| Part Number | M24256-DFDW6TP | M24256-BFDW6TP | 
|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | 
| Category | Memory | Memory | 
|   |   | |
| Product Status | Active | Active | 
| 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 | 400 kHz | 1 MHz | 
| Write Cycle Time - Word, Page | 5ms | 5ms | 
| Access Time | 450 ns | 450 ns | 
| Voltage - Supply | 1.7V ~ 5.5V | 1.7V ~ 5.5V | 
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 8-TSSOP (0.173", 4.40mm Width) | 8-TSSOP (0.173", 4.40mm Width) | 
| Supplier Device Package | 8-TSSOP | 8-TSSOP |