NXP Semiconductors SPC5746RK1MMT5
- Part No.:
- SPC5746RK1MMT5
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 252-LFBGA
- Datasheet:
-
SPC5746RK1MMT5.pdf
- Description:
- IC MCU 32BIT 4MB FLASH 252MAPBGA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
SPC5746RK1MMT5 from NXP Semiconductors is a 32-bit automotive microcontroller based on dual E200z425 Power Architecture cores running at up to 200 MHz, featuring 4 MB flash, 224 KB SRAM, dual ADCs (SAR + sigma-delta), FlexCAN, Ethernet (FEC), LFAST, and hardware safety features including lock-step checker core, ECC memory protection, and FCCU. It targets engine control units and transmission control modules requiring ASIL-D compliance.
For engineers reviewing the SPC5746RK1MMT5 datasheet, SPC5746RK1MMT5 pinout, SPC5746RK1MMT5 application, or SPC5746RK1MMT5 equivalent, key selection criteria include functional safety architecture (delayed lock-step with redundancy checkers), dual-core timing determinism, integrated flash endurance (100k program/erase cycles), and automotive-grade operating range (–40 °C to 150 °C junction).
Technical Context
The SPC5746RK1MMT5 implements a dual-core computational domain: two 200 MHz E200z425 main cores operate in parallel, while a dedicated 200 MHz E200z424 checker core runs in delayed lock-step for real-time fault detection. Memory subsystem includes 4 MB on-chip flash with set-associative prefetch, 224 KB SRAM with E2E ECC, and 32 KB standby SRAM with independent VDDSTBY supply.
Peripheral integration centers on automotive I/O: six FlexCAN controllers (ISO 11898-1 compliant), one 10/100 Mbps FEC Ethernet MAC with MII/RMII support, dual LFAST interfaces for high-speed sensor communication, and mixed-signal resources including 2× SAR ADC (12-bit, 16-channel) and 2× sigma-delta ADC (24-bit, 8-channel) with dedicated analog supplies and references.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Dual E200z425 @ 200 MHz + E200z424 checker core in delayed lock-step for ASIL-D fault coverage |
| Memory | 4 MB flash (100k P/E cycles, 256 kB EEPROM emulation), 224 KB SRAM with E2E ECC, 32 KB standby SRAM |
| ADC System | 2× SAR ADC (12-bit, 16 ch, 1.25 MSPS), 2× sigma-delta ADC (24-bit, 8 ch, 10 kSPS), independent VDD_HV_ADV_SAR/VDD_HV_ADV_SD supplies |
| Communication | 6× FlexCAN (ISO 11898-1), 1× FEC Ethernet (MII/RMII), 2× LFAST, 4× DSPI, 6× LINFlex, 2× SENT |
| Safety Features | FCCU, CRC engines, SMPU/CMPU, Nexus3p debug with data trace, hardware memory protection, boot ROM with secure boot |
| Operating Range | Junction temperature –40 °C to 150 °C; core supply 1.18–1.38 V (LVD/HVD disabled), I/O supply 3.0–5.5 V |
| Package | MAPBGA-324 (15 × 15 mm, 0.8 mm pitch), RoHS-compliant, MSL3 |
Pinout & Package
SPC5746RK1MMT5 is housed in a 324-ball MAPBGA package (15 mm × 15 mm, 0.8 mm ball pitch) with thermal pad, rated MSL3 per JEDEC J-STD-020D. Ball assignment follows NXP's standard SIUL2-based signal mapping with dedicated power/ground segmentation for analog, digital, and I/O domains.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_LV | Core supply input | 1.2 V nominal supply for CPU cores, cache, and internal logic; requires tight regulation (±3%); ramp rate 0.069–100 V/ms |
| VDD_HV_IO_MAIN | Main I/O supply | 3.0–5.5 V supply for GPIO, CAN, LIN, SPI; supports TTL/CMOS thresholds; segment current limit ±80 mA |
| VDD_HV_ADV_SAR | SAR ADC analog supply | 3.0–5.5 V dedicated supply for SAR ADC; must be ≥ VDD_HV_ADR_SAR – 25 mV for full accuracy |
| VDD_HV_ADV_SD | Sigma-delta ADC analog supply | 4.5–5.5 V supply for SD ADC; must be ≥ VDD_HV_ADV_SAR and ≥ VDD_HV_ADR_SD for guaranteed precision |
| RESET | Asynchronous reset input | Active-low reset with internal pull-down; releases after POR and clock stabilization; triggers FCCU safety state transition |
| CLKIN | Crystal oscillator input | Accepts 4–40 MHz crystal or external clock; feeds FMPLL for system clock generation; requires VDD_HV_IO_JTAG ≥ 3.0 V |
Key Features
| Feature | Design Value |
|---|---|
| Dual-core lock-step safety | Primary E200z425 core and checker E200z424 core execute identical code with time-shifted comparison, enabling real-time fault detection per ISO 26262 ASIL-D requirements |
| E2E ECC memory protection | End-to-end error correction coding applied to flash, SRAM, eDMA, crossbar switches, and peripheral bridges-detects and corrects single-bit errors, detects multi-bit errors |
| Automotive Ethernet interface | FEC controller supports 10/100 Mbps MII/RMII with IEEE 802.3 compliance, integrated MDIO/MDC management, and CRC-32 frame validation |
| LFAST high-speed sensor bus | LVDS-based serial interface supporting >100 Mbps point-to-point or daisy-chain topologies for torque sensors, position encoders, and radar modules |
| Integrated safety monitoring | FCCU manages fail-safe states, watchdog timers (SWT/STM), voltage monitors (LVD/HVD), and clock failure detection with configurable response actions |
Applications
| Engine Control Unit (ECU) | Transmission Control Module (TCM) |
|---|---|
|
Use Scenario: Real-time combustion timing, fuel injection pulse width, and knock detection in gasoline/diesel powertrains. IC Role / Device Role / Timing Role: Primary compute engine executing ASIL-D control algorithms with deterministic 200 MHz dual-core execution and hardware safety supervision. Use Value: Dual E200z425 cores deliver 3,200 DMIPS combined; integrated SAR/SD ADCs enable simultaneous cylinder pressure and crankshaft position sampling at <1 µs latency. |
Use Scenario: Clutch engagement control, gear shift scheduling, and torque converter lock-up in 8-speed automatic transmissions. IC Role / Device Role / Timing Role: Safety-critical actuator driver coordinating CAN FD communication with gearbox ECU and real-time PWM generation for solenoid valves. Use Value: Six FlexCAN controllers support redundant CAN networks; 224 KB ECC SRAM buffers transmission telemetry streams without software overhead. |
| Electric Power Steering (EPS) | Brake Control Unit (BCU) |
|
Use Scenario: Motor current sensing, torque feedback processing, and assist torque calculation under dynamic road load conditions. IC Role / Device Role / Timing Role: Mixed-signal controller interfacing with 24-bit sigma-delta ADCs for motor phase current and 12-bit SAR ADCs for temperature/voltage monitoring. Use Value: Dedicated VDD_HV_ADV_SD (4.5–5.5 V) and VDD_HV_ADV_SAR (3.0–5.5 V) supplies ensure ADC linearity <±0.003% FS across –40 °C to 150 °C. |
Use Scenario: ABS/EBD pressure modulation, wheel speed signal conditioning, and hydraulic valve actuation in brake-by-wire systems. IC Role / Device Role / Timing Role: Fault-tolerant controller with lock-step core pair validating critical braking decisions and driving SENT interfaces to pressure sensors. Use Value: FCCU-managed safety states enable <100 µs fail-safe response; integrated SENT_0/SENT_1 support 1–32 bit frames at 125 kbps for real-time pressure reporting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPC5746C | Same dual-core architecture and peripheral set, but lacks LFAST interface and has reduced flash (2 MB vs 4 MB) | Targeted at cost-sensitive ASIL-B applications where high-speed sensor bus is not required | Select MPC5746C when LFAST is unnecessary and flash budget ≤2 MB suffices for application code + calibration data |
| SPC58NG84C3 | ARM Cortex-R5F dual-core (300 MHz), 8 MB flash, supports AUTOSAR 4.3+, but no native Power Architecture toolchain compatibility | Designed for next-gen zonal architectures requiring higher compute density and POSIX-compliant RTOS support | Choose SPC58NG84C3 for new designs targeting AUTOSAR Adaptive, high-bandwidth OTA updates, or heterogeneous core offload |
Compared with MPC5746C, SPC5746RK1MMT5 provides double flash capacity and LFAST for advanced sensor fusion; versus SPC58NG84C3, it retains Power Architecture ecosystem continuity and deterministic interrupt latency critical for legacy engine control software.
Availability
SPC5746RK1MMT5 is available at Aetrix Electronics and suitable for engine control units, transmission control modules, electric power steering systems, and brake control units requiring stable component supply across extended automotive lifecycles.
Supply support for SPC5746RK1MMT5 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 focused on automotive, industrial, IoT, and communication infrastructure solutions, with deep expertise in functional safety and secure processing.
The SPC5746RK1MMT5 belongs to NXP's SPC57 family of automotive MCUs designed specifically for ASIL-D powertrain and chassis control applications, emphasizing hardware safety, real-time determinism, and long-term automotive qualification.
FAQ
What is the maximum operating junction temperature for the SPC5746RK1MMT5?
The SPC5746RK1MMT5 is qualified for continuous operation at a maximum junction temperature of 150 °C, validated per AEC-Q100 Grade 0 requirements. Thermal design must maintain TJ ≤150 °C under worst-case ambient (125 °C) and power dissipation (700 mA on VDD_LV at 200 MHz). The device includes on-die temperature sensor with ±2.5 °C accuracy referenced to VDD_HV_ADV_SAR.
Does the SPC5746RK1MMT5 support AUTOSAR-compliant software stacks?
Yes, the SPC5746RK1MMT5 is fully supported by AUTOSAR 4.2.2 and 4.3 compliant MCAL drivers, configuration tools (EB tresos, Vector DaVinci), and certified RTOSes (ETAS RTA-OSEK, Elektrobit EB tresos). Its dual-core lock-step architecture and FCCU meet AUTOSAR Safety Manager requirements for ASIL-D decomposition.
What are the flash endurance and data retention specifications for the SPC5746RK1MMT5?
The SPC5746RK1MMT5 guarantees 100,000 program/erase cycles for its 4 MB flash memory, with data retention of 20 years at 125 °C junction temperature and 30 years at 105 °C. Retention is specified per JEDEC JESD22-A117, and endurance testing includes accelerated wear-leveling across all sectors.
How does the LFAST interface on the SPC5746RK1MMT5 differ from standard LVDS communication?
The SPC5746RK1MMT5 LFAST interface uses custom LVDS physical layer signaling optimized for deterministic low-latency sensor communication, supporting daisy-chain topologies up to 8 nodes with programmable skew compensation and built-in CRC-16 error detection. Unlike generic LVDS, LFAST integrates protocol framing, clock recovery, and error containment within hardware-reducing CPU overhead by >90% versus software-managed LVDS.
Is the SPC5746RK1MMT5 pin-compatible with other members of the SPC5746R family?
Yes, the SPC5746RK1MMT5 shares identical MAPBGA-324 pinout and ball assignment with all SPC5746R variants (e.g., SPC5746CK1MMT5, SPC5746RK0MMT5), enabling hardware reuse across performance tiers. Differences are limited to internal flash size, ADC configuration, and feature enablement-verified in NXP's SPC5746R Reference Manual section 2.1 "Pin Compatibility".
SPC5746RK1MMT5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 252-LFBGA
- Series:
- MPC57xx
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- e200z4
- Core Size:
- 32-Bit Tri-Core
- Speed:
- 200MHz
- Connectivity:
- CANbus, Ethernet, I2C, LINbus, SCI, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, Zipwire
- Number of I/O:
- -
- Program Memory Size:
- 4MB (4M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 256K x 8
- Voltage - Supply (Vcc/Vdd):
- 3.5V ~ 5.5V
- Data Converters:
- A/D 12b SAR, 16b Sigma-Delta
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
SPC5746RK1MMT5 FAQ
1.How can I place an order for SPC5746RK1MMT5 through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC5746RK1MMT5 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 SPC5746RK1MMT5 reliable?
The price and inventory of SPC5746RK1MMT5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC5746RK1MMT5 is usually 5 days.
3.What payment methods are accepted for SPC5746RK1MMT5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC5746RK1MMT5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC5746RK1MMT5?
SPC5746RK1MMT5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC5746RK1MMT5 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 SPC5746RK1MMT5?
For technical support, including SPC5746RK1MMT5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC5746RK1MMT5 requirements.
6.How does Aetrix verify that SPC5746RK1MMT5 is sourced from the original manufacturer or authorized distributors?
All SPC5746RK1MMT5 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 SPC5746RK1MMT5 meets industry standards.
7.What is the process for return or replacement of SPC5746RK1MMT5?
All SPC5746RK1MMT5 units undergo pre-shipment inspection (PSI). If there is an issue with SPC5746RK1MMT5, 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 SPC5746RK1MMT5 part is unused and in its original packaging.
Return procedure for SPC5746RK1MMT5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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