WMSIC Electronic Components

HGSEMI AT24C128M5/TR AT24C128M5

ModelAT24C128M5/TR
PackageSOT-23-5
BrandHGSEMI
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
HGSEMI AT24C128M5 / TR
Type
SOT-23-5
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
AT24C128M5/TR
Electronic Component
1
Package
SOT-23-5
Electronic Component
EEPROM
Electronic Component
0.08g
Electronic Component
1
Electronic Component
BM0264548219
Electronic Component
128Kbit
Operating Temperature
40℃~+85℃
Operating Voltage
1.8V~5.5V
Interface Type
I2C
Electronic Component
100
Clock Frequency(fc)
400kHz
Electronic Component
Electronic Component

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

AT24C128M5/TR 产品概述

一、产品简介

AT24C128M5/TR 是 HGSEMI(华冠)推出的一款 128Kbit 串行电可擦写可编程只读存储器(EEPROM),采用常见的 I2C 总线接口,最高支持 400kHz 快速模式通信。器件封装为 SOT-23-5,工作电压宽泛(1.8V ~ 5.5V),工作温度范围为 -40℃ 至 +85℃,适用于工业级和消费类电子的非易失性数据存储需求。

二、主要规格与特性

  • 存储容量:128Kbit(16K × 8 或按字节组织)
  • 接口类型:I2C (最高 fc = 400kHz)
  • 写周期时间(Tw):5ms(典型值)
  • 数据保持(TDR):100 年
  • 写周期寿命:1,000,000 次
  • 电源电压:1.8V ~ 5.5V
  • 工作温度:-40℃ ~ +85℃
  • 封装:SOT-23-5
  • 功能特性:
    • 软件写保护(可在软件层面禁止写入)
    • 硬件写保护(额外引脚实现物理写保护)
    • 页写保护功能(对存储页进行保护)
    • 噪声抑制功能(增强通信稳定性与抗干扰能力)

三、典型应用场景

  • 系统配置与参数存储(如设备序列号、校准参数、固件配置)
  • 工业控制器与传感终端的数据记录与备份
  • 消费电子(远程控制、机顶盒、音视频设备)的配置及用户设定保留
  • 物联网设备与低功耗终端的非易失性数据存储

四、设计与使用建议

  • I2C 总线:建议与主控器匹配 400kHz 快速模式使用,线路上须配置合适阻值的上拉电阻,避免总线毛刺引起通信错误。
  • 电源去耦:器件电源引脚旁建议放置 0.1µF 陶瓷去耦电容,以抑制电源噪声并提高写入稳定性。
  • 写入管理:遵循 Tw = 5ms 的写周期间隔,避免在写周期内再次发起写操作;对于大量写入,建议采用批量/页写并进行必要的错峰与限频处理以延长器件寿命。
  • 保护与可靠性:合理利用软件/硬件/页保护功能保护关键数据;对于频繁写入的数据,建议在系统层做磨损均衡或使用环形缓冲策略。
  • 抗干扰:结合器件的噪声抑制特性,合理布局信号线并避开强电流回路,有助于提升通信可靠性。

五、可靠性与品质保证

AT24C128M5/TR 提供长达 100 年的数据保持能力与高达 1,000,000 次的写入耐久度,适配工业环境下长期可靠运行的需求。宽电压(1.8V5.5V)和低温高温稳定性(-40℃+85℃)增强了在复杂供电及环境条件下的适用性。

六、封装与选型提示

SOT-23-5 小型封装适合空间受限的应用场景,便于移动终端与密集 PCB 布局。选型时请确认主控器的 I2C 电压域与本器件兼容,并根据系统读写频率与写入次数估算寿命需求。

七、总结

AT24C128M5/TR 以其高耐久、高数据保持、宽电压与工业级温度范围,结合多种写保护与噪声抑制特性,是实现配置参数存储、校准数据保留及一般非易失性信息保存的可靠选择。合理的系统级设计与写入策略可充分发挥其长期稳定存储的优势。

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