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| 型號： | FT232BQ-REEL |
| 廠商： | FTDI, Future Technology Devices International Ltd |
| 文件頁數(shù)： | 15/34頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC NEW DESIGNS REFER TO FT232RQ |
| 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： | 4.35 V ~ 5.25 V |
| 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： | 32-WFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 32-QFN 裸露焊盤（5x5） |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 其它名稱： | 768-1067-6 |
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Copyright 2011 Future Technology Devices International Limited
22
Document No.: FT_000329
FT232BL
/BQ USB UART IC Datasheet Version 2.2
Clearance No.: FTDI#
171
7 Device Configuration Examples
The following sections illustrate device configurations for the FT245BM.
7.1 Oscillator Configurations
Figure 7.1 3 Pin Ceramic Resonator Configuration
Figure 7.2 Crystal or 2 Pin
Ceramic Resonator Configuration
Figure 7.1 illustrates how to use the FT232B with a 3-Pin Ceramic Resonator. A suitable part would be a
ceramic resonator from Murata’s CERALOCK range or equivalent. 3-Pin ceramic resonators have the load
capacitors built into the resonator so no external loading capacitors are required. This makes for an
economical configuration. The accuracy of this Murata ceramic resonator is +/- 0.1% and it is specifically
designed for USB full speed applications. A 1 MegaOhm loading resistor across XTIN and XTOUT is
recommended in order to guarantee this level of accuracy.
Figure 7.2 illustrates how to use the FT232B with a 6MHz Crystal or 2-Pin Ceramic Resonator. These
devices do not have in-built loading capacitors. They must be added between XTIN, XTOUT and GND as
shown. A value of 27pF is shown as the capacitor in the example – this will be good for many crystals and
some resonators but do select the value based on the manufacturer’s recommendations wherever
possible. If using a crystal, use a parallel cut type. If using a resonator, see the previous note on
frequency accuracy.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| 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 |
| FT232HL-REEL | 功能描述:USB 接口集成電路 USB HS to UART/FIFO SPI/JTAG/I2C LQFP-48 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-TRAY | 功能描述:USB 接口集成電路 USB HS to UART/FIFO SPI/JTAG/I2C LQFP-48 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 |
| FT232HQ-REEL | 功能描述:USB 接口集成電路 USB HS to UART/FIFO SPI/JTAG/I2C QFN-48 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 |
| FT232HQ-TRAY | 功能描述:USB 接口集成電路 USB HS to UART/FIFO SPI/JTAG/I2C QFN-48 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 |
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