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 FT122 - USB full-speed device controller
Note that this product is now obsolete and is not recommended for new designs.
if there is any demand, please send in your enquiry for special support.
For more information, please click here to contact us.

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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