MAXQ1050：DeepCover Secure Microcontroller with USB and Hardware Cryptography

Small Footprint Cryptographic Microcontroller with Advanced Physical Security

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 (MAXQ1050) was designed for USB secure token and smart card reader applications that require certificate-based or other public key cryptographic schemes. The device also incorporates a sophisticated security mechanism to protect secret key data; two self-destruct inputs and environmental monitors (temperature and voltage sensors) erase secret key data when an attack condition is detected. The device has an integrated full-speed USB device interface (including transceiver), hardware SPI controller, and an ISO 7816 UART (universal asynchronous receiver-transmitter) for smart card communication. The device supports high-speed encryption with hardware accelerators for AES, RSA, DSA, ECDSA, SHA-1, SHA-224, SHA-256, DES, and 3DES. A true hardware random-number generator is included for key generation and challenge generation. The device uses the 32-bit, pipelined, highly efficient MAXQ30 microcontroller core. It integrates 128KB flash memory, 12KB of volatile SRAM, 4KB of battery-backed erasable NV SRAM, and 256B of battery-backed, secure zeroization NV SRAM. An additional 1.5KB of volatile cryptographic memory can also be used as general-purpose data memory. The 256B of battery-backed NV SRAM can be used for key storage and other critical data. The 256B memory can be erased in less than 1µs using a single pulse ("rapid zeroization"), even in battery-backed mode. The device is powered either from the USB bus or by a separate 3.3V voltage supply. A battery connection is provided for applications that want to maintain secret key data for years without draining the battery from application use. In battery-backed mode, the NV SRAM and security sensors consume less than 240nA (typ). Battery backup is optional; applications can choose to store critical data in the flash memory when the cost of the battery outweighs the benefits of constant monitoring for tamper conditions.

Key Features

High-Performance, Low-Power, 32-Bit MAXQ30 RISC Core
Operates from USB Power or Single 3.3V Supply
Runs from 20MHz (typ) Internal Oscillator
Supports External 12/24MHz Crystal Oscillator for Microcontroller and USB Operation
On-Chip 2x/4x Clock Multiplier
16-Bit Instruction Word, 32-Bit Internal Data Bus
16 x 32-Bit Accumulators
16 x 32-Bit General-Purpose Working Registers
Up to 20 General-Purpose I/O Pins
5V Tolerant I/O
Virtually Unlimited Software Stack
Optimized for C-Compiler (High-Speed/Density Code)
Memory
- 128KB Flash Memory, 512 x 32 Page Size
- Flash Memory Supports 20k Erase/Write Cycles per Sector
- 256B of Secure NV SRAM
- 4KB Battery-Backed NV SRAM
- 12KB SRAM
- Secure JTAG/TAP for In-System Programming and On-Chip Debugger Access
Security
- Unique 64-Bit Serial Number
- Tamper Detection with Rapid Key/Data Destruction
- Secret Key Destruction on Tamper Events
- Permanent Loader Lockout Option
- Proprietary Code Scrambling Technique Using Random Keys
- Hardware Accelerators for AES, RSA, DSA, ECDSA, DES, 3DES, SHA-1, SHA-224, SHA-256
- True Hardware Random-Number Generator
- Temperature and Voltage Sensors to Detect Attacks
- Two Self-Destruct Input Pins
Additional Peripherals
- Power-Fail Warning
- Power-On-Reset/Brownout Reset
- Full-Speed USB Device with Six Endpoint Buffers and Integrated Transceiver
- ISO 7816 Smart Card UART with FIFO
- 16-Bit Programmable Timers/Counters with Prescaler, Capture/Compare, and PWM
- SPI Master/Slave Hardware
- Programmable Watchdog Timer
- Up to 20 General-Purpose I/O Pins with Eight External Interrupts

Applications/Uses

Certificate Management
e-Commerce
Electronic Signature Generation
Pay-per-Play
Prepaid Utility
Secure Access Control
Security and Banking Tokens
Smart Grid Security

DataSheet

title	Download file
MAXQ1050 Data Sheet	MAXQ1050.pdf
Errata MAXQ1050	MAXQ1050A3.pdf

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
MAXQ1050	MAXQ30 (RISC)	24	32-bit	128	12	1	1	Device Including Transceiver	20	2	Capture/Compare Watchdog	TQFN/40

Quality and Environmental Data

MAXQ1050.pdf

Ordering Information

Part Number	Status	Package	Temp	RoHS
MAXQ1050-BNS+	Active	TQFN,;40 pin;26 mm²	-40°C to +85°C	Lead Free
MAXQ1050-DNS+	Active	DICE SALES,;NA pin;DICE S;	-40°C to +85°C	See data sheet
MAXQ1050-KIT#	Active	EVKIT;	0°C to +70°C	See data sheet