DeepCover Secure Microcontroller for Security Tokens with RTC and USB

Single-Chip Solution for Secure USB Applications with Secure Key Storage

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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 (MAXQ1010) was designed for security token applications and battery-powered applications where power and security are both critically important.

The microcontroller family contains a 32KB, 64KB, or 128KB programmable flash memory that can be used for both application code and data storage. Each 512B flash memory page supports 20,000 erase cycles and is programmable 16 bits at a time. This allows for unique schemes to extend the lifetime of the flash. For instance, dedicating four flash pages to store 32B of data that changes very often, the effective number of write cycles can approach 1.2 million (4 x 512 x 20,000/32). The device also contains 1KB or 2KB SRAM. An additional 128B secure key storage SRAM is instantly erased when a self-destruct input is triggered.

The microcontroller also contains a hardware DES engine and an AES accelerator, allowing applications to quickly respond to challenges and authenticate other devices using standards-based cryptography. A true-hardware random-number generator (RNG) is available for general application use, such as key generation, challenge generation, and random padding. Firmware and reference designs are available from Maxim for authentication applications.

Multiple communication interfaces are implemented; an integrated USB transceiver and serial interface engine make USB applications extremely low cost. Other communication options include ISO 7816 UART, SPI, I²C, and a standard USART (universal synchronous/asynchronous receiver-transmitter). A real-time clock (RTC) is also included for security applications requiring a time base.

For the ultimate in low-power battery-operated performance, an ultra-low-power stop mode (400nA typ) is included. In this mode, the minimum amount of circuitry is powered. Wake-up sources include external interrupts, the power-fail interrupt, a wake-up timer interrupt, and an RTC interrupt.

Designers must have the following documents to fully use all the features of this device. The data sheet contains pin descriptions, feature overviews, and electrical specifications. Errata sheets contain deviations from published specifications. The user's guides offer detailed information about device features and operation.
MAXQ1010: Block Diagram MAXQ1010: Block Diagram Enlarge+

Key Features

  • High-Performance, Low-Power, 16-Bit RISC Core
  • DC to 12MHz Operation Across Entire Operating Range
  • 6MHz Internal Oscillator
  • 12MHz External Crystal (Required for USB Operation)
  • 1.7V to 3.6V Operating Voltage Range
  • 33 Total Instructions for Simplified Programming
  • Three Independent Data Pointers Accelerate Data Movement with Automatic Increment/Decrement
  • Dedicated Pointer for Direct Read from Code Space
  • 16-Bit Instruction Word, 16-Bit Data Bus
  • 16 x 16-Bit General-Purpose Working Registers
  • 1-Wire® Interface for Debugger and Flash Programming
  • Security Features
    • DES and AES Hardware Accelerators
    • Hardware True RNG
    • Self-Destruct Input Pin
    • 128B, Fast Wipe, Secure Secret Key SRAM
    • RTC with Integrated Oscillator
  • Memory
    • 32/64/128KB Flash
      • 512-Bytes Memory Page Sectors
      • 20,000 Erase/Write Cycles per Sector
    • Up to 2KB Data SRAM
    • 6KB Utility ROM with User-Callable Routines
  • I/O and Peripherals
    • USB 2.0 SIE and Transceiver
    • SPI and USART I²C Communication Ports
    • ISO 7816 UART
    • 31 General-Purpose I/O Pins
    • Up to 15 External Interrupts Available
  • Low Power Consumption
    • Single 1.7V to 3.6V Supply
    • < 1µA Current in Lowest Power Stop Mode
    • Divided System Clock Modes Available
  • Additional Peripherals
    • Power-Fail Warning
    • Power-On Reset (POR)
    • Programmable Watchdog Timer


  • One-Time Password Generator
  • USB Card Readers

See parametric specs for Microcontrollers (55)

Part NumberMCU CoreCore Clock Speed
Data ProcessingInternal Flash
Internal SRAM
UARTsUSARTsSPI BusI2C BusUSBGPIO PinsTimer FeaturesPackage/Pins
MAXQ1010 MAXQ201216-bit12821111 Master/SlaveSIE/Transceiver31

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.
Product Reliability Reports: MAXQ1010.pdf 
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 >


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