Infineon Technologies S25FS128SDSBHM200

Overview

S25FS128SDSBHM200 from Infineon is a 128 Mb (16 MB) serial NOR flash memory IC with SPI Multi-I/O interface, 1.8 V supply, industrial temperature grade (–40°C to +85°C), and WSON 6 × 5 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 in boot code storage for embedded microcontrollers requiring fast XIP execution and robust data retention.

For engineers reviewing the S25FS128SDSBHM200 datasheet, S25FS128SDSBHM200 pinout, S25FS128SDSBHM200 application, or S25FS128SDSBHM200 equivalent, key selection criteria include SPI-MIO timing compliance, 1.8 V VCC tolerance, hybrid sector architecture for firmware partitioning, OTP array for secure configuration, 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-density NOR flash with deterministic latency for execute-in-place (XIP) operation. It supports both standard SPI (modes 0/3) and enhanced Multi-I/O protocols including Dual/Quad I/O and DDR Quad I/O, with SFDP and CFI for runtime configuration discovery.

The internal ECC engine performs single-bit error correction on-the-fly during read operations, while program/erase suspend-resume functions enable real-time interrupt handling. Sector protection is implemented via status register bits, hardware WP#, and advanced password-controlled ASP for individual sector lockdown.

Key Specifications

Pinout & Package

Package: WSON 6 × 5 mm, 8-pin, exposed thermal pad (pin 8 = VSS), Pb-free, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S25FL128SAGMFI000 and W25Q128JVSIM, the S25FS128SDSBHM200 delivers higher bandwidth via DDR Quad I/O, built-in ECC for functional safety compliance, and hybrid sector flexibility-making it optimal for industrial and automotive boot memory where reliability and deterministic timing are mandatory.

Availability

S25FS128SDSBHM200 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot memory, and edge AI gateway firmware requiring stable component supply and long-term lifecycle support.

Supply support for S25FS128SDSBHM200 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, sensor, and memory solutions for industrial, automotive, and IoT applications.

The FS-S Flash family targets high-reliability embedded systems needing fast, secure, and long-life non-volatile storage with advanced protection and multi-I/O performance.

FAQ

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

The S25FS128SDSBHM200 supports DDR Quad I/O operation at up to 80 MHz clock frequency, delivering 80 MBps effective read bandwidth. This is specified under AC characteristics section 6.5 of the datasheet and validated across the full industrial temperature range with proper signal integrity design.

Does this part include hardware error correction, and how is it implemented?

Yes, it integrates an on-die hardware ECC engine that automatically detects and corrects single-bit errors during read operations. The ECC operates transparently without CPU intervention and uses BCH encoding; no external logic or firmware overhead is required for basic error resilience.

Can the hybrid sector architecture be configured to place small sectors at the top or bottom of the address space?

Yes, the device allows configuration of the hybrid sector map to locate the eight 4-KB and one 32-KB sectors either at the top or bottom of the address space via status register settings. This enables flexible bootloader placement while preserving large uniform sectors for application code.

Is the WSON 6 × 5 mm package thermally enhanced, and what is the recommended PCB layout for thermal management?

Yes, the WSON package includes an exposed thermal pad (pin 8 = VSS) that must be soldered to a dedicated copper pour on the PCB. Infineon recommends a minimum 10 mm² thermal pad connected via ≥4 thermal vias (0.3 mm diameter) to inner ground planes to maintain junction temperature below 105°C at full read load.