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NXP Semiconductors MK21FN1M0AVMC12
- Part No.:
- MK21FN1M0AVMC12
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 121-LFBGA
- Datasheet:
-
MK21FN1M0AVMC12.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 121MAPBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,740
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Product details
Overview
MK21FN1M0AVMC12 from NXP Semiconductors (formerly Freescale) is a 120 MHz ARM Cortex-M4 microcontroller with FPU, 1 MB flash, 128 KB SRAM, DryIce tamper detection, USB LS/FS OTG, CAN, dual 16-bit ADCs, and ultra-low-power operation down to 268 nA in VLLS0 mode - designed for secure, low-power embedded applications such as electronic point-of-sale terminals.
For engineers reviewing the MK21FN1M0AVMC12 datasheet, MK21FN1M0AVMC12 pinout, MK21FN1M0AVMC12 application, or MK21FN1M0AVMC12 equivalent, key selection criteria include its 121-pin MAPBGA package, -40°C to +105°C industrial temperature range, integrated hardware encryption, 128-bit unique ID, and support for USB Device Charger Detect and Secure Digital Host Controller (SDHC).
Technical Context
The MK21FN1M0AVMC12 implements an ARM Cortex-M4 core with DSP extensions and single-precision floating-point unit, operating at up to 120 MHz in PEE clock mode. It integrates DryIce tamper detection with active/passive pin monitoring, temperature, clock, and supply voltage sensing - enabling robust security for payment systems.
Its memory subsystem includes 1 MB on-chip flash with error correction, 128 KB SRAM, FlexBus external interface, and FlexMemory for EEPROM emulation. Peripheral integration spans six UARTs, three I²C, three SPI, two 12-bit DACs, three analog comparators, real-time clock, and carrier modulator transmitter - all supported by a configurable low-leakage wakeup unit and multi-level power management.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M4 with FPU, 120 MHz max - delivers 1.25 DMIPS/MHz for deterministic real-time signal processing |
| Flash / RAM | 1 MB flash + 128 KB SRAM - sufficient for complex firmware with secure boot and OTA update storage |
| Power Consumption | 268 nA in VLLS0 mode with full state retention - enables battery-backed operation for >10 years in tamper-monitored systems |
| USB Interface | USB 2.0 LS/FS OTG with integrated 3.3 V/120 mA LDO - eliminates need for external USB regulator in portable POS designs |
| Tamper Protection | DryIce module with active/passive pin, temperature, clock, and VDD monitoring - triggers secure erase on physical intrusion attempts |
| Analog Peripherals | Two 16-bit SAR ADCs (1 MSPS), two 12-bit DACs, three comparators - supports high-accuracy sensor interfacing and analog control loops |
| Operating Range | 1.71–3.6 V supply, –40°C to +105°C ambient - qualified for industrial and retail environments with wide thermal variation |
Pinout & Package
Package: 121-pin MAPBGA, 8 mm × 8 mm × 1.4 mm, 0.65 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD / VSS | Digital power / ground | Multiple dedicated pairs ensure stable core voltage delivery and noise isolation in high-speed operation |
| VDDA / VSSA | Analog power / ground | Separate analog domain supply pins enable clean reference for ADC/DAC with <7 pF input capacitance |
| USB0_DP / USB0_DM | USB differential data pair | Integrated ESD protection and impedance-controlled routing support full-speed USB compliance without external termination |
| CAN0_TX / CAN0_RX | CAN transceiver interface | Direct connection to external CAN PHY; supports ISO 11898-2 compliant bus communication up to 1 Mbps |
| PTA0–PTA31, PTB0–PTB16, etc. | Multi-function GPIO | 81 total I/O pins with configurable slew rate, drive strength, pull-up/down, and digital glitch filtering per pin |
| EXTAL / XTAL | 32 kHz crystal oscillator inputs | Supports precision RTC timing and low-power clock source; internal load capacitors eliminate external components |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | Single-precision IEEE 754 compliance enables efficient math-intensive tasks like motor control algorithms or audio processing |
| DryIce tamper detection | Hardware-enforced security with active pin monitoring, voltage/temperature/clock anomaly detection, and automatic secure memory wipe |
| USB OTG with embedded LDO | On-chip 3.3 V/120 mA regulator powers USB PHY - reduces BOM count and simplifies layout for compact POS devices |
| Hardware encryption engine | AES-128/256, DES, SHA-1/256 acceleration offloads crypto operations from CPU - critical for PCI-compliant payment terminals |
| FlexBus interface | External memory controller supporting NOR/NAND flash, SRAM, and peripherals - extends code/data space beyond on-chip limits |
Applications
| Electronic Point-of-Sale (POS) | Secure Industrial HMI |
|---|---|
Use Scenario: Compact, battery-backed payment terminal requiring PCI PTS v6.0 compliance and resistance to physical tampering. IC Role / Device Role / Timing Role: Main application processor executing secure bootloader, EMV transaction stack, and USB/SDHC-based card reader interface. Use Value: DryIce tamper detection triggers immediate memory wipe upon enclosure breach; 268 nA VLLS0 mode enables multi-year battery life during standby. | Use Scenario: Factory-floor human-machine interface with encrypted firmware updates and real-time diagnostics. IC Role / Device Role / Timing Role: Central controller managing touch interface, CAN-connected PLCs, and local display via FlexBus-driven framebuffer. Use Value: Hardware AES engine accelerates signed firmware verification; dual 16-bit ADCs monitor analog sensor inputs with 1 MSPS sampling for predictive maintenance. |
| Medical Data Logger | Smart Energy Meter |
Use Scenario: Portable, CE-certified device logging physiological signals with long-term battery operation and data integrity assurance. IC Role / Device Role / Timing Role: Signal acquisition hub with simultaneous ADC sampling, real-time timestamping, and encrypted SDHC storage. Use Value: 128-bit unique ID enables device-level traceability; CRC module ensures reliable flash writes under variable power conditions. | Use Scenario: DIN-rail mounted electricity meter requiring anti-tamper certification (IEC 62055-31), secure metrology data handling, and PLC communication. IC Role / Device Role / Timing Role: Metrology co-processor interfacing with isolated ADCs and driving CAN/UART for utility network reporting. Use Value: Tamper detect pins monitor case opening and magnetic field intrusion; hardware RNG seeds cryptographic keys for DLMS/COSEM protocol compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MK21FX512AVMC12 | 512 KB flash, identical 121-pin MAPBGA package, same peripheral set and security features | Suitable where firmware footprint is constrained and full 1 MB is unnecessary | Select when cost sensitivity outweighs future firmware scalability needs |
| MK64FN1M0VDC12 | Same 1 MB flash, 120 MHz Cortex-M4, but 144-pin LQFP package; adds Ethernet MAC and higher RAM (256 KB) | Better suited for networked industrial gateways requiring wired connectivity | Choose only if Ethernet interface is required and PCB layout allows larger footprint |
Compared with MK21FN1M0AVMC12, MK21FX512AVMC12 offers identical security and low-power performance at lower flash capacity, while MK64FN1M0VDC12 trades compact BGA packaging for Ethernet capability and increased memory - neither is pin-compatible, requiring board redesign.
Availability
MK21FN1M0AVMC12 is available at Aetrix Electronics and suitable for electronic point-of-sale terminals, secure industrial HMIs, and medical data loggers requiring stable component supply across extended product lifecycles.
Supply support for MK21FN1M0AVMC12 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 markets.
The Kinetis K21F family - including MK21FN1M0AVMC12 - was engineered for cost-sensitive, security-critical embedded applications demanding low-power operation, USB connectivity, and hardware-based tamper resistance.
FAQ
What is the maximum operating frequency of the MK21FN1M0AVMC12 core?
The MK21FN1M0AVMC12 features an ARM Cortex-M4 core with FPU rated for up to 120 MHz operation in PEE clock mode. This frequency is achievable with proper decoupling, thermal management, and supply voltage within the 1.71–3.6 V range. The MK21FN1M0AVMC12 maintains full peripheral functionality at this speed, including USB OTG and CAN modules.
Does the MK21FN1M0AVMC12 support USB Device Charger Detection?
Yes, the MK21FN1M0AVMC12 integrates a dedicated USB Device Charger Detect (DCD) module compliant with USB Battery Charging Specification v1.2. This enables the MK21FN1M0AVMC12 to identify proprietary and standard wall adapters, allowing intelligent power management in portable POS and handheld devices without external ICs.
What security features does the MK21FN1M0AVMC12 provide for tamper-resistant applications?
The MK21FN1M0AVMC12 includes the DryIce tamper detection module with active and passive pin monitoring, temperature, clock, and supply voltage sensors. It also provides hardware AES-128/256, DES, SHA-1/256 acceleration, a true random number generator, and 128-bit unique chip ID - all essential for PCI PTS and IEC 62443-compliant implementations.
What is the lowest power consumption mode available on the MK21FN1M0AVMC12?
The MK21FN1M0AVMC12 achieves 268 nA in Very-Low-Leakage Stop Mode 0 (VLLS0) with POR detect circuit disabled and full register/state retention. Wakeup occurs in 5 μs from this mode, making it ideal for battery-powered applications requiring infrequent wakeups with guaranteed data integrity - a key capability of the MK21FN1M0AVMC12 in secure logging use cases.
Which development tools are officially supported for the MK21FN1M0AVMC12?
NXP officially supports the MK21FN1M0AVMC12 with MCUXpresso IDE, SDK, and configuration tools. Hardware evaluation is enabled via the FRDM-K21F Freedom Development Platform, which provides debug interface, onboard sensors, and expansion headers compatible with the MK21FN1M0AVMC12's peripheral set and pin mapping.
MK21FN1M0AVMC12 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 121-LFBGA
- Series:
- Kinetis K20
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 120MHz
- Connectivity:
- CANbus, I2C, IrDA, SPI, UART/USART, USB, USB OTG
- Peripherals:
- DMA, I2S, LVD, POR, PWM, WDT
- Number of I/O:
- 81
- Program Memory Size:
- 1MB (1M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 128K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 40x16b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MK21FN1M0AVMC12 FAQ
1.How can I place an order for MK21FN1M0AVMC12 through Aetrix?
Please submit a Request for Quotation (RFQ) for MK21FN1M0AVMC12 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 MK21FN1M0AVMC12 reliable?
The price and inventory of MK21FN1M0AVMC12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MK21FN1M0AVMC12 is usually 5 days.
3.What payment methods are accepted for MK21FN1M0AVMC12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MK21FN1M0AVMC12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MK21FN1M0AVMC12?
MK21FN1M0AVMC12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MK21FN1M0AVMC12 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 MK21FN1M0AVMC12?
For technical support, including MK21FN1M0AVMC12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MK21FN1M0AVMC12 requirements.
6.How does Aetrix verify that MK21FN1M0AVMC12 is sourced from the original manufacturer or authorized distributors?
All MK21FN1M0AVMC12 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 MK21FN1M0AVMC12 meets industry standards.
7.What is the process for return or replacement of MK21FN1M0AVMC12?
All MK21FN1M0AVMC12 units undergo pre-shipment inspection (PSI). If there is an issue with MK21FN1M0AVMC12, 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 MK21FN1M0AVMC12 part is unused and in its original packaging.
Return procedure for MK21FN1M0AVMC12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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