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FT245B 参数 Datasheet PDF下载

FT245B图片预览
型号: FT245B
PDF下载: 下载PDF文件 查看货源
内容描述: [上海格里电子科技有限公司是英国FTDI在中国大陆东南亚地区最大的代理商, FTDI一贯坚持USB make easy思想,为工程师提供最简便的解决方案 上海格里电子科技有限公司是英国FTDI在中国大陆东南亚地区最大的代理商, FTDI一贯坚持USB make easy思想,为工程师提供最简便的解决方案: *VNC2 实现UART、FIFO、IIC、SPI、JTAG转到USB HOST接口,可与其他USB DEVICE设备通讯。FTDI提供简单操作命令,工程师只需调用驱动中相应函数,便可实 现对USB device的控制。 *FT232实现单路USB转到UART,包括TTL,及RS485、RS422、RS232等接口。 *FT245实现单路USB转到FIFO,最高能实现8Mbit/s传输速率。 *FT2232H 实现单USB接口转到2通道芯片,每通道可分别配置成UART、FIFO、IIC、 SPI、JTAG等接口。当配置成2路并行FIFO时,每路最大速率达到10MByte/s;当配 置成单路串行FIFO时,可实现最高25MByte/s速率。 *FT42]
分类和应用: 先进先出芯片电子驱动电话
文件页数/大小: 24 页 / 541 K
品牌: FTDI [ FUTURE TECHNOLOGY DEVICES INTERNATIONAL LTD. ]
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FT245BL USB FIFO ( USB - Parallel ) I.C.  
8.0 Document Revision History  
DS245B Version 1.0 – Initial document created 8th August 2002.  
DS245B Version 1.1 – Updated 23 October 2003  
Pin and package naming made consistent throughout data sheet.  
Section 1.0 Corrected data transfer rate for VCP drivers.  
Section 1.0 Amended to reflect availability of Mac OS X drivers.  
Section 1.1 Description of behaviour of TXE# and RXF# amended.  
Section 3.1 Minor changes to functional block descriptions.  
Section 2.0 Compatible EEPROM configurations corrected.  
Section 4.1 SI/WU Pin description amended.  
Section 4.1 RSTOUT# Pin description amended.  
Section 4.1 EEPROM interface Pin descriptions amended.  
Section 4.1 Note 2 should have referred to VCCIO, not VCC.  
Section 4.1 FIFO timing diagram amended.  
Section 6.1 Minimum Operating supply voltage adjusted.  
Section 7.1 Updated recommended ceramic resonator part number and circuit configuration.  
Section 7.3 “USB Self Powered Configuration (1)” (original Figure 8) removed. Recommended circuit for USB self powered designs updated.  
Section 7.3 Self Powered Circuit with 3.3V logic drive / supply voltage added (new figure 8).  
Section 7.3 Figure 11 Bus powered circuit with power control updated to add soft start circuit on MOSFET. Circuit description amended.  
DS245B Version 1.2 – Updated 20 November 2003.  
Section 6.1 FIFO Data control Bus IO pin characteristics amended  
Section 6.1 RESET#, TEST, EECS, EESK, and EEDATA pin characteristics amended.  
Section 6.1 RSTOUT# pin characteristics amended.  
DS245B Version 1.3 – Updated 10 December 2003  
Section 5.0 Package drawing amended.  
Section 6.0 Floor Life / Relative Humidity specification added. ESD and Latch Up specifications amended.  
Section 7.1 Required accuracy of crystal / resonator corrected.  
DS245B Version 1.4 – Updated 10 February 2004  
Grammar Corrections.  
Section 10.0 FTDI Address Updated  
Section 4.1 VCCIO Pin description ammended.  
DS245B Version 1.5 – Updated March 2004  
Section 4.1 FIFO EESK Pin Description amended.  
Section 4.1 FIFO WR timings and diagram amended.  
Section 7.3 Figure 10 SI/WU Pin number corrected  
Section 7.3 Figure 11 PWREN# Pin number corrected  
DS245B Version 1.6 – Updated February 2005  
Section 1 - Win CE VCP drivers now available  
Section 1 - D2XX drivers for Win CE and Linux now available  
Section 5 FT245BL (lead free) and FT245BQ (lead free QFN package) now available  
DS245B Version 1.6 – Updated February 2005  
Section 1 - Driver OS availabillity updated  
Section 6.1 - USB Data line absolute maximum rating added.  
DS245BL Version 1.7  
© Future Technology Devices Intl. Ltd. 2005  
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