AT24CSW020-UUM0B-T vs AT24C02D-SSHM-T 对比
详细并排对比 AT24CSW020-UUM0B-T 出自 Microchip Technology 和 AT24C02D-SSHM-T 出自 Microchip Technology。对比关键规格、电气参数、封装、生命周期状态、价格和供货情况，以确定最适合您设计需求的元器件。
Microchip Technology
AT24CSW020-UUM0B-T - 2Kb I2C Serial EEPROM with Security | Microchip
AT24CSW020-UUM0B-T ✓ 量产中Microchip Technology
AT24C02D-SSHM-T - 2Kb I2C EEPROM, 1MHz, 1.7V-5.5V, 8-SOIC | Microchip
AT24C02D-SSHM-T ✓ 量产中规格对比
| 参数 | AT24CSW020-UUM0B-T | AT24C02D-SSHM-T |
|---|---|---|
| 品牌 | Microchip Technology | Microchip Technology |
| 分类 | Memory ICs | EEPROM |
| 生命周期状态 | 有效 | 有效 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $0.31 | $0.17 |
| 存储器类型 | Non-Volatile EEPROM | Non-volatile EEPROM (Serial) |
| 存储容量 | 2 Kbit (256 x 8) | 2 Kbit |
| 接口 | I2C (2-wire) | I2C (2-Wire Serial) |
| Clock Frequency (Max) | 1 MHz | — |
| Access Time | 450 ns | 450 ns |
| 电源电压 | 1.7 V to 3.6 V | — |
| Write Cycle Time | 5 ms (typical page write) | — |
| 工作温度 | -40 C to +85 C (Industrial) | — |
| 封装 | 4-WLCSP (4-ball WLCSP) | — |
| 安装类型 | Surface Mount | Surface Mount |
| Unique Serial Number | Factory pre-programmed 32-bit (per datasheet) | — |
| Security Register | Yes (user-programmable) | — |
| Write Protection | Hardware WP pin + Software Write Protection (SWP) | — |
| Power-On Reset (POR) | Built-in | — |
| MSL 等级 | 1 (per WLCSP handling guidelines) | 1 (unlimited floor life at <30 C / 85% RH) |
| RoHS 状态 | Compliant | Compliant (Pb/HALO-free, NiPdAu lead finish) |
| Memory Organization | — | 256 x 8 bits |
| 最大时钟频率 | — | 1 MHz (Fast-mode Plus) |
| Supply Voltage (VCC) | — | 1.7 V to 5.5 V |
| 工作温度范围 | — | -40 C to +85 C |
| 封装 / 外壳 | — | 8-SOIC (0.154" / 3.90 mm) |
| Write Cycle Time (max) | — | 5 ms (typical) |
| Endurance (Write/Erase Cycles) | — | 1,000,000 cycles |
| Data Retention | — | >200 years |
| Device Address Pins | — | A0, A1, A2 (hardware-selectable, up to 8 devices per bus) |
| Write Protect Pin | — | Yes (WP, active-high) |
| Input Type (SCL/SDA) | — | Schmitt-trigger |