WMSIC Electronic Components

MICROCHIP 24CW1280T-I/OT 24CW1280T

Model24CW1280T-I/OT
PackageSOT-23-5
BrandMICROCHIP
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MICROCHIP 24CW1280T-I / OT
Type
MICROCHIP
Minimum package
3000 个

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MICROCHIP
Electronic Component
24CW1280T-I/OT
Electronic Component
1
Package
SOT-23-5
Electronic Component
EEPROM
Electronic Component
0.2g
Electronic Component
1
Features
Built-in positions(POR)
Electronic Component
BM0264369205
Electronic Component
128Kbit
Operating Temperature
40℃~+85℃
Operating Voltage
1.6V~5.5V
Interface Type
I2C
Electronic Component
100
Clock Frequency(fc)
1MHz

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

24CW1280T-I/OT EEPROM产品概述

24CW1280T-I/OT是美国微芯(Microchip)推出的工业级I2C接口EEPROM,专为需要长期数据保留、高可靠性读写且对体积敏感的场景设计。产品以128Kbit(16KB)存储容量为核心,结合宽电压、高速接口与宽温工作能力,成为工业控制、消费电子等领域的经典存储器件。

一、产品核心定位与基本属性

作为Microchip 24C系列的工业级衍生型号,24CW1280T-I/OT的核心定位是小容量、高可靠非易失性存储:

  • 存储类型:EEPROM(电擦除,无需紫外线,支持在线编程)
  • 容量规格:128Kbit(16384字节,可按字节/页读写)
  • 接口协议:I2C(两线串行,简化系统布线)
  • 温度等级:工业级(-40℃~+85℃,适应恶劣环境)

二、关键技术参数解析

产品参数围绕“可靠性、易用性、适配性”设计,核心指标如下:

2.1 电气与接口参数

  • 工作电压:1.6V~5.5V(覆盖3.3V、5V主流系统,兼容低功耗1.8V设备)
  • 时钟频率:1MHz(支持I2C高速模式,传输效率比100kHz普通模式提升10倍)
  • I2C寻址:支持多设备级联(SOT-23-5封装提供1位地址选项,最多2个设备并联)

2.2 存储与操作性能

  • 写周期时间:5ms(单次字节/页写完成时间,快于部分同容量EEPROM的10ms)
  • 写周期寿命:100万次(比普通Flash的10万次提升10倍,满足频繁状态更新)
  • 数据保留时间:200年(室温下稳定存储,远超工业标准100年)

2.3 环境适应性

  • 工作温度:-40℃~+85℃(支持工业现场低温、高温,如户外传感器、车间设备)
  • 存储温度:-65℃~+150℃(极端存储条件下保持性能)

三、封装与引脚配置

采用SOT-23-5封装(尺寸约2.9mm×1.6mm),体积小巧,适合小型化产品(如智能穿戴、微型传感器)。引脚功能如下:

引脚编号 名称 功能说明 1 WP 写保护:拉高禁止写,拉低允许写 2 SDA I2C数据总线(双向,需外接上拉电阻) 3 SCL I2C时钟总线(主机控制输入) 4 VCC 电源输入(1.6V~5.5V) 5 GND 地

注意:SDA/SCL需外接1kΩ~10kΩ上拉电阻至VCC,确保信号完整性。

四、典型应用场景

产品适配以下场景:

  1. 工业控制:PLC模块配置、电机控制器校准数据、工业传感器参数(温度/压力传感器校准值)
  2. 消费电子:智能穿戴(手环用户设置)、小型家电(遥控器频道记忆、加湿器湿度阈值)、蓝牙模块MAC地址存储
  3. 物联网边缘设备:低功耗节点网络配置、传感器节点状态记录
  4. 医疗设备:小型医疗仪器(血糖仪)用户数据存储(符合低功耗、宽电压要求)

五、可靠性与耐用性优势

核心竞争力体现在“长期可靠”:

  • 数据保留:200年存储寿命确保配置参数(设备ID、校准数据)不丢失
  • 写周期寿命:100万次写操作支持频繁更新(计数器、状态标志)
  • 写保护功能:WP引脚硬件防误写,避免系统异常损坏数据
  • 宽温稳定性:-40℃~+85℃适应工业现场温度波动

六、选型与使用注意事项

  1. 容量匹配:128Kbit适合少量数据存储(1000字节内配置),需更大容量可选24CW256T(256Kbit)
  2. 电源设计:确保电压稳定在1.6V~5.5V,避免过压损坏
  3. 上拉电阻:SDA/SCL必须外接10kΩ上拉电阻,否则无法通信
  4. 写操作限制:单次写需等待5ms完成,避免连续写导致数据错误
  5. 温度范围:不建议用于汽车发动机舱(超85℃),可用于车载仪表板等低温区

24CW1280T-I/OT凭借高可靠性、小体积与宽适配性,成为工业、消费电子领域的常用存储器件,参数设计平衡性能与成本,适合对容量要求不高但可靠性要求严格的应用。

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