Справочник Пользователя для International Design DLP-USB245R

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Rev. 1.0 (November 2008)                                           1                                              © DLP Design, Inc.
 
 
 
 
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The DLP-USB245R is DLP Design’s smallest USB-to-parallel FIFO interface module and 
utilizes the popular FT245R IC with FTDIChip-ID™ feature from FTDI.  In addition to enabling 
standard USB-to-FIFO designs, both asynchronous and synchronous bit-bang interface modes 
are also available. 
 
The DLP-USB245R is available in a lead-free, RoHS-compliant, compact 18-pin, 0.1-inch 
standard DIP footprint. 
 
 
FEATURES: 
 
• Single-chip USB-to-parallel FIFO bidirectional data-transfer interface. 
• Entire USB protocol handled on the FT245R; no USB-specific firmware programming is 
required. 
• Fully integrated 1024-bit EEPROM storing device descriptors and FIFO I/O configuration. 
• Data transfer rates up to 1Mbyte per second. 
• 256-byte receive buffer and 128-byte transmit buffer utilizing 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 with RD# and WR# strobes. 
• Device supplied preprogrammed with a unique USB serial number. 
• Supports bus-powered, self-powered and high-power bus-powered USB configurations. 
• Integrated level converter on FIFO interface for connection 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 power-supply filtering; no external filtering is required. 
• +3.3V to +5.25V single-supply operation. 
• Low operating and USB Suspend current. 
• UHCI/OHCI/EHCI host-controller compatible. 
• USB 2.0 full-speed compatible. 
• -40°C to 85°C extended operating temperature range.