Infineon Technologies S25FS128SAGBHB200

Overview

S25FS128SAGBHB200 from Infineon is a 128 Mb (16 MB) serial NOR flash memory with SPI Multi-I/O interface, 1.8 V supply, industrial temperature grade (–40°C to +85°C), and WSON 6 × 8 mm package. It supports Quad I/O, DDR Quad I/O read up to 80 MBps, 256-byte/512-byte page programming, hardware ECC, and hybrid/uniform sector erase options. Used for firmware storage in embedded controllers requiring XIP-capable, high-reliability nonvolatile memory.

For engineers reviewing the S25FS128SAGBHB200 datasheet, S25FS128SAGBHB200 pinout, S25FS128SAGBHB200 application, or S25FS128SAGBHB200 equivalent, key selection criteria include SPI-MIO timing compliance, SFDP/CFI configuration support, OTP array usage, hybrid sector layout flexibility, and AEC-Q100 grade compatibility for automotive control modules.

Technical Context

This device implements Infineon's Eclipse architecture with 65-nm MIRRORBIT™ technology, enabling true XIP operation via Continuous Read mode and Burst Wrap addressing. It supports both standard SPI (modes 0/3) and enhanced protocols including QPI and DDR Quad I/O, with configurable 24-/32-bit addressing.

Internal hardware ECC provides single-bit error correction without host intervention, while program/erase suspend-resume enables concurrent background operations. Sector protection combines status register bits, hardware WP#, and Advanced Sector Protection (ASP) with password-controlled access to boot sectors.

Key Specifications

Pinout & Package

Package: WSON 6 × 8 mm (WNH008), 8-lead, Pb-free, moisture sensitivity level 3 (MSL3), thermal pad on underside for PCB heat dissipation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar serial NOR flash applications.

Compared with S25FL128SAGMFI00, this part offers assured long-term availability and updated documentation; versus W25Q128JVSIM, it delivers hardware ECC, DDR performance, and ASP-critical for safety-aware and high-throughput embedded systems.

Availability

S25FS128SAGBHB200 is available at Aetrix Electronics and suitable for industrial PLCs, automotive ADAS ECUs, medical imaging subsystems, and smart grid communication modules requiring stable component supply, guaranteed 20-year data retention, and AEC-Q100-compatible qualification.

Supply support for S25FS128SAGBHB200 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a German semiconductor manufacturer specializing in power management, sensing, and connectivity solutions for automotive, industrial, and power systems markets.

The FS-S Flash family targets high-reliability embedded applications demanding XIP capability, robust data integrity, and flexible security features-designed specifically for automotive boot code, industrial firmware, and safety-critical configuration storage.

FAQ

Does S25FS128SAGBHB200 support 3.3 V I/O signaling?

No. This device operates exclusively at 1.7–2.0 V VCC and uses 1.8 V I/O logic levels. It is not 3.3 V tolerant. Connecting to a 3.3 V SPI host requires level-shifting circuitry on all signal lines (CS#, SCK, IO0–IO3) to avoid damage and ensure reliable communication.

Can the OTP array be reprogrammed after initial programming?

No. The 1024-byte One-Time Programmable array is permanently programmed using high-voltage pulses. Once a bit is set to '0', it cannot be changed back to '1'. It is intended for immutable data such as cryptographic keys, device identifiers, or calibration constants locked at manufacturing or final test.

What is the purpose of the RESET# pin beyond hardware reset?

In Quad I/O mode, pin 8 functions as IO3-the fourth bidirectional data line. During normal operation with CS# active, it carries data; during reset assertion (low pulse ≥20 ns), it forces the device into hardware reset state, clearing internal registers and terminating any ongoing command sequence.

Is the WSON 6 × 8 mm package RoHS compliant and halogen-free?

Yes. The WNH008 package is Pb-free and fully compliant with RoHS Directive 2011/65/EU and JEDEC JS709C halogen-free requirements. The marking "G" in the part number suffix confirms green packaging; material declarations are available in Infineon's Eco Reports (document number 002-00368 Rev. *O).