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參數(shù)資料
型號(hào): FT2232D-REEL
廠商: FTDI, Future Technology Devices International Ltd
文件頁(yè)數(shù): 27/61頁(yè)
文件大?。?/td> 0K
描述: IC USB FS DUAL UART/FIFO 48-LQFP
產(chǎn)品培訓(xùn)模塊: USB Introduction
標(biāo)準(zhǔn)包裝: 1
系列: USBmadeEZ-FIFO,F(xiàn)T-X,X-Chip
特點(diǎn): USB 至 UART 和(或)FIFO、SPI、I2C、JTAG
通道數(shù): 2,DUART
FIFO's: 384 字節(jié)
規(guī)程: RS232,RS422,RS485
電源電壓: 4.35 V ~ 5.25 V
帶并行端口:
帶自動(dòng)流量控制功能:
帶調(diào)制解調(diào)器控制功能:
帶CMOS:
安裝類型: 表面貼裝
封裝/外殼: 48-LQFP
供應(yīng)商設(shè)備封裝: 48-LQFP
包裝: 標(biāo)準(zhǔn)包裝
產(chǎn)品目錄頁(yè)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
其它名稱: 768-1010-6
Copyright 2010 Future Technology Devices International Limited
33
Document No.: FT_000173
FT2232D DUAL USB TO SERIAL UART
/FIFO IC Datasheet
Version 2.05
Clearance No.: FTDI# 127
Figure 8.2 USB <=> Dual Port RS422 Converter Configuration
Figure 8.2 illustrates how to connect the UART interfaces of the FT2232D to two TTL - RS422 Level
Converter I.C.s to make a USB to dual port RS422 converter. There are many such level converter
devices available - this example uses two Sipex SP491 devices which have enables on both their
transmitters and receivers. Because the transmitter enables are active high, they are connected to
the SLEEP# pins.
The receiver enables are active low and are both connected to the PWREN# pin. This ensures that
both the transmitters and receivers are enabled when the device is active, and disabled when the
device is in USB suspend mode. If the design is USB BUS powered, it may be necessary to use a P-
Channel logic level MOSFET (controlled by PWREN#) in the VCC line of the SP491 devices to ensure
that the USB standby current of 500μA is met. The SP491 is good for sending and receiving data at
a rate of up to 5M Baud - in this case the maximum rate is limited to 3M Baud by the FT2232D.
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