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)： 21/24頁(yè)
文件大?。?/td> 812K
代理商： FT232BM
DS232B Version 1.1 Future Technology Devices Intl. Ltd. 2002
Page 21 of 24
FT232BM USB UART ( USB - Serial) I.C.
7.5 LED Interface
Figure 13
Dual LED Configuration
Figure 14
Single LED Configuration
FT232BM
TXLED#
RXLED#
11
12
VCCIO
220R
220R
TX
RX
FT232BM
TXLED#
RXLED#
11
12
VCCIO
220R
LED
The FT232BM 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 13 shows a configuration using two individual LED’s – one for
transmitted data the other for received data. In Figure 14, the transmit and receive LED indicators are wire-or’d
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 13
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.
相關(guān)PDF資料
PDF描述
FT232R Incorporating Clock Generator Output and FTDIChip-ID Security Dongle
FT232RL Incorporating Clock Generator Output and FTDIChip-ID Security Dongle
FT232RQ Incorporating Clock Generator Output and FTDIChip-ID Security Dongle
FT500AH-80 Phase Control SCR 320 Amperes Avg 3000-4000 Volts
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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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