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| PartNumber | AT24C128B-TH-B | AT24C128B-TH-T | AT24C128B-PU |
| Description | EEPROM IND TEMP 1.8V - 128Kbit 2-Wire Bus | EEPROM IND TEMP 1.8V - 128Kbit 2-Wire Bus | EEPROM IND TEMP 1.8V - 128Kbit 2-Wire Bus |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | EEPROM | EEPROM | EEPROM |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | Through Hole |
| Package / Case | TSSOP-8 | TSSOP-8 | PDIP-8 |
| Memory Size | 128 kbit | 128 kbit | 128 kbit |
| Organization | 16 k x 8 | 16 k x 8 | 16 k x 8 |
| Interface Type | Serial, 2-Wire, I2C | Serial, 2-Wire, I2C | Serial, 2-Wire, I2C |
| Access Time | 900 ns | 550 ns | 550 ns |
| Data Retention | 40 Year | 40 Year | 40 Year |
| Maximum Clock Frequency | 1 MHz | 1 MHz | 1 MHz |
| Supply Current Max | 3 mA | 3 mA | 3 mA |
| Supply Voltage Min | 1.8 V | 1.8 V | 1.8 V |
| Supply Voltage Max | 5.5 V | 3.6 V | 3.6 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Height | 1 mm | 1 mm | 3.3 mm |
| Length | 3 mm | 3 mm | 9.27 mm |
| Width | 4.4 mm | 4.4 mm | 6.35 mm |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | Microchip Technology / Atmel |
| Operating Supply Current | 3 mA | 3 mA | 3 mA |
| Operating Supply Voltage | 1.8 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Product Type | EEPROM | EEPROM | EEPROM |
| Factory Pack Quantity | 100 | 5000 | 50 |
| Subcategory | Memory & Data Storage | Memory & Data Storage | Memory & Data Storage |
| Unit Weight | 0.005573 oz | 0.005573 oz | 0.032805 oz |