The FT232H is the single channel version, the FT2232H is the dual-channel, and there is also anFT4232H quad channel part.

While these are all logically the same, with different numbers of UART channels, there are some performance and functional differences between them.

  • The FT232H has merely 1 kB of ring buffer, which can be overwhelmed if running at a high baud rate, and with a slow offtake by the host device. The FT2232H has 4 kB ring buffer per channel, much better in avoiding buffer overruns.

  • Another difference, which may not be relevant to the task at hand, is that the FT2232H supports 16 GPIO pins via its internal 8051 emulation. There have been useful applications designed to leverage these GPIOs, but you may not need this.

FT232H - Hi-Speed Single Channel USB UART/FIFO IC

Operating at USB Hi-Speed 480Mbps rate, this fast single channel bridge chip features

either a flexible serial interface or parallel FIFO interface,

with data transfer speeds up to 40Mbytes/s.

Using a serial EEPROM interface, this device can be configured for a wide variety of asynchronous and synchronous serial standards,

such as JTAG, SPI, I2C and UART as well as synchronous and asynchronous parallel FIFO interfaces.

In addition, this device features the new synchronous, half-duplex FT1248 bus,

which allows an engineer to trade off bandwidth for pin count using 1, 2, 4, or 8 data lines at up to 30Mbytes/s.

The I/O structure is 3.3V with built-in tolerance for 5V, allowing the designer maximum flexibility when interfacing with FPGAs.

On-board voltage regulation provides 3.3V and 1.8V supplies from a 5V source, as well as a power-on-reset function.

FTDI provides royalty-free virtual com port and D2XX drivers for Microsoft Windows (XP – Windows7),

Apple Mac OSX, and Linux. This 48 pin device is available in either LQFP or QFN packaging, and is ROHS compliant.

The FT2232H is FTDI’s 5th generation of USB devices. 

The FT2232H is a USB 2.0 Hi-Speed (480Mb/s) to UART/FIFO IC.

It has the capability of being configured in a variety of industry standard serial or parallel interfaces.

Building on the innovative features of the FT2232,

the FT2232H has two multi-protocol synchronous serial engines (MPSSEs)

which allow for communication using JTAG, I2C and SPI on two channels simultaneously.

The FT2232H is available in Pb-free (RoHS compliant) 64-pin LQFP and QFN packages.

The FT4232H is FTDI’s 5th generation of USB devices. 

The FT4232H is a USB 2.0 Hi-Speed (480Mb/s) to UART IC.

It has the capability of being configured in a variety of industry standard serial or parallel interfaces.

The FT4232H features 4 UARTs. Two of these have an option to independently configure an MPSSE engine,

this allows the FT4232H to operate as two UART/Bit-Bang ports plus two MPSSE engines used

to emulate JTAG, SPI, I2C, Bit-bang or other synchronous serial modes.

The FT4232H is available in Pb-free (RoHS compliant) 64-pin LQFP and QFN packages.

FT232H FT2232H FT4232H的更多相关文章

  1. Linux/drivers/usb/serial/ftdi_sio.c

    Linux/drivers/usb/serial/ftdi_sio.h /* 2 * Driver definitions for the FTDI USB Single Port Serial Co ...

  2. USB2.0学习笔记连载(一):CY7C68013特性简介

    上一篇博客已经给出了整个视频板卡架构,那么对于USB接口部分需要着重理解和学习. 对于目前来说,若是利用FPGA去模拟USB2.0内核,难度还是挺大的,整个状态的收发都不好控制.现在目前都在使用桥接芯 ...

  3. [经验分享] 最近调试FT232H遇到的坑

    cnblogs.com Yeats叶子 原创,转载请注明原始地址 - http://www.cnblogs.com/xiedidan/p/ft232h-poc.html Abstract FT232H ...

  4. [原创]iFPGA-USB2.0 FT2232H USB & UART开发板使用说明

    iFPGA-USB2.0 FT2232H USB & UART 开发板使用说明 基本特性: 沉金工艺: 速度达到30MB/S以上: FT2232H USB2.0免固件开发: FPGA-USB2 ...

  5. [原创]iFPGA-Cable FT2232H JTAG & UART调试器

    iFPGA-Cable FT2232H JTAG & UART调试器 [特性] 采用FT2232H,双通道接口: 支持UART: 支持JTAG,Digilent SMT-1,TCK最大时钟频率 ...

  6. FT232H USB转串口,I2C,JTAG高速芯片

    随着FT232H USB2.0高速芯片的发布,英商飞特蒂亚公司(FTDI)进一步巩固了其在USB接口集成电路产品的地位.此款多功能的单通道USB转UART/FIFO接口设备可通过EEPROM配置为各种 ...

  7. [原创]iFPGA-Cable FT2232H Xilinx / Altera / Lattice 三合一JTAG & UART调试器-详细使用说明

    iFPGA-Cable调试器使用说明 全文分为6部分: 第0部分:实物.连线及其驱动安装说明 第1部分:Xilinx JTAG 第2部分:UART 第3部分:Altera JTAG 第4部分:Latt ...

  8. 设备管理 USB ID

    发现个USB ID站点,对于做设备管理识别的小伙伴特别实用 http://www.linux-usb.org/usb.ids 附录: # # List of USB ID's # # Maintain ...

  9. FTDI通用转USB芯片简述

    FTDI公司的FT2232系列芯片可实现USB与异步串行口RS232/RS485.同步串行总线IIC/SPI/JTAG相互通信,市场占有率,使用普遍. FTDI芯片有两种类型的驱动:virtual C ...

随机推荐

  1. centos6.5下编译安装mariadb-10.0.20

    源码编译安装mariadb-10.0.20.tar.gz 一.安装cmake编译工具 跨平台编译器 # yum install -y gcc* # yum install -y cmake 解决依赖关 ...

  2. MonkeyRunner之MonkeyRecorder录制回放脚本(亲测可正常运行)

    MonkeyRunner可以录制和回放脚本 前置条件: 电脑连接手机,输入adb devices 看看返回是否手机设备列表(我是真机,模拟器也可以) 配置好安卓sdk和Python环境 step: 1 ...

  3. PS设计漂亮网站主页图片的实例教程

    制作一个好的网页,需要花费大量的时间,包含的内容也是非常多的,其中有按钮.横幅.图标及其它素材等.制作的时候先规划好大致的框架,然后由上至下慢慢细化各部分的内容,注意好整体搭配.最终效果 一.在我们打 ...

  4. AlexNet

    AlexNet学习笔记 目录 AlexNet整体结构 CNN 全连接 TensorFlow实现 AlexNet是2012年ImageNet竞赛冠军获得者Hinton和他的学生Alex Krizhevs ...

  5. 一个tomcat上部署多个项目,并通过不同端口号访问不同的项目

    原文:http://www.cnblogs.com/kismetv/p/7228274.html#title3-1 现在以部署两个项目为例: 第一步:修改tomcat下的server.xml文件 配置 ...

  6. iOS中按钮点击事件处理方式

    写在前面 在iOS开发中,时常会用到按钮,通过按钮的点击来完成界面的跳转等功能.按钮事件的实现方式有多种,其中 较为常用的是目标-动作对模式.但这种方式使得view与controller之间的耦合程度 ...

  7. python 全栈开发,Day58(bootstrap组件,bootstrap JavaScript 插件,后台模板,图表插件,jQuery插件库,Animate.css,swiper,运行vue项目)

    一.bootstrap组件 无数可复用的组件,包括字体图标.下拉菜单.导航.警告框.弹出框等更多功能. 组件和插件的区别? 插件:一个功能,比如js文件 组件:html css js 组件包含插件 面 ...

  8. 方法名太多,使用方法的重载(overload)来解决

    package chapter04; /* 问题:方法名太多了,不容易记忆,有时会出错 使用方法的重载(overload)来解决 */public class C09_Method { public ...

  9. jQuery.TreeView插件实现树状导航(十三)

    一:jQuery.TreeView插件简介 该插件的特点: 1.支持静态的树,即一次性将全部数据加载到客户端. 2.支持异步树,即一次只加载一级或若干级节点,子节点可以异步加载数据. 3.支持节点级联 ...

  10. C#4.0特性

    C# 4.0的主要主题是动态编程.对象的意义变得越来越“动态”,它们的结构和行为无法通过静态类型来捕获,或者至少编译器在编译程序时无法得知对象的结构和行为. a. 来自动态编程语言——如Python或 ...