Cypress FL-S series S25FL128SDSMFBG01, 128Mbit NOR Flash memory, SPI - Quad I/O interface, 80 MHz clock, 2.7V-3.6V supply, -40°C to 105°C, 16-SOIC package.
| Parameter | Value |
|---|---|
| Series | FL-S |
| Memory type | Non-Volatile |
| Mounting | Surface Mount |
| Supply voltage | 2.7V ~ 3.6V |
| Clock frequency | 80 MHz |
| Memory interface | SPI - Quad I/O |
| Operating temperature | -40°C ~ 105°C (TA) |
| Package | Tube |
| Technology | FLASH - NOR |
| Memory size | 128Mbit |
| Memory format | FLASH |
| Case | 16-SOIC (0.295\", 7.50mm Width) |
| Memory organization | 16M x 8 |
The package is a 16-SOIC with a 7.50 mm body width and 0.295 inch pitch, surface-mount. The 16-SOIC is a common footprint for serial NOR Flash, so it usually drops onto an existing land pattern without a board spin.
If obsolescence is announced, the FL-S series includes other 128 Mbit Quad-SPI parts in the same 16-SOIC footprint, but a direct pin-compatible replacement would need to be confirmed from a future Cypress/Infineon cross-reference. For now, the active status means no replacement is required.
No special programming voltage is needed — the same 3.3 V rail that powers the MCU also powers the Flash. The programming algorithm follows the standard NOR Flash command set for the FL-S family; any programmer that supports Cypress FL-S series Quad-SPI parts will handle it.
The suffix difference (MFBG01 vs MFB001) typically indicates a minor revision or packaging variant, but the electrical and footprint compatibility should be verified against the respective datasheets. In most 3.3 V SPI designs they are interchangeable.