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| 型號： | FT2232HQ-TRAY |
| 廠商： | Future Technology Devices International Ltd |
| 元件分類： | 總線控制器 |
| 中文描述： | UNIVERSAL SERIAL BUS CONTROLLER, PQCC64 |
| 封裝： | LEAD FREE, QFN-64 |
| 文件頁數(shù)： | 29/63頁 |
| 文件大?。?/td> | 1598K |
| 代理商： | FT2232HQ-TRAY |
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Copyright 2010 Future Technology Devices International Limited
35
Document No.: FT_000061
FT2232H DUAL HIGH SPEED USB TO MULTIPURPOSE UART/FIFO IC
Datasheet Version 2.10
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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| FT2232L | 功能描述:UART 接口集成電路 Obsolete See FT2232D-REEL RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
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| FT22L | 功能描述:OVEN FOOD PROBE RoHS:是 類別:測試設(shè)備 >> 測試引線 - 熱電偶，溫度探頭 系列:FT 標(biāo)準(zhǔn)包裝:1 系列:6543 類型:J 型熱電偶 使用:液體，半固體 尖端 - 類型:防浸漬 / 穿透式，圓頭 插頭類型:超微型（熱電偶插頭） 探針溫度范圍:-40 ~ 2000°F（-40 ~ 1093°C） 線纜長度:- 線纜絕緣:- 插頭顏色:黑 探針長度:12.000"（304.80mm） 探針材料:- |
| FT230A | 制造商:Black Box Corporation 功能描述:HAND STRIPPER |
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