参数资料
型号: FT232BL-REEL
厂商: FTDI, Future Technology Devices International Ltd
文件页数: 5/34页
文件大小: 0K
描述: IC USB FS SERIAL UART 32-LQFP
产品培训模块: USB Introduction
标准包装: 1
系列: USBmadeEZ-UART
通道数: 1,UART
FIFO's: 256 字节
规程: RS232,RS422,RS485
电源电压: 4.35V ~ 5.25V
带自动流量控制功能:
带调制解调器控制功能:
带CMOS:
安装类型: 表面贴装
封装/外壳: 32-LQFP
供应商设备封装: 32-LQFP
包装: 标准包装
产品目录页面: 634 (CN2011-ZH PDF)
其它名称: 768-1009-6
Copyright 2011 Future Technology Devices International Limited
13
Document No.: FT_000329
FT232BL
/BQ USB UART IC Datasheet Version 2.2
Clearance No.: FTDI#
171
EEPROM interface. Though the FT232B will work without the optional EEPROM, an external 93C46
(93C56 or 93C66) EEPROM can be used to customise the USB VID, PID, Serial Number, Product
Description Strings and Power Descriptor value of the FT232B for OEM applications. Other parameters
controlled by the EEPROM include Remote Wake Up, Soft Pull Down on Power-Off and USB 2.0 descriptor
modes. The EEPROM should be a 16 bit wide configuration such as a MicroChip 93LC46B or equivalent
capable of a 1Mb/s clock rate at VCC = 4.35V to 5.25V. The EEPROM is programmable-on board over
USB using a utility available from FTDI’s web site (http://www.ftdichip.com). This allows a blank part to be
soldered onto the PCB and programmed as part of the manufacturing and test process. If no EEPROM is
connected (or the EEPROM is blank), the FT232B will use its built-in default VID, PID Product Description
and Power Descriptor Value. In this case, the device will not have a serial number as part of the USB
descriptor.
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