S32K146 - 112MHz Cortex-M4F 1MB Flash MCU | NXP | Automotive
Teilenummer: S32K146 ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $6.5 | $6,50 |
| 10 | $5.95 | $59,50 |
| 100 | $5.2 | $520,00 |
| 500 | $4.65 | $2.325,00 |
| 1.000 | $4.1 | $4.100,00 |
S32K146 Übersicht
What is an automotive MCU? An automotive microcontroller is a specialized IC that manages electronic control units (ECUs) in vehicles, handling engine control, body electronics, and gateway communication. Automotive MCUs must meet stringent reliability, temperature, and safety requirements, typically certified to standards like AEC-Q100. Within the embedded processor hierarchy, the S32K146 sits as a general-purpose MCU for automotive body and gateway applications.
Key features include a 112 MHz Arm Cortex-M4F core with single-precision floating-point unit (FPU), 1 MB of program flash, 128 KB of SRAM, multiple FlexCAN modules supporting CAN FD, FlexIO for flexible serial protocol emulation, and CSEc hardware security for secure key storage and cryptographic operations. The device supports low-power modes for energy-efficient operation.
Technically, the S32K146 is built on a 40nm process balancing performance and power efficiency. It includes a memory protection unit (MPU) and error-correcting code (ECC) on both flash and SRAM for enhanced reliability. The MCU operates from a 2.7V to 5.5V supply and from -40C to +125C ambient, suitable for under-hood automotive environments. Available packages include LQFP-64, LQFP-100, and LQFP-144, enabling scalability within the S32K1xx family.
Typical applications include automotive body control modules, gateway modules, industrial automation controllers, and HVAC/blower control. CAN FD support enables high-speed in-vehicle networking with payloads up to 64 bytes, while FlexIO emulates UART, SPI, I2C, and other serial protocols without CPU overhead.
When designing with the S32K146, use the S32K1xx reference manual for register details and the S32 Design Studio IDE for development. Ensure proper decoupling and power supply sequencing; note that S32K146 consumes approximately 10% more power than the S32K144 in both run and low-power modes, affecting thermal design.
Drop-in-Alternativen für S32K146 – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
S32K148
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
S32K144
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
S32K142
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
S32K144W
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
S32K344
⚡ Gleiches Gehäuse ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$8.1 / Stück
Datenblatt ansehen →MPC5741PK1AMLQ8R
⚡ Gleiches Gehäuse ⚠️ Spezifikationen ungeprüft✓ Auf Lager
Preis auf Anfrage
Datenblatt ansehen →S32K146 Grenzwerte & elektrische Eigenschaften
| Core | Arm Cortex-M4F, 32-bit |
| Maximale Taktfrequenz | 112 MHz |
| Flash Memory | 1 MB |
| SRAM | 128 KB |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Betriebstemperatur | -40C to +125C |
| CAN FD Support | Yes (FlexCAN with CAN FD) |
| FlexIO | Yes (serial protocol emulation) |
| Hardware Security | CSEc (secure key storage, crypto) |
| ECC | Flash and SRAM error-correcting code |
| MPU | Memory Protection Unit included |
| FPU | Single-precision floating point |
| Process Technology | 40 nm |
| Gehäuse | LQFP-64 / LQFP-100 / LQFP-144 |
| Qualification | AEC-Q100 qualified (automotive grade) |
| Low-Power Modes | Multiple low-power modes supported |
| Montageart | Surface Mount |
| Evaluation Board | S32K146EVB-Q144 |
S32K146 lqfp-64 / lqfp-100 / lqfp-144 Pinbelegungsleitfaden
Pinbelegung für S32K146 (lqfp-64 / lqfp-100 / lqfp-144-Gehäuse). Dieser digitale IC umfasst GPIO, Kommunikationsschnittstellen (UART, SPI, I2C) und Versorgungspins. Alternative Pin-Funktionen und Konfigurationsoptionen entnehmen Sie dem Herstellerdatenblatt. Unverzichtbar für Embedded-System-Design und PCB-Layout.
Keine detaillierten Pinbelegungsdaten verfügbar für S32K146.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
S32K146 ist geeignet für 6 Anwendungs: Automotive Body Control Module (BCM), Vehicle Gateway Module, Industrial Automation Controller, Automotive HVAC / Blower Control, Secure Key Storage and Immobilizer Systems, Sensor Hub and FlexIO Protocol Aggregation.
Automotive Body Control Module (BCM)
The S32K146 fits body control modules because its 112 MHz Cortex-M4F core handles multiple concurrent PWM, LIN, and CAN FD tasks while the 1 MB flash accommodates feature-rich firmware. Multiple FlexCAN modules with CAN FD bridge legacy and modern in-vehicle networks, and CSEc provides secure key storage for immobilizer and access functions. ECC on flash and SRAM plus AEC-Q100 qualification at -40C to +125C ensure reliability in harsh cabin and engine-bay environments. The 5V-tolerant I/O directly drives relays and LED loads with minimal external circuitry.
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Vehicle Gateway Module
Gateway modules aggregate multiple CAN, CAN FD, and LIN buses, and the S32K146 addresses this with multiple FlexCAN instances supporting CAN FD plus FlexIO for LIN/UART emulation. The 112 MHz core with DSP instructions performs message routing, filtering, and protocol translation with deterministic latency, while 1 MB flash and 128 KB SRAM hold routing tables and diagnostic stacks. CSEc security enables authenticated firmware and secure on-board diagnostics (SecOC-style), essential for connected vehicles. The MPU supports partitioned AUTOSAR software architectures.
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Industrial Automation Controller
In industrial control, the S32K146 provides a 5V-supply MCU with -40C to +125C capability, CAN FD for factory fieldbus networks, and rich timers via FlexIO and FTM for motor sequencing and sensor polling. The 112 MHz Cortex-M4F with single-precision FPU executes PID control loops and basic condition monitoring, while ECC on both memories targets the high uptime demands of factory automation. Its AEC-Q100 pedigree transfers automotive reliability practices into industrial environments. Low-power modes suit battery-backed and energy-harvesting nodes.
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Automotive HVAC / Blower Control
HVAC blowers require sensorless BLDC control, and the S32K146 delivers it with the 112 MHz core executing field-oriented control using the single-precision FPU, plus FTM PWM and ADC-triggered control loops. CAN FD links the blower ECU to the climate controller, and diagnostics stored in the 1 MB flash support UDS-based service tools. Operation to 125C suits under-dash and engine-bay-adjacent mounting. FlexIO can emulate additional serial channels for damper actuators without adding external protocol ICs, reducing system cost.
Empfohlen
Secure Key Storage and Immobilizer Systems
The CSEc security engine distinguishes the S32K146 for security-critical nodes: it performs secure key storage, AES/DES encryption, CMAC authentication, and secure boot without exposing keys to software. Combined with the MPU and ECC-protected memories, it supports immobilizer, tire-pressure gateway, and access-control functions where key confidentiality is regulated. The 112 MHz core runs host-side protocol handling while crypto executes in hardware, keeping latency low. Secure flash programming workflows are documented in the S32K1xx reference manual and application notes.
Empfohlen
Sensor Hub and FlexIO Protocol Aggregation
FlexIO lets the S32K146 emulate UART, SPI, I2C, and custom serial protocols in hardware, making it an efficient sensor hub aggregating radar, ultrasonic, and pressure sensor streams over multiple emulated ports simultaneously. The 128 KB SRAM buffers data bursts, and the 112 MHz core with DSP instructions performs filtering and feature extraction before forwarding over CAN FD. Designers use the S32K146EVB-Q144 with its Arduino UNO-compatible header for rapid sensor daughter-board prototyping. This reduces external protocol ICs and board area significantly.
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Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für S32K146 – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | S32K148 | S32K144 | S32K142 |
|---|---|---|---|---|
| Package | LQFP-64 / LQFP-100 / LQFP-144 | LQFP-100 / LQFP-144 / MAPBGA-100 (p2p in shared packages) | LQFP-64 / LQFP-100 / LQFP-144 (same) | LQFP-64 / LQFP-100 (same) |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | Arm Cortex-M4F | Arm Cortex-M4F (dual core on some variants) | Arm Cortex-M4F | Arm Cortex-M4F |
| Max Frequency | 112 MHz | 112 MHz | 112 MHz | 80 MHz |
| Flash | 1 MB | 2 MB | 512 KB | 256 KB |
| SRAM | 128 KB | 256 KB | 64 KB | 32 KB |
| Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Safety / Qualification | AEC-Q100, ECC flash+SRAM, MPU | AEC-Q100, ECC, MPU | AEC-Q100, ECC, MPU | AEC-Q100, ECC, MPU |
| CAN FD | Yes (FlexCAN) | Yes (FlexCAN) | Yes (FlexCAN) | Yes (FlexCAN) |
Wichtigste Unterscheidungsmerkmale
- Largest flash in p2p-compatible LQFP footprint below S32K148 (vs. S32K144)
- Lower power than S32K148 (vs. S32K148)
- CSEc hardware security included (vs. S32K142)
Designhinweise
The S32K146 operates from a 2.7V to 5.5V single supply. Per NXP community guidance, it draws approximately 10% more current than the S32K144 in both run and low-power modes - factor this into regulator sizing and self-heating estimates, especially in enclosed 125C automotive modules. Use a 5V automotive LDO with adequate thermal margin and place 100nF ceramic decoupling caps at every VDD pin plus bulk capacitance near VDDA/VREFH for ADC accuracy.
Follow NXP S32K1xx hardware design guidelines: provide a solid ground plane, keep VDDA/VREFH filtered with an RC network (e.g., ferrite bead + 1uF + 100nF), and route CAN FD FlexCAN TX/RX as matched pairs to the transceiver with a split termination at the bus. Reset (RESET_b) needs a 10k pull-up and should be reachable by the debug probe. Keep the crystal load capacitors close to XTAL/EXTAL per the S32K1xx reference manual.
When migrating pin-to-pin within the family (e.g., S32K144 to S32K146), check chip-specific registers and clock/temperature options as NXP advises - software using device-specific registers may need updates. Always order using the full orderable MPN (e.g., FS32K146HAT0MLHT for LQFP-64, FS32K146HAT0MLQT for LQFP-144); the bare S32K146 name does not specify package or grade.
Compliance-Informationen
AEC-Q100 qualified per NXP product page for FS32K146HAT0MLHT. RoHS/lead-free status per standard NXP automotive-grade offering; exact RoHS/REACH declarations should be confirmed via NXP product page documents.
