| PartNumber | CY15B104QN-50SXA | CY15B104QN-50SXIES | CY15B104QN-20LPXCES |
| Description | F-RAM FRAM Excelon Auto | F-RAM 4Mb Indutrial Temp. 50MHz SPI 1.8-3.6V | F-RAM 4Mb FRAAM 20MHz SPI 1.8-3.6V |
| Manufacturer | Cypress Semiconductor | Cypress Semiconductor | Cypress Semiconductor |
| Product Category | F-RAM | F-RAM | F-RAM |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | SOIC-8 | SOIC-8 | GQFN-8 |
| Memory Size | 4 Mbit | 4 Mbit | 4 Mbit |
| Interface Type | SPI | SPI | SPI |
| Organization | 512 k x 8 | 512 k x 8 | 512 k x 8 |
| Supply Voltage Min | 1.8 V | 1.8 V | 1.8 V |
| Supply Voltage Max | 3.6 V | 3.6 V | 3.6 V |
| Minimum Operating Temperature | - 40 C | - 40 C | 0 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 70 C |
| Series | CY15B104 | CY15B104 | CY15B104 |
| Brand | Cypress Semiconductor | Cypress Semiconductor | Cypress Semiconductor |
| Moisture Sensitive | Yes | - | - |
| Operating Supply Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Product Type | FRAM | FRAM | FRAM |
| Factory Pack Quantity | 188 | - | - |
| Subcategory | Memory & Data Storage | Memory & Data Storage | Memory & Data Storage |
| Tradename | Excelon | Excelon | Excelon |