Infineon Technologies S25FS064SDSBHM023

Overview

S25FS064SDSBHM023 from Infineon is a 64 Mb (8 MB) serial NOR flash memory IC with SPI Multi-I/O interface, operating at 1.8 V supply. It implements MIRRORBIT™ 65-nm technology with ECLIPSE architecture, supports DDR Quad I/O read up to 80 MBps, features hardware ECC, hybrid/uniform sector erase options, and AEC-Q100 Grade 2 automotive qualification (–40°C to +105°C). Used in automotive ADAS ECUs for firmware storage and boot code execution.

For engineers reviewing the S25FS064SDSBHM023 datasheet, S25FS064SDSBHM023 pinout, S25FS064SDSBHM023 application, or S25FS064SDSBHM023 equivalent, key selection criteria include 1.8 V operation, DDR Quad I/O throughput, OTP array size, sector protection granularity, and AEC-Q100 Grade 2 temperature compliance.

Technical Context

This device implements a serial flash architecture with dual- and quad-mode command subsets compatible with S25FL1-K/S25FL-P/S25FL-S families, enabling drop-in migration. It supports both legacy SPI and QPI protocols, 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 enables concurrent background operations. Sector protection uses status register bits plus Advanced Sector Protection (ASP) with password-controlled access.

Key Specifications

Pinout & Package

Package: 8-lead SOIC 208 mil (SOC008), Pb-free, industrial footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S25FS064SDSBHM023, the S25FS064SDSBHI023 sacrifices automotive qualification for lower cost, while the S25FL064L0XMFI001 lacks DDR, ECC, and ASP-making it inadequate for new safety-critical designs requiring fast, secure, and robust firmware storage.

Availability

S25FS064SDSBHM023 is available at Aetrix Electronics and suitable for automotive ADAS ECUs, industrial PLCs, medical imaging devices, and avionics display systems requiring stable component supply across extended product lifecycles.

Supply support for S25FS064SDSBHM023 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 automotive, industrial, and IoT markets.

The S25FS-S family targets high-reliability embedded systems requiring fast, secure, and AEC-Q100-qualified serial flash-designed specifically for automotive firmware, boot code, and safety-critical data logging.

FAQ

What is the function of the IO3/RESET# pin?

The IO3/RESET# pin serves dual roles: as an asynchronous hardware reset input (active-low) and as the fourth I/O line (IO3) in Quad and DDR Quad I/O command sequences. During normal operation, it enables full quad-data-width transfers; when asserted, it forces the device into hardware reset state regardless of ongoing operations.

Does this part support Execute-in-Place (XIP) operation?

Yes, S25FS064SDSBHM023 supports continuous read mode for XIP execution. The device delivers sustained burst reads with wrap-around addressing and low latency, enabling microcontrollers to execute code directly from flash without copying to RAM-critical for memory-constrained automotive MCUs.

How does the hybrid sector erase option work?

The hybrid sector option configures the top or bottom of the address space with eight 4 KB sectors and one 32 KB sector, while the remainder uses uniform 64 KB sectors. This layout allows fine-grained updates (e.g., patching bootloader sections) without erasing large blocks, preserving data integrity during field firmware upgrades.

Is the OTP array reprogrammable?

No, the 1024-byte OTP (One-Time Programmable) array is permanently programmed using high-voltage pulses and cannot be erased or rewritten. It is intended for immutable data such as cryptographic keys, device identifiers, or calibration constants that must persist across full device lifecycle.