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參數(shù)資料
| 型號： | FT2232HL-TRAY |
| 廠商： | FTDI, Future Technology Devices International Ltd |
| 文件頁數(shù)： | 31/67頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC USB HS DUAL UART/FIFO 64-LQFP |
| 標準包裝： | 160 |
| 系列： | USBmadeEZ-FIFO，F(xiàn)T-X，X-Chip |
| 特點： | USB 至 UART 和（或）FIFO、SPI、I2C、JTAG |
| 通道數(shù)： | 2，DUART |
| FIFO's： | 4096 字節(jié) |
| 規(guī)程： | RS232，RS422，RS485 |
| 電源電壓： | 3 V ~ 3.6 V |
| 帶并行端口： | 是 |
| 帶自動流量控制功能： | 是 |
| 帶調(diào)制解調(diào)器控制功能： | 是 |
| 帶CMOS： | 是 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 64-LQFP |
| 供應商設備封裝： | 64-LQFP |
| 包裝： | 托盤 |
| 其它名稱： | FT2232HL - TRAY |
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Copyright 2012 Future Technology Devices International Limited
37
Document No.: FT_000061
FT2232H DUAL HIGH SPEED USB TO MULTIPURPOSE UART/FIFO IC
Version 2.21
Clearance No.: FTDI#77
4.8 Fast Opto-Isolated Serial Interface Mode Description
Fast Opto-Isolated Serial Interface Mode provides a method of communicating with an external device
over USB using 4 wires that can have opto-isolators in their path, thus providing galvanic isolation
between systems. If either channel A or channel B is enabled in Fast Opto-Isolated Serial mode then the
pins on channel B are switched to the fast serial interface configuration. The I/O interface for fast serial
mode is always on channel B, even if both channels are being used in this mode. An address bit is used
to determine the source or destination channel of the data. It therefore makes sense to always use at
least channel B or both for fast serial mode, but not A own its own.
Fast serial mode is enabled by setting the appropriate bits in the external EEPROM. The fast serial mode
can be held in reset by setting a bit value of 10 using the Set Bit Bang Mode command. While this bit is
set the device is held reset – data can be sent to the device, but it will not be sent out by the device until
the device is enabled again. This is done by sending a bit value of 0 using the set bit mode command.
See application note AN2232L-02, “Bit Mode Functions for the FT2232D” for more details and
examples.
When either Channel B or both Channel A and B are configured in Fast Opto-Isolated Serial Interface
mode the IO timing of the signals used are shown in Figure 4.13 and the timings are
shown in Table
Figure 4.13 Fast Opto-Isolated Serial Interface Signal Waveforms
Name
Minimum
Typical
Maximu
Units
Description
t1
5
ns
FSDO/FSCTS hold time
t2
5
ns
FSDO/FSCTS setup time
t3
5
ns
FSDI hold time
t4
10
ns
FSDI Setup Time
t5
10
ns
FSCLK low
t6
10
ns
FSCLK high
t7
20
ns
FSCLK Period
Table 4.6 Fast Opto-Isolated Serial Interface Signal Timings
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| FT2232HMINIMODULE | 制造商:Future Technology Devices International (FTDI Chip) 功能描述:USB Hi-Speed FT2232H Evaluation Module 制造商:Future Technology Devices International (FTDI Chip) 功能描述:USB to serial/FIFO development module |
| FT2232H-MINI-MODULE | 制造商:Future Technology Devices International (FTDI Chip) 功能描述:IC,EVALUATION MODULE;FT2232H;USB HI-SPEED |
| FT2232HQ | 制造商:Future Technology Devices International (FTDI Chip) 功能描述:USB Hi-Speed to Dual Channel Serial UART/FIFO/JTAG/SPI/I2C IC - QFN-64 |
| FT2232HQ_MINI_ MODULE | 功能描述:界面開發(fā)工具 USB Hi-Speed FT2232H Evaluation Module RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| FT2232HQ-4000 | 制造商:FTDI 制造商全稱:FTDI 功能描述:DUAL HIGH SPEED USB TO MULTIPURPOSE UART/FIFO IC |
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