U8 Flash Memory Controller

Reliable NAND Flash Controller for Industrial Storage Solutions

U8 Flash Controller

USB 2.0 Flash Memory Controller

The Hyperstone U8 family of Flash Memory Controllers together with provided application and Flash specific firmware offers an easy-to-use turnkey platform for industrial high endurance robust Flash Memory Cards or modules compatible to host systems with USB 2.0 interfaces.

  • Designed to satisfy industrial requirements
  • hyReliability™ Flash Management including superior wear leveling, read disturb management, and power fail management ensuring highest reliability and endurance
  • Continuously updated Flash Memory chip support and long term availability
  • Flexible 96-Bit/1K BCH ECC engine supporting all Flash Memory requirements
  • Optimized 32-Bit RISC core, instruction set for Flash Memory handling
  • High performance on-the-fly AES 128 and 256 encryption engine, CBC, XTS modes, Hardware RNG 
  • Custom features can be implemented with simple firmware upgrades
  • 16 GPIO for customer specific applications supporting SPI, I2C, and ISO 7816
  • Turnkey solution including firmware, manufacturing kit, test and development hardware, as well as reference schematics

Download U8 Product Flyer

U8 Product Information

Target Application

  • Industrial USB Flash Drive
  • eUSB, embedded USB module
  • Ultra durable Flash Drive
  • Security Flash Drive
  • Multi-Chip-Package (MCP)
  • Disk-on-Board

Performance

  • Host transfer rate of up to 480 MBit/s
  • Sequential read and write up to 35 MB/s

Host Interface & Compliance

  • Fully compliant to USB 2.0 specifications
  • USB mass storage device class (MSC)
  • USB human interface device class (HID) support is possible
  • 4 configurable endpoints
  • Hi-speed and Full-speed mode possible
  • Bulk, isochronous, and interrupt transfer modes
  • S.M.A.R.T. and Secure Erase support using ATA pass through
  • Configurable Early-Acknowledge

Controller & CPU

  • High performance 32-Bit Hyperstone RISC microprocessor
  • Large internal RAM provides firmware flexibility
  • 16 GPIO pins for customer specific applications, multiplexed interface options include: 16 GPIO, SPI, I2C, 4 x CE and ISO 7816 
  • Unique ID for security applications
  • AES encryption engine 128 and 256-Bit, CBC, and XTS modes supported, high performance on-the-fly encryption/decryption
  • Hardware RNG
  • Flexible clock frequency generation through internal oscillator and PLL
  • Automatic power down mode during wait periods for host data of Flash Memory operation completion, automatic sleep mode during host inactivity periods
  • On-chip voltage regulator for 3.3V to 1.2V controller core power
  • Current consumption in suspend mode 0.7 mA (typical)

Flash Memory & Interface Handling

  • Direct Flash Memory Access (DFA) co-processor including page buffers and interleaving capability
  • Synchronous DDR interface compliant with Toggle DDR and ONFI 2.3, compatible with all DDR Flash Memory devices
  • Asynchronous SDR interface, ONFI 1.0 compliant, compatible with all legacy interface Flashes
  • Data transfer rate to Flash up to 133 MB/s
  • Flexible 96-Bit/1K BCH ECC engine
  • CRC for additional reliability
  • Direct connection of up to 8 Flash Memory chip enables (CE) 
  • Flash memory power down logic and Flash Memory write protect control
  • Supporting all Flash technologies and all page sizes up to 16 KB
  • On-chip voltage regulator for 1.8V Flash Memory I/O power

Flash Memory Management

  • hyReliability™ Flash Memory Management optimizing reliability, power fail safety, endurance, data retention, and performance
  • Complete Flash Translation Layer (FTL) for random Flash data access including mapping of logical block addresses (LBA) to physical block addresses (PBA)
  • Bad Block Management
  • Static and Global Wear leveling to maximize write endurance
  • Inherent on-the-fly garbage collection
  • Read Disturb Management, dynamic data refresh to maximize data retention and refresh data subject to read disturbance
  • Management of sudden power-fails
  • Interleaving, cache, and multi-plane programming
  • Firmware is stored redundantly for recovery and refresh
  • In-Field Firmware update without user data loss
  • Customized firmware, optimizations und feature implementations possible upon request

Block Diagram
Order Information

  • U8-RAQ03 (QFN 76, 9.0 x 9.0 x 0.9mm, 8 CEs, RoHS, -40 to +85 °C)
  • U8-0ABD0 (Tested Die / Wafer)

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