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NXP Semiconductors SPC5746CSK1AMMJ6
- Part No.:
- SPC5746CSK1AMMJ6
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 256-LBGA
- Datasheet:
-
SPC5746CSK1AMMJ6.pdf
- Description:
- IC MCU 32BIT 3MB FLSH 256MAPPBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,280
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Product details
Overview
SPC5746CSK1AMMJ6 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 ASIL-B functional safety compliance and targets engine control units (ECUs), transmission control modules, and battery management systems in 125°C ambient environments.
For engineers reviewing the SPC5746CSK1AMMJ6 datasheet, SPC5746CSK1AMMJ6 pinout, SPC5746CSK1AMMJ6 application, or SPC5746CSK1AMMJ6 equivalent, this page delivers verified technical context, validated pin assignments for the 256 MAPBGA package, real-world automotive use cases, and two confirmed alternative parts with documented interface and memory differences.
Technical Context
The SPC5746CSK1AMMJ6 implements a dual-core Power Architecture® architecture with asymmetric processing: the e200z4 core handles high-integrity real-time tasks (e.g., torque calculation, safety monitoring) while the e200z2 manages communication stacks and diagnostics. Both cores operate under SMPU-protected memory regions and share access to peripherals via a crossbar switch.
Its clock system integrates FMPLL, FXOSC (8–40 MHz), SXOSC (32 kHz), FIRC (16 MHz), and SIRC (128 kHz), enabling precise timing for CAN FD, FlexRay, and Ethernet AVB. All bus masters-including CPUs, DMA, and peripherals-generate SECDED codes covering 64-bit data and 29-bit addresses for full end-to-end ECC protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Cores | 1 × 160 MHz e200z4 + 1 × 80 MHz e200z2, both supporting VLE encoding for reduced code footprint |
| Flash Memory | 3 MB on-chip flash with triple-port controller, EEE support, and RWW capability for concurrent read/erase |
| SRAM | 384 KB distributed across 8 RAM ports, all protected by end-to-end ECC |
| Functional Safety | ISO 26262 ASIL-B certified; includes FCCU fault collection, SMPU with 32 region descriptors, and BCTU |
| Communication Interfaces | 8 × FlexCAN3 with FD support, 4 × DSPI, 4 × I²C, 16 × LINFlexD, Dual-channel FlexRay, ENET (10/100 + IEEE 1588 + AVB) |
| Analog Subsystem | 10-bit ADC (68 ch), 12-bit ADC (31 ch), 3 analog comparators, Cross Trigger Unit for synchronized sampling |
| Security | HSMv2 hardware security module with PASS lifecycle management and secure boot via Boot Assist Flash (BAF) |
Pinout & Package
The SPC5746CSK1AMMJ6 is housed in a 256-pin MAPBGA package (17 mm × 17 mm, 0.8 mm pitch) with exposed thermal pad, qualified for automotive AEC-Q100 Grade 1 (–40°C to +125°C).
| 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 interfacing with sensors and actuators |
| VDD_LV | Core logic supply input | 1.2–1.32 V supply for e200z4/z2 cores; requires external decoupling per Table 9 (Cfp_reg = 1.32–3 µF) |
| FXOSC_IN / FXOSC_OUT | Main crystal oscillator interface | Supports 8–40 MHz external crystal; critical for FMPLL reference and system clock stability in engine control |
| SXOSC_IN / SXOSC_OUT | 32 kHz real-time clock crystal interface | Enables RTC operation during low-power modes; required for wake-up timing and time-stamped diagnostics |
| RESET_B | Active-low reset input | Asynchronous reset assertion resets both cores, peripherals, and memory controllers; compatible with external watchdogs |
| JTAG_TCK / JTAG_TDI / JTAG_TDO / JTAG_TMS / JTAG_TRST_B | Nexus Class 3+ debug interface | IEEE-ISTO 5001-2008 compliant; enables real-time trace, core-level breakpoints, and safety-critical debug without halting operation |
Key Features
| Feature | Design Value |
|---|---|
| Dual-core asymmetric execution | e200z4 handles safety-critical control loops at 160 MHz; e200z2 offloads protocol stacks (CAN FD, LIN, FlexRay), freeing z4 for deterministic response |
| End-to-end ECC protection | SECDED coverage across all bus masters, flash, SRAM, and peripheral registers-prevents silent data corruption in ASIL-B systems |
| Hardware Security Module v2 (HSMv2) | Accelerates AES-128/256, SHA-256, RSA-2048; supports secure boot, key provisioning, and over-the-air update authentication |
| Configurable I/O domains | FlexCAN, LINFlexD, and Ethernet pins assigned to dedicated voltage domains-enables independent power gating and noise isolation |
| Multi-queue Ethernet AVB | ENET complex supports IEEE 802.1AS time synchronization, 802.1Qav traffic shaping, and MII/RMII PHY interfaces for domain controller networks |
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 engines. IC Role / Device Role / Timing Role: Primary controller executing ASIL-B safety-critical algorithms with sub-microsecond interrupt latency via PIT-RTI and eMIOS. Use Value: Dual-core separation isolates safety logic (z4) from diagnostics (z2); 3 MB flash stores multiple calibration maps and OTA update partitions. |
Use Scenario: Gear shift scheduling, clutch pressure modulation, and torque converter lockup control in automatic transmissions. IC Role / Device Role / Timing Role: Central timing hub synchronizing CAN FD actuator commands, LIN sensor feedback, and FlexRay driveline data. Use Value: 8 FlexCAN FD channels handle high-bandwidth actuator control; STM timers provide nanosecond-accurate shaft position correlation. |
| Battery Management System (BMS) | Electric Power Steering (EPS) |
Use Scenario: Cell voltage/temperature monitoring, SOC/SOH estimation, and contactor control in high-voltage traction batteries. IC Role / Device Role / Timing Role: Safety monitor co-processor validating measurements from external ADCs and triggering ISO 26262-compliant shutdown sequences. Use Value: FCCU collects faults from ADC, comparators, and memory; HSMv2 signs telemetry for cloud-based battery analytics. |
Use Scenario: Motor current control, assist torque calculation, and road feel compensation in steer-by-wire architectures. IC Role / Device Role / Timing Role: Real-time motor control unit running field-oriented control (FOC) at 20 kHz PWM using eMIOS and SAI for current sensing. Use Value: 64-channel eMIOS generates synchronized PWM; SAI interfaces with isolated sigma-delta ADCs for high-resolution current feedback. |
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), larger SRAM (512 KB), adds third e200z2 core; no HSMv2-uses legacy HSM | Targeted at gateway ECUs requiring richer OS support and multi-protocol routing; lacks ASIL-B certification for safety islands | Select MPC5748G only when >3 MB flash and Linux-capable memory footprint are required; not drop-in for SPC5746CSK1AMMJ6 safety-critical zones |
| SPC58NG84C3 | ARM Cortex-R5F dual-core (300 MHz), 4 MB flash, 1.5 MB SRAM, ISO 26262 ASIL-D ready, no Power Architecture | Designed for next-gen zonal controllers needing higher compute density and AUTOSAR Adaptive support | Choose SPC58NG84C3 for ASIL-D pathfinding or ARM ecosystem alignment; requires full software porting and PCB redesign |
Compared with MPC5748G and SPC58NG84C3, the SPC5746CSK1AMMJ6 delivers optimal balance of ASIL-B-certified dual-core determinism, mature Power Architecture toolchain support, and production-proven 256 MAPBGA packaging-making it the preferred choice for cost-sensitive, high-volume engine and transmission ECUs.
Availability
SPC5746CSK1AMMJ6 is available at Aetrix Electronics and suitable for engine control units, transmission control modules, and battery management systems requiring stable component supply across extended automotive lifecycles.
Supply support for SPC5746CSK1AMMJ6 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 markets, with deep expertise in functional safety and automotive-grade microcontrollers.
The SPC5746CSK1AMMJ6 belongs to NXP's SPC57 family of automotive MCUs, designed specifically for ASIL-B powertrain and chassis applications where deterministic real-time performance, end-to-end ECC, and hardware-enforced security are mandatory.
FAQ
What is the operating temperature range for the SPC5746CSK1AMMJ6?
The SPC5746CSK1AMMJ6 is qualified for automotive Grade 1 operation, with a specified ambient temperature range of –40°C to +125°C and junction temperature up to +150°C. This rating is validated per AEC-Q100 and supports deployment in under-hood engine control units where thermal cycling and long-term reliability are critical. The device's internal voltage regulators and thermal monitoring units ensure stable operation across this full range.
Does the SPC5746CSK1AMMJ6 support CAN FD, and how many channels are available?
Yes, the SPC5746CSK1AMMJ6 integrates eight FlexCAN3 modules, all of which support CAN FD with bit rates up to 5 Mbps in the data phase. Each channel operates independently with configurable message buffers, FIFOs, and error counters-enabling simultaneous high-speed communication with multiple ECUs in modern vehicle networks without requiring external transceivers beyond physical layer components.
How is functional safety implemented in the SPC5746CSK1AMMJ6?
The SPC5746CSK1AMMJ6 achieves ISO 26262 ASIL-B compliance through integrated hardware features including a Fault Collection and Control Unit (FCCU), System Memory Protection Unit (SMPU) with 32 region descriptors, end-to-end ECC on all memory and buses, and dual-lockstep timer modules (STM). These elements enable runtime fault detection, memory access arbitration, and safe state transition-verified in NXP's certified safety manual for SPC5746C.
What debug interface does the SPC5746CSK1AMMJ6 provide, and is it production-safe?
The SPC5746CSK1AMMJ6 provides a Nexus Class 3+ debug interface compliant with IEEE-ISTO 5001-2008, accessible via JTAG pins. It supports non-intrusive real-time tracing, instruction-level breakpoints, and safety-critical debugging without halting core execution-making it suitable for both development and in-vehicle diagnostic use. The interface remains active in all non-reset states and is fully supported in production firmware builds.
Is the SPC5746CSK1AMMJ6 pin-compatible with other members of the MPC5746C family?
No-the SPC5746CSK1AMMJ6 uses the 256-pin MAPBGA package (MJ suffix), while other variants like SPC5746CSK1AMKU6 use 176-pin LQFP-EP (KU suffix). Pin assignments differ significantly between packages due to I/O bank allocation, power pin distribution, and peripheral multiplexing. Migration requires PCB redesign and signal integrity revalidation-even within the same family, package-specific layout rules apply.
SPC5746CSK1AMMJ6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 256-LBGA
- 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, I2C, LINbus, SAI, SPI, USB, USB OTG
- Peripherals:
- DMA, LVD, POR, WDT
- Number of I/O:
- 178
- Program Memory Size:
- 3MB (3M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 512K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 5.5V
- Data Converters:
- A/D 80x10b, 64x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
SPC5746CSK1AMMJ6 FAQ
1.How can I place an order for SPC5746CSK1AMMJ6 through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC5746CSK1AMMJ6 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 SPC5746CSK1AMMJ6 reliable?
The price and inventory of SPC5746CSK1AMMJ6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC5746CSK1AMMJ6 is usually 5 days.
3.What payment methods are accepted for SPC5746CSK1AMMJ6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC5746CSK1AMMJ6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC5746CSK1AMMJ6?
SPC5746CSK1AMMJ6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC5746CSK1AMMJ6 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 SPC5746CSK1AMMJ6?
For technical support, including SPC5746CSK1AMMJ6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC5746CSK1AMMJ6 requirements.
6.How does Aetrix verify that SPC5746CSK1AMMJ6 is sourced from the original manufacturer or authorized distributors?
All SPC5746CSK1AMMJ6 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 SPC5746CSK1AMMJ6 meets industry standards.
7.What is the process for return or replacement of SPC5746CSK1AMMJ6?
All SPC5746CSK1AMMJ6 units undergo pre-shipment inspection (PSI). If there is an issue with SPC5746CSK1AMMJ6, 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 SPC5746CSK1AMMJ6 part is unused and in its original packaging.
Return procedure for SPC5746CSK1AMMJ6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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