MK21FN1M0VMC12

Microcontrollers Overview

The MK21FN1M0VMC12 is a microcontroller from the Kinetis K21F sub-family, featuring an ARM Cortex-M4 core with FPU and DSP instructions. It operates at up to 120 MHz and includes 1 MB of Flash memory and 128 KB of SRAM. The device supports USB Full/Low-speed OTG 2.0 with an embedded 3.3 V regulator. It offers extensive tamper protection via DryIce technology and multiple low-power modes, including VLLS with static power down to 268 nA. Operating voltage ranges from 1.71 V to 3.6 V across an ambient temperature range of –40°C to 105°C.

Microcontrollers Feature Summary

• Integrates hardware encryption, random-number generator, and secure storage for robust data integrity.
• Features DryIce Tamper Detection with active/passive pin, temperature, clock, and supply voltage monitoring.
• Includes two 16-bit SAR ADCs and two 12-bit DACs for high-precision analog signal processing.
• Supports multiple communication interfaces including CAN, SPI, I2C, UART, SDHC, and I2S.

Microcontrollers Applications

• Electronic Point of Sales (EPOS) systems requiring cost-sensitive and secure solutions
• Industrial control applications needing robust tamper detection and reliability
• Battery-powered devices utilizing ultra-low-power stop modes
• USB-enabled peripheral devices leveraging the integrated OTG controller

Microcontrollers Procurement Notes

Verify the specific ordering suffix against current NXP documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the MAPBGA-121 configuration. Confirm that the selected variant meets all regulatory requirements for your target market. Cross-reference the datasheet revision to ensure accurate electrical characteristics are applied during design validation.

Microcontrollers Selection Notes

Select this component when high performance is required alongside strict security and anti-tampering measures. The inclusion of a floating-point unit makes it suitable for complex mathematical operations in motor control or audio processing. Consider the available FlexNVM if non-volatile data storage beyond standard Flash is needed. Evaluate the low-power consumption profiles against system duty cycles to optimize battery life.

Microcontrollers Part Context

This part belongs to the Kinetis K21 family, which targets cost-sensitive applications demanding low power and USB connectivity. It shares scalability with the broader Kinetis portfolio, allowing for migration between different memory sizes within the same ecosystem. The K21 series emphasizes security features like DryIce, distinguishing it from general-purpose MCUs lacking such physical protection mechanisms.

Microcontrollers Replacement Considerations

Consult official substitution guides for compatible parts within the K21 family, such as MK21FX512VMC12 for reduced memory configurations. Verify pin-to-pin compatibility before replacing components in existing designs. Ensure that any substitute maintains the required operating voltage and temperature specifications.