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MAXQ1850
Secure Cryptographic Controller
with Rapid Zeroization Technology
________________________________________________________________
Maxim Integrated Products
1
Rev 0; 1/09
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.
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
.
ABRIDGED DATA SHEET
EVALUATION KIT
AVAILABLE
General Description
The MAXQ1850 is a low-power, 32-bit RISC device
designed for electronic commerce, banking, and data
security systems. It combines high-performance, single-cycle processing, sophisticated tamper-detection
technology, and advanced cryptographic hardware to
provide industry-leading data security and secret key
protection.
Physical security mechanisms include environmental
sensors that detect out of range voltage or temperature
conditions, responding with an instantaneous zeroization of critical data. Four self-destruct inputs are provided for additional tamper response. An internal shield
over the silicon provides protection from microprobe
attacks. A high-speed internal ring oscillator is provided
to thwart attacks that rely on controlling the clock rate of
the chip. To protect data, the MAXQ1850 integrates several high-speed, analysis-resistant encryption engines.
Algorithms supported in hardware include AES (128-,
192-, and 256-bit), DES, triple DES (2-key and 3-key),
ECDSA (160-, 192-, and 256-bit keys), DSA, RSA (up to
2048 bits), SHA-1, SHA-224, and SHA-256. The
advanced security features of the MAXQ1850 are
designed to meet the stringent requirements of regulations such as ITSEC E3 High, FIPS 140-2 Level 3, and
the Common Criteria certifications.
The MAXQ1850 includes 256KB of flash memory and
8KB of secure, battery-backed data SRAM. Several
communication protocols are supported with hardware
engines, including ISO 7816 for smart card applications, USB (slave interface with four end-point buffers),
an RS-232 UART, an SPI™ interface (master or slave
mode support), and up to 16 general-purpose I/O pins.
Other peripherals supported on the MAXQ1850 include
a true hardware random-number generator (RNG), a
real-time clock (RTC), a programmable watchdog timer,
and flexible 16-bit timers that support capture, compare, and pulse-width modulation (PWM) operations.
Applications
Features
♦ High-Performance, Low-Power, 32-Bit MAXQ30
RISC Core
♦ Single 3.3V Supply Enables Low Power/Flexible
Interfacing
♦ DC to 16MHz Code Execution Across Entire
Operating Range
♦ Up to 65MHz Cryptography Engine Execution to
Reduce Processing Time
♦ On-Chip 2x/4x Clock Multiplier
♦ 33 Instructions
♦ 16-Bit Instruction Word, 32-Bit Internal Data Bus
♦ 16 x 32-Bit Accumulators
♦ Up to 16 General-Purpose I/O Pins
♦ 5V Tolerant I/O
♦ Virtually Unlimited Software Stack
♦ Optimized for C-Compiler (High-Speed/Density Code)
♦ Memory Features
♦ Security Features
♦ Additional Peripherals
♦ Low-Power Consumption
Ordering Information
PART TEMP RANGE PIN-PACKAGE
MAXQ1850-BNS+ 0°C to + 70°C 40 TQFN-EP*
Note: A chip-scale BGA (CSBGA) version of the MAXQ1850 is
in development. Contact the factory for more information.
+
Denotes a lead(Pb)-free/RoHS-compliant package.
*
EP = Exposed pad.
Pin Configuration and Selector Guide appear at end of data
sheet.
See the
Detailed Features
section for complete list of features.
Electronic Commerce
EMV™ Banking
Secure Access Control
Secure Data Storage
Pay-per-Play
Certificate Authentication
Electronic Signature
Generation
EMV is a trademark owned by EMVCo LLC.
SPI is a trademark of Motorola, Inc.
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MAXQ1850
Secure Cryptographic Controller
with Rapid Zeroization Technology
6 _______________________________________________________________________________________
ABRIDGED DATA SHEET
Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
Block Diagram
Refer to the full data sheet.
JTAG/
DEBUG
256KB
FLASH
16KB
ROM
8KB
NV SRAM
MAXQ1850
NOTE: THE BLOCK DIAGRAM SHOWS A TYPICAL SYSTEM CLOCK USED TO SUPPORT USB OPERATION AT 12MHz. MULTIPLE EXTERNAL CRYSTAL/CLOCK OPTIONS
ARE AVAILABLE.
AESRNGTIMERS
DSADES
ECDSARSA
MAXQ30
CORE
UART
USB
SPI
ISO 7816
GPIO
CORE
CRYPTO
OSC
OSC
RTC PLL
32kHz 12MHz
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MAXQ1850
Detailed Features
♦ High-Performance, Low-Power, 32-Bit MAXQ30
RISC Core
♦ Single 3.3V Supply Enables Low Power/Flexible
Interfacing
♦ DC to 16MHz Code Execution Across Entire
Operating Range
♦ Up to 65MHz Cryptography Engine Execution to
Reduce Processing Time
♦ On-Chip 2x/4x Clock Multiplier
♦ 33 Instructions
♦ Three Independent Data Pointers Accelerate Data
Movement with Automatic Increment/Decrement
♦ 16-Bit Instruction Word, 32-Bit Internal Data Bus
♦ 16 x 32-Bit Accumulators
♦ Up to 16 General-Purpose I/O Pins
♦ 5V Tolerant I/O
♦ Virtually Unlimited Software Stack
♦ Optimized for C-Compiler (High-Speed/Density Code)
♦ Memory Features
256KB Flash, Composed of 512 Byte Sectors
(1K Erase/Write Cycles per Sector)
8KB Battery-Backed Data SRAM
Dedicated Cryptographic Memory Space
♦ Security Features
Unique ID
Tamper Detection with Rapid Key/Data Destruction
Four Self-Destruct Inputs
Hardware AES and DES Engines
Public Key Cryptographic Accelerator for DSA,
ECDSA, and RSA
Real Hardware RNG and PRNG
Hardware CRC-32/16
Unalterable, Battery-Backed Real-Time Clock
♦ Additional Peripherals
Power-Fail Warning
Power-On Reset/Brownout Reset
JTAG I/F for System Programming and
Accessing On-Chip Debugger
USB I/F with Four End-Point Buffers
ISO 7816 Smart Card UART with FIFO
16-Bit Programmable Timers/Counters with
Prescaler, Capture/Compare, and PWM
SPI and UART Communication Ports
Programmable Watchdog Timer
♦ Low-Power Consumption
130nA Typical Current Draw in Battery-Backed Mode,
Preserving 8KB NV SRAM and with Security
Sensors Active (460nA with RTC Active)
Detailed Description
Refer to the full data sheet.
Note to readers: This document is an abridged version of the full data sheet. To request the full data sheet, go to
www.maxim-ic.com/MAXQ1850
and click on Request Full Data Sheet.
Secure Cryptographic Controller
with Rapid Zeroization Technology
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ABRIDGED DATA SHEET
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