| PartNumber | AT21CS01-SSHM11-T | AT21CS01-SSHM10-T | AT21CS01-SSHM10-B |
| Description | EEPROM SEEPROM, 1K, SW - 1.7-3.6V, 125Kbps, Ind Tmp, 8-SOIC | EEPROM 1.7-3.6V, 125Kbps, Ind Tmp, 8-SOIC, Add=000 | EEPROM 1.7-3.6V 125Kbps Ind Tmp 2-XSFN |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | EEPROM | EEPROM | EEPROM |
| RoHS | Y | Y | Y |
| Package / Case | SOIC-8 | SOIC-8 | SOIC-8 |
| Series | AT21CS01 | AT21CS01 | AT21CS01 |
| Packaging | Reel | Reel | Tube |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | Microchip Technology / Atmel |
| Product Type | EEPROM | EEPROM | EEPROM |
| Factory Pack Quantity | 4000 | 4000 | 100 |
| Subcategory | Memory & Data Storage | Memory & Data Storage | Memory & Data Storage |
| Mounting Style | - | - | SMD/SMT |
| Memory Size | - | - | 1 kbit |
| Organization | - | - | 128 x 8 |
| Interface Type | - | - | Serial |
| Data Retention | - | - | 100 Year |
| Supply Current Max | - | - | 0.03 mA, 0.5 mA |
| Supply Voltage Min | - | - | 1.7 V |
| Supply Voltage Max | - | - | 3.6 V |
| Minimum Operating Temperature | - | - | - 40 C |
| Maximum Operating Temperature | - | - | + 85 C |
| Moisture Sensitive | - | - | Yes |
| Operating Supply Current | - | - | 200 uA |
| Operating Supply Voltage | - | - | 1.7 V to 3.6 V |