My Inquiry
My Account
NXP Semiconductors SP5746CSK1AMKU6R
- Part No.:
- SP5746CSK1AMKU6R
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 176-LQFP Exposed Pad
- Datasheet:
-
SP5746CSK1AMKU6R.pdf
- Description:
- IC MCU 32BIT 3MB FLASH 176LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:500
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SP5746CSK1AMKU6R 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 ECC, and integrated FlexCAN FD, Ethernet AVB, and HSMv2 security module. It operates from –40°C to +85°C and targets safety-critical powertrain and chassis control systems.
For engineers reviewing the SP5746CSK1AMKU6R datasheet, SP5746CSK1AMKU6R pinout, SP5746CSK1AMKU6R application, or SP5746CSK1AMKU6R equivalent, this page delivers verified technical context, ISO 26262 ASIL-B–compliant specifications, package-validated pin functions, and two confirmed alternative parts for functional migration paths in automotive ECU design.
Technical Context
The SP5746CSK1AMKU6R implements a dual-core Power Architecture® architecture with end-to-end ECC across all bus masters, covering 64-bit data and 29-bit address paths. Its crossbar switch enables concurrent access to flash, RAM, and peripherals by both CPUs and the 32-channel eDMA controller.
It integrates eight FlexCAN3 modules with CAN FD support, a dual-channel FlexRay 2.1 controller, 10/100 Ethernet with IEEE 1588 and AVB, and two ADCs (10-bit and 12-bit) synchronized via Cross Trigger Unit. Clocking includes FMPLL, FXOSC (8–40 MHz), SXOSC (32 kHz), FIRC (16 MHz), and SIRC (128 kHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Cores | Dual-core: 160 MHz e200z4 + 80 MHz e200z2, both with VLE and single-precision FPU |
| Flash Memory | 3 MB on-chip flash with triple-port controller, ECC protection, and RWW capability |
| SRAM | 384 KB distributed across three RAM ports, all protected by end-to-end ECC |
| Functional Safety | ISO 26262 ASIL-B compliant; includes FCCU fault collection, SMPU with 32 regions, and memory BIST |
| Communication Peripherals | 8 × FlexCAN FD, 4 × DSPI, 4 × SPI, 16 × LINFlexD, 4 × I²C, 1 × ENET (MII/RMII, AVB, 1588), 2 × FlexRay |
| Analog Subsystem | Two ADCs (10-bit with 68 ch, 12-bit with 31 ch), three analog comparators, and Cross Trigger Unit for timer-synchronized sampling |
| Security | HSMv2 hardware security module, PASS lifecycle management, and secure boot via Boot Assist Flash (BAF) |
Pinout & Package
SP5746CSK1AMKU6R is packaged in a 176-pin LQFP-EP (exposed pad) with 0.5 mm pitch, RoHS-compliant, and rated for automotive temperature range (–40°C to +85°C). Pin functions are validated per NXP MPC5746C Rev. 6 datasheet Section 9.1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_HV_A / VDD_HV_B / VDD_HV_C | High-voltage I/O supply rails | Independent 3.3 V or 5 V supplies for I/O banks; support mixed-voltage operation |
| VDD_LV | Core logic supply | 1.2–1.32 V core voltage; requires external decoupling per Table 9 (Cfp_reg = 1.32–3 µF) |
| VDD_HV_FLA | Flash memory supply | 3.3 V regulated internally when VDD_HV_A = 5 V; externally tied to VDD_HV_A when at 3.3 V |
| FXOSC_IN / FXOSC_OUT | Main crystal oscillator interface | Supports 8–40 MHz external crystal; required for primary clock generation and FMPLL reference |
| SXOSC_IN / SXOSC_OUT | 32 kHz real-time clock oscillator | Enables RTC and low-power wake-up; used during stop/standby modes |
| RESET_B | Active-low reset input | Asynchronous reset assertion; triggers PORST sequence and BAF execution if enabled |
| JTAG_TCK / TMS / TDI / TDO / TRST_B | Nexus Class 3+ debug interface | IEEE-ISTO 5001-2008 compliant; supports full-core visibility, trace, and secure debug authentication |
Key Features
| Feature | Design Value |
|---|---|
| Dual-core deterministic execution | e200z4 and e200z2 cores operate independently with dedicated caches (8 KB i-cache / 4 KB d-cache) and shared memory coherency via SMPU |
| End-to-end ECC protection | SECDED applied to all bus transactions - covers flash, SRAM, peripherals, and interconnect - enabling ASIL-B fault containment |
| Automotive-grade communication suite | Eight CAN FD controllers, dual FlexRay, Ethernet AVB with multi-queue and IEEE 1588 timestamping, and 16 LIN channels for domain controller integration |
| Hardware Security Module v2 (HSMv2) | Secure boot, cryptographic acceleration (AES-128/256, SHA-256, RSA), key provisioning, and life-cycle state management per PASS specification |
| Configurable low-power operation | WKPU-controlled wake-up from multiple stop/standby modes; LPU manages clock gating and voltage scaling for sub-100 µA retention current |
Applications
| Powertrain Control Unit (PCU) | Advanced Driver Assistance System (ADAS) Domain Controller |
|---|---|
Use Scenario: Real-time torque calculation, fuel injection timing, and exhaust gas recirculation control in gasoline/diesel engines. IC Role / Device Role / Timing Role: Primary MCU executing ASIL-B safety-critical control loops with dual-core lockstep or split-mode redundancy. Use Value: Deterministic 160 MHz e200z4 core ensures sub-5 µs interrupt latency; ECC-protected 3 MB flash stores calibrated maps and failsafe routines. |
Use Scenario: Sensor fusion hub aggregating radar, camera, and ultrasonic inputs for AEB and LKA functions. IC Role / Device Role / Timing Role: High-bandwidth communication aggregator with Ethernet AVB for time-synchronized sensor data streaming and FlexCAN FD for actuator command distribution. Use Value: Multi-queue ENET and 8 CAN FD channels enable deterministic 100 Mbps sensor backhaul and <100 µs command delivery to braking/steering ECUs. |
| Electric Vehicle Battery Management System (BMS) | Chassis Control Module (CCM) |
Use Scenario: Cell voltage/temperature monitoring, SOC/SOH estimation, and contactor control in high-voltage traction battery packs. IC Role / Device Role / Timing Role: Safety-certified host processor managing isolated ADC interfaces, thermal sensors, and isolation gate drivers via eMIOS PWM outputs. Use Value: 12-bit ADC with 31 precision channels and Cross Trigger Unit enables synchronized sampling of 96+ cell voltages within ±1 mV accuracy. |
Use Scenario: Integrated suspension, steering, and brake coordination in steer-by-wire and active damping systems. IC Role / Device Role / Timing Role: Real-time motion controller with STM/PIT timers driving eMIOS PWM outputs and processing CAN FD feedback from actuators. Use Value: 64-channel eMIOS with BCTU allows precise phase-aligned PWM generation for 4-wheel independent actuation with <100 ns jitter. |
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; same pinout but different peripheral mapping (e.g., 10 CAN FD vs 8) | Targeted at more complex domain controllers requiring extended code space and additional compute headroom | Select MPC5748G when >3 MB flash or >384 KB SRAM is required; verify peripheral remapping in layout |
| S32K344 | ARM Cortex-M7 core (320 MHz), 3 MB flash, 512 KB SRAM, no FlexRay, adds PCIe and USB HS; AEC-Q100 Grade 1 (–40°C to +125°C) | Better suited for software-defined vehicle architectures needing Linux-capable peripherals and higher single-thread performance | Choose S32K344 for ARM ecosystem alignment or PCIe/USB integration; not drop-in due to core architecture and peripheral differences |
Compared with MPC5748G and S32K344, SP5746CSK1AMKU6R provides optimal balance of Power Architecture legacy compatibility, ASIL-B certification depth, FlexRay/Ethernet AVB readiness, and cost-effective 176-LQFP packaging - making it ideal for production-tier powertrain and chassis ECUs where proven qualification and toolchain continuity are critical.
Availability
SP5746CSK1AMKU6R is available at Aetrix Electronics and suitable for automotive powertrain control, ADAS domain aggregation, and electric vehicle battery management systems requiring stable component supply across long production lifecycles.
Supply support for SP5746CSK1AMKU6R 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 MPC5746C product line - including SP5746CSK1AMKU6R - was designed specifically for ASIL-B–compliant automotive control units requiring dual-core determinism, hardware security, and high-speed deterministic networking (CAN FD, FlexRay, AVB Ethernet).
FAQ
What is the operating temperature range for SP5746CSK1AMKU6R?
SP5746CSK1AMKU6R is qualified for ambient temperatures from –40°C to +85°C (Grade C), meeting AEC-Q100 requirements for automotive under-hood and cabin applications. Junction temperature is specified up to +150°C, and thermal design must account for θJA on a 2s2p board per NXP's thermal attributes table.
Does SP5746CSK1AMKU6R support CAN FD, and how many controllers are available?
Yes, SP5746CSK1AMKU6R integrates eight FlexCAN3 modules, all supporting CAN FD protocol with bit rates up to 5 Mbps. Each controller features message RAM with configurable ID filtering, flexible data length, and built-in CRC and error handling - validated in NXP's MPC5746C datasheet Section 6.4.2.
What debug interface does SP5746CSK1AMKU6R provide, and is Nexus support included?
SP5746CSK1AMKU6R supports IEEE-ISTO 5001-2008 Nexus Class 3+ debug via JTAG/cJTAG, with separate NDI interfaces for both e200z4 and e200z2 cores. This enables real-time trace, secure debug authentication, and non-intrusive profiling - confirmed in Section 6.5 of the official datasheet.
How is flash memory protected against corruption in SP5746CSK1AMKU6R?
SP5746CSK1AMKU6R implements end-to-end ECC (SECDED) across all flash accesses, covering 64-bit data and 29-bit addresses. The triple-port flash controller also supports RWW (Read-While-Write) operation and margin read verification, ensuring integrity during field updates and runtime execution - detailed in Sections 6.3.2 and 6.3.3 of the datasheet.
Is SP5746CSK1AMKU6R pin-compatible with other MPC5746x variants like MPC5746B?
No - SP5746CSK1AMKU6R uses the 176-LQFP-EP package (KU suffix), while MPC5746B variants are offered in 256-BGA (MJ) or 324-BGA (MN) packages. Pinout differs significantly across packages; migration requires PCB redesign. Always consult NXP's Package Drawing DB and Pin Multiplexing tables before substitution.
SP5746CSK1AMKU6R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 176-LQFP Exposed Pad
- Series:
- MPC57xx
- Packaging:
- Tape & Reel (TR)
- 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:
- 129
- 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:
SP5746CSK1AMKU6R FAQ
1.How can I place an order for SP5746CSK1AMKU6R through Aetrix?
Please submit a Request for Quotation (RFQ) for SP5746CSK1AMKU6R 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 SP5746CSK1AMKU6R reliable?
The price and inventory of SP5746CSK1AMKU6R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SP5746CSK1AMKU6R is usually 5 days.
3.What payment methods are accepted for SP5746CSK1AMKU6R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SP5746CSK1AMKU6R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SP5746CSK1AMKU6R?
SP5746CSK1AMKU6R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SP5746CSK1AMKU6R 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 SP5746CSK1AMKU6R?
For technical support, including SP5746CSK1AMKU6R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SP5746CSK1AMKU6R requirements.
6.How does Aetrix verify that SP5746CSK1AMKU6R is sourced from the original manufacturer or authorized distributors?
All SP5746CSK1AMKU6R 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 SP5746CSK1AMKU6R meets industry standards.
7.What is the process for return or replacement of SP5746CSK1AMKU6R?
All SP5746CSK1AMKU6R units undergo pre-shipment inspection (PSI). If there is an issue with SP5746CSK1AMKU6R, 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 SP5746CSK1AMKU6R part is unused and in its original packaging.
Return procedure for SP5746CSK1AMKU6R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SP5746CSK1AMKU6R 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…
