MAXQ1852：DeepCover Secure Microcontroller with Fast Wipe Technology and Cryptography

High-Security Microcontroller for Single-Chip PCI-PTS Smart PIN Pads

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 (MAXQ1852) 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 rapid zeroization of critical data. Four external dynamic tamper sensors allow for a user-defined 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 device 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 MAXQ1852 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 buffers), an RS-232 universal synchronous/asynchronous receiver-transmitter (USART), an SPI interface (master or slave mode support). Other peripherals supported on the MAXQ1852 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.

Key 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
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
- ECDSA-Based Secure Loader
- Unique ID
- Tamper Detection with Fast Wipe Key/Data Destruction
- 4 External Dynamic Tamper Sensors
- 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 32 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
- 1.1µA 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)

Applications/Uses

Certificate Authentication
Electronic Commerce
Electronic Signature Generation
EMV® Banking
Pay-per-Play
Secure Access Control
Secure Data Storage

Parametrics

Part Number	MCU Core	Core Clock Speed (MHz)	Data Processing	Internal Flash (KBytes)	Internal SRAM (KBytes)	USARTs	SPI Bus	USB	GPIO Pins	PWM	Timer Features	Package/Pins
Part Number	MCU Core	max	Data Processing	Internal Flash (KBytes)	Internal SRAM (KBytes)	USARTs	SPI Bus	USB	max	PWM	Timer Features	Package/Pins
MAXQ1852	MAXQ30 (RISC)	16	32-bit	256	8	1	1	USB Device Port	32	2	RTC Watchdog	TQFN/68

Design kits & evaluation modules

MAXQ1852-KIT

Quality and Environmental Data

MAXQ1852.pdf

Ordering Information

Part Number	Status	Package	Temp	RoHS
MAXQ1852-BNJ+	Active	TQFN,;68 pin;65.6 mm²	-40°C to +85°C	Lead Free
MAXQ1852-BNS+	Active	TQFN,;68 pin;65.6 mm²	-40°C to +85°C	Lead Free
MAXQ1852-DNS+	No Longer Available	DICE SALES,;NA pin;BARE D;	-40°C to +85°C	See data sheet
MAXQ1852-LNJ+	No Longer Available	CSBGA;	-40°C to +85°C	See data sheet
MAXQ1852-LNS+	No Longer Available	CSBGA;	-40°C to +85°C	See data sheet

MAXQ1852.pdf MAXQ1852