MAXQ1851 Datasheet, PDF (1/2 Pages) Maxim Integrated Products – DeepCover Secure Microcontroller with Fast Wipe Technology and Cryptography

MAXQ1851
ABRIDGED DATA SHEET
DeepCover Secure Microcontroller with
Fast Wipe Technology and Cryptography
General Description
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 (MAXQ1851) is a low-
power, 32-bit RISC device designed for electronic commerce,
banking, and data security systems. It combines high-perfor-
mance, single-cycle processing, sophisticated tamper-detec-
tion technology, and advanced cryptographic hardware to pro-
vide industry-leading data security and secret key protection.
Physical security mechanisms include environmental sen-
sors that detect out of range voltage or temperature con-
ditions, responding with rapid zeroization of critical data.
Four self-destruct inputs are provided for additional tam-
per 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
MAXQ1851 integrates several high-speed 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
device’s advanced security features 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 MAXQ1851 includes 256KB of flash memory, 8KB of
SRAM, 4KB of AES encryptable battery-backed SRAM,
and 256-bit secure, battery-backed, flip-flop-based key
storage. Several communication protocols are supported
with hardware engines, including ISO 7816 for smart card
applications, USB (slave interface with four end-point buf-
fers), an RS-232 universal synchronous/asynchronous
receiver-transmitter (USART), an SPI interface (master
or slave mode support), and up to 16 general-purpose
I/O pins. Other peripherals supported on the MAXQ1851
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
● Electronic Commerce
● EMV^® Banking
● Secure Access Control
● Secure Data Storage
● Pay-per-Play
● Certificate Authentication
● E lectronic Signature
Generation
Ordering Information appears at end of data sheet.
For related parts and recommended products to use with this part, refer
to www.maximintegrated.com/MAXQ1851.related.
DeepCover is a registered trademark of Maxim Integrated Products, Inc.
EMV is a registered trademark of EMVCo LLC.
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
● On-Chip 2x/4x Clock Multiplier
● 33 Instructions
● 16-Bit Instruction Word, 32-Bit Internal Data Bus
● 16 x 32-Bit Accumulators
● Virtually Unlimited Software Stack
● Optimized for C-Compiler (High-Speed/Density Code)
● Security Features
• 65MHz Cryptography Engine Execution to Reduce
Processing Time
• Unique ID
• Tamper Detection with Fast Wipe Key/Data Destruction
• 4 Self-Destruct Inputs
• Hardware AES and DES Engines
• Public Key Cryptographic Accelerator for DSA,
ECDSA, and RSA
• Supports SHA-1, SHA-224, and SHA-256
• True Hardware RNG and PRNG
• Unalterable, Battery-Backed RTC
• Hardware CRC-32/16
● Memory
• 256KB Flash, Composed of 2048-Byte Pages
(20K Erase/Write Cycles per Sector)
• 8KB SRAM, 4KB Battery-Backed SRAM
• 256-Bit, Battery-Backed, Flip-Flop-Based Secure
Key Storage
• Dedicated Cryptographic Memory Space
● I/O and Peripherals
• Up to 16 General-Purpose I/O Pins
• 5V Tolerant I/O
• 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
• 4 16-Bit Timer/Counters, Two with PWM Function
• SPI and USART Communication Ports
• Programmable Watchdog Timer
● Low-Power Consumption
• 550nA typ Current Draw in Battery-Backed Mode,
Preserving 4KB AES Encryptable NV SRAM
and 256-Bit Flip-Flop-Based Secure Master Key
Storage, with Security Sensors Active (1.5μA
with RTC and Active Die Shield Enabled)
19-6618; Rev 0; 5/13