DeepCover Secure Arm Cortex-M3 Flash Microcontroller

Secure Cortex-M3 Flash Microcontroller with XiP QuadSPI interface

Please check latest availability status for a specific part variant.


DeepCover® embedded security solutions cloak sensitive data under multiple layers of advanced physical security to provide the most secure key storage possible.

The DeepCover Secure microcontroller (MAX32552) provides an interoperable, secure, and cost-effective solution to build new generations of trusted devices such as mobile chip and pin pads. The MAX32552 is based on an Arm® Cortex®-M3 processor with 1MB of embedded flash, 384KB of system RAM, 8KB of battery-backed AES self-encrypted NVSRAM. In addition to a high-performance QSPI® interface for secure code execution and data storage, it includes most of the essential functions of mobile POS terminal including a cryptographic engine, a true random number generator, battery-backed RTC, environmental and tamper detection circuitry, a magnetic stripe reader, a smart card controller with embedded transceiver to directly support 1.8V, 3.3V, and 5V cards, and an integrated secure keypad controller. It also provides a seamless interface to monochrome graphic displays and includes a vast array of peripherals, SPIs, UARTs, DMA, ADC, and DAC that add flexibility to control and differentiate the system design.

Key Features

  • Arm Cortex M3 Processor Core Allows for Easy Integration into Applications
    • 108MHz Core Operating Frequency Through PLL
    • 1MB Dual-Bank Flash Memory with Cache
    • 384KB System SRAM
    • 8KB AES Self-Encrypted NVSRAM
  • Security Features Facilitate System-Level Protection
    • Secure Boot Loader with Public Key Authentication
    • AES, DES and SHA Hardware Accelerators
    • Modulo Arithmetic Hardware Accelerator (MAA) Supporting RSA, DSA, and ECDSA
    • 8-Line Secure Keypad Controller
    • Hardware True Random-Number Generator
    • Die Shield with Dynamic Fault Detection
    • 6 External Tamper Sensors with Independent Random Dynamic Patterns
    • 256-Bit Flip-Flop-Based Battery-Backup AES Key Storage
    • Temperature and Voltage Tamper Monitor
    • Real-Time Clock
  • Integrated Peripherals Reduce External Component Count
    • Triple-Track Magnetic Stripe Head Interface
    • Two ISO 7816 Smart Card UART with one that integates a ISO7816 transceiver (1.8V, 3V, and 5V)
    • USB 2.0 Device with Internal Transceiver and Dedicated PLL
    • 3 SPI Ports, 2 UART Ports, and 2 I2C Controller
    • 6 Timers, 4 with PWM Capability
    • Up to 64 General-Purpose I/O Pins
    • 2-Channel, 10-Bit ADC and 1-Channel, 8-Bit DAC
    • Monochrome LCD Controller
    • 4-Channel DMA Controller
    • 1 SPI Execute in Place (XiP) Master
  • Power Management Optimizes Battery Life and
    • Reduces Active Power Consumption
    • Single 3.3V Supply Operation*
    • Integrated Battery-Backup Switch
    • Clock Gating Function,
    • Low-Current Battery-Backup Operation


  • ATM Keyboards
  • Contact Pin Pads
  • EMV Card Reader
  • PCI Mobile Payment Terminals (mPOS)

See parametric specs for Microcontrollers (57)

Part NumberMCU CoreCore Clock Speed
Data ProcessingInternal Flash
Internal SRAM
USARTsSPI BusI2C BusUSBGPIO PinsPWMTimer FeaturesPackage/Pins
MAX32552 ARM Cortex-M310832-bit1000384232 Master
1 x 2.0 FS Device
Device Including Transceiver

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX32552-KIT: Evaluation Kit for the MAX32552

Technical Documents

User Guide 7038 MAX325xx MML-SDK Installation Guide
Request Reliability Report for: MAX32552 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >


Related Resources

Type ID Title
User Guide 7038 MAX325xx MML-SDK Installation Guide