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 FT122 - USB full-speed device controller
The FT122 provides a cost and feature optimized USB full-speed device controller. The design builds on the FT120, by adding battery charger detection and internal clocking to reduce the PCB space required to complete the design. Communicating with a micro-controller over the generic parallel interface the device will appear as another memory device on the processor bus, offering USB connectivity with bulk, isochronous or interrupt endpoints.
 Key Hardware Features
  • USB 2.0 Full Speed compatible
  • Support for multiple interrupt modes to facilitate bulk and isochronous transfers
  • Fully autonomous DMA engines for fast data transfer
  • Supports high-speed parallel interface to external microcontroller
  • Separate address/data or multiplexed address/data bus
  • Integrated 2kbytes of configurable endpoint buffer
  • Double buffer scheme for main endpoint improves data transfer rates.
  • Dedicated clock output pin with programmable clock frequency (4 – 48 MHz)
  • Good USB connection indicator that blinks with USB transmit and receive activities
  • Internal clocking:- no external crystal required
  • Battery Charger Detection
  • Single power supply operation at 3.3V or 5V
  • Internal 1.8V and 3.3V LDO regulators
  • Extended operating temperature range : -40°C to 85°C
  • Available in Pb-free TSSOP-28 and QFN-28 packages (RoHS compliant)
Product information
 
Typical Applications
  • Provide USB port to Microcontrollers
  • Provide USB port to FPGAs
  • USB Industrial Control
  • Utilising USB to add system modularity
  • Replacement for difficult to source (in volume) PDIUSBD12
Related Products

 

  • UMFT12XEV - FT12X Evaluation Board
  • UMFT122DC - FT122 Evaluation Daughter card for use with UMFT12XEV

For more information on these products click here



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