FT245BM USB FIFO ( USB - Parallel ) I.C.
■The FT245BM is the 2nd generation of FTDI's popular USB FIFO I.C. This device not only adds extra functionality to its FT8U245AM predecessor and reduces external component count, but also maintains a high degree of pin compatibility with the original, making it easy to upgrade or cost reduce existing designs as well as increasing the potential for using the device in new application areas.
●General Description
■The FT245BM provides an easy cost-effective method of transferring data to / from a peripheral and a host P.C. at up to 8 Million bits (1 Megabyte) per second. Its simple, FIFO-like design makes it easy to interface to any microcontroller or microprocessor via IO ports.
■To send data from the peripheral to the host computer, simply write the byte-wide data into the module when TXE# is low. If the (384-byte) transmit buffer fills up or is busy storing the previously written byte, the device keeps TXE# high in order to stop further data from being written until some of the FIFO data has been transferred over USB to the host. TXE# goes high after every byte written.
■When the host sends data to the peripheral over USB, the device will take RXF# low to let the peripheral know that at least one byte of data is available. The peripheral can read a data byte every time RXF# goes low. RXF# goes high after every byte read.
■By using FTDI's virtual COM port drivers, the peripheral looks like a standard COM port to the application software. Commands to set the baud rate are ignored - the device always transfers data at its fastest rate regardless of the application's baud-rate setting. Alternatively, FTDI's D2XX drivers allow application software to access the device "directly" through a published DLL based API.
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FT245BM 、 FT8U245AM 、 FT245BQ 、 FT232BM 、 93C46 、 93C56 、 93C66 、 93LC46B 、 FT245BL 、 CSTCR6M00G15 、 TC55 、 NDT456P 、 IRLML6402 、 MIC2025-2BM 、 240-1035-1 |
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[ USB Instrumentation ][ USB Industrial Control ][ USB MP3 Player Interface ][ USB FLASH Card Reader / Writers ][ Set Top Box (S.T.B.) PC - USB interface ][ USB Digital Camera Interface ][ USB Hardware Modems ][ USB Wireless Modems ] |
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Datasheet |
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Please see the document for details |
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32LD LQFP |
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English Chinese Chinese and English Japanese |
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December 2005 |
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Version 1.7 |
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DS245B |
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1.2 MB |
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