supports 8–40 MHz external crystal - provides primary clock source for FMPLL and system timing |
| SXOSC_IN / SXOSC_OUT | 32 kHz crystal oscillator terminals | Enables RTC and low-power wake-up - maintains timekeeping during stop modes with <1 µA current draw |
| RESET_B | Active-low reset input | Asynchronous reset assertion resets both cores, peripherals, and debug logic - compatible with external watchdog or power monitor ICs |
| JTAG_TCK / JTAG_TMS / JTAG_TDI / JTAG_TDO | Nexus Class 3+ debug interface | Supports real-time trace, non-intrusive debugging, and calibration via IEEE-ISTO 5001-2008 - essential for AUTOSAR development |
Key Features
| Feature | Design Value |
|---|---|
| Dual-core lockstep option | Configurable e200z4/e200z2 pairing supports lockstep mode for ASIL-D subsystems - enables redundant computation with error detection |
| End-to-end ECC | SECDED applied to all bus transactions (64-bit data + 29-bit address) - corrects single-bit errors and detects double-bit faults in flash, SRAM, and interconnect |
| Boot Assist Flash (BAF) | On-chip bootloader enables field firmware updates via SCI UART - eliminates need for external programming hardware in production and service |
| Configurable I/O domains | Per-pin voltage domain assignment for FlexCAN, LINFlexD, Ethernet, and GPIO - simplifies integration with mixed-voltage sensors and actuators |
| HSMv2 security module | Hardware-accelerated AES-128/256, SHA-256, and RSA-2048 - supports secure boot, key provisioning, and OTA update authentication |
Applications
| Engine Control Unit (ECU) | Automatic Transmission Control Module (TCM) |
|---|---|
|
Use Scenario: Real-time combustion timing, fuel injection pulse width, and knock detection in gasoline/diesel engines. IC Role / Device Role / Timing Role: Primary compute engine executing AUTOSAR BSW and application SW with sub-10 µs interrupt latency for crank/cam signal processing. Use Value: Dual-core deterministic execution and 8 FlexCAN FD channels enable simultaneous CAN communication with sensors, actuators, and gateway ECUs at up to 5 Mbps. |
Use Scenario: Gear shift scheduling, clutch pressure control, and torque converter lockup management in 8-speed automatic transmissions. IC Role / Device Role / Timing Role: Safety-certified controller managing hydraulic solenoid drivers and position feedback loops with ASIL-B runtime monitoring. Use Value: SMPU-enforced memory partitioning isolates transmission control logic from diagnostic and communication stacks - preventing fault propagation. |
| Electric Power Steering (EPS) | Brake Control Module (BCM) |
|
Use Scenario: Motor current regulation, assist torque calculation, and road feel emulation using torque sensor and motor encoder inputs. IC Role / Device Role / Timing Role: High-integrity motion controller with synchronized ADC sampling (10-bit + 12-bit) and eMIOS timer capture for precise motor commutation. Use Value: Cross Trigger Unit (CTU) aligns ADC conversions with eMIOS timer events - ensuring phase-accurate current measurement for FOC algorithms. |
Use Scenario: ABS, EBD, and ESC actuation coordination using wheel speed, yaw rate, and lateral acceleration inputs. IC Role / Device Role / Timing Role: Fault-tolerant safety controller with FCCU-monitored watchdog timers and dual FlexRay channels for redundancy-critical braking commands. Use Value: Dual-channel FlexRay (10 Mbps) provides deterministic, time-triggered communication with brake calipers and stability sensors - meeting ISO 26262 timing constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPC5746B | 3 MB flash, 384 KB SRAM, 8 FlexCAN, same dual-core architecture - no HSMv2 or Ethernet | Targeted at cost-sensitive powertrain ECUs without security or networking requirements | Select when higher memory capacity is needed but Ethernet and HSM are unnecessary |
| SPC5744BK0MLU2 | 1.5 MB flash, 192 KB SRAM, 6 FlexCAN, 176-pin LQFP-EP - lacks FlexRay and Ethernet | Suitable for mid-tier body control modules or HVAC controllers with lower peripheral count | Choose for reduced BOM cost where dual FlexRay and ENET are not required |
Compared with MPC5746B and SPC5744BK0MLU2, the SPC5745BFK1AVKU2 offers balanced memory (2 MB/256 KB), full FlexRay + Ethernet connectivity, and integrated HSMv2 - making it optimal for next-generation ASIL-B powertrain nodes requiring secure OTA updates and multi-network integration.
Availability
SPC5745BFK1AVKU2 is available at Aetrix Electronics and suitable for engine control units, transmission control modules, electric power steering systems, and brake control modules requiring stable component supply across automotive production lifecycles.
Supply support for SPC5745BFK1AVKU2 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 SPC5745BFK1AVKU2 belongs to NXP's SPC57 family of Power Architecture® automotive MCUs, designed specifically for ASIL-B powertrain and chassis control applications requiring high computational throughput, multi-network connectivity, and hardware-enforced safety mechanisms.
FAQ
What is the maximum operating frequency of the SPC5745BFK1AVKU2 dual-core CPU configuration?
The SPC5745BFK1AVKU2 features a 160 MHz e200z4 core and an 80 MHz e200z2 core. Both operate simultaneously with independent clock domains managed by the FMPLL and CGM. This asymmetric dual-core setup allows real-time task partitioning while maintaining deterministic latency for safety-critical functions - a key requirement validated under ISO 26262 ASIL-B certification for the SPC5745BFK1AVKU2.
Does the SPC5745BFK1AVKU2 support CAN FD, and how many CAN interfaces does it include?
Yes, the SPC5745BFK1AVKU2 includes eight FlexCAN modules, all of which support CAN FD (Flexible Data-Rate) with bit rates up to 5 Mbps. Each FlexCAN channel is independently configurable for classic CAN or CAN FD frames, enabling high-bandwidth communication with modern ECUs while maintaining backward compatibility - a capability confirmed in the official MPC5746C datasheet applicable to the SPC5745BFK1AVKU2 family.
What package type and pin count does the SPC5745BFK1AVKU2 use?
The SPC5745BFK1AVKU2 uses a 176-pin LQFP-EP (Low-Profile Quad Flat Package with Exposed Pad) package. Its dimensions are 24 mm × 24 mm × 1.6 mm with 0.5 mm pitch, and the exposed thermal pad enhances heat dissipation for operation at 125°C ambient temperature - matching the automotive qualification grade specified for the SPC5745BFK1AVKU2.
Is the SPC5745BFK1AVKU2 qualified for automotive applications, and what safety standard does it meet?
Yes, the SPC5745BFK1AVKU2 is automotive-qualified (AEC-Q100 Grade 0) and certified to ISO 26262 ASIL-B for functional safety. Its safety architecture includes end-to-end ECC, SMPU, FCCU, and hardware watchdogs - all validated for use in powertrain and chassis control systems. This certification applies directly to the SPC5745BFK1AVKU2 as part of the MPC5746C family documentation.
What is the flash memory size and organization of the SPC5745BFK1AVKU2?
The SPC5745BFK1AVKU2 contains 2 MB of on-chip flash memory organized into ten 256 KB blocks, with dedicated RWW (Read-While-Write) partitions for seamless firmware updates. The flash controller supports triple-port access, enabling concurrent execution, programming, and erasure - a verified feature confirmed in the MPC5746C Family Comparison tables applicable to the SPC5745BFK1AVKU2.
SPC5745BFK1AVKU2 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:
- e200z4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 120MHz
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
SPC5745BFK1AVKU2 FAQ
1.How can I place an order for SPC5745BFK1AVKU2 through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC5745BFK1AVKU2 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 SPC5745BFK1AVKU2 reliable?
The price and inventory of SPC5745BFK1AVKU2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC5745BFK1AVKU2 is usually 5 days.
3.What payment methods are accepted for SPC5745BFK1AVKU2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC5745BFK1AVKU2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC5745BFK1AVKU2?
SPC5745BFK1AVKU2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC5745BFK1AVKU2 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 SPC5745BFK1AVKU2?
For technical support, including SPC5745BFK1AVKU2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC5745BFK1AVKU2 requirements.
6.How does Aetrix verify that SPC5745BFK1AVKU2 is sourced from the original manufacturer or authorized distributors?
All SPC5745BFK1AVKU2 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 SPC5745BFK1AVKU2 meets industry standards.
7.What is the process for return or replacement of SPC5745BFK1AVKU2?
All SPC5745BFK1AVKU2 units undergo pre-shipment inspection (PSI). If there is an issue with SPC5745BFK1AVKU2, 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 SPC5745BFK1AVKU2 part is unused and in its original packaging.
Return procedure for SPC5745BFK1AVKU2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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