USB Interface Chip

Product Details:

• Only 35 Instructions to Learn: - All single-cycle instructions except branches
• Operating Speed: - DC – 20 MHz oscillator/clock input - DC – 200 ns instruction cycle
• Interrupt Capability
• 8-Level Deep Hardware Stack
• Direct, Indirect and Relative Addressing modes.

Product Details:

• Single chip USB to asynchronous serial data transfer interface.
• Entire USB protocol handled on the chip. No USB specific firmware programming required.
• Fully integrated 1024 bit EEPROM storing device descriptors and CBUS I/O configuration.
• Fully integrated USB termination resistors. Fully integrated clock generation with no external crystal required plus optional clock output selection enabling a glue-less interface to external MCU or FPGA.
• Data transfer rates from 300 baud to 3 Mbaud (RS422, RS485, RS232) at TTL levels. 128 byte receive buffer and 256 byte transmit buffer utilising buffer smoothing technology to allow for high data throughput. FTDI’s royalty-free Virtual Com Port (VCP) and Direct (D2XX) drivers eliminate the requirement for USB driver development in most cases.
• Unique USB FTDIChip-ID™ feature.
• Configurable CBUS I/O pins.
• Transmit and receive LED drive signals.
• UART interface support for 7 or 8 data bits, 1 or 2 stop bits and odd / even / mark / space / no parity
• FIFO receives and transmits buffers for high data throughput.
• Synchronous and asynchronous bit bang interface options with RD# and WR# strobes. Device supplied pre-programmed with unique USB serial number.
• Supports bus powered, self-powered and highpower bus powered USB configurations. Integrated +3.3V level converter for USB I/O.
• Integrated level converter on UART and CBUS for interfacing to between +1.8V and +5V logic.
• True 5V/3.3V/2.8V/1.8V CMOS drive output and TTL input.
• Configurable I/O pin output drive strength.
• Integrated power-on-reset circuit.
• Fully integrated AVCC supply filtering - no external filtering required.
• UART signal inversion option.
• +3.3V (using external oscillator) to +5.25V (internal oscillator) Single Supply Operation. Low operating and USB suspend current.
• Low USB bandwidth consumption.
• UHCI/OHCI/EHCI host controller compatible. USB 2.0 Full Speed compatible.
• -40°C to 85°C extended operating temperature range.
• Available in compact Pb-free 28 Pin SSOP and QFN-32 packages (both RoHS compliant).