The FT120 is a USB controller developed independently with close consideration of the industry classic, D12 chip. It communicates with a microcontroller over the generic parallel interface. The FT120 has the following advanced features:

• USB 2.0 Full Speed compatible.
• High performance USB device controller with integrated SIE, endpoint buffer, transceiver and voltage regulators.
• Supports 8-bit parallel interface to external microcontroller.
• Supports DMA operation
• Integrated 320 bytes of configurable endpoint buffer
• Ping-pong buffer scheme for primary endpoint increases data transfer throughput
• Multiple interrupt modes to facilitate both bulk and isochronous transfers.
• Dedicated clock output pin with programmable clock frequency (4 – 24 MHz)
• 30 kHz output clock provided during suspend.
• Integrated D+ pull-up resistor for USB connection
• USB connection indicator that toggles with USB transmit and receive activities.
• Supports bus-powered or self-powered applications.
• Single power supply operation at 3.3V or 5V.
• Internal 1.8V and 3.3V LDO regulators
• Integrated power-on-reset circuit.
• UHCI/OHCI/EHCI host controller compatible.
• -40°C to 85°C extended operating temperature range.
• Available in Pb-free TSSOP-28 and QFN-28 packages (RoHS compliant).

Typical Applications
• Provide USB port to Microcontrollers
• Provide USB port to FPGA’s
• USB Industrial Control
• Mass storage data transfers for multitude of embedded systems applications, including medical, industrial data-logger, powermetering, and test instrumentation
• Utilising USB to add system modularity
• Isochronous support for video applications in security, industrial control, and quality inspections