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NXP Semiconductors MK28FN2M0ACAU15R
- Part No.:
- MK28FN2M0ACAU15R
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 210-UFBGA, WLCSP
- Datasheet:
-
MK28FN2M0ACAU15R.pdf
- Description:
- IC MCU 32BIT 2MB FLASH 210WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:2,702
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Product details
Overview
MK28FN2M0ACAU15R from NXP Semiconductors is a high-performance ARM® Cortex®-M4 microcontroller with 2 MB flash, 1 MB SRAM, dual USB controllers (High-Speed + crystal-less Full-Speed), SDRAM controller, QuadSPI interface, and Power Management Controller with Core Voltage Bypass - deployed in low-end graphic display systems and cost-optimized smart home hubs requiring rich HMI and external memory expansion.
For engineers reviewing the MK28FN2M0ACAU15R datasheet, MK28FN2M0ACAU15R pinout, MK28FN2M0ACAU15R application, or MK28FN2M0ACAU15R equivalent, key selection criteria include its 210-pin WLCSP package, -40°C to 85°C ambient operating range, 150 MHz core frequency, QuadSPI XIP capability, and integrated cryptographic acceleration (AES/SHA-256/MD5).
Technical Context
The MK28FN2M0ACAU15R implements an ARM Cortex-M4 core with DSP extensions and single-precision FPU, operating up to 150 MHz in HSRUN mode at 1.47 V VDD_CORE. It integrates a 32-bit SDRAM controller and dual QuadSPI interfaces supporting SDR/DDR serial flash and octal configurations for eXecution-In-Place.
Its system architecture includes a 32-channel eDMA, memory protection unit (MPU), hardware random-number generator (TRNG), and MMCAU crypto accelerator. The Power Management Controller enables external PMIC integration via Core Voltage Bypass, while low-power timers and LPUARTs support battery-operated operation down to VLLS2/VLLS3 modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M4 with DSP instructions and single-precision FPU, max 150 MHz |
| Memory | 2 MB dual-bank flash + 1 MB SRAM + 8 KB I/D cache + 32 KB boot ROM |
| External Interfaces | 32-bit SDRAM controller, dual QuadSPI (XIP-capable), FlexBus, SDHC |
| USB | Two controllers: USB HS/FS/LS with integrated PHY + crystal-less FS/LS with transceiver |
| Analog Peripherals | One 16-bit SAR ADC, one 12-bit DAC, two 6-bit DACs, two analog comparators, 1.2 V reference |
| Security | Hardware TRNG, MMCAU crypto accelerator (AES/SHA-1/SHA-256/MD5/DES/3DES), CRC engine |
| Power Modes | Supports RUN, HSRUN, VLPR, STOP, VLPS, LLS2/LLS3, VLLS2/VLLS3 with sub-μA retention currents |
Pinout & Package
Package: 210-ball WLCSP (6.9 mm × 6.9 mm × 0.6 mm, 0.4 mm pitch), rated for -40°C to +85°C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_CORE | Core logic supply | 1.17–1.47 V regulated input; bypass required for external PMIC integration |
| VDD / VDDIO_E | I/O domain supplies | VDD (1.71–3.6 V) for Ports A–D; independent VDDIO_E (1.71–3.6 V) for Port E and QuadSPI |
| VBAT | RTC backup supply | 1.71–3.6 V independent domain enabling RTC operation during main power loss |
| EXTAL32 / XTAL32 | 32 kHz crystal oscillator inputs | Supports low-power RTC timing with factory-trimmed internal LPO (900–1100 μs period) |
| USB0_DP / USB0_DM | USB High-Speed differential pair | Integrated HS PHY; requires 90 Ω differential impedance routing and ESD protection |
| QSPI0A_DQS / QSPI0A_DATA0–3 | QuadSPI data/strobe lines | Enable XIP from external serial NOR flash; support DDR/octal modes for bandwidth scaling |
Key Features
| Feature | Design Value |
|---|---|
| Crystal-less USB Full-Speed | Eliminates external 48 MHz crystal and associated components, reducing BOM cost and board space |
| Dual QuadSPI with XIP | Enables direct code execution from external serial NOR flash, eliminating SRAM copy overhead and expanding effective code space |
| Core Voltage Bypass | Allows external PMIC to regulate VDD_CORE, optimizing system-level power efficiency and thermal management |
| Low-Power Timer PWM | Two 16-bit modules operate in VLPR/VLPS modes, enabling precise motor control or LED dimming without waking CPU |
| MMCAU Crypto Accelerator | Offloads AES-128/256, SHA-256, and MD5 operations from CPU, preserving real-time performance in secure firmware updates |
Applications
| Wearable Health Monitor | Smart Home Hub |
|---|---|
Use Scenario: Compact wearable device logging biometric sensor data and driving small OLED display. IC Role / Device Role / Timing Role: Main application processor executing RTOS, managing BLE/Wi-Fi coexistence, and rendering UI via parallel RGB interface. Use Value: 1 MB SRAM buffers multi-sensor streams; QuadSPI XIP reduces external memory footprint; low-power timers extend battery life between charges. |
Use Scenario: Multi-standard wireless hub aggregating Zigbee, Thread, and Bluetooth LE traffic for home automation gateways. IC Role / Device Role / Timing Role: Central protocol translator and secure edge node with TLS offload and OTA update integrity verification. Use Value: MMCAU accelerates AES-GCM and SHA-256; dual USB supports host-side debug and device-side peripheral attachment; SDRAM controller enables packet buffering. |
| Low-End Graphic Display System | Consumer Audio Accessory |
Use Scenario: Portable media player with 480×272 TFT display and touch interface. IC Role / Device Role / Timing Role: Display controller and audio subsystem manager using I2S, LPUART, and GPIO-driven capacitive touch. Use Value: Integrated 12-bit DAC drives line-out; 120 GPIOs support resistive/capacitive touch matrix; FlexIO emulates custom display timing protocols. |
Use Scenario: Wireless earbud charging case with battery monitoring, LED status, and USB-C PD communication. IC Role / Device Role / Timing Role: System power manager coordinating charge IC, fuel gauge, and USB enumeration via crystal-less FS USB. Use Value: VBAT domain maintains RTC and registers during case lid closure; PMC bypass enables efficient buck-boost regulation; LPUART handles battery telemetry at 3.3 V I/O. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-memory ARM Cortex-M4 microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MK28FN2M0VMI15 | Same core/peripherals but in 169-pin MAPBGA (9×9 mm, 0.65 mm pitch); rated for -40°C to 105°C | Better thermal margin for industrial enclosures; larger PCB footprint and higher rework complexity than WLCSP | Select MK28FN2M0VMI15 when extended temperature range or easier assembly outweighs size constraints. |
| RT1052DVJ6B | ARM Cortex-M7 @ 600 MHz, 2 MB flash, 512 KB RAM, no QuadSPI XIP, different security block (SECO) | Higher compute throughput for vision/audio preprocessing; lacks native crystal-less USB and SDRAM controller | Select RT1052DVJ6B only if M7 performance and eMMC/SDIO interface are prioritized over low-power USB and external flash XIP. |
Compared with MK28FN2M0ACAU15R, MK28FN2M0VMI15 offers wider temperature tolerance in a larger package, while RT1052DVJ6B trades low-power USB and QuadSPI XIP for raw M7 compute - making MK28FN2M0ACAU15R optimal for compact, battery-aware, flash-XIP-based HMI designs.
Availability
MK28FN2M0ACAU15R is available at Aetrix Electronics and suitable for wearable health monitors, smart home hubs, low-end graphic display systems, and consumer audio accessories requiring stable component supply across production lifecycles.
Supply support for MK28FN2M0ACAU15R 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 focused on secure connectivity solutions for automotive, industrial, and IoT applications.
The Kinetis K28F MCU sub-family targets resource-rich embedded applications demanding large on-chip memory, external memory expansion, cryptographic security, and ultra-low-power operation - with software compatibility across the Kinetis portfolio.
FAQ
What is the maximum operating frequency of the MK28FN2M0ACAU15R?
The MK28FN2M0ACAU15R operates at up to 150 MHz in High-Speed Run (HSRUN) mode with VDD_CORE regulated at 1.33–1.47 V. Its ARM Cortex-M4 core includes DSP extensions and a single-precision floating-point unit, validated across the full -40°C to +85°C ambient temperature range specified for the 210-pin WLCSP package.
Does the MK28FN2M0ACAU15R support execution-in-place (XIP) from external flash?
Yes, the MK28FN2M0ACAU15R supports XIP via its dual QuadSPI interfaces, which natively handle SDR and DDR serial NOR flash, including octal configurations. This capability eliminates SRAM code copying overhead and extends effective program memory beyond its 2 MB on-chip flash - confirmed in the K28F Reference Manual and Data Sheet Rev. 4.
What are the voltage domains and supply requirements for the MK28FN2M0ACAU15R?
The MK28FN2M0ACAU15R features four independent voltage domains: VDD_CORE (1.17–1.47 V), VDD/VDDA (1.71–3.6 V), VDDIO_E (1.71–3.6 V for QuadSPI/Port E), and VBAT (1.71–3.6 V for RTC). VDD_CORE must not exceed VDD during power-up or power-down per the recommended POR sequencing in the datasheet.
How does the Power Management Controller with Core Voltage Bypass function in the MK28FN2M0ACAU15R?
The MK28FN2M0ACAU15R's Power Management Controller allows external PMIC regulation of VDD_CORE by bypassing the internal regulator. This enables system-level optimization of power conversion efficiency and thermal distribution - particularly valuable in space-constrained, battery-powered designs where discrete PMICs offer tighter voltage tolerances and dynamic headroom control.
Which cryptographic algorithms are accelerated by the MMCAU in the MK28FN2M0ACAU15R?
The Memory Mapped Crypto Acceleration Unit (MMCAU) in the MK28FN2M0ACAU15R accelerates DES, 3-DES, AES (all key lengths), SHA-1, SHA-256, and MD5. These functions are accessible via memory-mapped registers and reduce CPU load during secure boot, firmware signing, and TLS handshake operations - verified in the K28P210M150SF5 Reference Manual.
MK28FN2M0ACAU15R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 210-UFBGA, WLCSP
- Series:
- Kinetis K27F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 150MHz
- Connectivity:
- EBI/EMI, I2C, QSPI, SDHC, SPI, UART/USART, USB
- Peripherals:
- DMA, I2S, PWM, WDT
- Number of I/O:
- 120
- Program Memory Size:
- 2MB (2M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1M x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 16b SAR; D/A 2x6b, 1x12b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MK28FN2M0ACAU15R FAQ
1.How can I place an order for MK28FN2M0ACAU15R through Aetrix?
Please submit a Request for Quotation (RFQ) for MK28FN2M0ACAU15R 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 MK28FN2M0ACAU15R reliable?
The price and inventory of MK28FN2M0ACAU15R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MK28FN2M0ACAU15R is usually 5 days.
3.What payment methods are accepted for MK28FN2M0ACAU15R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MK28FN2M0ACAU15R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MK28FN2M0ACAU15R?
MK28FN2M0ACAU15R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MK28FN2M0ACAU15R 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 MK28FN2M0ACAU15R?
For technical support, including MK28FN2M0ACAU15R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MK28FN2M0ACAU15R requirements.
6.How does Aetrix verify that MK28FN2M0ACAU15R is sourced from the original manufacturer or authorized distributors?
All MK28FN2M0ACAU15R 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 MK28FN2M0ACAU15R meets industry standards.
7.What is the process for return or replacement of MK28FN2M0ACAU15R?
All MK28FN2M0ACAU15R units undergo pre-shipment inspection (PSI). If there is an issue with MK28FN2M0ACAU15R, 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 MK28FN2M0ACAU15R part is unused and in its original packaging.
Return procedure for MK28FN2M0ACAU15R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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