| PartNumber | AT28C256-25LM/883 | AT28C256-25LM/883-829 | AT28C256-25LM/883-815 |
| Description | EEPROM 256K 11MIL GRIND - 250NS | EEPROM 250NS, LCC, 883C; LEV B COMPLIANT | EEPROM 250NS, LCC, 883C; LEV B COMPLIANT |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | EEPROM | EEPROM | EEPROM |
| RoHS | Y | Y | Y |
| Memory Size | 32 kbit | 256 kbit | 128 kbit |
| Organization | 8 k x 16 | 32 k x 8 | 16 k x 8 |
| Interface Type | Serial, 2-Wire, I2C | Serial, 4-Wire, SDI, SPI | Serial, 4-Wire, SDI, SPI |
| Data Retention | 10 Year | 200 Year | 200 Year |
| Minimum Operating Temperature | 0 C | - | - 40 C |
| Maximum Operating Temperature | + 70 C | - | + 125 C |
| Brand | Microchip Technology / Atmel | Microchip Technology | Microchip Technology |
| Product Type | EEPROM | EEPROM | EEPROM |
| Factory Pack Quantity | 1 | 2500 | 3300 |
| Subcategory | Memory & Data Storage | Memory & Data Storage | Memory & Data Storage |
| Mounting Style | - | SMD/SMT | SMD/SMT |
| Package / Case | - | TSSOP-8 | DFN-8 |
| Packaging | - | Reel | Reel |
| Unit Weight | - | 0.005573 oz | 0.001319 oz |
| Access Time | - | - | 100 ns |
| Maximum Clock Frequency | - | - | 10 MHz |
| Supply Current Max | - | - | 5 mA |
| Supply Voltage Min | - | - | 2.5 V |
| Supply Voltage Max | - | - | 5.5 V |
| Height | - | - | 0.84 mm |
| Length | - | - | 5 mm |
| Width | - | - | 6 mm |
| Operating Supply Current | - | - | 5 mA |
| Operating Supply Voltage | - | - | 2.5 V to 5.5 V |