Infineon Technologies S25FS128SDSBHB200

Overview

S25FS128SDSBHB200 from Infineon is a 128 Mb (16 MB) serial NOR flash memory IC with SPI Multi-I/O interface, 1.8 V supply, and industrial temperature grade (–40°C to +85°C). It supports Quad I/O, DDR Quad I/O read up to 80 MBps, 256/512-byte page programming, hardware ECC, and hybrid/uniform sector erase options for embedded firmware storage in microcontroller boot applications.

For engineers reviewing the S25FS128SDSBHB200 datasheet, S25FS128SDSBHB200 pinout, S25FS128SDSBHB200 application, or S25FS128SDSBHB200 equivalent, key selection criteria include SPI-MIO timing compliance, SFDP/CFI configuration support, OTP security array usage, hybrid sector layout flexibility, and AEC-Q100-qualified variants for automotive control units.

Technical Context

This device implements Infineon's Eclipse architecture with 65-nm MIRRORBIT™ technology, enabling high-speed Quad and DDR Quad I/O read modes while maintaining full backward compatibility with S25FL-P/S SPI command sets. Its dual-sector architecture supports both hybrid (eight 4-KB + one 32-KB sectors) and uniform (64-KB or 256-KB blocks) erase configurations.

The integrated hardware ECC engine performs single-bit error correction transparently during reads, and the 1024-byte OTP array enables secure boot code storage. Configuration is managed via SFDP v1.6 and CFI registers, allowing runtime discovery of timing parameters and protection settings without hard-coded initialization.

Key Specifications

Pinout & Package

Package: 8-pin WSON 6 × 5 mm (WND008), RoHS-compliant, moisture sensitivity level 3 (MSL3).

Key Features

Applications

Equivalent & Alternatives

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

Compared with S25FS128SDBHI200, the WSON-packaged S25FS128SDSBHB200 offers superior thermal performance and smaller footprint; versus MX25L12833FZNI-10G, it delivers 21% higher read bandwidth and standardized configuration via SFDP, simplifying driver portability across platforms.

Availability

S25FS128SDSBHB200 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot memory, and medical imaging device configuration requiring stable component supply and long-term lifecycle assurance.

Supply support for S25FS128SDSBHB200 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 memory solutions for industrial, automotive, and IoT applications.

The FS-S Flash product line delivers high-reliability, SPI-MIO-compatible NOR flash targeting mission-critical firmware storage in safety-aware systems, with emphasis on AEC-Q100 qualification, ECC robustness, and seamless migration from legacy S25FL families.

FAQ

What is the maximum supported SPI clock frequency for DDR Quad I/O mode?

The S25FS128SDSBHB200 supports DDR Quad I/O read operations at up to 80 MHz clock frequency, delivering 80 MBps effective bandwidth. This is specified under VCC = 1.8 V and TA = –40°C to +85°C, with setup/hold timing verified per JESD22-A108 thermal cycling standards.

Does this part support hardware reset via the IO3 pin?

Yes - when not configured as I/O3 in Quad mode, the IO3 pin functions as an active-low hardware reset (RESET#) that forces the device into power-on reset state, clearing internal registers and terminating ongoing commands. This function is electrically compatible with 1.8 V logic levels.

How is the 1024-byte OTP array accessed and protected?

The OTP array is accessed via dedicated JEDEC-standard One-Time Program commands (0x4B, 0x42). Once programmed, bits cannot be erased; protection is enforced by status register lock bits and hardware fuse integrity checks. Programming requires VPP = 3.0 V applied externally during the OTP write sequence.

Can this device operate in standard SPI mode without enabling Multi-I/O features?

Yes - the S25FS128SDSBHB200 defaults to standard SPI Mode 0 operation on power-up. All Multi-I/O features (Dual/Quad/DDR) require explicit enablement via Status Register writes and are fully backward-compatible with legacy S25FL-A/K/P/S command subsets.