Infineon Technologies S25FL512SAGMFMG10

Overview

S25FL512SAGMFMG10 from Infineon is a 512 Mb (64 MB) serial NOR flash memory with SPI Multi-I/O interface, designed for embedded boot code and firmware storage in industrial and automotive systems. It supports Quad, Dual, and DDR read modes up to 80 MHz, features 256-KB uniform sectors, 100,000 program-erase cycles, and 20-year data retention. Its 3.0 V core with dual voltage I/O (1.65–3.6 V) enables compatibility with mixed-voltage SoC interfaces.

For engineers reviewing the S25FL512SAGMFMG10 datasheet, S25FL512SAGMFMG10 pinout, S25FL512SAGMFMG10 application, or S25FL512SAGMFMG10 equivalent, key selection criteria include Quad DDR read throughput (80 MBps), AutoBoot capability at power-up, OTP security (1024-byte array), AEC-Q100 Grade 2 qualification (–40°C to +105°C), and hardware/software block protection.

Technical Context

This FL-S series flash implements Infineon's 65 nm MIRRORBIT™ technology with Eclipse™ architecture, enabling high-density nonvolatile storage with single-bit ECC correction. It operates across three SPI clock modes (0 and 3), supports extended 32-bit addressing, and maintains command and footprint compatibility with prior S25FL-A/K/P families.

The device integrates dedicated control logic for AutoBoot execution, CFI-compliant configuration registers, and programmable sector protection via status register bits or advanced password-controlled ASP. Its dual supply architecture separates core (VCC: 2.7–3.6 V) and I/O (VIO: 1.65–3.6 V) domains to support legacy and low-voltage host interfaces.

Key Specifications

Pinout & Package

Package: 16-pin SOIC (300 mil), Pb-free, industrial-grade body.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S25FL512SDSMFMG10, this SOIC variant offers identical functionality with easier prototyping and thermal management; versus MX25L51245G, it adds automotive qualification, DDR performance, AutoBoot, and robust security-justifying its use in safety-critical and long-lifecycle deployments.

Availability

S25FL512SAGMFMG10 is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC firmware storage, and medical imaging device code hosting requiring stable component supply across extended product lifecycles.

Supply support for S25FL512SAGMFMG10 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.

This part belongs to the FL-S family of high-performance serial NOR flash memories, engineered specifically for reliable boot code storage and firmware execution in automotive, industrial, and medical systems demanding AEC-Q100 compliance and long-term data integrity.

FAQ

What is the maximum supported clock frequency for Quad DDR read operations?

The S25FL512SAGMFMG10 supports Quad DDR read at up to 80 MHz, delivering 80 MBps throughput when VIO = VCC = 3.0–3.6 V. This specification is validated per AC test conditions in the official Infineon datasheet (Rev. *U, Section 5.5), and requires proper impedance-controlled routing and termination to maintain signal integrity.

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

Yes, the RESET# pin provides asynchronous hardware reset functionality. When asserted low, it terminates all ongoing operations, clears internal state machines, and places the device into a known idle state. After release, the device remains in standby until CS# is asserted, and AutoBoot may trigger if enabled per configuration register settings.

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

The OTP array is accessed exclusively via dedicated One-Time-Program commands (0x4B and 0x42) and resides at fixed address 0x00000000 in the OTP address space. Once programmed, bits cannot be erased; write access is disabled after initial programming unless unlocked via specific unlock sequences defined in the datasheet's Section 9.7.

Can this flash operate with VIO = 1.8 V while VCC = 3.3 V?

Yes, the device supports independent VIO (1.65–3.6 V) and VCC (2.7–3.6 V) supplies. At VIO = 1.8 V and VCC = 3.3 V, it maintains full functionality including Quad Read (up to 66 MHz, 33 MBps) and standard SPI commands, enabling seamless integration with 1.8 V FPGAs or microcontrollers while preserving core logic performance.