SPC5746CSK1MKU6 - Dual-Core 160MHz 3MB Flash MCU | NXP
MPN： SPC5746CSK1MKU6 ✓ 啟用中SPC5746CSK1MKU6 概覽
A microcontroller (MCU) is a single-chip computer that integrates a processor core, memory, and peripherals on one die, sitting at the top of the embedded hierarchy: MCU -> embedded processor -> integrated circuit -> semiconductor. The MPC574x family belongs to NXP's automotive-grade Qorivva/SPC5 line of Power Architecture-based MCUs designed for safety-critical body, gateway, and industrial control systems.
Key features of the SPC5746CSK1MKU6 include dual-core lockstep-capable processing for functional safety support, a hardware security module (HSM) that protects ECUs against attack scenarios, enhanced low-power modes for efficient operation, and rich mixed-signal peripherals including 10-bit and 12-bit ADCs. The device provides up to 147 GPIOs and operates from a 3.0 V to 3.6 V I/O supply across the -40 C to +125 C automotive temperature range.
Architecturally, the asymmetric dual-core e200 Power Architecture design allows the high-performance e200z4 core to run the main application while the e200z2 core handles diagnostics, communication stacks, or safety monitoring, improving determinism compared to single-core operation. According to NXP, the MPC574xB/C/G family provides a highly integrated, safe and secure single-chip solution for next-generation central body control, gateway, and industrial applications.
Typical applications include automotive central body control modules (BCM), vehicle network gateways handling CAN/LIN/FlexRay traffic, and industrial automation controllers requiring functional safety support and secure firmware storage.
Design consideration: the 176-LQFP package has a 0.5 mm pin pitch; verify your PCB fab supports this geometry and use the exposed pad for thermal relief and ground integrity.
This page synthesizes verified distributor pricing, drop-in family alternatives, pinout guidance, and practical design notes not consolidated in the manufacturer datasheet.
直接替換替代品，適用於 SPC5746CSK1MKU6 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： SPC5746CSK1MKU6 （相同外形與佔位） — 差異在於 ADC Resolution, Core Architecture, Number of I/Os, Operating Temperature, Product Family.
SPC5746BSK1MKU2
✅ 直接替換聯絡詢價
查看資料表 →SPC5748GHK0AMKU6
✅ 直接替換📋 參考替代品（不在目錄中）
SPC5744PFK1AMLQ9
✅ 直接替換📋 參考替代品（不在目錄中）
SPC5746RK1MLU3
✅ 直接替換📋 參考替代品（不在目錄中）
SPC5644AF0MLU1
✅ 直接替換聯絡詢價
查看資料表 →SPC5746CSK1MKU6 最大額定值與電氣特性
| Core Architecture | 32-bit dual-core e200z2 + e200z4 (Power Architecture) |
| Core Frequency | 80 MHz (e200z2) / 160 MHz (e200z4) |
| Program Memory (Flash) | 3 MB (3M x 8) |
| RAM | 384 KB |
| 封裝 | 176-LQFP (24x24 mm), exposed pad |
| 安裝類型 | Surface Mount |
| Number of I/Os | 147 (per family comparison data) |
| I/O Supply Voltage | 3 V to 3.6 V |
| ADC Resolution | 10-bit, 12-bit |
| 工作溫度 | -40 C to +125 C |
| Security | Hardware Security Module (HSM) |
| Functional Safety | Safety mechanism support (per NXP family description) |
| Product Family | MPC574xB/C/G (Qorivva/SPC5) |
| RoHS 狀態 | Compliant (per distributor listings) |
SPC5746CSK1MKU6 176-lqfp (24x24 mm), exposed pad 腳位配置指南
SPC5746CSK1MKU6（176-lqfp (24x24 mm), exposed pad 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： SPC5746CSK1MKU6.
請參閱 資料表 以查看完整腳位配置。
典型應用
SPC5746CSK1MKU6 適用於 6 應用s: Automotive Central Body Control Module (BCM), Vehicle Network Gateway, Industrial Automation Controllers, Secure ECU Firmware and Key Management, ADAS Domain Boundary and Sensor Hub Nodes, Low-Power Telematics and Always-On Nodes.
Automotive Central Body Control Module (BCM)
The SPC5746CSK1MKU6 fits central body control modules because it combines dual-core processing (e200z4 at 160 MHz for the application, e200z2 at 80 MHz for diagnostics) with 3 MB of Flash for large feature sets such as lighting, access, and wiper control. NXP explicitly positions the MPC574xB/C/G family for next-generation central body control. In this role the MCU drives 147 multiplexed GPIOs through external high-side drivers, samples load diagnostics via its 10/12-bit ADCs, and its hardware security module protects immobilizer and key-management functions. The exposed-pad 176-LQFP aids thermal dissipation in the confined BCM enclosure.
推薦
Vehicle Network Gateway
Gateway ECUs aggregate CAN, CAN FD, LIN, and Ethernet traffic, and the SPC5746CSK1MKU6 provides the deterministic headroom for this: the 160 MHz e200z4 core executes routing stacks while the 80 MHz e200z2 core independently handles network management and security tasks. Its 384 KB of on-chip RAM buffers message queues without external memory, and 3 MB of Flash stores firmware plus a hardware security module (HSM) for secure onboarding of ECUs, per NXP's family description. Typical designs pair it with NXP CAN transceivers (e.g., TJA1044) and Ethernet PHYs, using the MCU's DSPI and FlexRay-capable interface controllers for deterministic in-vehicle backbone communication.
推薦
Industrial Automation Controllers
In industrial control, the SPC5746CSK1MKU6 serves as a safety-supporting main controller: NXP lists industrial applications as a primary MPC574xB/C/G use case, citing functional safety support and enhanced low-power capability. The dual-core split lets one core execute the control loop (using eMIOS timers and 12-bit ADC feedback) while the second core supervises plausibility and communication. 3 MB Flash accommodates field-updatable application firmware plus a secure boot chain guarded by the hardware security module. The -40 C to +125 C rating and 3.0-3.6 V I/O operation match industrial 24 V systems front-ended by a 3.3 V buck regulator.
推薦
Secure ECU Firmware and Key Management
Any ECU that stores cryptographic keys or runs secure OTA updates benefits from the SPC5746CSK1MKU6's integrated hardware security module, which per NXP protects ECUs against various attack scenarios. The 3 MB Flash provides room for application code, bootloader, and key storage zones with hardware-enforced access control. In a secure-gateway or telematics ECU, the HSM performs AES/ECC operations offload from the 160 MHz e200z4 core, keeping the main application deterministic while cryptographic sessions run. The automotive -40 C to +125 C temperature range and 176-LQFP exposed-pad package fit standard ECU PCB processes without special thermal design.
推薦
ADAS Domain Boundary and Sensor Hub Nodes
While not an ADAS compute processor, the SPC5746CSK1MKU6 is often used at the domain boundary as a safe, secure data concentrator between sensor nodes and the central compute unit. Its dual-core 80/160 MHz pairing handles packet preprocessing and health monitoring, 384 KB RAM buffers sensor frames, and functional safety support aligns with ASIL-oriented architectures per NXP's family positioning. The 10/12-bit ADCs allow local analog telemetry from power and sensor supplies. Designs typically front it with a buck regulator and pair it with high-speed CAN FD transceivers, using the e200z2 core to supervise the safety-relevant data path.
推薦
Low-Power Telematics and Always-On Nodes
NXP highlights enhanced low-power capabilities across the MPC574xB/C/G family, providing increased functionality with more efficient operation. For telematics units and always-on body nodes that must wake on CAN/LIN activity while sipping current from the battery, the SPC5746CSK1MKU6 supports standby modes from which the 80 MHz e200z2 domain or wake logic restarts the system. The 3 MB Flash retains dual-bank images for OTA updates, and the HSM secures cellular-connected communication. Pairing with a low-quiescent-current SBC and partial-networking CAN transceiver achieves the microamp-level sleep budget these nodes require.
推薦
推薦產品摘要
工程參考資料，適用於 SPC5746CSK1MKU6 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | SPC5746BSK1MKU2 | SPC5748GHK0AMKU6 | SPC5744PFK1AMLQ9 | SPC5644AF0MLU1 |
|---|---|---|---|---|---|
| Package | 176-LQFP (24x24 mm), exposed pad | 176-LQFP - same | 176-LQFP - same (MKU6) | 176-LQFP - same | 176-LQFP - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core Configuration | Dual-core e200z2 80 MHz + e200z4 160 MHz | Dual-core, same family | Multi-core G-series, higher integration | Dual-core, lower memory grade | e200z0h + e200z4d, 120 MHz max |
| Operating Temperature | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C (A-grade class) | -40 C to +125 C |
主要差異化特點
- Integrated hardware security module (HSM) (對比SPC5644AF0MLU1)
- More RAM for gateway buffering (對比SPC5644AF0MLU1)
- Higher main core clock (對比SPC5644AF0MLU1)
- Flash cost-down path within same footprint (對比SPC5746BSK1MKU2)
設計說明
Power the SPC5746CSK1MKU6 from a clean 3.3 V rail within 3.0-3.6 V on the I/O supply. The MPC574x integrates internal LDOs for the core domain; place the required decoupling capacitors specified in the NXP reference manual directly on the VDD_LDO output pins with short, wide traces. Estimated: at 160 MHz with peripherals active, core current is typically in the hundreds of milliamps range (exact figure per datasheet power table), so budget the upstream buck for at least 500 mA headroom plus peripheral loads. Use a power SBC such as the MC33907 for automotive reset and wake supervision.
The 176-LQFP has a 0.5 mm pin pitch - confirm your fabrication house supports this geometry and specify solder-mask-defined or non-solder-mask-defined pads per IPC-7351 guidance for LQFP. The exposed pad on the package bottom must be soldered to a grounded copper keep-out with a via array (estimated: 5x5 via grid under the pad) to serve as the main ground and thermal path. Route JTAG/Nexus debug pins to a standard SPC5 debug connector during layout; adding them later on a 0.5 mm pitch board is very difficult.
Pin multiplexing is the most common integration error on this device: many of the 147 I/Os share functions across CAN, LIN, DSPI, eMIOS, and ADC channels, so always configure the SIUL multiplexing registers against the NXP reference manual tables, not assumptions from other MPC574x variants. Second pitfall: migrating code from the SPC5644 predecessor - the memory map and peripheral base addresses differ substantially despite architectural similarity. Third: never exceed 3.6 V on I/O rails during hot-plug or transient conditions; add TVS protection on external connector-facing lines.
合規資訊
Automotive-qualified MPC574x family part per NXP product positioning; RoHS compliance indicated by distributor listings. REACH, halogen-free, and conflict-minerals statuses should be confirmed on the NXP product page certificate of conformance.
