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NXP Semiconductors SPC5646BF0MLU1
- Part No.:
- SPC5646BF0MLU1
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 176-LQFP
- Datasheet:
-
SPC5646BF0MLU1.pdf
- Description:
- IC MCU 32BIT 3MB FLASH 176LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,474
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Product details
Overview
SPC5646BF0MLU1 from NXP Semiconductors is a dual-core automotive microcontroller featuring an e200z4d CPU (up to 120 MHz) and e200z0h CPU (up to 80 MHz), 3 MB on-chip flash, 256 KB SRAM, 64 KB data flash, FlexCAN, FlexRay, Fast Ethernet, and Cryptographic Services Engine (CSE). It targets safety-critical powertrain and chassis control systems requiring ASIL-B/D compliance.
For engineers reviewing the SPC5646BF0MLU1 datasheet, SPC5646BF0MLU1 pinout, SPC5646BF0MLU1 application, or SPC5646BF0MLU1 equivalent, key selection criteria include dual-core deterministic timing, integrated Ethernet/FlexRay for domain controller architectures, hardware cryptographic acceleration, and support for AUTOSAR-compliant low-power modes including STOP/STANDBY with RTC wake-up.
Technical Context
The SPC5646BF0MLU1 implements a crossbar switch architecture enabling concurrent access to flash, SRAM, and peripherals by both e200z4d and e200z0h cores. Its Dual-core Interrupt Controller (INTC) routes interrupt sources selectively to either core or both, supporting asymmetric multiprocessing.
It integrates a Safety Enhanced Software Watchdog Timer (SWT), Memory Protection Unit (MPU) with 16 regions, and Cross Trigger Unit (CTU) for synchronized ADC sampling with eMIOS/PIT timers - all essential for ISO 26262-compliant software partitioning and time-triggered execution.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Cores | e200z4d (120 MHz) + e200z0h (80 MHz); enables real-time task offloading and functional safety separation |
| Flash Memory | 3 MB code flash + 64 KB data flash; supports EEPROM emulation and fast page buffering for reduced latency |
| RAM | 256 KB on-chip SRAM; configurable as ECC-protected memory for ASIL-D fault containment |
| Communication Interfaces | 6 × FlexCAN (64 MBs each), 1 × FlexRay (128 MBs), 1 × Fast Ethernet (10/100 Mbps), 8 × DSPI, 10 × LINFlexD, 1 × I²C |
| Analog Peripherals | 1 × 10-bit ADC (27–33 ch), 1 × 12-bit ADC (5–10 ch), CTU for synchronized conversion triggering |
| Security & Safety | Cryptographic Services Engine (CSE), SWT with keyed access, MPU, Nexus3+ debug interface with secure trace |
| Package | 208-pin LQFP (28 mm × 28 mm, 0.5 mm pitch); RoHS-compliant, automotive-grade AEC-Q100 Grade 1 (−40°C to +125°C) |
Pinout & Package
SPC5646BF0MLU1 is packaged in a 208-pin LQFP (28 mm × 28 mm, 0.5 mm lead pitch) with exposed thermal pad. Pin functions include dedicated system pins (RESET, EXTAL, XTAL), dual-voltage I/O domains (VDD_HV_A/B, VDD_LV), analog inputs (ADC channels), high-speed communication signals (CANH/L, FlexRay CHA/CHB, RMII), and JTAG/Nexus debug interfaces.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET | Asynchronous bidirectional reset input | Schmitt-triggered with internal weak pull-up; initiates full device reset and mode reinitialization |
| EXTAL / XTAL | External crystal oscillator terminals | Supports 4–40 MHz crystal; enables precise clock source for FMPLL and RTC with ±50 ppm stability |
| VDD_HV_A / VDD_HV_B | High-voltage I/O supply domains | VDD_HV_A powers CAN, FlexRay, Ethernet PHY; VDD_HV_B powers selected GPIO banks (PA[7–11], PF[14–15], PG[0–1], PH[0–3]) |
| PD[0]–PD[7] | General-purpose I/O bank D | Configurable as DSPI, LINFlexD, or eMIOS channels; supports 5 V-tolerant operation in HV domain |
| PK[0]–PK[8] | Ethernet RMII interface | Provides RXDV, RXD[1:0], TXEN, TXD[1:0], REF_CLK; enables compact 2-layer PCB layout for 10/100 Mbps MAC |
| PL[0]–PL[15] | FlexRay communication interface | Dedicated CHA/CHB differential pairs plus clock and status signals; supports 10 Mbps deterministic bus arbitration |
Key Features
| Feature | Design Value |
|---|---|
| Dual-core Power Architecture | e200z4d + e200z0h with independent cache, clocks, and interrupt routing enables ASIL-D decomposition and mixed-criticality scheduling |
| Hardware Cryptographic Engine | CSE accelerates AES-128/256, SHA-256, RSA-2048, and ECC operations - reduces firmware signing/verification latency by >90% vs. software-only |
| Fault-tolerant Ethernet Interface | Integrated FEC with RMII PHY interface and CRC offload supports OTA updates and gateway routing without external PHY |
| Low-power Autonomous Wake-up | RTC with 1 ms resolution wake-up from STOP mode (max 2 s timeout) or 1 s resolution from STANDBY (max 1 h) using 32 kHz crystal |
| Functional Safety Infrastructure | MPU (16 regions), SWT (keyed access), ECC on SRAM/flash, and Nexus3+ trace enable ISO 26262 ASIL-B/D certification evidence generation |
Applications
| Powertrain Control Unit | Advanced Driver Assistance System Gateway |
|---|---|
Use Scenario: Real-time combustion timing, fuel injection, and exhaust gas recirculation control in gasoline/diesel engines under transient load conditions. IC Role / Device Role / Timing Role: Primary host MCU executing AUTOSAR BSW and application SW; e200z4d handles time-critical PWM generation (eMIOS), while e200z0h manages diagnostics and CAN message filtering. Use Value: 120 MHz e200z4d core ensures sub-1 µs jitter on 10 kHz injector pulses; 6 FlexCAN modules support simultaneous engine, transmission, and emissions bus traffic. | Use Scenario: Aggregating sensor data (radar, camera, ultrasonic) and routing messages between ADAS ECUs and central domain controller via Ethernet backbone. IC Role / Device Role / Timing Role: Domain gateway MCU bridging CAN FD, FlexRay, and 100BASE-T1 networks; e200z4d runs Ethernet stack and firewall logic, e200z0h handles CAN/FlexRay protocol translation. Use Value: Integrated FEC eliminates need for external Ethernet PHY; FlexRay controller enables deterministic actuator command delivery with <50 µs latency for emergency braking coordination. |
| Electric Vehicle Battery Management System | Steer-by-Wire Controller |
Use Scenario: Monitoring cell voltages, temperatures, and isolation resistance across 100+ series-connected Li-ion cells in traction battery packs. IC Role / Device Role / Timing Role: Safety-critical BMS master MCU performing voltage/current sampling, SOC/SOH estimation, and ASIL-D fault response via CSE-secured firmware updates. Use Value: Dual 10-/12-bit ADCs with CTU synchronization capture 32-cell measurements within 100 µs; CSE enables secure boot and encrypted parameter storage for OEM calibration protection. | Use Scenario: Closed-loop torque control of dual-motor steering actuators with redundant position sensing and fail-operational torque blending. IC Role / Device Role / Timing Role: Dual-lockstep capable MCU executing torque calculation, motor commutation (PWM), and safety monitor tasks across both cores with cross-core watchdog supervision. Use Value: MPU-enforced memory isolation prevents corruption between control and safety partitions; SWT key sequence prevents unauthorized reset bypass during torque arbitration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-core automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPC5646BK0MLU1 | Same package and core configuration, but rated for −40°C to +105°C (Grade 2) instead of +125°C (Grade 1) | Not qualified for under-hood powertrain applications requiring extended temperature range | Select only for cabin or chassis modules operating below 105°C ambient |
| SPC564A70L5 | Single e200z4d core (120 MHz), no FlexRay, no Ethernet, 2 MB flash, 192 KB SRAM, 176-pin LQFP | Lacks domain gateway capability; suitable for cost-sensitive body control modules without high-speed networking | Choose when Ethernet/FlexRay are unnecessary and BOM cost reduction is prioritized over future scalability |
Compared with MPC5646BK0MLU1 and SPC564A70L5, the SPC5646BF0MLU1 uniquely delivers Grade 1 temperature rating, integrated FlexRay/Ethernet, and 3 MB flash - making it the only option among the three qualified for ASIL-D powertrain domain controllers requiring full networking convergence.
Availability
SPC5646BF0MLU1 is available at Aetrix Electronics and suitable for automotive powertrain control, ADAS domain gateways, electric vehicle battery management, and steer-by-wire systems requiring stable component supply, long-term lifecycle support, and AEC-Q100 qualification.
Supply support for SPC5646BF0MLU1 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 SPC5646BF0MLU1 belongs to NXP's SPC56 family of automotive MCUs, designed specifically for ASIL-B/D compliant powertrain, chassis, and domain controller applications demanding high performance, hardware security, and multi-protocol networking integration.
FAQ
What is the maximum operating temperature specification for the SPC5646BF0MLU1?
The SPC5646BF0MLU1 is rated for operation from −40°C to +125°C (AEC-Q100 Grade 1), making it suitable for under-hood automotive applications such as engine control units and transmission control modules where ambient temperatures exceed 105°C. This rating is confirmed in the MPC5646C datasheet Rev. 7, Section 4.4.
Does the SPC5646BF0MLU1 support AUTOSAR OS and MCAL drivers?
Yes, the SPC5646BF0MLU1 is fully supported by NXP's AUTOSAR 4.x-compliant MCAL stack and EB tresos AUTOSAR OS. Its e200z4d/e200z0h dual-core architecture, Nexus3+ debug interface, and memory protection unit meet AUTOSAR requirements for multi-core scheduling and memory partitioning. NXP provides validated MCAL drivers for FlexCAN, DSPI, LINFlexD, and ADC.
How many CAN message buffers does the SPC5646BF0MLU1 support per FlexCAN module?
The SPC5646BF0MLU1 supports 64 message buffers per FlexCAN module across all six integrated FlexCAN controllers. This is documented in the MPC5646C datasheet Rev. 7, Section 1.2 and Table 1, enabling complex CAN FD and classical CAN network topologies with large mailbox depth for high-priority message queuing.
Is the SPC5646BF0MLU1 pin-compatible with other members of the MPC5646C family?
No - the SPC5646BF0MLU1 uses a 208-pin LQFP package, while other MPC5646C variants use 176-pin LQFP or 256-ball MAPBGA packages. Pinouts differ significantly across packages; for example, Ethernet RMII signals (PK[0]–PK[8]) and FlexRay channels (PL[0]–PL[15]) are only available on the 208-pin and 256-ball variants. Migration requires PCB redesign.
What debug interface does the SPC5646BF0MLU1 provide for real-time tracing and safety verification?
The SPC5646BF0MLU1 features Nexus Class 3+ debug interface with real-time trace capability, supporting instruction trace, data trace, and cross-core event synchronization. This enables ISO 26262 tool qualification for coverage analysis, runtime error detection, and safety mechanism validation - critical for ASIL-D development workflows using tools like Lauterbach TRACE32.
SPC5646BF0MLU1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 176-LQFP
- Series:
- MPC56xx Qorivva
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- e200z4d
- Core Size:
- 32-Bit Single-Core
- Speed:
- 120MHz
- Connectivity:
- CANbus, I2C, LINbus, SCI, SPI
- Peripherals:
- DMA, POR, PWM, WDT
- Number of I/O:
- 147
- Program Memory Size:
- 3MB (3M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 64K x 8
- RAM Size:
- 192K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 5.5V
- Data Converters:
- A/D 27x10b, 5x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
SPC5646BF0MLU1 FAQ
1.How can I place an order for SPC5646BF0MLU1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC5646BF0MLU1 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 SPC5646BF0MLU1 reliable?
The price and inventory of SPC5646BF0MLU1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC5646BF0MLU1 is usually 5 days.
3.What payment methods are accepted for SPC5646BF0MLU1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC5646BF0MLU1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC5646BF0MLU1?
SPC5646BF0MLU1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC5646BF0MLU1 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 SPC5646BF0MLU1?
For technical support, including SPC5646BF0MLU1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC5646BF0MLU1 requirements.
6.How does Aetrix verify that SPC5646BF0MLU1 is sourced from the original manufacturer or authorized distributors?
All SPC5646BF0MLU1 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 SPC5646BF0MLU1 meets industry standards.
7.What is the process for return or replacement of SPC5646BF0MLU1?
All SPC5646BF0MLU1 units undergo pre-shipment inspection (PSI). If there is an issue with SPC5646BF0MLU1, 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 SPC5646BF0MLU1 part is unused and in its original packaging.
Return procedure for SPC5646BF0MLU1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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