WMSIC Electronic Components

ADI/LINEAR DS2411R+T&R DS2411R

ModelDS2411R+T&R
PackageSOT-23
BrandADI/LINEAR
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
ADI(Analog Devices) / LINEAR DS2411R+T&R
Type
ADI/LINEAR
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ADI(Analog Devices) / LINEAR
Electronic Component
DS2411R+T&R
Electronic Component
1
Package
SOT-23
Electronic Component
Authentication / Encryption IC
Electronic Component
0.033g
Electronic Component
1
Features
ID
Electronic Component
BM0258722435
Operating Temperature
40℃~+85℃
Operating Voltage
1.5V~5.25V
Current
1uA
Interface Type
1-Wire
Electronic Component
Electronic Component
Electronic Component
3000

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

DS2411R+T&R 产品概述

一、产品简介

DS2411R+T&R 是一款基于 1-Wire 总线的硅质唯一序列号器件,由 Maxim/Dallas 系列产品(现由 ADI/Linear 代理)生产。器件通过单总线 IO(DQ)向主机提供不可重复的 64 位硅序列号(Silicon Serial Number),并以 VCC 供电工作(非寄生供电)。器件封装为 SOT-23,适合空间受限的系统板载识别与资产管理应用。典型应用包括设备唯一标识、生产追溯、固件/配置绑定、资产管理与系统装配校验等。

二、主要特性

  • 接口类型:1-Wire 总线(单数据线 + 地)
  • 唯一 ID:64 位 ROM 代码(8 位家族码 + 48 位序列号 + 8 位 CRC)
  • 供电方式:VCC 输入,工作电压范围 1.5 V ~ 5.25 V
  • 待机电流:典型值约 1 μA(需参照具体器件电流曲线)
  • 工作温度:-40 ℃ ~ +85 ℃
  • 封装:SOT-23(3 引脚)
  • 封装/出货:R+T&R(卷带托盘,适合自动贴片与量产)
  • 数据完整性:内置 Dallas/Maxim CRC-8 校验用于 ROM 读出校验

三、引脚与封装

DS2411 在 SOT-23 小型三引脚封装中,常见引脚功能为:

  • VCC:器件电源输入(1.5 V ~ 5.25 V)
  • DQ:1-Wire 双向数据线(与主机共用单线进行复位/存在检测与 ROM 读写命令)
  • GND:接地

(具体引脚排列请参照厂商的封装图与数据手册以确认封装方向与引脚编号。)

四、1-Wire 总线使用要点

  • 总线结构:1-Wire 使用单条数据线进行双向通信,通信时序包含复位脉冲、存在应答与字节级读写。主控器需遵循标准 1-Wire 时序。
  • 上拉电阻:数据线上通常需要一个外部上拉电阻以维持空闲高电平。典型值 4.7 kΩ(短线、低噪声环境),长线或多节点时可适当减小或采用有源上拉。
  • 读 ROM:DS2411 支持标准 ROM 命令集,可通过 Read ROM(0x33)命令直接读取 64 位 ID(仅在单从机总线情况下),在多从机总线时使用 Search/MATCH ROM 等机制。
  • 电平兼容:工作电压覆盖 1.5 V~5.25 V,但当主机电压与器件 VCC 不一致时,应采用合适的电平转换或确保两端共地并在规格范围内工作。
  • 供电注意:DS2411 使用 VCC 正常供电,不依赖 1-Wire 总线的寄生供电。上电顺序与稳压稳定性会影响通信可靠性,建议在 VCC 稳定后再进行总线操作。

五、典型应用场景

  • 嵌入式设备唯一标识(设备出厂唯一 ID,用于序列号管理)
  • 设备装配校验与防错(装配线自动识别板卡/模块)
  • 资产管理与物流追踪(标签化硬件)
  • 固件/配置绑定(将软件许可或配置与硬件 ID 绑定)
  • 网络设备的唯一 MAC 编号来源(作为校验或记录用途)

六、设计与选型建议

  • 若需要强认证或防篡改功能,DS2411 提供的是不可复制的唯一 ID,但本身不具备加密认证能力;对于安全关键场景,应搭配带有加密/认证功能的安全元件使用。
  • 布线与干扰:1-Wire 总线对噪声敏感,建议短线、屏蔽或适当的滤波与去耦。总线节点数目与线长会影响上拉电阻选择与信号完整性。
  • 封装与贴装:SOT-23 封装便于表面贴装与自动化生产;选择 R+T&R 卷带出货便于贴片机进料。
  • 验证流程:生产过程可通过自动化编程器读取每片器件的 64 位序列号并写入数据库,作为出厂追溯与质保依据。

总结:DS2411R+T&R 是一款简单、低功耗、易集成的硅序列号器件,适合在需要唯一硬件标识但不要求复杂密码学功能的场景中使用。有关完整电气参数、时序图、典型应用电路和评估方法,请参阅官方数据手册以确保设计符合规格与可靠性要求。

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