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NXP Semiconductors SVF321R3K2CKU2
- Part No.:
- SVF321R3K2CKU2
- Manufacturer:
- NXP Semiconductors
- Category:
- Microprocessors
- Package:
- 176-LQFP Exposed Pad
- Datasheet:
-
SVF321R3K2CKU2.pdf
- Description:
- IC MPU VYBRID 133MHZ 176HLQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,289
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Product details
Overview
SVF321R3K2CKU2 from NXP Semiconductors is a dual-core heterogeneous application processor integrating an ARM Cortex-A5 (266 MHz) and ARM Cortex-M4 (133 MHz), with 512 KB on-chip SRAM (ECC), dual 12-bit SAR ADCs (1 MS/s), and dual 10/100 Ethernet interfaces. It operates from 3.0–3.6 V at –40 °C to +85 °C ambient and targets industrial HMI, gateway control, and real-time edge processing.
For engineers reviewing the SVF321R3K2CKU2 datasheet, SVF321R3K2CKU2 pinout, SVF321R3K2CKU2 application, or SVF321R3K2CKU2 equivalent, key selection considerations include dual-core asymmetric execution capability, integrated L2 cache absence (per part number decoding), OpenVG GPU exclusion, and LQFP-EP 176 package compatibility with legacy PCB layouts requiring thermal pad exposure.
Technical Context
The SVF321R3K2CKU2 implements a tightly coupled A5+M4 architecture with independent clock domains, enabling concurrent high-level OS execution (Linux on A5) and deterministic real-time control (FreeRTOS on M4). Its memory subsystem includes 8/16-bit DDR3/LPDDR2 support up to 400 MHz, dual QuadSPI with XIP, and FlexBus for legacy parallel peripherals.
Security is enforced via ARM TrustZone, SNVS, RTIC, and hardware-accelerated hashing/RNG, while system integrity relies on dual DMA controllers (32 channels), hardware CRC, illegal opcode/address detection, and external watchdog monitor (EWM). All analog functions-including dual 12-bit DACs and VideoADC-are confirmed active per mask 3N02G and VADC = YES.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| A5 Core Speed | 266 MHz - Fixed maximum frequency; no dynamic scaling; determines Linux boot time and application throughput ceiling. |
| M4 Core Speed | 133 MHz - Enables hard real-time loop execution ≤7.5 µs per cycle; supports deterministic motor control or sensor fusion. |
| On-chip SRAM | 512 KB with ECC - Provides fault-tolerant code/data storage for safety-critical firmware segments. |
| ADC Resolution & Rate | Dual 12-bit, 1 MS/s - Supports simultaneous sampling of 2 analog channels at 1 µs intervals for closed-loop feedback. |
| Package | LQFP-EP 176 (24×24×1.6 mm) - Exposed thermal pad enables 2.8 W max power dissipation in convection-cooled industrial enclosures. |
| Operating Temp | –40 °C to +85 °C - Qualified for automotive under-hood and industrial control cabinet deployment without derating. |
| Voltage Range | 3.0 V to 3.6 V - Compatible with standard 3.3 V supply rails; eliminates need for dedicated low-dropout regulators. |
Pinout & Package
LQFP-EP 176-pin package with exposed thermal pad (24 mm × 24 mm × 1.6 mm height); RoHS-compliant, lead-free finish; moisture sensitivity level (MSL) 3 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA_3P3 | Analog 3.3 V supply | Must be decoupled with 10 µF + 100 nF near pin; powers ADC/DAC/VideoADC analog sections. |
| VDDIO_3P3 | I/O bank 3.3 V supply | Supplies all GPIO, UART, SPI, I²C, and SDHC interface logic; requires separate filtering from core supplies. |
| VDD_CORE | 1.2 V digital core supply | Generated externally via HPREG + NPN ballast; voltage must remain within 1.20–1.26 V under full load. |
| BOOT_MODE[1:0] | Boot configuration strap | Pulled high/low at reset to select boot source: QuadSPI, NAND, SDHC, or USB MSD mode. |
| ENET0_RXD0–3 | Ethernet MAC receive data | LVCMOS 3.3 V inputs; require 50 Ω series termination and controlled impedance (50 Ω ±10%) routing. |
| USB_OTG1_DP/DM | USB 2.0 differential pair | Requires 90 Ω differential impedance; internal PHY eliminates need for external transceiver. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-core asymmetric processing | Enables separation of Linux-based UI/services (A5) from time-critical control tasks (M4), reducing inter-core contention and jitter. |
| ARM TrustZone security | Provides hardware-enforced isolation between secure world (boot ROM, SNVS, RTIC) and normal world (application OS), meeting IEC 62443-3-3 SL2 requirements. |
| Dual 10/100 Ethernet with IEEE 1588 | Supports precise time synchronization (±50 ns typical) across distributed industrial nodes without external PTP hardware. |
| Integrated hardware CRC module | Accelerates checksum computation for firmware OTA updates and flash memory integrity verification at line rate (up to 200 MB/s). |
| GPIO with digital glitch filter | Configurable 1–16 ns filtering suppresses EMI-induced false interrupts in noisy factory environments without software overhead. |
Applications
| Industrial HMI Gateway | Smart Building Controller |
|---|---|
Use Scenario: Centralized building automation panel aggregating HVAC, lighting, and access control data via Modbus TCP and BACnet/IP. IC Role / Device Role / Timing Role: SVF321R3K2CKU2 acts as protocol translation bridge and real-time scheduler-A5 runs embedded Linux with web server, M4 handles deterministic CAN bus polling and PWM fan control. Use Value: Dual Ethernet ports enable redundant network uplinks; integrated 12-bit ADCs directly digitize temperature/humidity sensor outputs without external signal conditioning. | Use Scenario: Edge node in commercial HVAC system performing local PID loop control while forwarding diagnostics to cloud via MQTT over TLS. IC Role / Device Role / Timing Role: SVF321R3K2CKU2 serves as secure edge controller-TrustZone isolates TLS stack and private keys; M4 executes 10 ms control loops with sub-microsecond jitter. Use Value: Hardware RNG and SHA-256 acceleration enable fast certificate-based authentication; 512 KB ECC SRAM ensures firmware integrity during remote updates. |
| Programmable Logic Controller (PLC) | Medical Diagnostic Interface |
Use Scenario: DIN-rail mounted PLC executing ladder logic and motion control for packaging machinery with safety monitoring. IC Role / Device Role / Timing Role: SVF321R3K2CKU2 functions as main logic engine-A5 hosts CODESYS runtime, M4 manages encoder quadrature decoding and stepper motor step generation. Use Value: Dual FTM timers provide hardware-captured position feedback; GPIO glitch filters reject ESD noise from relay coils and solenoids. | Use Scenario: Portable ultrasound front-end interface converting analog beamformer outputs to digital video stream for display and storage. IC Role / Device Role / Timing Role: SVF321R3K2CKU2 performs real-time video preprocessing-DCU drives WVGA display, VIU captures camera input, SAI routes audio alerts. Use Value: Dual 12-bit DACs generate calibrated test signals for transducer calibration; VideoADC digitizes analog RF echo data at 40 MSPS (interleaved mode). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-core application processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SVF322R3K2CKU2 | Includes OpenVG GPU; identical A5/M4 clocks, SRAM, and package. | Required when rendering vector graphics or OpenGL ES 2.0 UI elements on TFT displays. | Select SVF322R3K2CKU2 only if GPU acceleration is needed-adds ~$1.20 cost and minor thermal overhead. |
| SVF331R3K2CKU2 | M4 Primary configuration: M4 boots first, A5 is secondary; same peripherals and memory map. | Suitable for systems where real-time determinism dominates over application-layer complexity (e.g., motor drives). | Choose SVF331R3K2CKU2 when M4 must handle boot, safety monitoring, and fail-safe shutdown independently of A5 state. |
Compared with SVF321R3K2CKU2, SVF322R3K2CKU2 adds GPU capability without altering timing or power behavior, while SVF331R3K2CKU2 reorders boot hierarchy to prioritize M4 execution-both retain pin compatibility and thermal profile but serve distinct system architecture goals.
Availability
SVF321R3K2CKU2 is available at Aetrix Electronics and suitable for industrial HMI, smart building controllers, and programmable logic controllers requiring stable component supply across multi-year production cycles.
Supply support for SVF321R3K2CKU2 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 company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The Vybrid VF3xxR series was designed for cost-sensitive, thermally constrained edge devices needing both application processing and real-time control-targeting industrial gateways, HMIs, and medical interfaces where Linux + RTOS coexistence is mandatory.
FAQ
Does SVF321R3K2CKU2 include L2 cache?
No, SVF321R3K2CKU2 does not include L2 cache. Per the part number decoding (R3 = Standard memory option), it features 512 KB on-chip SRAM with ECC and 96 KB boot ROM only. L2 cache (512 KB) is reserved for R2 memory option variants like SVF322R2K2CKU2.
What is the maximum DDR3 speed supported by SVF321R3K2CKU2?
SVF321R3K2CKU2 supports DDR3/LPDDR2 up to 400 MHz (200 MHz clock with double data rate), delivering up to 1.6 GB/s peak bandwidth. This is confirmed in Section 9.5.4 of the VF3xxR datasheet and applies to all VF3xxR parts regardless of memory option.
Is SVF321R3K2CKU2 qualified for automotive applications?
Yes, SVF321R3K2CKU2 carries automotive qualification (S = automotive qualified in part number), meeting AEC-Q100 Grade 3 (–40 °C to +85 °C) and including ESD ratings per HBM (±2000 V) and CDM (±500 V) standards.
Can SVF321R3K2CKU2 boot from QuadSPI flash?
Yes, SVF321R3K2CKU2 supports QuadSPI XIP boot mode. BOOT_MODE[1:0] pins configure the boot source, and the integrated QuadSPI controller allows direct code execution from flash without RAM loading-reducing boot time and memory footprint.
Does SVF321R3K2CKU2 integrate a hardware random number generator?
Yes, SVF321R3K2CKU2 includes a NIST SP800-90B/C compliant hardware RNG as part of its TrustZone security subsystem. It is accessible via the SNVS peripheral and used for key generation, nonce creation, and entropy seeding in cryptographic operations.
SVF321R3K2CKU2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 176-LQFP Exposed Pad
- Series:
- Vybrid, VF3xxR
- Packaging:
- Tray
- Product Status:
- Active
- Core Processor:
- ARM® Cortex®-A5 + Cortex®-M4
- Number of Cores/Bus Width:
- 2 Core, 32-Bit
- Speed:
- 266MHz, 133MHz
- Co-Processors/DSP:
- Multimedia; NEON™ MPE
- RAM Controllers:
- LPDDR2, DDR3, DRAM
- Graphics Acceleration:
- No
- Display & Interface Controllers:
- DCU, GPU, LCD, VideoADC, VIU
- Ethernet:
- 10/100Mbps (2)
- SATA:
- -
- USB:
- USB 2.0 OTG + PHY (1)
- Voltage - I/O:
- 3.3V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Security Features:
- ARM TZ, Hashing, RNG, RTC, RTIC, Secure JTAG, SNVS, TZ ASC, TZ WDOG
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 176-HLQFP (24x24)
- Additional Interfaces:
- CAN, I2C, IrDA, LIN, MediaLB, SCI, SDHC, SPI, UART/USART
SVF321R3K2CKU2 FAQ
1.How can I place an order for SVF321R3K2CKU2 through Aetrix?
Please submit a Request for Quotation (RFQ) for SVF321R3K2CKU2 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 SVF321R3K2CKU2 reliable?
The price and inventory of SVF321R3K2CKU2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SVF321R3K2CKU2 is usually 5 days.
3.What payment methods are accepted for SVF321R3K2CKU2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SVF321R3K2CKU2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SVF321R3K2CKU2?
SVF321R3K2CKU2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SVF321R3K2CKU2 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 SVF321R3K2CKU2?
For technical support, including SVF321R3K2CKU2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SVF321R3K2CKU2 requirements.
6.How does Aetrix verify that SVF321R3K2CKU2 is sourced from the original manufacturer or authorized distributors?
All SVF321R3K2CKU2 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 SVF321R3K2CKU2 meets industry standards.
7.What is the process for return or replacement of SVF321R3K2CKU2?
All SVF321R3K2CKU2 units undergo pre-shipment inspection (PSI). If there is an issue with SVF321R3K2CKU2, 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 SVF321R3K2CKU2 part is unused and in its original packaging.
Return procedure for SVF321R3K2CKU2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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