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Infineon Technologies S25FS128SAGNFI101 — DC-DC Power Modules

S25FS128SAGNFI101 NOR Flash, 128 Mbit, SPI Quad I/O, 133 MHz

MPNS25FS128SAGNFI101
End of Life

Cypress FS-S series S25FS128SAGNFI101, 128 Mbit NOR Flash, SPI Quad I/O and QPI interface, 133 MHz clock, 1.7 V–2.0 V supply, -40°C to 85°C, 8-WSON (5x6) surface-mount package.

$4.08Ref. price · indicative, final on quote
Infineon Technologies S25FS128SAGNFI101 datasheet (PDF)
Packaging8-WDFN Exposed Pad
RoHSROHS3 Compliant
SeriesFS-S
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

S25FS128SAGNFI101 specifications
ParameterValue
SeriesFS-S
Memory typeNon-Volatile
MountingSurface Mount
Supply voltage1.7V ~ 2V
Clock frequency133 MHz
Memory interfaceSPI - Quad I/O, QPI
Operating temperature-40°C ~ 85°C (TA)
PackageTube
TechnologyFLASH - NOR
Memory size128Mbit
Memory formatFLASH
Case8-WDFN Exposed Pad
Memory organization16M x 8

Product details

128 Mbit NOR Flash with Quad-SPI at 133 MHz — bus margin for XIP

It uses a SPI interface with Quad I/O and QPI support, clocked at 133 MHz.

Supply rail and temperature — what fits

The supply is 1.7 V to 2.0 V — a 1.8 V ±10% rail is the natural home. If your board already runs a 3.3 V SPI bus, you'll need a level shifter or a different part from the FL-S series (which runs at 2.7 V to 3.6 V).

Housed in an 8-WDFN exposed-pad package, supplier device package 8-WSON (5x6 mm). Surface-mount only.

ROHS3 compliant per. No official second source is recorded in the ledger, but the FL-S series sibling S25FL128SAGNFI011 is a pin-compatible 128 Mbit part that runs on a 2.7 V to 3.6 V supply — a drop-in if you can tolerate the higher voltage rail.

Frequently asked questions

Is S25FS128SAGNFI101 obsolete or end-of-life?

No. The lifecycle record shows an Active status with no end-of-life notice. It can be specified into new production BOMs without a last-time-buy contingency.

What is a suitable equivalent or cross-reference for S25FS128SAGNFI101?

The Cypress S25FL128SAGNFI011 is a pin-compatible 128 Mbit NOR Flash in the same 8-WSON package, but it runs on a 2.7 V to 3.6 V supply. If your board uses a 3.3 V SPI bus, that part is a direct footprint swap. For a higher-density option, the S25FS512SAGNFI011 offers 512 Mbit in the same package and supply range.

Is S25FS128SAGNFI101 lead-free and RoHS compliant?

Yes. The lifecycle record confirms ROHS3 compliance.