WMSIC Electronic Components

LX 24LC64(LX) 24LC64

Model24LC64(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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
LX 24LC64(LX)
Type
LX
Minimum package
4000 卷

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LX
Electronic Component
24LC64(LX)
Electronic Component
1
Package
SOP-8
Electronic Component
EEPROM
Electronic Component
0.102g
Electronic Component
1
Electronic Component
BM0264498251
Electronic Component
64Kbit
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.

24LC64(LX) EEPROM 产品概述

一、概述

24LC64(LX) 是灵星芯微(LX)推出的一款通用串行 EEPROM,容量为 64Kbit(8192 字节),封装为 SOP-8。器件采用 I2C(两线)接口,最高时钟频率可达 1MHz(Fast-mode Plus),支持宽电源电压范围 1.8V ~ 5.5V,工作温度范围 -40℃ ~ +85℃,适用于各类工业级嵌入式系统中用于非易失性数据存储的场景。器件集成硬件写保护和噪声抑制功能,具有长期数据保持和高写入寿命,适合保存配置参数、校准数据、日志等关键信息。

二、主要特性

  • 存储容量:64Kbit(8K × 8 位)
  • 接口类型:I2C(最高 1MHz,Fast-mode Plus)
  • 工作电压:1.8V ~ 5.5V,单电源供电
  • 工作温度:-40℃ ~ +85℃
  • 写周期时间(Tw):典型 5ms(页写完成所需时间)
  • 写周期寿命:100 万次(典型)
  • 数据保留(TDR):100 年(典型)
  • 硬件写保护(WP 引脚):提供对整个阵列的硬件写保护
  • 噪声抑制:内部滤波/抖动抑制,增强总线稳定性
  • 封装:SOP-8(工业通用封装)
  • 品牌:LX(灵星芯微)

三、功能与工作原理(要点)

  • I2C 通讯:通过 SDA(数据线)和 SCL(时钟线)进行双向数据传输,支持标准模式、快速模式及 Fast-mode Plus(最高 1MHz),使用器件地址位(A0–A2)实现多器件挂接。
  • 页写操作:器件支持页写(减少总线传输、提升写入效率),典型页大小为 32 字节(建议按页边界对齐进行写入以获得最佳性能)。
  • 写保护:当 WP(Write Protect)引脚被拉高/使能时,可针对整个存储器实现硬件写保护,避免误写入。将 WP 置低以允许写操作。
  • 噪声抑制:内置数字滤波或去抖电路,降低总线毛刺对写入/读取的影响,提高在工业电磁环境中的可靠性。

四、典型电气与机械参数(摘要)

  • 电源电压:1.8V 至 5.5V
  • 工作温度:-40℃ 至 +85℃
  • 时钟频率(fc):最高 1MHz
  • 写周期时间(Tw):典型 5ms(单次页写)
  • 写入寿命:1,000,000 次
  • 数据保持:100 年
  • 封装:SOP-8(适合自动贴装和手工焊接)

(注:详细的电气特性、时序图与引脚排列请参考 LX 官方数据手册以获取精确的极限值和测试条件。)

五、典型应用场景

  • 工业控制器与采集模块:保存设备配置、校准参数与历史事件
  • 可穿戴及低功耗便携设备:在低电压工作环境下保存用户设置
  • 医疗设备与测量仪器:存储校准系数和设备标识信息
  • 汽车电子(非车规拓展情形):用于车内非关键配置数据(需留意温度等级和车规要求)
  • 网络设备与嵌入式系统:固件外部配置、MAC/序列号存储

六、封装与引脚说明(概览)

SOP-8 封装通常包含以下功能引脚(不同厂商引脚次序可能略有差异,请以官方数据手册为准):

  • 地址引脚 A0、A1、A2:用于设定器件 I2C 低字节地址,实现多器件挂接
  • VCC / GND:电源与地
  • SCL / SDA:I2C 时钟与数据线
  • WP:硬件写保护

七、使用建议与注意事项

  • 拉升电阻:SDA/SCL 需要外部上拉电阻。根据总线速率和总线容量选择合适阻值,1MHz 总线时通常采用较小阻值(例如 2.2kΩ 左右),低速可使用更大阻值(如 4.7kΩ ~ 10kΩ)。
  • 页写优化:为提高写入效率与延长寿命,尽量使用页写并按页边界对齐写入数据,减少对单字节频繁写入。
  • 写保护管理:在需要固化配置或在系统固件更新前后,合理控制 WP 引脚以防止误写。
  • 电磁兼容与噪声:尽管芯片内置噪声抑制功能,建议在 PCB 布局中尽量将 I2C 线短、避免与高频信号并行,必要时加装共模滤波或在关键节点添加 RC 抗干扰处理。
  • 温度与寿命:针对长期数据保存和高写入频率的场景,评估写入寿命消耗并考虑寿命均衡策略(wear leveling)以延长系统可靠性。

八、结论

24LC64(LX) 是一款面向工业与通用嵌入式应用的高可靠 EEPROM,具备宽电压、长数据保持和高写入寿命等优点。其硬件写保护与噪声抑制功能使得在复杂电磁环境和需要保护关键配置的产品中表现出色。在设计时结合页面写入、合理的上拉电阻与良好 PCB 布局,可以充分发挥该器件的性能与可靠性。如需量产或关键应用,建议参考灵星芯微官方数据手册以获取完整电气参数与封装机械尺寸。

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