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參數資料
| 型號： | 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 |
| 文件頁數： | 21/24頁 |
| 文件大小： | 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PDF資料 |
PDF描述 |
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| 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 |
| FT500AN-60 | PHASE CONTROL SCR |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 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 產品:USB 2.0 數據速率: 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 產品:USB 2.0 數據速率: 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 產品:USB 2.0 數據速率: 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 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
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