Infineon Technologies S25FS256SAGBHI200

Overview

S25FS256SAGBHI200 from Infineon is a 256 Mb (32 MB) serial NOR flash memory with SPI Multi-I/O interface, 1.8 V supply, industrial-plus temperature grade (–40°C to +105°C), and BGA-24 6 × 8 mm package (FAC024 footprint). It supports Quad I/O, DDR Quad I/O read up to 80 MBps, 256-byte/512-byte page programming, hybrid/uniform sector erase, and integrated ECC for single-bit error correction.

For engineers reviewing the S25FS256SAGBHI200 datasheet, S25FS256SAGBHI200 pinout, S25FS256SAGBHI200 application, or S25FS256SAGBHI200 equivalent, key selection factors include its 1.8 V operation, AEC-Q100 Grade 2 qualification, SFDP/CFI support, OTP array, and dual-sector protection modes enabling secure boot and firmware update in resource-constrained embedded systems.

Technical Context

This device implements Infineon's Eclipse architecture with 65-nm MIRRORBIT™ technology, delivering deterministic low-latency XIP-capable reads via burst wrap and continuous modes. Its SPI-MIO interface supports standard SPI clock modes 0/3, extended addressing (24-/32-bit), and command subsets compatible with S25FL-P/S families.

The flash integrates hardware-managed ECC, program/erase suspend-resume, and configurable block protection using status register bits or advanced sector protection (ASP) with password-controlled access-enabling robust firmware integrity management in automotive and industrial control applications.

Key Specifications

Pinout & Package

Package: BGA-24, 6 × 8 mm, FAC024 footprint (4 × 6 ball array), Pb-free, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S25FS256SAGBHI200, the Cypress alternative trades automotive qualification for lower cost, while the Winbond part sacrifices DDR bandwidth and hardware ECC for broader vendor ecosystem support-making Infineon's device optimal for AEC-Q100–compliant, high-speed, secure boot designs.

Availability

S25FS256SAGBHI200 is available at Aetrix Electronics and suitable for automotive ADAS modules, industrial PLCs, medical imaging subsystems, and edge AI gateways requiring stable component supply, long-term lifecycle assurance, and AEC-Q100 compliance.

Supply support for S25FS256SAGBHI200 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, automotive microcontrollers, and secure memory solutions, with global R&D and manufacturing infrastructure.

The FS-S Flash family targets high-reliability embedded systems requiring secure, high-speed, low-voltage serial NOR flash-specifically designed for automotive, industrial, and medical applications demanding AEC-Q100 qualification and long-term data integrity.

FAQ

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

The S25FS256SAGBHI200 supports DDR Quad I/O read operations at up to 80 MHz, delivering 80 MBps effective throughput. This frequency is specified under industrial-plus temperature conditions and requires proper PCB layout with matched trace lengths and controlled impedance to maintain signal integrity.

Does this device support hardware reset via the IO3/RESET# pin?

Yes, the IO3/RESET# pin serves as an active-low hardware reset input. When asserted, it places the device into a known state, clears internal registers, and exits deep power-down mode. The pin also functions as IO3 in Quad I/O mode when reset is disabled via configuration register settings.

How is the 1024-byte OTP array used in secure boot implementations?

The OTP array stores immutable values such as public keys, root-of-trust hashes, or cryptographic seeds. Once programmed, it cannot be erased or rewritten, enabling hardware-rooted authentication of boot images. Access is restricted via status register lock bits and ASP password enforcement to prevent tampering during field deployment.

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

Yes, the S25FS256SAGBHI200 is fully backward-compatible with standard SPI mode 0 and mode 3. It supports normal and fast read commands using only IO0 and IO1, with no requirement to enable Dual or Quad I/O. All Multi-I/O functionality is optional and activated via specific instruction sequences and configuration register settings.