| PartNumber | ATSHA204A-SSHDA-T | ATSHA204A-SSHCZ-T | ATSHA204A-SSHDA-B |
| Description | Security ICs / Authentication ICs CryptAuthEE SHA256 TWI | Security ICs / Authentication ICs CryptAuthEE SHA256 1Wir | Security ICs / Authentication ICs CryptAuth SHA256 I2C |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | Security ICs / Authentication ICs | Security ICs / Authentication ICs | Security ICs / Authentication ICs |
| RoHS | Y | Y | Y |
| Data Bus Width | 72 bit | 72 bit | 72 bit |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | SOIC-8 | UDFN-8 | SOIC-8 |
| Packaging | Reel | Reel | Tube |
| Series | ATSHA204 | ATSHA204 | ATSHA204 |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | Microchip Technology / Atmel |
| Operating Supply Voltage | 2 V to 5.5 V | 2 V to 5.5 V | 2 V to 5.5 V |
| Product Type | Security ICs / Authentication ICs | Security ICs / Authentication ICs | Security ICs / Authentication ICs |
| Factory Pack Quantity | 4000 | 15000 | 100 |
| Subcategory | Security ICs / Authentication ICs | Security ICs / Authentication ICs | Security ICs / Authentication ICs |
| Unit Weight | 0.019048 oz | 0.000335 oz | 0.019048 oz |