| PartNumber | AT21CS01-STUM11-T | AT21CS01-STUM12-T | AT21CS01-STUM10-T |
| Description | EEPROM SEEPROM, 1K, SW - 1.7-3.6V, 125Kbps, Ind Tmp, 3-SOT23 | EEPROM SEEPROM, 1K, SW - 1.7-3.6V, 125Kbps, Ind Tmp, 3-SOT23 | EEPROM 1.7-3.6V, 125Kbps, Ind Tmp, 3-SOT23, Add=000 |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | EEPROM | EEPROM | EEPROM |
| RoHS | Y | Y | Y |
| Package / Case | SOT-23-3 | SOT-23-3 | SOT-23-3 |
| Series | AT21CS01 | AT21CS01 | AT21CS01 |
| Packaging | Reel | Reel | Reel |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | Microchip Technology / Atmel |
| Product Type | EEPROM | EEPROM | EEPROM |
| Factory Pack Quantity | 5000 | 5000 | 5000 |
| Subcategory | Memory & Data Storage | Memory & Data Storage | Memory & Data Storage |