مدار مجتمع (آی سی) آی‌سی واسط ارتباطی کنترلر واسط

Product Attributes

Introduction

The FT220X is a USB to FTDI’s proprietary FT1248 interface and the following advanced features: FT1248 serial parallel interface in 1, 2 or 4 bit wide mode. Similar to an SPI slave in 1 bit mode Entire USB protocol handled on the chip. No USB specific firmware programming required. Fully integrated 2048 byte multi-timeprogrammable (MTP) memory, storing device descriptors and CBUS I/O configuration. 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 to 500kByte/s. 512 byte receive buffer and 512 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. Configurable CBUS I/O pin. USB Battery Charger Detection. Allows for USB peripheral devices to detect the presence of a higher power source to enable improved charging. Device supplied pre-programmed with unique USB serial number. USB Power Configurations; supports buspowered, self-powered and bus-powered with power switching. Integrated +3.3V level converter for USB I/O. True 3.3V CMOS drive output and TTL input. (operates down to 1V8 with external pull-ups) Tolerant of 5V input. Configurable I/O pin output drive strength; 4 mA(min) and 16 mA(max) Integrated power-on-reset circuit. Fully integrated AVCC supply filtering - no external filtering required.

• 5V Single Supply Operation. Internal 3V3/1V8 LDO regulators Low operating and USB suspend current; 8mA (active-typ) and 125uA (suspend-typ). Low USB bandwidth consumption. UHCI/OHCI/EHCI host controller compatible. USB 2.0 Full Speed compatible. Extended operating temperature range; -40 to 85°C. Available in compact Pb-free 16 Pin SSOP and QFN packages (both RoHS compliant).

Applications

• USB to SPI interface in 1-bit mode
• Upgrading Legacy Peripherals to USB Utilising USB to add system modularity
• Incorporate USB interface to enable PC transfers for development system communication
• Interfacing MCU/PLD/FPGA based designs to add USB connectivity
• USB Industrial Control
• Detect USB dedicated charging ports, to allow for high current battery charging in portable devices.