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Infineon Technologies S25FL256SAGMFIG03 — Memory (DRAM / SRAM / Flash / EEPROM)

S25FL256SAGMFIG03 256Mbit NOR Flash, SPI Quad I/O, 133 MHz

MPNS25FL256SAGMFIG03
Active

Infineon FL-S series, S25FL256SAGMFIG03, 256Mbit NOR Flash, SPI - Quad I/O interface, 133 MHz clock, 2.7V to 3.6V supply, -40°C to 85°C, 16-SOIC package.

$5.8400Ref. price · indicative, final on quote
Packaging16-SOIC (0.295", 7.50mm Width)
RoHSROHS3 Compliant
SeriesFL-S
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

S25FL256SAGMFIG03 specifications
ParameterValue
SeriesFL-S
Memory typeNon-Volatile
MountingSurface Mount
Supply voltage2.7V ~ 3.6V
Clock frequency133 MHz
Memory interfaceSPI - Quad I/O
Operating temperature-40°C ~ 85°C (TA)
PackageTape & Reel (TR) Cut Tape (CT)
TechnologyFLASH - NOR
Memory size256Mbit
Memory formatFLASH
Case16-SOIC (0.295\", 7.50mm Width)
Memory organization32M x 8

Product details

256 Mbit NOR Flash with Quad-SPI — what it brings to the board

It uses a SPI interface with Quad I/O support, clocked at 133 MHz for fast read throughput.

133 MHz Quad-SPI — read bandwidth for execute-in-place

The 133 MHz clock frequency on the Quad-SPI interface delivers a sustained read throughput that supports execute-in-place (XIP) from the Flash, reducing the need for a separate RAM buffer for firmware. For designs that shadow code to RAM at boot, the faster read speed shortens the startup time. The interface uses four I/O lines for data, so the PCB trace routing needs matched lengths on the four data lines to maintain signal integrity at this frequency.

The FL-S series is an established Infineon product line with broad distribution support.

Frequently asked questions

What is the difference between S25FL256SAGMFIG03 and S25FL128SAGMFIG03?

The primary difference is memory density: the S25FL256SAGMFIG03 offers 256 Mbit, while the S25FL128SAGMFIG03 is the 128 Mbit variant. Both share the same FL-S series, SPI Quad I/O interface, 133 MHz clock, supply range, and 16-SOIC package. The density choice depends on the firmware image size and data storage requirements.

Can S25FL256SAGMFIG03 replace S25FL256SAGMFIG01?

The S25FL256SAGMFIG01 is a sibling in the same FL-S series with identical 256 Mbit density, 133 MHz clock, and Quad-SPI interface. The suffix difference typically indicates packaging or temperature grade — the FIG03 is the Tape & Reel variant with industrial temperature range. Check the specific suffix details for your BOM; if the package and temperature grade match, it is a direct replacement.