WMSIC Electronic Components

HGSEMI 24C02/TR 24C02

Model24C02/TR
PackageSOIC-8
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 24C02 / TR
Type
HGSEMI
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
24C02/TR
Electronic Component
1
Package
SOIC-8
Electronic Component
EEPROM
Electronic Component
0.19g
Electronic Component
1
Electronic Component
BM0265070233
Electronic Component
2Kbit
Operating Temperature
40℃~+85℃
Operating Voltage
1.7V~5.5V
Interface Type
I2C
Electronic Component
100
Clock Frequency(fc)
1MHz
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.

24C02/TR 产品概述

24C02/TR 是华冠(HGSEMI)推出的一款高可靠性、低功耗的串行 EEPROM,采用标准 I2C 接口并封装为 SOIC-8,提供 2Kbit(256 字节)非易失性存储解决方案。器件面向工业级与消费类应用,兼顾小容量参数存储、标识数据保存以及配置参数备份等场景,具有宽电源范围和强抗扰能力,便于在多种系统中快速集成。

一、主要参数概览

  • 存储容量:2Kbit(256 字节)
  • 接口类型:I2C(支持高达 1MHz 的总线时钟速率,Fast-mode Plus)
  • 工作电压:1.7V ~ 5.5V(支持单节电池与多电压系统直接接口)
  • 封装形式:SOIC-8
  • 写周期时间(Tw):典型 5 ms(单页写入完成所需时间)
  • 数据保持(TDR):100 年
  • 写周期寿命:1,000,000 次(高耐久)
  • 工作温度范围:-40 ℃ ~ +85 ℃

二、功能特性

  • 硬件写保护:提供独立的写保护引脚(WP),可在系统层面通过物理信号禁止写操作,适合防篡改与只读数据保护要求。
  • 噪声抑制:内置抗噪声电路,提升在电磁干扰较强环境下的数据稳定性与读写可靠性。
  • 多种读写模式:支持字节写入、页写入、当前地址读取、随机读取与顺序读取等标准 I2C EEPROM 操作方式。
  • 低功耗特性:待机与工作电流优化,适合电池供电与低能耗应用。

三、典型操作与接口要点

  • I2C 总线:使用标准的 SDA、SCL 信号线,与主控通过 7 位地址和读/写位进行通信;支持在同一总线上挂接多个器件(地址管理需根据器件管脚或固定地址实现)。
  • 写入策略:建议采用页写(最多 8 字节/页)以提高总线效率;每次写入后需等待写周期完成(Tw≈5 ms),可通过轮询 ACK(器件忙信号)或延时实现。
  • 电源与时序:上电/掉电顺序需注意避免在总线上产生误写,推荐在器件侧与主控侧都配置合适的上拉电阻与去耦电容。
  • I/O 接口保护:在高干扰或长线应用中,建议在 SDA/SCL 线上加上 RC 抑制或共模滤波,并在必要处增加 TVS 或串联阻抗以提高系统抗扰度。

四、可靠性与典型应用场景

凭借 100 年的数据保持与百万次写入寿命,24C02/TR 非常适合以下应用:

  • 工业控制和楼宇自动化:存储校准参数、设备 ID 与配置备份。
  • 智能仪表与电表:保存历史配置、计量校准常数。
  • 消费电子与穿戴设备:固件参数、用户偏好、序列号等。
  • 汽车电子(非高温部位)与医疗设备(符合工作温度范围的场景):用于关键参数的稳定保存。

五、设计要点与使用建议

  • 推荐在电源引脚加 0.1 μF 陶瓷去耦电容以稳定工作电压,减少写入错误。
  • 总线拉高电阻值应根据系统速度与负载选型,Fast-mode Plus(1 MHz)通常需要较小的上拉电阻以满足上升时间要求。
  • 使用硬件 WP 锁定关键区域,在固件升级或调试期间可临时释放写保护。
  • 在高 EMI 环境中,结合板级滤波和屏蔽设计以发挥器件噪声抑制特性。
  • 软件层面实现写入完成检测(ACK polling)比单一延时更稳健,可缩短整体写入延迟并提高可靠性。

总结:HGSEMI 24C02/TR 以其宽电压、低功耗、高可靠性与硬件写保护特点,为需要长期稳定保存少量关键数据的应用提供了经济且易集成的 EEPROM 方案。开发时关注电源完整性、总线布局与写周期管理,可最大化器件性能与系统可靠性。

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