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NXP Semiconductors SPC5746BK1AMMH2
- Part No.:
- SPC5746BK1AMMH2
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 100-LFBGA
- Datasheet:
-
SPC5746BK1AMMH2.pdf
- Description:
- SINGLE CORE, 3M FLASH
- Quantity:
- Payment:
- Shipping:
Inventory:3,870
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Product details
Overview
SPC5746BK1AMMH2 from NXP Semiconductors is a dual-core automotive microcontroller featuring a 160 MHz e200z4 CPU and an 80 MHz e200z2 CPU, 3 MB on-chip flash, 384 KB SRAM with end-to-end ECC, and integrated HSMv2 security module. It supports CAN FD (8 channels), FlexRay (dual-channel), 10/100 Ethernet with AVB and IEEE 1588, and is certified to ISO 26262 ASIL-B for powertrain and chassis control applications.
For engineers reviewing the SPC5746BK1AMMH2 datasheet, SPC5746BK1AMMH2 pinout, SPC5746BK1AMMH2 application, or SPC5746BK1AMMH2 equivalent, key selection criteria include dual-core deterministic timing, hardware security for secure boot and key management, functional safety support for ASIL-B decomposition, and multi-protocol connectivity for domain controller architectures.
Technical Context
The SPC5746BK1AMMH2 implements a crossbar switch architecture enabling concurrent access to flash, SRAM, and peripherals by both CPU cores and the 32-channel eDMA. Its memory subsystem includes triple-port flash controller with three page buffers and SMPU with 32 region descriptors for fine-grained memory protection across safety-critical partitions.
Timing and safety infrastructure comprises FMPLL with frequency modulation, RTC, 16 PITs, two STM modules, FCCU for fault collection, and CMU for clock monitoring - all designed to meet automotive diagnostic coverage requirements under ISO 26262.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Cores | Dual-core: 160 MHz e200z4 + 80 MHz e200z2, both supporting VLE and single-precision floating-point |
| Flash Memory | 3 MB on-chip flash with ECC, triple-port controller, and Boot Assist Flash (BAF) for serial programming |
| SRAM | 384 KB distributed across three RAM ports, all protected by end-to-end SECDED ECC |
| Functional Safety | ISO 26262 ASIL-B certified; includes FCCU, SMPU, memory BIST, and lockstep-capable peripherals |
| Communication Interfaces | 8 × FlexCAN3 with FD support, 2 × FlexRay 2.1, ENET (MII/RMII, AVB, IEEE 1588), 4 × DSPI, 4 × I²C, 16 × LINFlexD |
| Analog Peripherals | Two ADCs (10-bit + 12-bit), three analog comparators, Cross Trigger Unit for synchronized sampling |
| Security | HSMv2 with cryptographic acceleration, PASS for lifecycle management, and secure boot enforcement |
Pinout & Package
SPC5746BK1AMMH2 is housed in a 256-pin MAPBGA package (package code MJ), 14 mm × 14 mm, 0.8 mm pitch, RoHS-compliant, with thermal pad exposed on underside for enhanced heat dissipation in automotive under-hood environments.
| 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 5.0 V supplies for I/O banks; enable mixed-voltage interfacing with sensors, actuators, and legacy ECUs |
| VDD_LV | Core logic supply input | 1.2–1.32 V supply for e200z4/z2 cores and internal logic; requires low-ESR decoupling per NXP layout guidelines |
| FXOSC_IN / FXOSC_OUT | Main crystal oscillator interface | Supports 8–40 MHz external crystal for primary clock source; essential for FMPLL reference and system timing stability |
| SXOSC_IN / SXOSC_OUT | 32 kHz real-time clock crystal interface | 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 domains; compatible with external watchdogs and power-supply monitors |
| JTAG_TCK / TMS / TDI / TDO / TRST_B | Nexus Class 3+ debug interface | IEEE-ISTO 5001-2008 compliant; enables real-time trace, core halting, and safety-critical debug without disrupting safety partitions |
Key Features
| Feature | Design Value |
|---|---|
| Dual-core asymmetric architecture | Enables separation of safety-critical (z4) and non-safety (z2) tasks within a single die, reducing inter-ECU communication latency |
| End-to-end ECC on all bus masters | SECDED protection across 64-bit data + 29-bit address paths ensures reliable execution in high-radiation automotive environments |
| Hardware Security Module v2 (HSMv2) | Offloads AES-128/256, SHA-256, RSA-2048, and ECC operations; supports secure boot, key injection, and OTA update authentication |
| Configurable I/O domains | Allows independent voltage and slew-rate configuration per peripheral group (e.g., CAN, LIN, Ethernet), optimizing EMI and signal integrity |
| FlexRay 2.1 dual-channel controller | Supports time-triggered communication with 10 Mbit/s data rate and 128 MB message buffer - required for x-by-wire systems |
Applications
| Powertrain Control Unit (PCU) | Advanced Chassis Controller |
|---|---|
Use Scenario: Real-time combustion timing, fuel injection, and turbocharger actuation in gasoline/diesel engines. IC Role / Device Role / Timing Role: Primary compute engine executing ASIL-B safety-critical control loops at ≤1 ms cycle time with deterministic interrupt latency. Use Value: Dual-core isolation prevents infotainment software faults from compromising engine torque management; HSMv2 secures calibration updates. |
Use Scenario: Integrated brake-by-wire, steer-by-wire, and suspension damping coordination in ADAS-enabled vehicles. IC Role / Device Role / Timing Role: Central domain controller synchronizing FlexRay, CAN FD, and Ethernet traffic with sub-10 µs jitter for time-triggered actuation. Use Value: FMPLL + RTC + FCCU enable precise timestamping and fault containment across redundant sensor fusion paths. |
| Vehicle Domain Controller | Electric Powertrain Inverter Control |
Use Scenario: Consolidating body, lighting, HVAC, and gateway functions into a single high-integration ECU. IC Role / Device Role / Timing Role: Multi-OS capable platform hosting AUTOSAR Classic and Adaptive partitions with SMPU-enforced memory isolation. Use Value: 384 KB ECC SRAM and 3 MB flash support large middleware stacks while maintaining ASIL-B compliance for critical services. |
Use Scenario: Closed-loop motor control and IGBT/SiC gate driving in traction inverters for BEVs/PHEVs. IC Role / Device Role / Timing Role: High-resolution PWM generation via eMIOS with cross-triggered ADC sampling for current/voltage feedback. Use Value: 12-bit ADC + BCTU synchronization achieves <1% current measurement error at 20 kHz switching frequencies. |
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 |
|---|---|---|---|
| MPC5748G | Higher flash (4 MB) and RAM (512 KB); adds third e200z2 core but no HSMv2; lacks FlexRay | Better suited for complex gateway or telematics where security is handled externally; not ASIL-B certified out-of-box | Choose MPC5748G only if FlexRay is unnecessary and HSM can be omitted or implemented externally |
| SPC58NG84C3 | Tri-core (z7+z7+z4), 8 MB flash, 2 MB RAM, HSMv3, ASIL-D ready; larger 324 BGA package | Targeted at zonal controllers requiring higher compute density and full ASIL-D decomposition | Select SPC58NG84C3 when scaling beyond ASIL-B or consolidating multiple ECUs into one high-integration domain controller |
Compared with MPC5748G and SPC58NG84C3, the SPC5746BK1AMMH2 delivers optimal balance of ASIL-B certification, FlexRay/CAN FD/Ethernet integration, and 256-pin footprint - making it the preferred choice for mid-tier powertrain and chassis controllers where cost, thermal envelope, and safety certification are tightly coupled.
Availability
SPC5746BK1AMMH2 is available at Aetrix Electronics and suitable for automotive powertrain control, chassis domain management, vehicle gateway systems, and electric inverter control requiring stable component supply across extended product lifecycles.
Supply support for SPC5746BK1AMMH2 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 reliability.
The SPC5746BK1AMMH2 belongs to NXP's SPC57 family of automotive MCUs, engineered specifically for ASIL-B powertrain and chassis control - emphasizing deterministic real-time performance, hardware-based security, and multi-protocol integration in harsh environments.
FAQ
What is the package type and pin count of the SPC5746BK1AMMH2?
The SPC5746BK1AMMH2 uses a 256-pin MAPBGA package (code MJ), measuring 14 mm × 14 mm with 0.8 mm pitch and an exposed thermal pad. This package is qualified for automotive under-hood operation up to 125°C ambient and supports standard reflow profiles per J-STD-020.
Does the SPC5746BK1AMMH2 support CAN FD, and how many channels are available?
Yes, the SPC5746BK1AMMH2 integrates eight FlexCAN3 modules, all supporting CAN FD with bit rates up to 5 Mbit/s in FD mode. Each channel is independently configurable for classic CAN or CAN FD frames, with dedicated message RAM and acceptance filtering.
Is the SPC5746BK1AMMH2 certified to ISO 26262, and at what ASIL level?
The SPC5746BK1AMMH2 is certified to ISO 26262:2018 for functional safety at ASIL-B. Certification covers the MCU core, memory subsystem, clocking, reset, and safety mechanisms including FCCU, SMPU, and ECC - documented in NXP's safety manual (UM10842).
What debug interface does the SPC5746BK1AMMH2 provide, and is Nexus support included?
The SPC5746BK1AMMH2 provides IEEE-ISTO 5001-2008 Nexus Class 3+ debug support via JTAG/cJTAG pins. Both e200z4 and e200z2 cores implement Nexus trace, enabling real-time instruction tracing, data watchpoints, and safety-aware debugging without violating partition boundaries.
What is the maximum operating temperature range for the SPC5746BK1AMMH2?
The SPC5746BK1AMMH2 is rated for operation from –40°C to +125°C ambient temperature (Ta), with junction temperature (Tj) up to +150°C. This rating applies to the full specification set including flash programming, real-time execution, and peripheral operation under automotive load conditions.
SPC5746BK1AMMH2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 100-LFBGA
- Series:
- MPC57xx
- Packaging:
- Bulk
- 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:
- -
- Program Memory Size:
- 3MB (3M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 64K x 8
- RAM Size:
- 384K 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:
SPC5746BK1AMMH2 FAQ
1.How can I place an order for SPC5746BK1AMMH2 through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC5746BK1AMMH2 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 SPC5746BK1AMMH2 reliable?
The price and inventory of SPC5746BK1AMMH2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC5746BK1AMMH2 is usually 5 days.
3.What payment methods are accepted for SPC5746BK1AMMH2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC5746BK1AMMH2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC5746BK1AMMH2?
SPC5746BK1AMMH2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC5746BK1AMMH2 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 SPC5746BK1AMMH2?
For technical support, including SPC5746BK1AMMH2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC5746BK1AMMH2 requirements.
6.How does Aetrix verify that SPC5746BK1AMMH2 is sourced from the original manufacturer or authorized distributors?
All SPC5746BK1AMMH2 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 SPC5746BK1AMMH2 meets industry standards.
7.What is the process for return or replacement of SPC5746BK1AMMH2?
All SPC5746BK1AMMH2 units undergo pre-shipment inspection (PSI). If there is an issue with SPC5746BK1AMMH2, 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 SPC5746BK1AMMH2 part is unused and in its original packaging.
Return procedure for SPC5746BK1AMMH2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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