WMSIC Electronic Components

LX 24C02A(LX) 24C02A

Model24C02A(LX)
PackageSOP-8
BrandLX
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
LX 24C02A(LX)
Type
LX
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LX
Electronic Component
24C02A(LX)
Electronic Component
1
Package
SOP-8
Electronic Component
EEPROM
Electronic Component
0.167g
Electronic Component
1
Electronic Component
BM0226168352
Electronic Component
2Kbit
Operating Temperature
40℃~+85℃
Operating Voltage
1.8V~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.

24C02A(LX) EEPROM 产品概述

一、产品简介

24C02A(LX) 是灵星芯微(LX)推出的一款高可靠性串行 EEPROM,容量为 2Kbit(256 字节),采用标准 SOP-8 封装。器件支持 I2C 总线接口,工作电压范围宽(1.8V ~ 5.5V),在-40℃至+85℃工业温度范围内稳定工作,适合嵌入式系统、消费电子和工业控制等对非易失性存储有长期数据保存需求的场景。

二、主要参数

  • 存储容量:2Kbit(256 字节)
  • 时钟频率(fc):最高 1 MHz(I2C 快速/高速模式兼容)
  • 工作电压:1.8 V ~ 5.5 V
  • 工作温度:-40 ℃ ~ +85 ℃
  • 数据保留(TDR):100 年
  • 写周期寿命:1,000,000 次(典型)
  • 单次写周期时间(Tw):约 5 ms
  • 接口类型:I2C(串行双线)
  • 封装:SOP-8
  • 品牌:LX(灵星芯微)

三、功能特点

  • 兼容 I2C 标准协议,集成器件地址线(便于多器件共存)
  • 宽电压范围支持 1.8V 低功耗系统以及 5V 传统系统,便于系统兼容设计
  • 高耐久写入次数与极长的数据保持时间,满足关键参数、校准值及配置数据长期保存要求
  • SOP-8 标准封装,便于 PCB 贴片生产与替换

四、接口与使用要点

  • 使用两线 I2C 总线(SDA、SCL),需在上拉到 VCC 的情况下工作,常用上拉电阻值范围 4.7kΩ ~ 10kΩ(具体值根据总线容量与工作频率调整)
  • 写操作完成需要等待器件内部写入完成(写周期 Tw ≈ 5 ms),建议通过 ACK Polling(轮询)或固定延时方式判断写完成后再进行下次写操作
  • 器件通常带有写保护(WP)引脚,可用于防止意外写入(如果封装引脚支持,请参照具体引脚定义)
  • 多器件并联时,请正确配置器件地址引脚(A0、A1、A2),以确保唯一 I2C 地址

五、可靠性与寿命

器件数据保持时间(TDR)高达 100 年,写入耐久性达 1,000,000 次,适合需要长期保存配置、序列号、校准参数或少量日志的应用场景。可靠性指标适用于工业级使用条件,但在极端环境(强辐射、高湿)下应做额外验证。

六、封装与引脚建议

SOP-8 小封装便于通用 PCB 布局。常见引脚排列包含 A0/A1/A2(器件地址)、GND、SDA、SCL、WP、VCC。实际引脚功能与排列请以灵星芯微官方数据手册为准。设计时建议在 VCC 近旁加 0.1µF 陶瓷去耦电容以抑制瞬态噪声。

七、典型应用

  • 工业控制器/仪表的参数保存与校准数据存储
  • 消费类电子设备的配置、序列号、用户设置保存
  • 智能家居、安防设备的固件配置信息和少量事件记录
  • 电池管理、计量仪表的长期数据保持

八、设计建议与注意事项

  • 核查目标系统 I2C 总线速率与上拉电阻匹配,减少信号完整性问题
  • 写入大量数据时应采用分段写入并确保每段写入完成后再继续,避免数据擦写竞争
  • 在多器件并联时合理配置地址引脚并做好电源顺序控制,防止总线冲突
  • 在关键数据保存场景,可结合软件层的冗余与校验(CRC)提高数据可靠性

如需进一步的引脚图、时序图或参考电路,请提供样片型号或索取灵星芯微官方数据手册以获得最准确的硬件接口信息与时序规范。

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