24LC256T-I/SN是 Microchip Technology 生产的 256 Kbit(32 KB)串行 EEPROM 芯片,采用标准的 I²C 接口,最高支持 400 kHz 的时钟频率。其存储阵列组织为 32K x 8,工作电压范围为 1.7V 至 5.5V(宽压设计),并能在 -40°C 至 +85°C 的工业级温度下稳定运行。该芯片采用 8 引脚 SOIC(150 mil 宽)封装,提供 64 字节 的页写入缓冲区、最大 5 ms 的自定时写周期以及硬件写保护(WP)引脚。
微芯科技(Microchip)的 EEPROM 产品线覆盖 1 Kbit~1 Mbit,提供I²C(24AA/24LC/24CS、AT24C)、SPI(25LC/25AA)、UNI/O(11AA/11LC)三大接口,电压 1.7 V~5.5 V,工业级 −40 °C~+85 °C、车规级 −40 °C~+125 °C,写周期 5 ms,擦写寿命 >100 万次,数据保持 40~200 年。芯片采用 0.85 mm×1.38 mm WLCSP、SOT-23、SOIC、TQFP 等全系列封装,待机电流 1 µA,SPI 最高时钟 20 MHz,I²C 最高 3.4 MHz,内置块写保护、ID 页锁定、ESD>4 kV。典型应用包括汽车 ABS/摄像头模组、工业传感器与电表、智能家居网关、消费电子 DLP 投影、蓝牙耳机、血糖仪以及 DIMM SPD 温度传感器等需要掉电保存校准值、用户设置或加密密钥的场景。
--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 |
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