WMSIC Electronic Components

ADI/LINEAR DS28E05R+T DS28E05R

ModelDS28E05R+T
PackageSOT-23-3
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
ADI(Analog Devices) / LINEAR DS28E05R+T
Type
ADI/LINEAR
Minimum package
3000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ADI(Analog Devices) / LINEAR
Electronic Component
DS28E05R+T
Electronic Component
1
Package
SOT-23-3
Electronic Component
EEPROM
Electronic Component
0.06g
Electronic Component
1
Electronic Component
BM0258766863
Electronic Component
896bit
Operating Temperature
40℃~+85℃
Operating Voltage
1.71V~3.63V
Interface Type
Bus
Electronic Component
1
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.

DS28E05R+T 产品概述

一 产品简介

DS28E05R+T 是一款基于单总线(1-Wire®)的非易失性 EEPROM 存储器,容量为 896 bit(112 字节),采用小型 SOT-23-3 封装,面向对体积、功耗和成本敏感的嵌入式系统与物联网终端。器件支持 1.71V 至 3.63V 宽工作电压,工作温度范围为 -40℃ 到 +85℃,适合多种工业与消费类应用场景。该器件由 ADI(前 Linear/Maxim 系列)推出,兼顾可靠性与易集成性。

二 主要规格

  • 接口类型:单总线(1-Wire®)
  • 存储容量:896 bit(112 字节)
  • 工作电压:1.71 V ~ 3.63 V
  • 数据保留(TDR):10 年
  • 写周期寿命:约 1,000 次
  • 工作温度:-40℃ ~ +85℃
  • 总线时序:2 µs(支持 1-Wire® 标准时序)
  • 封装:SOT-23-3,便于 PCB 芯片级布局与自动化贴装

三 关键特性与优势

  • 小容量、低成本:896 bit 的 EEPROM 容量适合存放序列号、校准系数、设备配置、运行参数等少量但重要的数据,成本低、实现简单。
  • 单总线接口:1-Wire® 总线仅需一线(外加参考地),节省 PCB 引脚和布线资源,方便与 MCU、控制器共享接口。
  • 低压工作:最低 1.71 V 即可可靠工作,适配多种低压电源或电池供电系统,利于便携设备与能源受限场景。
  • 宽温和长期可靠性:-40℃ 至 +85℃ 工况覆盖常见工业级温度需求;10 年数据保持期满足长期存储要求,写入耐久达 1,000 次,符合大多数配置或设置类写入频次。
  • 小巧封装:SOT-23-3 占板面积小,适合空间受限的嵌入式与消费类产品。

四 典型应用场景

  • 产品序列号与身份认证:在出厂时写入设备唯一编号或认证信息,用于生产追溯、维修和生命周期管理。
  • 校准参数与设备配置:存储传感器校准系数、出厂配置、阈值参数等,设备上电即可读取,无需重新校准。
  • 低功耗/电池供电设备:如可穿戴设备、小型传感器节点、便携仪器,利用低压工作与单线总线简化硬件设计。
  • 维修与维护记录:记录固件版本、维护时间戳或错误统计信息,便于售后与故障分析。
  • 物联网终端与智能模块:作为简单的非易失性存储解决方案,配合主控实现设备配置管理或身份标识。

五 设计与使用注意事项

  • 总线拉高电阻:1-Wire® 总线需要外接合适的上拉电阻以建立数据线空闲电平,推荐值视总线长度与系统电容而定,一般为 4.7kΩ~10kΩ。上拉阻值过大或过小都会影响通信可靠性与功耗。
  • 电源与地的旁路:为保证读写稳定,建议在 VCC 与 GND 之间靠近器件放置 0.1 µF 的陶瓷旁路电容,抑制电源噪声与瞬态脉冲。
  • 写入策略:考虑器件的写周期寿命(1,000 次),应将频繁变化的数据放在易失性内存或通过写放大/缓存策略减少 EEPROM 写入次数,例如累积改动后批量写入或使用循环计数器减少擦写。
  • 数据完整性:建议在数据结构中加入校验码或 CRC,以便上电或通信失败时快速判定数据完整性。
  • 温度与长期保存:尽管器件支持工业温度范围并保证 10 年数据保持,若长期储存或极端温度环境使用,应结合系统层面做可靠性评估并规划定期验证。
  • PCB 布局:SOT-23-3 封装焊盘应遵照厂商推荐的 PCB 足迹,保证焊接品质;数据线布线尽量避开强干扰信号线,必要时增加滤波或差分措施。

六 封装与采购建议

  • 封装形式:SOT-23-3,适合自动化贴装与狭小空间应用。
  • 采购提示:在选型时确认具体管脚排列与厂商标识(带“R+T” 后缀可能表示带卷装/托盘或温度/等级标识),并参考器件的最新数据手册以获取完整的电气特性和时序图。
  • 替代与兼容:若需要更大容量或更高耐久性的非易失性存储,可评估其他 EEPROM/FRAM/Serial Flash 方案;选型时应综合接口数量、供电电压、写入寿命与封装尺寸。

总结:DS28E05R+T 以其单总线接口、小巧封装、低压工作和长期数据保持特点,为需要少量非易失性存储的嵌入式与物联网应用提供了简单、经济且可靠的解决方案。合理的电路设计与写入管理可进一步发挥其在产品标识、配置存储与校准数据保存方面的价值。

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