| Part Number | AT24C256BN-SH-T | AT24C256BW-SH-T |
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology |
| Category | Memory | Memory |
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| Product Status | Obsolete | Obsolete |
| Memory Type | Non-Volatile | Non-Volatile |
| Memory Format | EEPROM | EEPROM |
| Technology | EEPROM | EEPROM |
| Memory Size | 256Kb (32K x 8) | 256Kb (32K x 8) |
| Memory Interface | I²C | I²C |
| Clock Frequency | 1 MHz | 1 MHz |
| Write Cycle Time - Word, Page | 5ms | 5ms |
| Access Time | 550 ns | 550 ns |
| Voltage - Supply | 1.8V ~ 5.5V | 1.8V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.209", 5.30mm Width) |
| Supplier Device Package | 8-SOIC | 8-SOIC |