WMSIC Electronic Components

MICROCHIP 24AA08T-I/OT 24AA08T

Model24AA08T-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 26+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
MICROCHIP 24AA08T-I / OT
Type
MICROCHIP
Unit
Electronic Component
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
MICROCHIP
Electronic Component
24AA08T-I/OT
Electronic Component
1
Package
SOT-23-5
Electronic Component
EEPROM
Electronic Component
0.043g
Electronic Component
1
Electronic Component
BM0228540187
Electronic Component
8Kbit
Operating Temperature
40℃~+85℃
Operating Voltage
1.7V~5.5V
Interface Type
I2C
Electronic Component
100
Clock Frequency(fc)
400kHz

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

24AA08T-I/OT 产品概述

一、产品简介

24AA08T-I/OT 是 MICROCHIP(美国微芯)推出的一款工业级 I2C 串行 EEPROM,存储容量为 8Kbit(8192 bit,常用于 1KB 数据存储)。器件支持标准 I2C 通信接口(最高 400kHz),工作电压范围宽(1.7V 至 5.5V),工作温度覆盖工业级范围(-40℃ 至 +85℃),并采用紧凑的 SOT-23-5 封装,适合空间受限的嵌入式与消费类应用。

二、主要规格(概要)

  • 存储容量:8Kbit(8192 bit,字节组织请参考数据手册)
  • 接口类型:I2C,支持最高时钟频率 fc = 400kHz(Fast Mode)
  • 工作电压:1.7V ~ 5.5V,支持低压与 5V 系统兼容
  • 工作温度:-40℃ ~ +85℃
  • 写周期时间(Tw):典型 5ms(单次写入完成所需时间)
  • 写周期寿命:1,000,000 次(耐写次数)
  • 数据保留(TDR):200 年(数据保持时间)
  • 功能特性:硬件写保护(WP)、噪声抑制功能
  • 封装:SOT-23-5
  • 品牌:MICROCHIP(美国微芯)
  • 型号:24AA08T-I/OT

三、功能特点

  1. 硬件写保护功能:通过 WP(Write Protect)引脚可以实现对整个器件或特定地址空间的硬件级写保护,防止意外写入和数据损坏,便于实现安全策略。
  2. 噪声抑制功能:内部设计包含噪声抑制或滤波机制,增强 I2C 总线抗干扰能力,提高在电磁噪声环境下的数据可靠性。
  3. 宽电压操作:1.7V~5.5V 宽范围供电,适配电池供电、低压 MCU 和传统 5V 系统。
  4. 工业级温度范围:-40℃ 至 +85℃,适合工业控制及恶劣环境应用。
  5. 长寿命与长数据保留:高达 1,000,000 次写周期寿命及 200 年数据保留指标,适用于需长期保存配置信息或序列号的场景。

四、性能与可靠性要点

  • 写周期时间(Tw ≈ 5ms):在进行字节写或页写后,需等待写完成时间或通过 I2C 总线的 ACK/Busy 检测确认完成。建议在连续写入时考虑写完成延时以保证数据一致性。
  • 高写入耐久度:1,000,000 次写周期足以满足大量读写场景(如频繁记录配置/校准参数),同时 200 年的数据保持能力适用于出厂参数/校准值的长期保存。
  • 噪声抑制与工业适配:器件内部对噪声抑制的支持降低了在电磁干扰较强的工业环境下出现通信错误的风险。

五、典型应用

  • 工业控制器与传感器模块:保存校准数据、设备 ID、配置参数。
  • 消费类与便携设备:记录用户配置、运行日志或校准系数(受电压兼容性与低功耗优势)。
  • 通信设备与网络节点:保存网络配置、设备序列号与密钥(结合硬件写保护提高安全性)。
  • 仪器仪表与医疗设备:长期存储关键配置信息,要求高可靠性与长期数据保持。

六、典型使用建议

  • I2C 总线:在使用中,请为 SCL/SDA 配置适当的上拉电阻(根据总线速度与负载选择阻值),以保证信号质量与通信稳定性。
  • 电源降噪:虽然器件有噪声抑制功能,仍建议在 VCC 端并联去耦电容(如 0.1µF)以抑制电源瞬态噪声。
  • 写保护(WP):将 WP 引脚连接到合适的逻辑电平以按需启用或禁用写保护;对重要数据建议在系统固件层面配合 WP 管理写权限。
  • 写操作管理:在执行连续写操作时,需遵循写周期时间限制并使用 ACK/Busy 检测,避免在写未完成时断电或再行写入导致数据损坏。
  • 查阅数据手册:页写大小、地址组织和电气时序等详细参数请参考 MICROCHIP 官方数据手册以获得精确设计依据。

七、封装与订购信息

  • 封装型号:SOT-23-5,适合表面贴装(SMT)工艺,便于批量生产与自动化贴装。
  • 推荐型号:24AA08T-I/OT(工业级温度范围)
  • 品牌:MICROCHIP(美国微芯)

八、注意事项

  • 虽然器件具有很高的数据保留与写入寿命,但实际寿命受工作环境(温度、应力、写入模式)影响;关键数据建议采用冗余或校验机制保护。
  • 在系统设计中应防止写入时的意外断电,必要时采用电源监测与安全写入流程以避免数据损坏。
  • 详细电气参数、时序图和引脚说明以 MICROCHIP 官方数据手册为准,开发与量产前请务必参考原厂文档与应用笔记。

若需我为您整理该器件的引脚说明、典型电路、或与同类 EEPROM(如 24Cxx 系列)对比表,可继续告诉我您的设计要求与关注点。

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