My Inquiry
My Account
NXP Semiconductors SPC5746BK1MMJ6
- Part No.:
- SPC5746BK1MMJ6
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 256-LBGA
- Datasheet:
-
SPC5746BK1MMJ6.pdf
- Description:
- IC MCU 32BIT 3MB FLSH 256MAPPBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,038
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SPC5746BK1MMJ6 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 FlexCAN FD (8 channels), Ethernet AVB/1588, and dual-channel FlexRay. It targets ASIL-B safety-critical powertrain and chassis control units.
For engineers reviewing the SPC5746BK1MMJ6 datasheet, SPC5746BK1MMJ6 pinout, SPC5746BK1MMJ6 application, or SPC5746BK1MMJ6 equivalent, key selection criteria include dual-core deterministic timing, hardware security module (HSMv2), functional safety certification, and 256-pin MAPBGA packaging for high I/O density in automotive ECU designs.
Technical Context
The SPC5746BK1MMJ6 implements a tightly coupled dual-CPU architecture: the e200z4 core handles real-time control and floating-point computation, while the e200z2 core manages communication stacks and background tasks. Both cores share memory via a crossbar switch and are protected by a System Memory Protection Unit (SMPU) with 32 region descriptors.
Its clock system integrates FMPLL, multiple oscillators (FXOSC, SXOSC, FIRC, SIRC), and Clock Monitor Unit (CMU) for robust timing integrity. Safety-critical peripherals-including FCCU, HSMv2, and PASS-enable ISO 26262 ASIL-B compliance across boot, runtime, and fault recovery sequences.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Cores | Dual-core: 160 MHz e200z4 + 80 MHz e200z2, enabling parallel real-time control and comms processing |
| Flash Memory | 3 MB on-chip flash with triple-port controller, supporting concurrent read/write and RWW partitions for safe OTA updates |
| RAM | 384 KB SRAM across three ports, all protected by end-to-end SECDED ECC for data integrity |
| FlexCAN FD | 8 channels with CAN FD support up to 5 Mbps, enabling high-bandwidth vehicle network diagnostics and actuation |
| Ethernet Interface | 10/100 ENET complex with IEEE 1588 timestamping, AVB multi-queue support, and MII/RMII PHY interface |
| Safety Certification | ISO 26262 ASIL-B compliant at system level, with HSMv2, FCCU, and SMPU for fault detection and containment |
| Package | 256-pin MAPBGA (MJ package code), 17 mm × 17 mm, 0.8 mm pitch, optimized for automotive thermal and EMI requirements |
Pinout & Package
SPC5746BK1MMJ6 is housed in a 256-pin MAPBGA (package code MJ), 17 mm × 17 mm, 0.8 mm ball pitch, with dedicated power domains (VDD_HV_A/B/C, VDD_LV), differential clock inputs (FXOSC/SXOSC), and configurable I/O banks supporting FlexCAN, LINFlexD, and Ethernet PHY signals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_HV_A | High-voltage I/O supply | 3.3 V or 5.0 V supply for GPIO, ADC, and communication peripheral I/O buffers |
| VDD_LV | Core logic supply | 1.2–1.32 V regulated supply for e200z4/z2 CPU cores and internal logic |
| FXOSC_IN / FXOSC_OUT | Main crystal oscillator interface | 8–40 MHz external crystal connection for primary clock source with CMU monitoring |
| SXOSC_IN / SXOSC_OUT | 32 kHz crystal oscillator interface | Low-power RTC clock source, enabling wake-up from deep sleep modes |
| CAN0_TX / CAN0_RX | FlexCAN0 differential transceiver interface | Direct connection to CAN FD physical layer; supports bit rates up to 5 Mbps |
| ENET_MDC / ENET_MDIO | IEEE 802.3 management interface | Configures Ethernet PHY registers via SMI protocol for AVB and 1588 initialization |
| JTAG_TCK / JTAG_TMS / JTAG_TDI / JTAG_TDO | Nexus Class 3+ debug interface | Supports real-time trace, breakpoint, and core-level debugging per IEEE-ISTO 5001-2008 |
Key Features
| Feature | Design Value |
|---|---|
| Dual-core lockstep option | Configurable e200z4/e200z2 pairing enables time-triggered execution and redundancy for ASIL-B functions |
| HSMv2 security engine | Hardware-accelerated cryptographic operations (AES-128/256, SHA-256, RSA) and secure boot with key lifecycle management |
| Fault Collection and Control Unit (FCCU) | Centralized fault logging, classification, and response triggering (e.g., safe state entry, reset, interrupt) per ISO 26262 requirements |
| Triple-port flash controller | Enables simultaneous CPU fetch, DMA write, and background erase-critical for zero-downtime firmware updates |
| Configurable I/O domains | Independent voltage and slew-rate control per I/O group (e.g., 5 V FlexCAN, 3.3 V Ethernet, 1.8 V LIN) reduces external level-shifting |
| WKPU wake-up controller | Monitors up to 64 GPIO pins for edge-triggered wake events during STOP/STANDBY modes, minimizing system power |
Applications
| Powertrain Control Unit (PCU) | Advanced Driver Assistance Systems (ADAS) Domain Controller |
|---|---|
Use Scenario: Real-time combustion timing, fuel injection, and turbocharger control in gasoline/diesel engines under extreme temperature and EMI conditions. IC Role / Device Role / Timing Role: Primary MCU executing deterministic control loops at ≤100 µs intervals using e200z4 core; e200z2 handles CAN FD diagnostics and calibration traffic. Use Value: End-to-end ECC on flash/SRAM prevents silent corruption in safety-critical actuator commands; ASIL-B compliance satisfies OEM powertrain certification requirements. |
Use Scenario: Sensor fusion hub aggregating radar, camera, and ultrasonic data for adaptive cruise control and automatic emergency braking. IC Role / Device Role / Timing Role: Central processing node managing time-synchronized data ingestion via FlexCAN FD and Ethernet AVB, with precise 1588 timestamping for sensor alignment. Use Value: Dual-channel FlexRay supports legacy vehicle bus integration; 8 FlexCAN FD channels enable high-throughput V2X messaging without software stack bottlenecks. |
| Electric Vehicle Battery Management System (BMS) | Chassis Control Module (CCM) |
Use Scenario: High-voltage battery pack monitoring, cell balancing, thermal management, and isolation diagnostics in 400–800 V EV platforms. IC Role / Device Role / Timing Role: Safety-certified host processor interfacing with isolated ADCs and digital isolators; HSMv2 secures over-the-air update authentication. Use Value: 384 KB ECC-protected SRAM ensures integrity of state-of-charge (SOC) and state-of-health (SOH) calculations; FCCU detects and contains memory faults before propagation. |
Use Scenario: Integrated brake-by-wire, steering angle control, and suspension damping coordination requiring sub-millisecond latency and fail-operational redundancy. IC Role / Device Role / Timing Role: Dual-core deterministic scheduler: e200z4 runs torque vectoring algorithms; e200z2 handles LINFlexD communication with wheel-end actuators. Use Value: SMPU enforces strict memory partitioning between safety and non-safety software partitions; WKPU enables rapid wake-from-sleep for predictive braking activation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPC5746C | Same die, identical core configuration, flash, RAM, and peripheral set; differs only in qualification status (SPC5746BK1MMJ6 is production-qualified, MPC5746C is reference part number) | No functional difference; MPC5746C used in documentation and evaluation, SPC5746BK1MMJ6 is orderable production part | Select SPC5746BK1MMJ6 for volume production; MPC5746C is not orderable and lacks automotive qualification markings |
| SPC574SxxK1MMJ6 | Single-core variant (e200z4 only), 2 MB flash, 256 KB SRAM, 6 FlexCAN FD channels, no FlexRay or Ethernet | Targeted at cost-sensitive body control modules where dual-core and high-speed networking are unnecessary | Choose only if dual-core processing, Ethernet AVB, or FlexRay are not required; lacks full ASIL-B certification scope of SPC5746BK1MMJ6 |
Compared with MPC5746C and SPC574SxxK1MMJ6, the SPC5746BK1MMJ6 delivers full dual-core deterministic performance, complete automotive qualification (S-grade), and the broadest peripheral set-including FlexRay and Ethernet AVB-making it the only choice for next-generation domain controllers requiring consolidated compute, safety, and connectivity.
Availability
SPC5746BK1MMJ6 is available at Aetrix Electronics and suitable for automotive powertrain control, ADAS domain controllers, electric vehicle BMS, and chassis control modules requiring stable component supply across extended product lifecycles.
Supply support for SPC5746BK1MMJ6 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 SPC5746BK1MMJ6 belongs to NXP's SPC57 family of automotive MCUs, designed specifically for ASIL-B and ASIL-D safety-critical applications in powertrain, chassis, and advanced driver assistance systems.
FAQ
What is the core architecture of the SPC5746BK1MMJ6?
The SPC5746BK1MMJ6 features a dual-core Power Architecture® implementation: a 160 MHz e200z4 CPU with single-precision floating-point unit and 8 KB instruction cache, plus an 80 MHz e200z2 CPU with variable-length encoding (VLE) for compact code footprint. Both cores operate independently but share memory resources through a crossbar switch and are protected by end-to-end ECC.
Does the SPC5746BK1MMJ6 support CAN FD, and how many channels are available?
Yes, the SPC5746BK1MMJ6 supports CAN FD on all eight FlexCAN modules, each capable of bit rates up to 5 Mbps. This enables high-bandwidth diagnostic, calibration, and control messaging in modern vehicle networks. The CAN FD implementation includes flexible data length, CRC enhancement, and error confinement per ISO 11898-1:2015.
What safety certifications apply to the SPC5746BK1MMJ6?
The SPC5746BK1MMJ6 is qualified to ISO 26262 ASIL-B at the system level. Its safety mechanisms include Hardware Security Module v2 (HSMv2), Fault Collection and Control Unit (FCCU), System Memory Protection Unit (SMPU), and end-to-end ECC on all memory and bus transactions-enabling certified safe operation in powertrain and chassis applications.
What package type and pin count does the SPC5746BK1MMJ6 use?
The SPC5746BK1MMJ6 uses a 256-ball MAPBGA package (package code MJ), measuring 17 mm × 17 mm with 0.8 mm ball pitch. This package supports automotive thermal dissipation requirements and provides dedicated I/O banks for FlexCAN, LINFlexD, Ethernet, and general-purpose GPIO, with separate power domains for HV and LV supplies.
Is Ethernet functionality included in the SPC5746BK1MMJ6, and what standards does it support?
Yes, the SPC5746BK1MMJ6 integrates a full 10/100 Ethernet complex supporting IEEE 802.3, IEEE 1588-2008 Precision Time Protocol (PTP) timestamping, Audio Video Bridging (AVB) with multi-queue scheduling, and both MII and RMII PHY interfaces-enabling time-sensitive networking for ADAS and domain controller applications.
SPC5746BK1MMJ6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 256-LBGA
- Series:
- MPC57xx
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- e200z4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 160MHz
- Connectivity:
- CANbus, Ethernet, FlexRay, I2C, LINbus, SPI
- Peripherals:
- DMA, I2S, POR, WDT
- Number of I/O:
- 178
- 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:
SPC5746BK1MMJ6 FAQ
1.How can I place an order for SPC5746BK1MMJ6 through Aetrix?
Please submit a Request for Quotation (RFQ) for SPC5746BK1MMJ6 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 SPC5746BK1MMJ6 reliable?
The price and inventory of SPC5746BK1MMJ6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPC5746BK1MMJ6 is usually 5 days.
3.What payment methods are accepted for SPC5746BK1MMJ6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPC5746BK1MMJ6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPC5746BK1MMJ6?
SPC5746BK1MMJ6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPC5746BK1MMJ6 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 SPC5746BK1MMJ6?
For technical support, including SPC5746BK1MMJ6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPC5746BK1MMJ6 requirements.
6.How does Aetrix verify that SPC5746BK1MMJ6 is sourced from the original manufacturer or authorized distributors?
All SPC5746BK1MMJ6 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 SPC5746BK1MMJ6 meets industry standards.
7.What is the process for return or replacement of SPC5746BK1MMJ6?
All SPC5746BK1MMJ6 units undergo pre-shipment inspection (PSI). If there is an issue with SPC5746BK1MMJ6, 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 SPC5746BK1MMJ6 part is unused and in its original packaging.
Return procedure for SPC5746BK1MMJ6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SPC5746BK1MMJ6 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
