The FT121Q-R is an enhanced USB Device Controller IC with SPI slave, provides an SPI slave interface to the host processor and has internal clocking allowing for space optimised designs. Offering USB connectivity with bulk, isochronous or interrupt endpoints, USB battery charger detection for recharging battery operated devices over USB. The USB device controller which interfaces with microcontrollers via an SPI slave interface. USB 2.0 full-speed compatible SPI slave interface to host processor.
USB 2.0 full-speed compatible
SPI slave interface to host processor
Support for multiple interrupt modes to facilitate bulk and isochronous transfers
Fully autonomous DMA engines for fast data transfer
Integrated 2kb configurable endpoint buffer
Double buffer scheme for main endpoint improves data transfer rates
Good USB connection indicator that blinks with USB transmit and receive activities
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