It speaks SPI with Quad I/O, hitting a 133 MHz clock rate that yields a sustained read throughput well beyond what a standard SPI part delivers — useful when the MCU's internal Flash is too small or too slow for a boot image or OTA staging area.
S25FL128SAGMFVG03 NOR Flash, 128 Mbit, 133 MHz, Quad SPI
MPNS25FL128SAGMFVG03
Active
Cypress FL-S S25FL128SAGMFVG03, 128Mbit NOR Flash, SPI Quad I/O interface, 133 MHz clock, 2.7V-3.6V supply, -40°C to 105°C, 16-SOIC package.
$3.2052Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Series | FL-S |
| Memory type | Non-Volatile |
| Mounting | Surface Mount |
| Supply voltage | 2.7V ~ 3.6V |
| Clock frequency | 133 MHz |
| Memory interface | SPI - Quad I/O |
| Operating temperature | -40°C ~ 105°C (TA) |
| Package | Tape & Reel (TR) |
| Technology | FLASH - NOR |
| Memory size | 128Mbit |
| Memory format | FLASH |
| Case | 16-SOIC (0.295\", 7.50mm Width) |
| Memory organization | 16M x 8 |
Product details
Frequently asked questions
What is the closest pin-compatible alternative to the S25FL128SAGMFVG03?
The base product number is S25FL128, and the FL-S family includes multiple density and speed variants in the same 16-SOIC footprint. A pin-compatible alternative would be another FL-S part with the same 16-SOIC package and Quad SPI interface, but the evidence does not list a specific cross-reference. Verify pin compatibility against the datasheet before substituting.