| Part Number | AT24C128Y1-10YI-1.8 | AT24C128Y1-10YU-1.8 | 
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | 
| Category | Memory | Memory | 
|   |   | |
| Product Status | Obsolete | Obsolete | 
| Memory Type | Non-Volatile | Non-Volatile | 
| Memory Format | EEPROM | EEPROM | 
| Technology | EEPROM | EEPROM | 
| Memory Size | 128Kb (16K x 8) | 128Kb (16K x 8) | 
| Memory Interface | I²C | I²C | 
| Clock Frequency | 400 kHz | 400 kHz | 
| Write Cycle Time - Word, Page | 10ms | 10ms | 
| Access Time | 900 ns | 900 ns | 
| Voltage - Supply | 1.8V ~ 3.6V | 1.8V ~ 3.6V | 
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 8-VDFN Exposed Pad | 8-VDFN Exposed Pad | 
| Supplier Device Package | 8-MAP (3x4.9) | 8-MAP (3x4.9) |