NXP Semiconductors

SPC5746CSK1MKU6 - Dual-Core 160MHz 3MB Flash MCU | NXP

部品番号: SPC5746CSK1MKU6 ✓ 生産中
在庫あり 1〜3営業日以内に発送
3 V to 3.6 V Vdss 176-LQFP (24x24 mm), exposed pad Package 80 MHz (e200z2) / 160 MHz (e200z4) Speed 3 MB (3M x 8) Memory
開始価格 $8.14 USD / 個
MOQ: 1 |
価格更新日: 2026-10-18
ボリューム価格
数量 単価 小計
1 $8.14 $8.14
10 $8.94 $89.40
100 $10.32 $1,032.00
500 $11.86 $5,930.00
1,000 $13.53 $13,530.00
ℹ️ すべての価格はUSDです

SPC5746CSK1MKU6 概要

The NXP Semiconductors SPC5746CSK1MKU6 is a 32-bit dual-core automotive microcontroller combining an e200z2 core at 80 MHz and an e200z4 core at 160 MHz, with 3 MB of on-chip Flash and 384 KB of RAM, housed in a 176-pin LQFP (24x24 mm) package with exposed pad.

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.

ドロップイン代替品: SPC5746CSK1MKU6 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。

このシリーズのバリエーション

同一シリーズでドロップイン互換のモデル: SPC5746CSK1MKU6 (同一形状・フットプリント) — 相違点: ADC Resolution, Core Architecture, Number of I/Os, Operating Temperature, Product Family.

NXP Semiconductors
ADC Resolution: 12-bit
Core Architecture: e200z4 Power Architecture
比較対象 SPC5746CSK1MKU6 →
NXP Semiconductors
ADC Resolution: 10 bit, 12 bit
Number of I/Os: 129 I/O
Operating Temperature: -40C to +125C
比較対象 SPC5746CSK1MKU6 →

クイック比較ツール — 並列比較する代替部品を選択:

SPC5746BSK1MKU2

✅ ドロップイン
NXP Semiconductors
📦 176-LQFP
e200z4 (Power Architecture) · 32-bit · 1 (single core) · 120 MHz · 3 MB (3M x 8) · 384 kB · 10 bit, 12 bit · 129 I/O

✓ 在庫あり

$17.25 / 個

データシートを見る →

SPC5748GHK0AMKU6

✅ ドロップイン
📦 176-LQFP
G-series with larger 4 MB Flash and additional cores/peripherals; identical MKU6 176-LQFP footprint

📋 参考代替品(カタログ未掲載)

SPC5744PFK1AMLQ9

✅ ドロップイン
📦 176-LQFP
lower-memory SPC5744 variant with different temperature/speed grade suffix; same 176-LQFP package per ETEI comparison

📋 参考代替品(カタログ未掲載)

SPC5746RK1MLU3

✅ ドロップイン
📦 176-LQFP
R-suffix larger Flash option (per Avaq spec comparison vs SPC5746C), same family and package

📋 参考代替品(カタログ未掲載)

SPC5644AF0MLU1

✅ ドロップイン
NXP Semiconductors
📦 176-LQFP
e200z4 Power Architecture · 1 (single core) · 150 MHz · VLE (Variable Length Encoding), superscalar 2-issue · 4 MB (4M x 8) · 192 KB (per Mouser listing summary) · 12-bit

✓ 在庫あり

$42.75 / 個

データシートを見る →

SPC5746CSK1MKU6 最大定格&電気的特性

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
パッケージ 176-LQFP (24x24 mm), exposed pad
実装タイプ 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
動作温度 -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 ステータス Compliant (per distributor listings)

SPC5746CSK1MKU6 176-lqfp (24x24 mm), exposed pad ピン配置ガイド

SPC5746CSK1MKU6 (176-lqfp (24x24 mm), exposed pad パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。

SPC5746CSK1MKU6 の 176-lqfp (24x24 mm), exposed pad パッケージピン配置図

詳細なピン配置データはありません: SPC5746CSK1MKU6.

詳細は データシート をご参照ください。

主な用途

SPC5746CSK1MKU6 の用途: 6 件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.

🌐

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.

🏭

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.

🎥

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.

🖥️

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.

📱

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.

What is the SPC5746CSK1MKU6 microcontroller?
The SPC5746CSK1MKU6 is an NXP 32-bit dual-core automotive microcontroller from the MPC574xB/C/G family, pairing an e200z2 core at 80 MHz with an e200z4 core at 160 MHz. It integrates 3 MB of Flash, 384 KB of RAM, a hardware security module, and 147 I/Os in a 176-pin LQFP (24x24 mm) package, targeting central body control, gateway, and industrial applications per NXP product information.
What is the price of SPC5746CSK1MKU6?
Pricing for the SPC5746CSK1MKU6 varies by distributor: LCSC lists it from $8.1380 per unit, while Heisener lists a unit price of $25.3712 as of October 2026. XAIPART pricing starts at $8.14 at quantity 1 with quantity breaks at 10, 100, 500, and 1000 pieces. All prices are as of 2026-10-18 and should be re-verified at order time since MCU pricing fluctuates with allocation cycles.
Is SPC5746CSK1MKU6 in stock and where can I buy it online?
Yes, the SPC5746CSK1MKU6 is in stock at multiple distributors: Heisener reported 17,220 pieces in stock, and LCSC lists the part as in-stock. XAIPART offers the part for order with same-day quoting. Distribution channels include Mouser, DigiKey, Newark, LCSC, and Heisener, so availability is strong as of October 2026; lead times from Heisener are listed as to be confirmed.
What is the difference between SPC5746CSK1MKU6 and SPC5748GHK0AMKU6?
Both parts share the same 176-pin LQFP (MKU6) package and the MPC574x dual-core architecture, but the SPC5748G provides a larger 4 MB Flash option and a triple-core configuration including an additional e200z4_2 core and Graphics/PSU peripherals in the G-series. The SPC5746C offers 3 MB Flash and 384 KB RAM. Choose the SPC5748G for graphics/advanced gateway features, or the 5746C when 3 MB Flash meets your needs at lower cost. Both are documented on NXP's MPC574xB/C/G family pages.
What is the difference between SPC5746CSK1MKU6 and SPC5746BSK1MKU2?
The SPC5746CSK1MKU6 and SPC5746BSK1MKU2 are same-family, same-package (176-LQFP) parts that differ mainly in Flash density and revision: the C-suffix part carries 3 MB Flash while the B-suffix variant carries 2 MB Flash with correspondingly smaller RAM. Because they share the SPC574x die family and identical 176-LQFP footprint, migration between them typically requires only a software memory map review, making the B-part a lower-memory cost-down option for the same PCB.
What is the best drop-in replacement for SPC5746CSK1MKU6?
The closest drop-in replacements are same-family NXP MPC574x devices in the identical 176-LQFP package: SPC5746BSK1MKU2 (2 MB Flash cost-down), SPC5744PFK1AMLQ9 (lower flash 5744 variant, same footprint), and SPC5748GHK0AMKU6 (4 MB flash upgrade). All are pin-compatible within the MPC574xB/C/G family, though software must be recompiled and the memory map revalidated. There is no true cross-brand drop-in for this automotive MCU class.
What is the best non-NXP (cross-brand) equivalent for SPC5746CSK1MKU6?
There is no genuine cross-brand drop-in equivalent for the SPC5746CSK1MKU6. Comparable 32-bit dual-core automotive MCUs from other vendors include STMicroelectronics SPC5 and Infineon AURIX families, but these use different cores, pinouts, and toolchains, so they require a full PCB redesign. NXP's own MPC574x family parts in 176-LQFP - such as SPC5746BSK1MKU2 or SPC5748GHK0AMKU6 - are the only pin-to-pin compatible alternatives, all sourced from the same NXP product family documentation.
Where can I download the SPC5746CSK1MKU6 datasheet PDF?
The SPC5746CSK1MKU6 datasheet and reference manual are available as free PDF downloads from the official NXP product page at nxp.com/part/SPC5746CSK1MKU6. Distributors such as DigiKey, Mouser, LCSC, and Octopart also link to the manufacturer datasheet from their product detail pages. NXP documents the MPC574xC under the MPC574xB/C/G family reference manual, which covers memory maps, electrical characteristics, and peripheral descriptions in detail.
Where can I find the SPC5746CSK1MKU6 pinout for the 176-LQFP package?
The complete SPC5746CSK1MKU6 pinout is defined in the MPC574xC device datasheet and reference manual downloadable from NXP's product page for this part. The pin functions are muxed (147 GPIOs multiplexed with CAN, LIN, FlexRay, DSPI, ADC, and eMIOS functions), so always consult the signal multiplexing tables in the NXP reference manual rather than a simplified diagram when assigning pins in your design.
What are the key specifications of SPC5746CSK1MKU6 that engineers should know?
The SPC5746CSK1MKU6 is a 32-bit dual-core MCU: e200z2 at 80 MHz plus e200z4 at 160 MHz, 3 MB Flash, 384 KB RAM, 147 I/Os, 10-bit/12-bit ADCs, a hardware security module, and 3.0-3.6 V I/O supply, packaged in 176-LQFP (24x24 mm) rated -40 C to +125 C. According to the NXP product page, the MPC574xB/C/G family targets safe, secure single-chip central body control and gateway applications.
When should I choose the SPC5746CSK1MKU6 over the SPC5744PFK1AMLQ9?
Choose the SPC5746CSK1MKU6 when your application needs the full 3 MB Flash, 384 KB RAM, and the dual e200z2+e200z4 core pairing with HSM security - typical for secure gateways and complex body controllers. Choose the SPC5744PFK1AMLQ9 when code/data footprint is smaller and BOM cost or power matters more, since it offers reduced memory in the same 176-LQFP footprint. Both share the MPC574x toolchain, so migrating later is a software-level change, not a PCB change.
Can SPC5644AF0MLU2 replace SPC5746CSK1MKU6?
Not as a drop-in. The SPC5644AF0MLU2 is a predecessor SPC5644 device that shares 176-lead LQFP packaging and the Power Architecture lineage, but its core configuration, peripheral set, memory map, and security features differ from the SPC5746C, and the pin muxing is not identical. Utmel lists the two as comparison candidates, not substitutes. Migration requires PCB pin review, schematic changes, and full software port - plan it as a redesign, not a replacement.
Is the SPC5746CSK1MKU6 suitable for functional safety (ISO 26262) gateway designs?
Yes, it is suitable as a foundation for safety-oriented designs: according to NXP, the MPC574xB/C/G family provides functional safety support alongside a hardware security module that protects ECUs against attack scenarios. The dual-core architecture enables supervisor/monitor partitioning between the 160 MHz e200z4 and 80 MHz e200z2 cores. However, confirm the exact safety certification level (e.g., ASIL target) supported for the C-variant in NXP's safety documentation before committing to a specific ASIL requirement in your safety case.
What supply voltage does the SPC5746CSK1MKU6 require?
The SPC5746CSK1MKU6 operates from a single 3.3 V nominal I/O supply with a permitted range of 3 V to 3.6 V, per family comparison data from Avaq. The MPC574x family integrates internal low-dropout regulators that generate the core voltage from the external 3.3 V rail, so no separate core supply rail is needed on the PCB - only appropriate decoupling on the main 3.3 V input and the internal regulator output pins as specified in the NXP reference manual.
What is the lifecycle status of SPC5746CSK1MKU6 and is it recommended for new designs?
The SPC5746CSK1MKU6 is an active, current-generation NXP part in the MPC574xB/C/G family, which NXP positions for next-generation central body control, gateway, and industrial applications - so it is fully recommended for new designs. Availability is healthy (Heisener reported 17,220 units in stock as of October 2026). For long-lifetime automotive programs, NXP typically offers extended longevity commitments on the SPC5/MPC574x automotive line; verify the longevity statement on nxp.com for your production window.

エンジニアリング参考データ: SPC5746CSK1MKU6 — 比較、設計ガイダンス、コンプライアンス情報。

選定ガイド

Choose the SPC5746CSK1MKU6 when you need a secure, safety-supporting dual-core automotive MCU with 3 MB Flash and 384 KB RAM in a hand-solderable 176-LQFP - the sweet spot for body controllers and gateways. Choose SPC5746BSK1MKU2 (same package, 2 MB Flash) to cut cost when your code image is smaller. Choose SPC5748GHK0AMKU6 for 4 MB Flash and richer G-series peripherals such as graphics-related accelerators. Choose SPC5744PFK1AMLQ9 for a lower-memory 5744 grade in the same footprint. Avoid trying to substitute SPC5644AF0MLUx parts directly: although architecturally related and also 176-LQFP, they lack the HSM, run slower (120 MHz), and differ in pin muxing - treat migration as a redesign. All MPC574x options share the NXP SPC5 toolchain, easing intra-family moves.

代替品との比較

パラメータ この製品 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

主な差別化要因

  • Integrated hardware security module (HSM) (vs SPC5644AF0MLU1)
  • More RAM for gateway buffering (vs SPC5644AF0MLU1)
  • Higher main core clock (vs SPC5644AF0MLU1)
  • Flash cost-down path within same footprint (vs SPC5746BSK1MKU2)

設計ノート

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.

コンプライアンス情報

RoHS
Compliant
REACH
Unknown
AEC-Q100
Qualified
鉛フリー
Yes
ハロゲンフリー
Unknown
紛争鉱物
Unknown

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.

データ検証日: 2026-10-18 — データはXAIPARTの部品エンジニアリングチームによって検証・管理されています

関連検索

SPC5746CSK1MKU6 SPC5746CSK1MKU6 datasheet NXP SPC5746CSK1MKU6 price SPC5746CSK1MKU6 176-LQFP pinout dual core 3MB flash automotive MCU 160MHz SPC5746CSK1MKU6 vs SPC5748GHK0AMKU6 SPC5746CSK1MKU6 drop-in replacement SPC5746B SPC5746CSK1MKU6 body control module MCU buy SPC5746CSK1MKU6 in stock what is the difference between SPC5746C and SPC5746B SPC5746CSK1MKU6 equivalent cross reference MPC574x gateway microcontroller HSM security

関連部品&用語

NXP Semiconductors SPC5746CSK1MKU6 MPC5746C MPC574xB/C/G family SPC5746BSK1MKU2 SPC5748GHK0AMKU6 SPC5644AF0MLU1 e200z4 core e200z2 core Power Architecture microcontroller hardware security module HSM functional safety 176-LQFP LQFP package family surface mount RoHS AEC-Q100 central body control vehicle gateway ECU CAN LIN FlexRay 12-bit ADC
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