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MICROCHIP 24AA025E48-I/SN 24AA025E48
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- MICROCHIP 24AA025E48-I / SN
- Type
- MICROCHIP
- Minimum package
- 10000 管
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- MICROCHIP
- Electronic Component
- 24AA025E48-I/SN
- Electronic Component
- 1
- Package
- SOIC-8
- Electronic Component
- EEPROM
- Electronic Component
- 0.169g
- Electronic Component
- 1
- Electronic Component
- BM0229917918
- Electronic Component
- 2Kbit
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 1.7V~5.5V
- Interface Type
- I2C
- Electronic Component
- 100
- Clock Frequency(fc)
- 400kHz
- 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.
24AA025E48-I/SN 产品概述
一、概述
24AA025E48-I/SN 是 MICROCHIP（美国微芯）出品的一款小容量、低功耗、串行 I²C EEPROM，容量为 2Kbit（组织为 256 x 8）。器件支持标准及快速 I²C 时钟（高达 400 kHz），工作电压范围宽（1.7V 至 5.5V），工作温度范围达工业级 -40℃ 到 +85℃，非常适合需要可靠非易失性存储的嵌入式系统与消费类电子产品。
二、主要特性
- 存储容量：2Kbit（256 x 8）。
- 接口类型：I²C，总线速率可达 400 kHz。
- 工作电压：1.7V～5.5V，兼容 1.8V/3.3V/5V 系统。
- 工作温度：-40℃ ～ +85℃（工业级）。
- 数据保持（Data Retention，TDR）：典型 200 年。
- 写周期寿命（Endurance）：高达 1,000,000 次。
- 单次写入周期时间（Tw）：典型 5 ms（写入完成需等待写入周期结束）。
- 封装：SOIC-8，便于常规 SMT 装配与测试。
- 读取性能：文档中标注有 900 ns 的典型访问/响应时间（作为快速读出参考，具体时序请参见官方时序表）。
三、电气与可靠性说明
器件的宽电压范围和低功耗特性，使其在电源变化和电池供电场景中表现良好。1,000,000 次写入寿命适用于频繁写操作场景（如参数记录、循环计数等）；而 200 年的数据保持能力则保证了长期保存设定参数、校准数据和标识信息的可靠性。写入时需留意典型 5 ms 写周期，连续写入应采取应答/忙标志检测或延时等待，避免数据冲突。
四、典型应用
- 系统配置与参数存储（固件配置、校准系数）。
- 小容量日志、计数器或状态记录。
- 设备唯一识别信息与序列号保存。
- 启动时读取非易失性参数，适配多电压平台设计需求。
- 低功耗/电池供电设备中的非易失性备份。
五、封装与实用建议
SOIC-8 封装便于在标准 PCB 工艺中使用。设计时建议：
- 在 I²C 总线上设置合适的上拉电阻，按照系统总线速率调整阻值以满足 400 kHz 通信。
- 写操作完成后使用器件的忙标志（ACK/NAK）或固定的写延时（推荐 ≥5 ms）确认写入完成。
- 针对频繁写入场景，设计环形缓冲或写回策略以延长器件寿命。
- 如需高精度时序/电气参数，请以 MICROCHIP 官方数据手册为准，并参考典型应用电路。
六、总结
24AA025E48-I/SN 提供了稳定、长寿命、小容量的 I²C EEPROM 解决方案，具有宽电压、工业级温度范围与高可靠性特性，适合多种嵌入式和工业应用场景。在选型与设计阶段，结合实际读写频率与数据保护策略，可充分发挥其低功耗与长期数据保持优势。若需更详细的电气特性、时序图与程序实例，请参阅 MICROCHIP 官方数据手册与应用说明。
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