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FT245RL

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產品介紹

The FT245R is a USB to parallel FIFO interface with the following advanced features:  Single chip USB to parallel FIFO bidirectional 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 FIFO I/O configuration.  Fully integrated USB termination resistors.  Fully integrated clock generation with no external crystal required.  Data transfer rates up to 1Mbyte / second.  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 FIFO interface I/O pins.  Synchronous and asynchronous bit bang interface options.  Device supplied pre-programmed with unique USB serial number.  Supports bus powered, self powered and high-power bus powered USB configurations.  Integrated +3.3V level converter for USB I/O.  Integrated level converter on FIFO interface for interfacing to external logic running at between +1.8V and +5V.  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.  +3.3V (using external oscillator) to +5.25V (using 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 QFN32 packages (both RoHS compliant).

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