ABRIDGED DATA SHEET
19-5259; Rev 0; 4/10
Security Token Microcontroller
with RTC and USB
General Description
The MAXQ1010 is a small, low-cost, low-power secure
microcontroller 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 engi-
ne 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 com-
munication options include ISO 7816 UART, SPIK, I
2
C,
and a standard USART (universal synchronous/asynchro-
nous 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 perfor-
mance, 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.
S
6MHz Internal Oscillator
S
12MHz External Crystal (Required for USB Operation)
S
1.7V to 3.6V Operating Voltage Range
S
33 Total Instructions for Simplified Programming
S
Three Independent Data Pointers Accelerate Data
S
S
S
S
S
Features
S
High-Performance, Low-Power, 16-Bit RISC Core
S
DC to 12MHz Operation Across Entire Operating Range
MAXQ1010
S
S
S
S
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-Byte 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 I
2
C 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
Ordering Information
PART
MAXQ1010-A01+
MAXQ1010X-0000+*
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
48 TQFN-EP**
Bare die
Applications
One-Time Password Generator
USB Card Readers
MAXQ and 1-Wire are registered trademarks of Maxim
Integrated Products, Inc.
SPI is a trademark of Motorola, Inc.
Ordering Information continued on last page.
+Denotes
a lead(Pb)-free/RoHS-compliant package.
*Contact
factory for availability.
**EP
= Exposed pad.
Selector Guide appears at end of data sheet.
Note:
Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device
may be simultaneously available through various sales channels. For information about device errata, go to:
www.maxim-ic.com/errata.
_______________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
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