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Our secure microcontrollers provide ongoing protection for your digital assets and intellectual property (IP) against continuously emerging threats. Our secure MCU ICs employ FIPS-certified, hardware cryptographic engines which support industry-standard algorithms. Advanced cryptography, combined with physical layer security, means that when you select a secure microcontroller from our diverse offering, you are guaranteed the highest level of protection against side-channel attacks, physical tampering, and reverse engineering.

Other notable features of our secure microcontrollers include:

  • Integrated secure memory (NV SRAM) that is instantly erased when an intrusion is detected
  • Patented real-time code and data encryption that fully protects external memory
  • Hardware that conforms to EMV, PCI, and FIPS standards
  • Secure boot and ChipDNA™ PUF technology that protect IoT designs against hacker attacks

Featured Videos


Security Excellence Lab: DPA Attack Demo
2:09 April 18, 2019


How ChipDNA PUF Technology Protects Your Secrets
0:30 January 24, 2019



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Latest Blogs

So Many Smart Devices, So Many Security Vulnerabilities

November 28, 2018

“As you start to create your next widget, think of security first…Don’t make it an afterthought,” a McAfee exec tells an IoT Device Security Summit audience.

A Quick Look at Using NFC to Protect Your System

February 13, 2018

This blog post by industry expert Jim Harrison takes a look at how NFC can be used for access protection.

Secure Microcontrollers Safe from Spectre and Meltdown Flaws

January 16, 2018

Learn why Maxim secure microcontrollers are safe from the Spectre and Meltdown flaws afflicting most computer chips and embedded devices.

Keeping Hackers Away from Your POS Terminals

May 11, 2017

Learn how secure microcontrollers can be an easy, low-cost way to protect POS terminals from hacking.

Don’t Become the Next Hacking Headline

April 04, 2017

Learn why an early investment in design security is essential to protect your IoT designs.

See more

Featured Products

Part Number Core MCU Speed (MHz) Flash size RAM Size Smart Card Interface Contactless Card Interface Magnetic Card Interface ChipDNA PUF Secure Boot Crypto Support TLS Support
MAX32520 Cortex-M4F 120 2MB 136KB No No No Yes Yes Yes No
MAX32570 Cortex-M4F 150 1MB 760KB Yes Yes Yes No Yes Yes No
MAX32561 Cortex-M3 108 1MB 384KB Yes Yes Yes No Yes Yes No
MAX32560 Cortex-M3 108 1MB 384KB Yes Yes Yes No Yes Yes No
MAX32552 Cortex-M3 108 1MB 384KB Yes No Yes No Yes Yes No
MAX32550 Cortex-M3 108 1MB 256KB Yes No Yes No Yes Yes No
MAX32555 Cortex-M3 60 512KB 96KB Yes No Yes No Yes Yes No

Reference Designs

Product Image
MAX32520-KIT
Cortex®-M4 secure microcontroller provides secure boot and protection against physical tampering...