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參數(shù)資料
| 型號(hào)： | FT232BL-REEL |
| 廠商： | FTDI, Future Technology Devices International Ltd |
| 文件頁數(shù)： | 20/34頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC USB FS SERIAL UART 32-LQFP |
| 產(chǎn)品培訓(xùn)模塊： | USB Introduction |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | USBmadeEZ-UART |
| 通道數(shù)： | 1，UART |
| FIFO's： | 256 字節(jié) |
| 規(guī)程： | RS232，RS422，RS485 |
| 電源電壓： | 4.35V ~ 5.25V |
| 帶自動(dòng)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： | 32-LQFP |
| 供應(yīng)商設(shè)備封裝： | 32-LQFP |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 產(chǎn)品目錄頁面： | 634 (CN2011-ZH PDF) |
| 其它名稱： | 768-1009-6 |
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Copyright 2011 Future Technology Devices International Limited
27
Document No.: FT_000329
FT232BL
/BQ USB UART IC Datasheet Version 2.2
Clearance No.: FTDI#
171
9 LED Interface Configuration
Figure 9.1 Dual LED Configuration
Figure 9.2 Single LED
Configuration
The FT232B has two IO pins dedicated to controlling LED status indicators, one for transmitted data the
other for received data. When data is being transmitted / received the respective pins drive from tri-state
to low in order to provide indication on the LEDs of data transfer. A digital one-shot timer is used so that
even a small percentage of data transfer is visible to the end user.
Figure 9.1 shows a configuration using two individual LED’s – one for transmitted data the other for
received data.
In figure 9.2, transmit and receive LED indicators are wire-OR’ed together to give a single LED indicator
which indicates any transmit or receive data activity.
Another possibility (not shown here) is to use a 3 pin common anode tri-color LED based on the circuit in
Figure 9.2 to have a single LED that can display activity in a variety of colors depending on the ratio of
transmit activity compared to receive activity.
Note that the LED’s are connected to VCCIO.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FT232BL-TRAY | 制造商:Future Technology Devices International (FTDI Chip) 功能描述:USB-to-UART 1-CH 128Byte FIFO 5V 32-Pin LQFP Tray |
| FT232BM | 功能描述:UART 接口集成電路 Obsolete FT232BL 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 |
| FT232BQ | 制造商:FTDI 制造商全稱:FTDI 功能描述:USB UART ( USB - Serial) I.C. |
| FT232BQ-REEL | 功能描述:USB 接口集成電路 USB to Serial UART IC QFN-32 RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| FT232HL | 制造商:FTDI 制造商全稱:FTDI 功能描述:FT232H Single Channel Hi-Speed USB to Multipurpose UART/FIFO IC |
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