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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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USB245 Fiches technique(PDF) 1 Page - List of Unclassifed Manufacturers |
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USB245 Fiches technique(HTML) 1 Page - List of Unclassifed Manufacturers |
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1 / 6 page  Res. [1] [24] VCC Res. [2] [23] FILTER_VCC Res. [3] [22] USB_VCC SD7 [4] [21] DM SD6 [5] [20] DP SD5 [6] [19] GND SD4 [7] [18] TXE# SD3 [8] [17] WRITE SD2 [9] [16] READ# SD1 [10] [15] RESET# SD0 [11] [14] RXF# GND [12] [13] RCCLK Res. Reserved, Unconnected. Do not use. SD(0..7) Data Bus. Driven when READ# is asserted. Data inputs when WRITE is asserted. RCCLK Output of the onboard RC Timer. RXF# Active low output. When asserted, receive data is available, and can be read from FIFO. RESET# Active Low output. Remains low for 140msec after power-up, then goes high. READ# Active Low input. When low, the device drives the current receive FIFO data onto SD0-SD7. WRITE Input that Clocks Data at SD0-SD7 into transmit FIFO on a High-to-Low transition. TXE# Active Low Output. When asserted, signifies transmit FIFO space is available. DP USB Plus Data Signal. DM USB Minus Data Signal. USB_VCC Input to onboard 5volt power filter. FILTER_VCC Output of onboard 5volt power filter. VCC 5 Volt power input. GND Ground. Pinout Information The USB245 is small, easy to use device with all necessary timing circuits, and power filtering built in. Each contains a preprogrammed EEPROM which holds the device and vendor ID codes. The 8-bit data bus easily connects to processor data buses. The two control bus lines (READ# and WRITE) direct data flow from the device, while two status lines (TXE# and RXF#) give information about the state of the internal transmit and receive FIFOs. The status lines can also be used as interrupt sources for the processor. The onboard RESET# line is routed externally and can be used to drive other circuits. The device can be wired to derive and source power from the USB bus, or alternatively have power sourced from the processor interface. • USB ver1.1 compatible device with a 384 byte transmit FIFO and 128 Byte receive FIFO. • Works with FTDI’s Virtual Com Port (VCP) and D2XX Drivers for Microsoft Windows. • Small Size: Surface Mount Technology allows the device to fit in standard 24 pin DIP socket. • Preprogrammed 93C46 EEPROM with unique USB device information. • Easy to use 8-bit microcontroller- microprocessor interface with FIFO status lines USB245 All Trademarks are property of their respective owners © 2002 Xylotex www.xylotex.com |
Numéro de pièce similaire - USB245 |
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Description similaire - USB245 |
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