Hyperstone F4 Flash Memory Controller

F4 - CompactFlash (CF) and Solid State Disk (SSD) Flash Memory Controller

The Hyperstone F4 family of Flash Memory Controllers together with provided application and flash specific firmware offers an easy-to-use turnkey platform for high endurance flash disks of various form factors and interface standards.  

  • Patented superior wear leveling together with ECC ensuring highest reliability and endurance
  • Optimized 32-Bit RISC core, instruction set and firmware for flash handling
  • Dual channel controller provides optimal performance
  • Most power efficient design together with power saving features
  • S.M.A.R.T. and custom features possible with simple firmware upgrades
  • ASSP with no need for external active components
  • Exceptional power fail robustness
  • Turnkey solution including firmware, manufacturing kit, test and development hardware, and reference schematics for a CF card or 2.5" solid state disk, and testmetrix log files
Hyperstone F4 Flash Memory Controller

Target Applications

  • High reliability & industrial CompactFlashTM Cards (CFC)
  • Solid State Disks (SSD)
  • IDE Disk-on-Modules (DoM)
  • Embedded Flash
  • Multi-Chip-Modules (MCM)
  • Multi-Chip-Package (MCP)
  • PCMCIA or ATA PC cards
  • Disk-on-Board

Order Information

  • F4-LAT05 (TQFP 100, 8 CEs, RoHS, 0 to +85 °C)
  • F4-ILAT05 (TQFP 100, 8 CEs, RoHS, -40 to +85 °C)
  • F4-LAT06 (TQFP 128, 16 CEs, RoHS, 0 to +85 °C)
  • F4-ILAT06 (TQFP 128, 16 CEs, RoHS, -40 to +85 °C)


  • Sustained read up to 50 MB/s
  • Sustained write up to 40 MB/s with interleaving
  • Random read up to 40 MB/s
  • Random write up to 9 MB/s
  • Custom optimizations for specified file sizes possible
  • Data transfer rate to flash memories: up to 80 MB/s
  • Host data transfer rate in PIO mode 6 or MDMA mode 4 up to 25 MB/s
  • Host data transfer rate in UDMA mode 4 up to 66 MB/s

Controller & CPU

  • High performance 32-Bit Hyperstone RISC microprocessor
  • 10 to 70 MHz clock frequency using adjustable internal oscillator
  • Large internal RAM provides firmware flexibility
  • Automatic power-down during wait periods, power saving incl. automatic wake-up and sleep mode with Icc < 250 µA
  • Supply voltage 5.0V ± 10 % or 3.3V ± 10%
  • On-chip voltage regulator for 3.3V flash power supply
  • On-chip voltage regulator for 2.5V core power supply
  • Internal voltage detector

Host Interface & Compliance

  • Fully compliant to CompactFlashTM 3.0 and compatible to 4.1 specifications
  • Fast ATA host-to-buffer transfer rates supporting PIO mode 6, MDMA mode 4, UDMA mode 4 in True-IDE mode
  • PCMCIA specification version 2.1
  • Configurable as removable, hot swappable, and fixed drive
  • Memory mapped or I/O operation
  • Automatic sensing of PCMCIA or True-IDE mode
  • Four integrated sector buffers and PCMCIA attribute memory
  • PCMCIA configuration option register, card configuration and status register and pin replacement register support

Flash Memory Interface & Handling

  • Dual channel with two direct flash memory access (DFA) units
  • Supporting all control signals for NAND type flash memory connection
  • Supporting direct connection of up to 16 flash memory chip enables (CE) - eight per channel
  • Flash memory power down logic and flash memory write protect control
  • Error Correcting Code (ECC) capable of correcting 4 symbols in a 512 Bytes sector with additional CRC
  • Firmware storage in flash memory
  • Firmware is loaded into internal memory by the boot ROM
  • Flash management including mapping of logical block addresses (LBA) to corresponding physical block addresses (PBA)
  • Bad Block Management
  • Wear leveling
  • Sudden power-fail management
  • Interleaving, cache, and multi-plane programming