USB 2.0 Controller | Flash Memory Controller

U8 | USB 2.0 NAND Flash Controller

Reliable USB 2.0 NAND Flash Controller for Industrial grade USB Flash Drives, eUSB Modules, MCPs & DoB Storage Solutions

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 interface.

Designed to satisfy industrial requirements
hyReliability™ Flash Management
hyMap® Flash Translation Layer and mapping
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
Custom features can be implemented with simple firmware upgrades
Turnkey solution including firmware, manufacturing kit, test and development hardware, as well as reference schematics

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Hyperstone U8B NAND Flash Memory Controller

U-450 / U-48

Swissbit eUSB 2.0 Modules

USB 2.0
U-450 SLC based NAND
U-48 3D NAND pSLC
Page based FTL for high endurance
Oval mounting hole for mechanical stress reduction
Industrial temp. range -40°C to 85°C and 0°C to 70°C
Standard and low profile connector

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Additional 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
Unique ID for security applications
AES encryption engine 128 and 256-Bit
High performance on-the-fly encryption/decryption
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
Supply voltage 3.3V ± 5%
Application Programming Interface (API) and Software Development Kit (SDK)

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 200 MB/s
Flexible 96-Bit/1K BCH ECC engine
CRC for additional reliability
Direct connection of up to 4 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

Block Diagram

Order Information

U8-RBQ03 (QFN 76, 9.0 x 9.0 x 0.9mm, 4 CEs, RoHS, -40 to +85 °C)
U8-RB1Q03 (QFN 76, 9.0 x 9.0 x 0.9mm, 4 CEs, RoHS, -40 to +85 °C)

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U8 NAND Flash Controller

U8 | USB 2.0 NAND Flash Controller

U-450 / U-48

Additional U8 Product Information

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