參數(shù)資料
型號(hào)： FT232BM
廠商： Electronic Theatre Controls, Inc.
英文描述： Generation of FTDI’s Popular USB UART I.C.
中文描述： 在FTDI的流行的USB UART的新一代集成電路
文件頁(yè)數(shù)： 13/24頁(yè)
文件大小： 812K
代理商： FT232BM
DS232B Version 1.1 Future Technology Devices Intl. Ltd. 2002
Page 13 of 24
FT232BM USB UART ( USB - Serial) I.C.
7.0 Device Configuration Examples
7.1 Oscillator Configurations
Figure 4
3 Pin Ceramic Resonator
Configuration
Figure 5
Crystal or 2-Pin Ceramic Resonator
Configuration
XTIN
XTOUT
27
28
FT232BM
3-Pin Resonator
6MHz
XTIN
XTOUT
27
28
FT232BM
2 - Pin Resonator
or Crystal
6MHz
27pF
27pF
Figure 4 illustrates how to use the FT232BM with
a 3-Pin Ceramic Resonator such as Murata Part #
CSTLS6M00G53 or equivalent. 3-Pin resonators have
the load capacitors built into the resonator so no external
loading capacitors are required. This makes for an
economical configuration. Though the typical accuracy of
such a resonator is +/- 0.5% and is technically out-with
the USB specification, it has been calculated that using
such a device will work satisfactorily in practice with the
FT232BM design.
Figure 5 illustrates how to use the FT232BM with a 6MHz
Crystal or 2-Pin Ceramic Resonator. In this case, these
devices do not have in-built loading capacitors so these
have to 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
manufacturers 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)
參數(shù)描述
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
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
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