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參數(shù)資料
| 型號： | FT2232D-REEL |
| 廠商： | FTDI, Future Technology Devices International Ltd |
| 文件頁數(shù)： | 14/61頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC USB FS DUAL UART/FIFO 48-LQFP |
| 產(chǎn)品培訓模塊： | USB Introduction |
| 標準包裝： | 1 |
| 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： | 384 字節(jié) |
| 規(guī)程： | RS232，RS422，RS485 |
| 電源電壓： | 4.35 V ~ 5.25 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： | 48-LQFP |
| 供應商設備封裝： | 48-LQFP |
| 包裝： | 標準包裝 |
| 產(chǎn)品目錄頁面： | 634 (CN2011-ZH PDF) |
| 配用： | 768-1030-ND - MOD USB HS FT2232H EVAL 813-1009-ND - MODULE USB-TO-FPGA TOOL W/MANUAL 813-1001-ND - MODULE USB ADAPTR FOR FT2232D LP 813-1000-ND - MODULE USB ADAPTER FOR FT2232D |
| 其它名稱： | 768-1010-6 |
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Copyright 2010 Future Technology Devices International Limited
21
Document No.: FT_000173
FT2232D DUAL USB TO SERIAL UART
/FIFO IC Datasheet
Version 2.05
Clearance No.: FTDI# 127
6 USB Power Configurations
The following sections illustrate possible USB power configurations for the FT2232D.
6.0 USB Bus Powered Configuration
Figure 6.1 Bus Powered Configuration
Figure 6.1 illustrates the FT2232D in a typical USB bus powered configuration. A USB Bus
Powered device gets its power from the USB bus. Basic rules for USB Bus power devices are as
follows:-
a) On plug-in, the device must draw no more than 100mA
b) On USB Suspend the device must draw no more than 500μA.
c) A High Power USB Bus Powered Device (one that draws more than 100mA) should use the
PWREN# pin to keep the current below 100mA on plug-in and 500μA on USB suspend.
d) A device that consumes more than 100mA cannot be plugged into a USB Bus Powered Hub
e) No device can draw more that 500mA from the USB Bus.
The power descriptor in the EEPROM should be programmed to match the current draw required by the
device. A Ferrite Bead is connected in series with USB power to prevent noise from the device and
associated circuitry (EMI) being radiated down the USB cable to the Host. The value of the Ferrite Bead
depends on the total current required by the circuit - a suitable range of Ferrite Beads is available from
Steward (www.steward.com) for example Steward Part # MI0805K400R-00 also available from DigiKey,
Part # 240-1035-1.
相關PDF資料 |
PDF描述 |
|---|---|
| FT2232HQ-REEL | IC USB HS DUAL UART/FIFO 64-QFN |
| FT232BL-REEL | IC USB FS SERIAL UART 32-LQFP |
| FT232HL-REEL | IC HS USB TO UART/FIFO 48LQFP |
| FT232RL-REEL | IC USB FS SERIAL UART 28-SSOP |
| FT245BL-REEL | IC USB FS PARALLEL FIFO 32-LQFP |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| FT2232D-TRAY | 制造商:Future Technology Devices International (FTDI Chip) 功能描述:DUAL USB TO SERIAL UART/FIFO IC |
| FT2232H | 制造商:FTDI 制造商全稱:FTDI 功能描述:DUAL HIGH SPEED USB TO MULTIPURPOSE UART |
| FT2232H 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 |
| FT2232H_10 | 制造商:FTDI 制造商全稱:FTDI 功能描述:DUAL HIGH SPEED USB TO MULTIPURPOSE UART/FIFO IC |
| FT2232H_12 | 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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