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参数资料
| 型号： | FT2232D-REEL |
| 厂商： | FTDI, Future Technology Devices International Ltd |
| 文件页数： | 46/61页 |
| 文件大小： | 0K |
| 描述： | IC USB FS DUAL UART/FIFO 48-LQFP |
| 产品培训模块： | USB Introduction |
| 标准包装： | 1 |
| 系列： | USBmadeEZ-FIFO，FT-X，X-Chip |
| 特点： | USB 至 UART 和（或）FIFO、SPI、I2C、JTAG |
| 通道数： | 2，DUART |
| FIFO's： | 384 字节 |
| 规程： | RS232，RS422，RS485 |
| 电源电压： | 4.35 V ~ 5.25 V |
| 带并行端口： | 是 |
| 带自动流量控制功能： | 是 |
| 带调制解调器控制功能： | 是 |
| 带CMOS： | 是 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-LQFP |
| 供应商设备封装： | 48-LQFP |
| 包装： | 标准包装 |
| 产品目录页面： | 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 |
| 其它名称： | 768-1010-6 |
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Copyright 2010 Future Technology Devices International Limited
50
Document No.: FT_000173
FT2232D DUAL USB TO SERIAL UART
/FIFO IC Datasheet
Version 2.05
Clearance No.: FTDI# 127
Incoming Fast Serial Data
The external device is allowed to send data into the chip if FSCTS is high. On receipt of a Zero start bit on
FSDI, the chip will drop FSCTS on the next positive clock edge. The data from bits 0 to 7 is then clocked
in (LSB first). The next bit determines where the data will be written to. It can go to either channel A or
to channel B. A 0 will send it to channel A, providing channel A is enabled for fast serial mode, otherwise
it will go to channel B. A 1 will send it to channel B, providing channel B is enabled for fast serial mode,
otherwise it will go to channel A. (Either channel A, or channel B, or both must be enabled as fast serial
mode or the circuit is disabled).
Figure 8.16 Fast Opto-Isolated Serial Data Format - Data input to the FT2232D
Notes:-
(i) Start Bit is always 0.
(ii) Data is sent LSB first.
(iii) The destination bit (DEST) indicates which channel the data should go to. A 0 means that it
should go to channel A, a 1 means that it should go to channel B.
(iv) The target device should check CTS is high before it sends data. CTS goes low after data bit
0 (D0) and stays low until the chip can accept more data.
Contention
There is a possibility that contention may occur, where the interface goes from being completely idle to
both sending and receiving at the same clock instance. In this case the chip backs off, and allows the
data from the external device to be received.
Data Format
The data format for either direction is:-
1) Zero Start Bit
2) Data bit 0
3) Data bit 1
4) Data bit 2
5) Data bit 3
6) Data bit 4
7) Data bit 5
8) Data bit 6
9) Data bit 7
10) Source/Destination (0 indicates channel A; 1 indicates channel B)
Reset / Enable
Fast serial mode is enabled by setting the appropriate bits in the external EEPROM. The fast serial mode
can be held in reset by setting a bit value of 10 using the Set Bit Bang Mode command. While this bit is
set the device is held reset - data can be sent to the device, but it will not be sent out by the device until
the device is enabled again. This is done by sending a bit value of 0 using the set bit mode command.
See application note AN2232L-02, “Bit Mode Functions for the FT2232D” for more details and
examples.
相关PDF资料 |
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 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 制造商全称:FTDI 功能描述:DUAL HIGH SPEED USB TO MULTIPURPOSE UART |
| FT2232H MINI MODULE | 功能描述:界面开发工具 USB Hi-Speed FT2232H Evaluation Module RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| FT2232H_10 | 制造商:FTDI 制造商全称:FTDI 功能描述:DUAL HIGH SPEED USB TO MULTIPURPOSE UART/FIFO IC |
| FT2232H_12 | 制造商:FTDI 制造商全称:FTDI 功能描述:Dual High Speed USB to Multipurpose UART/FIFO IC |
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