微芯Microchip代理 SPI EEPROM 25AA256-I/SN
25AA256-I-SN 作为 Microchip SPI 接口 EEPROM 产品线的代表型号，具备 256Kbit（32KB）的存储容量，采用标准 SPI 通信协议，支持 Mode 0 与 Mode 3 两种工作模式，可兼容 1.8V~5.5V 宽电压范围，工业级温度覆盖 - 40℃~+85℃，满足严苛环境应用需求。该芯片搭载百万次高耐久擦写能力与超 200 年数据保存特性，辅以硬件 WP 引脚与软件状态寄存器双重写保护机制，封装选用小巧的 SOIC-8 贴片形式，专为各类电子设备的非易失性数据存储场景设计。
美国微芯（Microchip）是全球嵌入式半导体领域的核心供应商，专注于微控制器、模拟器件及非易失性存储器的研发与制造，其 SPI 接口 EEPROM 产品线凭借高可靠性、低功耗、宽温适配及长期稳定供货的核心优势，成为小容量数据存储的主流选择。该产品线涵盖 25AA/25LC/25CS 等多个系列，容量覆盖 1Kbit 至 4Mbit，可适配工业控制、汽车电子、消费数码、物联网终端、医疗设备等多领域场景，广泛用于存储设备配置参数、校准数据、序列号、运行日志等掉电不丢失的关键信息，为嵌入式系统提供高效、稳定的存储解决方案。
--I2C 256Kbit EEPROM--
| Part Number | Interface | Capacity (kb) | Pkg. | Voltage | Temp | Download |
| 24AA256-E-MF | I2C | 256Kbit | DFN-S | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24AA256-E-MS | I2C | 256Kbit | MSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24AA256-E-SM | I2C | 256Kbit | SOIJ | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24AA256-E-SN | I2C | 256Kbit | SOIC | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24AA256-E-ST | I2C | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24AA256-I-MF | I2C | 256Kbit | DFN-S | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24AA256-I-MS | I2C | 256Kbit | MSOP | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24AA256-I-SM | I2C | 256Kbit | SOIJ | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24AA256-I-SN | I2C | 256Kbit | SOIC | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24AA256-I-ST | I2C | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24AA256T-E-MF | I2C | 256Kbit | DFN-S | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24AA256T-E-MNY | I2C | 256Kbit | TDFN | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24AA256T-E-MS | I2C | 256Kbit | MSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24AA256T-E-SM | I2C | 256Kbit | SOIJ | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24AA256T-E-SN | I2C | 256Kbit | SOIC | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24AA256T-E-SNCODTW | I2C | 256Kbit | SOIC | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24AA256T-E-ST | I2C | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24AA256T-E-ST16KVAO | I2C | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24AA256T-I-MF | I2C | 256Kbit | DFN-S | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24AA256T-I-MNY | I2C | 256Kbit | TDFN | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24AA256T-I-MS | I2C | 256Kbit | MSOP | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24AA256T-I-SM | I2C | 256Kbit | SOIJ | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24AA256T-I-SN | I2C | 256Kbit | SOIC | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24AA256T-I-ST | I2C | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24AA256UID-I-SN | I2C | 256Kbit | SOIC | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24AA256UID-I-ST | I2C | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24AA256UIDT-I-SN | I2C | 256Kbit | SOIC | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24AA256UIDT-I-ST | I2C | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24CS256-E-MS | I2C | 256Kbit | MSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24CS256-E-SM | I2C | 256Kbit | SOIJ | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24CS256-E-SN | I2C | 256Kbit | SOIC | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24CS256-E-SN66KVAO | I2C | 256Kbit | SOIC | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24CS256-I-MS | I2C | 256Kbit | MSOP | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24CS256-I-SM | I2C | 256Kbit | SOIJ | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24CS256-I-SN | I2C | 256Kbit | SOIC | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24CS256T-E-MS | I2C | 256Kbit | MSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24CS256T-E-MS66KVAO | I2C | 256Kbit | MSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24CS256T-E-OT | I2C | 256Kbit | SOT-23 | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24CS256T-E-OT66KVAO | I2C | 256Kbit | SOT-23 | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24CS256T-E-Q4B | I2C | 256Kbit | UDFN | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24CS256T-E-Q4B66KVAO | I2C | 256Kbit | UDFN | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24CS256T-E-SM | I2C | 256Kbit | SOIJ | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24CS256T-E-SN | I2C | 256Kbit | SOIC | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24CS256T-E-SN66KVAO | I2C | 256Kbit | SOIC | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24CS256T-E-ST | I2C | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24CS256T-E-ST66KVAO | I2C | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24CS256T-I-CS0668 | I2C | 256Kbit | WLCSP | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24CS256T-I-MS | I2C | 256Kbit | MSOP | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24CS256T-I-OT | I2C | 256Kbit | SOT-23 | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24CS256T-I-Q4B | I2C | 256Kbit | UDFN | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24CS256T-I-SM | I2C | 256Kbit | SOIJ | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24CS256T-I-SN | I2C | 256Kbit | SOIC | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24CS256T-I-ST | I2C | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24FC256-E-SN | I2C | 256Kbit | SOIC | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24FC256-E-ST | I2C | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24FC256-E-ST16KVAO | I2C | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24FC256-I-MF | I2C | 256Kbit | DFN-S | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24FC256-I-MS | I2C | 256Kbit | MSOP | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24FC256-I-SM | I2C | 256Kbit | SOIJ | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24FC256-I-SN | I2C | 256Kbit | SOIC | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24FC256-I-ST | I2C | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24FC256T-E-OT | I2C | 256Kbit | SOT-23 | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24FC256T-E-SN | I2C | 256Kbit | SOIC | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24FC256T-E-ST | I2C | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24FC256T-E-ST16KVAO | I2C | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24FC256T-I-MF | I2C | 256Kbit | DFN-S | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24FC256T-I-MNY | I2C | 256Kbit | TDFN | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24FC256T-I-MS | I2C | 256Kbit | MSOP | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24FC256T-I-OT | I2C | 256Kbit | SOT-23 | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24FC256T-I-SM | I2C | 256Kbit | SOIJ | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24FC256T-I-SN | I2C | 256Kbit | SOIC | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24FC256T-I-ST | I2C | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24LC256-E-MF | I2C | 256Kbit | DFN-S | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24LC256-E-MS | I2C | 256Kbit | MSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24LC256-E-SM | I2C | 256Kbit | SOIJ | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24LC256-E-SN | I2C | 256Kbit | SOIC | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24LC256-E-ST | I2C | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24LC256-E-ST16KVAO | I2C | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24LC256-I-MF | I2C | 256Kbit | DFN-S | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24LC256-I-MS | I2C | 256Kbit | MSOP | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24LC256-I-SM | I2C | 256Kbit | SOIJ | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24LC256-I-SN | I2C | 256Kbit | SOIC | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24LC256-I-ST | I2C | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24LC256T-E-MF | I2C | 256Kbit | DFN-S | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24LC256T-E-MNY | I2C | 256Kbit | TDFN | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24LC256T-E-MS | I2C | 256Kbit | MSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24LC256T-E-SM | I2C | 256Kbit | SOIJ | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24LC256T-E-SN | I2C | 256Kbit | SOIC | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24LC256T-E-SN16KVAO | I2C | 256Kbit | SOIC | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24LC256T-E-ST | I2C | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24LC256T-E-ST16KVAO | I2C | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
| 24LC256T-I-MF | I2C | 256Kbit | DFN-S | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24LC256T-I-MNY | I2C | 256Kbit | TDFN | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24LC256T-I-MS | I2C | 256Kbit | MSOP | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24LC256T-I-SM | I2C | 256Kbit | SOIJ | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24LC256T-I-SN | I2C | 256Kbit | SOIC | 1.7V~5.5V | -40C to +85C | 暂无 |
| 24LC256T-I-ST | I2C | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +85C | 暂无 |
| AT24C256C-MAHL-E | I2C | 256Kbit | UDFN | 1.7V~5.5V | -40C to +85C | 暂无 |
| AT24C256C-MAHL-T | I2C | 256Kbit | UDFN | 1.7V~5.5V | -40C to +85C | 暂无 |
| AT24C256C-MAPD-E | I2C | 256Kbit | UDFN | 1.7V~5.5V | -40C to +125C | 暂无 |
| AT24C256C-MAPD-T | I2C | 256Kbit | UDFN | 1.7V~5.5V | -40C to +125C | 暂无 |
| AT24C256C-SSHL-B | I2C | 256Kbit | SOIC | 1.7V~5.5V | -40C to +85C | 暂无 |
| AT24C256C-SSHL-T | I2C | 256Kbit | SOIC | 1.7V~5.5V | -40C to +85C | 暂无 |
| AT24C256C-SSPD-T | I2C | 256Kbit | SOIC | 1.7V~5.5V | -40C to +125C | 暂无 |
| AT24C256C-XHL-B | I2C | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +85C | 暂无 |
| AT24C256C-XHL-T | I2C | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +85C | 暂无 |
| AT24C256C-XPD-T | I2C | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
--SPI 256Kbit EEPROM--
| Part Number | Interface | Capacity (kb) | Pkg. | Voltage | Temp | Download |
| 25AA256-E-MF | SPI | 256Kbit | DFN-S | 1.7V~5.5V | -40C to +125C | 暂无 |
| 25AA256-E-SM | SPI | 256Kbit | SOIJ | 1.7V~5.5V | -40C to +125C | 暂无 |
| 25AA256-E-SN | SPI | 256Kbit | SOIC | 1.7V~5.5V | -40C to +125C | 暂无 |
| 25AA256-E-ST | SPI | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
| 25AA256-I-MF | SPI | 256Kbit | DFN-S | 1.7V~5.5V | -40C to +85C | 暂无 |
| 25AA256-I-SM | SPI | 256Kbit | SOIJ | 1.7V~5.5V | -40C to +85C | 暂无 |
| 25AA256-I-SN | SPI | 256Kbit | SOIC | 1.7V~5.5V | -40C to +85C | 暂无 |
| 25AA256-I-ST | SPI | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +85C | 暂无 |
| 25AA256T-E-MF | SPI | 256Kbit | DFN-S | 1.7V~5.5V | -40C to +125C | 暂无 |
| 25AA256T-E-SM | SPI | 256Kbit | SOIJ | 1.7V~5.5V | -40C to +125C | 暂无 |
| 25AA256T-E-SN | SPI | 256Kbit | SOIC | 1.7V~5.5V | -40C to +125C | 暂无 |
| 25AA256T-E-ST | SPI | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
| 25AA256T-E-ST16KVAO | SPI | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
| 25AA256T-I-MF | SPI | 256Kbit | DFN-S | 1.7V~5.5V | -40C to +85C | 暂无 |
| 25AA256T-I-SM | SPI | 256Kbit | SOIJ | 1.7V~5.5V | -40C to +85C | 暂无 |
| 25AA256T-I-SN | SPI | 256Kbit | SOIC | 1.7V~5.5V | -40C to +85C | 暂无 |
| 25AA256T-I-ST | SPI | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +85C | 暂无 |
| 25LC256-E-MF | SPI | 256Kbit | DFN-S | 1.7V~5.5V | -40C to +125C | 暂无 |
| 25LC256-E-SM | SPI | 256Kbit | SOIJ | 1.7V~5.5V | -40C to +125C | 暂无 |
| 25LC256-E-SM16KVAO | SPI | 256Kbit | SOIJ | 1.7V~5.5V | -40C to +125C | 暂无 |
| 25LC256-E-SN | SPI | 256Kbit | SOIC | 1.7V~5.5V | -40C to +125C | 暂无 |
| 25LC256-E-SN16KVAO | SPI | 256Kbit | SOIC | 1.7V~5.5V | -40C to +125C | 暂无 |
| 25LC256-E-ST | SPI | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
| 25LC256-E-ST16KVAO | SPI | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
| 25LC256-H-SN | SPI | 256Kbit | SOIC | 1.7V~5.5V | -40C to +150C | 暂无 |
| 25LC256-I-MF | SPI | 256Kbit | DFN-S | 1.7V~5.5V | -40C to +85C | 暂无 |
| 25LC256-I-SM | SPI | 256Kbit | SOIJ | 1.7V~5.5V | -40C to +85C | 暂无 |
| 25LC256-I-SN | SPI | 256Kbit | SOIC | 1.7V~5.5V | -40C to +85C | 暂无 |
| 25LC256-I-ST | SPI | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +85C | 暂无 |
| 25LC256-M-MF | SPI | 256Kbit | DFN-S | 1.7V~5.5V | -55C to +125C | 暂无 |
| 25LC256T-E-MF | SPI | 256Kbit | DFN-S | 1.7V~5.5V | -40C to +125C | 暂无 |
| 25LC256T-E-SM | SPI | 256Kbit | SOIJ | 1.7V~5.5V | -40C to +125C | 暂无 |
| 25LC256T-E-SM16KVAO | SPI | 256Kbit | SOIJ | 1.7V~5.5V | -40C to +125C | 暂无 |
| 25LC256T-E-SN | SPI | 256Kbit | SOIC | 1.7V~5.5V | -40C to +125C | 暂无 |
| 25LC256T-E-SN16KVAO | SPI | 256Kbit | SOIC | 1.7V~5.5V | -40C to +125C | 暂无 |
| 25LC256T-E-ST | SPI | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
| 25LC256T-E-ST16KVAO | SPI | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
| 25LC256T-H-SN | SPI | 256Kbit | SOIC | 1.7V~5.5V | -40C to +150C | 暂无 |
| 25LC256T-I-MF | SPI | 256Kbit | DFN-S | 1.7V~5.5V | -40C to +85C | 暂无 |
| 25LC256T-I-SM | SPI | 256Kbit | SOIJ | 1.7V~5.5V | -40C to +85C | 暂无 |
| 25LC256T-I-SN | SPI | 256Kbit | SOIC | 1.7V~5.5V | -40C to +85C | 暂无 |
| 25LC256T-I-ST | SPI | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +85C | 暂无 |
| 25LC256T-M-MF | SPI | 256Kbit | DFN-S | 1.7V~5.5V | -55C to +125C | 暂无 |
| AT25256B-MAHL-E | SPI | 256Kbit | UDFN | 1.7V~5.5V | -40C to +85C | 暂无 |
| AT25256B-MAHL-T | SPI | 256Kbit | UDFN | 1.7V~5.5V | -40C to +85C | 暂无 |
| AT25256B-MAPDGV-E | SPI | 256Kbit | UDFN | 1.7V~5.5V | -40C to +125C | 暂无 |
| AT25256B-MAPDGV-T | SPI | 256Kbit | UDFN | 1.7V~5.5V | -40C to +125C | 暂无 |
| AT25256B-SSHL-B | SPI | 256Kbit | SOIC | 1.7V~5.5V | -40C to +85C | 暂无 |
| AT25256B-SSHL-T | SPI | 256Kbit | SOIC | 1.7V~5.5V | -40C to +85C | 暂无 |
| AT25256B-SSPDGV-T | SPI | 256Kbit | SOIC | 1.7V~5.5V | -40C to +125C | 暂无 |
| AT25256B-XHL-B | SPI | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +85C | 暂无 |
| AT25256B-XHL-T | SPI | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +85C | 暂无 |
| AT25256B-XPDGV-T | SPI | 256Kbit | TSSOP | 1.7V~5.5V | -40C to +125C | 暂无 |
上一个：25AA256-I-SM
下一个：25AA256-I-ST
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