DS28E18

量产

1-Wire®至I2C/SPI桥接芯片，带指令顺序控制

1-Wire至I2C或SPI桥接器件，可由主机微控制器提供寄生供电。

数据手册 (Rev. 1) 产品选型表
产品模型
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产品技术资料帮助

ADI公司所提供的资料均视为准确、可靠。但本公司不为用户在应用过程中侵犯任何专利权或第三方权利承担任何责任。技术指标的修改不再另行通知。本公司既没有含蓄的允许，也不允许借用ADI公司的专利或专利权的名义。本文出现的商标和注册商标所有权分别属于相应的公司。
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产品详情

  • 使用单触点1-Wire接口操作远端I2C或SPI器件
    • 延长I2C/SPI通信距离
    • 将6根线(SPI)或4根线(I2C)减少为2根线
    • 512字节排序控制器，支持附带器件的自主操作
    • 两个可配置GPIO引脚用于附加外设控制
  • 无需外部电源
    • DS28E18由1-Wire寄生供电
    • I2C/SPI外设电源取自1-Wire线路
  • 灵活的1-Wire和I2C/SPI主机工作模式
    • 支持标准速率(11kbps)和过驱动(90kbps) 1-Wire通信
    • I2C从机模式下支持100kHz、400kHz和1MHz速率
    • SPI从机模式下支持最高2.3MHz速率
  • 易于系统集成
  • 小尺寸、2mm x 3mm x 0.75mm、8引脚TDFN封装
  • -40°C至+85°C工作温度范围
  • 2.97V至3.63V工作电压范围
    • DS28E18
    1-Wire®至I2C/SPI桥接芯片，带指令顺序控制
    DS28E1810564.png
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    参考资料

    数据手册 1

    应用笔记 1

    设计笔记 2

    技术文章 2

    了解更多
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    创建新项目

    工具及仿真模型

    软件开发 5

    评估套件

    eval board
    schematic 1
    DS28E18EVKIT

    DS28E18 评估套件

    立即购买 更多内容

    特性和优点

    • Windows 10/8/7驱动
    • 完全兼容USB 2.0规范
    • USB供电，无需外部电源
    • 扩展SPI/I2C外设模块连接器，用于快速搭建SPI/I2C从机原型

    产品详情

    DS28E18评估套件(EV sys)提供专用硬件和软件系统，帮助用户熟悉DS28E18的功能和特性。DS28E18器件为1-Wire® 至I2C/SPI桥接芯片，带有指令顺序控制器。评估系统包括DS28E18评估板、DS7505外设模块电路板、MAX31722外设模块电路板，以及DS9481P-300# USB至1-Wire适配器(用于连接PC)。评估套件兼容Windows®操作系统。

    应用

    • 配件识别与控制
    • 设备配置和监测
    • 检查环境条件
    • 谷物升降机监测
    DS28E18EVKIT
    DS28E18 评估套件
    DS28E18EVKIT: Board Photo

    参考电路

    MAXREFDES9002
    MAXREFDES9002
    MAXREFDES9002 参考设计

    C-source Reference for Operating the DS28E18 from Cortex-M4 GPIO Pins

    查看参考设计详情

    特性和优点

    Features

    • Power and communication to I2C and SPI sensors through two wires
    • 512-byte command sequencer for autonomous operation
    • Up to 10mA at 3.3V sensor power derived from 1-Wire
    • Up to 100m distance with the 1-Wire interface
    • Example C-code demonstrates how to interface to I2C and SPI sensors
    MAXREFDES9000
    MAXREFDES9000
    MAXREFDES9000 参考设计

    Remote I2C and SPI Sensor Operation Using the DS28E18

    查看参考设计详情

    特性和优点

    • Power and communication to I2C and SPI sensors via two wires
    • 512-byte command sequencer for autonomous operation
    • Up to 10mA at 3.3V sensor power derived from 1-Wire
    • Up to 100m distance with the 1-Wire interface
    • Raspberry Pi® computer enables a powerful computing platform for creating an expansive system of sensors
    • Example source code demonstrates how to interface to various types of I2C and SPI sensors
    maxrefdes9004 board
    maxrefdes9004 board
    MAXREFDES9004 参考设计

    C-source Reference for Operating the DS2485 Combined with a DS28E18 from a Cortex-M4 Microcontroller

    查看参考设计详情

    特性和优点

    • Dedicated 1-Wire Master for Convenient 1-Wire Processing
    • Up to 100m Remote Communication with Connected 1-Wire Slave Devices
    • C-Code Demonstrates How to Use the DS2485 in Software Including an Example with the DS28E18

    Designed–Built–Tested

    A simple, cost-efficient, 1-Wire master is demonstrated using the DS2485 for a simple sensor application using the MAX32660 host microcontroller. This reference design includes the following major components: one each of MAX32660 Cortex-M4 microcontroller, DS2485 1-Wire master, DS28E18 1-Wire to I2C/SPI bridge and an I2C temperature sensor module. This document describes the hardware shown above as well as its supplementing software. It provides a detailed, systematic technical guide to set up and understand the MAXREFDES9004 reference design. The system has been built and tested, details of which follow later in this document.
    MAXREFDES9002
    C-source Reference for Operating the DS28E18 from Cortex-M4 GPIO Pins
    MAXREFDES9002
    MAXREFDES9000
    Remote I2C and SPI Sensor Operation Using the DS28E18
    MAXREFDES9000
    MAXREFDES9004
    C-source Reference for Operating the DS2485 Combined with a DS28E18 from a Cortex-M4 Microcontroller
    maxrefdes9004 board

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