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| PartNumber | FM25640B-G | FM25640B-G2TR | FM25640B-G2 |
| Description | F-RAM 64Kb Serial SPI 5V FRAM | IC MEMORY 64KB NONVOL 8SOIC | IC MEMORY 64KB NONVOL 8SOIC |
| Manufacturer | Cypress Semiconductor | - | - |
| Product Category | F-RAM | - | - |
| RoHS | Y | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | SOIC-8 | - | - |
| Memory Size | 64 kbit | - | - |
| Interface Type | SPI | - | - |
| Organization | 8 k x 8 | - | - |
| Supply Voltage Min | 4.5 V | - | - |
| Supply Voltage Max | 5.5 V | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Series | FM25640B-G | - | - |
| Packaging | Tube | - | - |
| Access Time | 10 ms | - | - |
| Type | Nonvolatile RAM | - | - |
| Brand | Cypress Semiconductor | - | - |
| Moisture Sensitive | Yes | - | - |
| Operating Supply Voltage | 5 V | - | - |
| Product Type | FRAM | - | - |
| Factory Pack Quantity | 194 | - | - |
| Subcategory | Memory & Data Storage | - | - |
| Unit Weight | 0.019048 oz | - | - |