| PartNumber | FM25040B-G | FM25040B-GA1 | FM25040B-GA |
| Description | F-RAM 4Kb Serial SPI 5V FRAM | IC FRAM 4K SPI 14MHZ 8SOIC F-RAM | IC FRAM 4K SPI 14MHZ 8SOIC F-RAM |
| Manufacturer | Cypress Semiconductor | - | Ramtron |
| Product Category | F-RAM | - | Memory |
| RoHS | Y | - | - |
| Mounting Style | SMD/SMT | - | SMD/SMT |
| Package / Case | SOIC-8 | - | - |
| Memory Size | 4 kbit | - | 4K (512 x 8) |
| Interface Type | SPI | - | SPI |
| Organization | 512 x 8 | - | 512 x 8 bit |
| Supply Voltage Min | 4.5 V | - | - |
| Supply Voltage Max | 5.5 V | - | - |
| Minimum Operating Temperature | - 40 C | - | - 40 C |
| Maximum Operating Temperature | + 85 C | - | + 125 C |
| Series | FM25040B-G | - | F-RAM |
| Packaging | Tube | - | Tube |
| Brand | Cypress Semiconductor | - | - |
| Moisture Sensitive | Yes | - | - |
| Operating Supply Voltage | 5 V | - | 5 V |
| Product Type | FRAM | - | - |
| Factory Pack Quantity | 194 | - | - |
| Subcategory | Memory & Data Storage | - | - |
| Unit Weight | 0.019048 oz | - | 0.019048 oz |
| Operating Temperature Range | - | - | - 40 C to + 125 C |
| Package Case | - | - | SOIC-8 |
| Operating Temperature | - | - | -40°C ~ 125°C (TA) |
| Interface | - | - | SPI Serial |
| Voltage Supply | - | - | 4.5 V ~ 5.5 V |
| Supplier Device Package | - | - | 8-SOIC |
| Memory Type | - | - | FRAM (Ferroelectric RAM) |
| Speed | - | - | 14MHz |
| Format Memory | - | - | RAM |
| Supply Voltage Max | - | - | 5.5 V |
| Supply Voltage Min | - | - | 4.5 V |