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| PartNumber | CY15B256J-SXE | CY15B256J-SXA | CY15B256J-SXAT |
| Description | F-RAM 256Kb serial I2C F-RAM, 3Volt | F-RAM F-RAM Memory Serial | F-RAM F-RAM Memory Serial |
| Manufacturer | Cypress Semiconductor | Cypress Semiconductor | Cypress Semiconductor |
| Product Category | F-RAM | F-RAM | F-RAM |
| RoHS | Y | Y | Y |
| Series | CY15B256J | CY15B256J | CY15B256J |
| Packaging | Tube | Tube | Reel |
| Brand | Cypress Semiconductor | Cypress Semiconductor | Cypress Semiconductor |
| Moisture Sensitive | Yes | Yes | Yes |
| Product Type | FRAM | FRAM | FRAM |
| Factory Pack Quantity | 194 | 194 | 2500 |
| Subcategory | Memory & Data Storage | Memory & Data Storage | Memory & Data Storage |
| Mounting Style | - | SMD/SMT | - |
| Package / Case | - | SOIC-8 | - |
| Memory Size | - | 256 kbit | - |
| Interface Type | - | Serial, 2-Wire, I2C | - |
| Organization | - | 32 k x 8 | - |
| Supply Voltage Min | - | 2 V | - |
| Supply Voltage Max | - | 3.6 V | - |
| Minimum Operating Temperature | - | - 40 C | - |
| Maximum Operating Temperature | - | + 85 C | - |
| Operating Supply Voltage | - | 3.3 V | - |
| Unit Weight | - | 0.019048 oz | - |