Infineon Technologies S25FS064SDSMFB010

Overview

S25FS064SDSMFB010 from Infineon is a 64 Mb (8 MB) serial NOR flash memory with SPI Multi-I/O interface, operating at 1.8 V supply. It implements MIRRORBIT™ technology with ECLIPSE architecture, supports DDR Quad I/O read up to 80 MBps, features hardware ECC for single-bit correction, and offers hybrid sector erase (eight 4 KB + one 32 KB sectors) alongside uniform 64 KB/256 KB blocks - deployed in industrial and automotive systems requiring reliable nonvolatile code storage.

For engineers reviewing the S25FS064SDSMFB010 datasheet, S25FS064SDSMFB010 pinout, S25FS064SDSMFB010 application, or S25FS064SDSMFB010 equivalent, key selection considerations include its 1.7–2.0 V supply range, AEC-Q100 Grade 2 qualification (–40°C to +105°C), QPI mode support, SFDP/CFI configuration compliance, and OTP array for secure boot code storage.

Technical Context

This device operates as a serial NOR flash memory with dual- and quad-mode SPI command sets, supporting both legacy SPI and Quad Peripheral Interface (QPI) protocols. Its internal architecture integrates a 65-nm MIRRORBIT™ array with dedicated ECC logic, burst wrap and continuous XIP read modes, and programmable sector protection via status register bits and Advanced Sector Protection (ASP).

The flash supports extended addressing (24-/32-bit), DDR clocking with DLP timing, and configurable erase granularity - including suspend/resume during program/erase operations. It delivers 100,000 program-erase cycles and 20-year data retention under industrial temperature conditions.

Key Specifications

Pinout & Package

Package: 24-ball FBGA (6 × 8 mm, 5 × 5 ball array, FAB024 footprint), 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 S25FL064L and W25Q64JV, the S25FS064SDSMFB010 uniquely combines AEC-Q100 Grade 2 qualification, DDR Quad I/O throughput, on-die ECC, and ASP - making it the sole choice for safety-critical, high-reliability automotive and industrial firmware storage where data integrity and secure update capability are mandatory.

Availability

S25FS064SDSMFB010 is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLCs, medical imaging bootloaders, and smart energy meter firmware storage requiring stable component supply across extended product lifecycles.

Supply support for S25FS064SDSMFB010 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 ICs, and secure microcontrollers, with global R&D and manufacturing infrastructure.

The S25FS064SDSMFB010 belongs to Infineon's FS-S family of high-reliability serial NOR flash memories, designed specifically for automotive and industrial applications demanding AEC-Q100 qualification, long-term data retention, and robust security features.

FAQ

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

The S25FS064SDSMFB010 supports DDR Quad I/O operation up to 80 MHz, delivering 80 MBps effective read bandwidth. This is confirmed in Table 1 of the official datasheet (Rev. *I, p.2), and requires proper DLP timing alignment per Section 5.5.3. The device does not support DDR above 80 MHz in any configuration.

Does this part support both 24-bit and 32-bit addressing modes?

Yes, the S25FS064SDSMFB010 supports extended addressing with configurable 24-bit or 32-bit address modes, as documented in Section 2 and Table 6-1 of the datasheet. The mode is selected via configuration register bits and affects how the 64 MB address space is accessed, especially relevant for systems migrating from smaller-density flashes.

Is hardware reset (RESET#) required for normal operation?

No, hardware reset via the RESET# pin is optional and used only to exit deep power-down mode or perform a warm reset. Normal power-on initialization occurs automatically; the pin functions as IO3 in active transfer modes unless actively driven low for reset assertion.

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

The OTP array is accessed via dedicated SPI commands (e.g., RDSCUR, WRSR) and locked permanently after programming using status register bits. Once programmed, it cannot be erased or rewritten. Access control is enforced by hardware - no software override is possible, ensuring immutable storage of cryptographic keys or calibration constants.