Infineon Technologies S25FL512SAGMFMR13

Overview

S25FL512SAGMFMR13 from Infineon is a 512 Mb (64 MB) serial NOR flash memory with SPI Multi-I/O interface, 3.0 V core supply, and uniform 256-KB sector architecture. It supports Quad Read up to 52 MBps, on-chip ECC for single-bit error correction, AutoBoot execution at power-up, and operates across industrial (–40°C to +85°C) and automotive AEC-Q100 Grade 2 (–40°C to +105°C) temperature ranges.

For engineers reviewing the S25FL512SAGMFMR13 datasheet, S25FL512SAGMFMR13 pinout, S25FL512SAGMFMR13 application, or S25FL512SAGMFMR13 equivalent, key selection criteria include Quad DDR read performance (80 MBps), 100,000 program-erase cycles, OTP security array (1024 bytes), block/sector protection modes, and compatibility with S25FL-P family footprints and command sets.

Technical Context

This device implements Infineon's 65 nm MIRRORBIT™ technology with Eclipse™ architecture, enabling high-density nonvolatile storage with deterministic timing and low-latency random access. Its dual-voltage I/O (VIO = 1.65–3.6 V) decouples interface signaling from core logic, supporting mixed-voltage system integration while maintaining full SPI command set compliance-including extended 32-bit addressing and CFI/JEDEC SFDP parameter discovery.

The control logic integrates hardware-managed AutoBoot, configurable status register-based block protection, and Advanced Sector Protection (ASP) with password- or boot-code-controlled individual sector locking. All erase and program operations execute in-system without external high-voltage support, and internal ECC automatically corrects single-bit errors during read.

Key Specifications

Pinout & Package

Package: 16-pin SOIC (300 mil), 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 S25FL512SAGMFMR13, the Cypress alternative offers identical functionality in a different packaging variant, while the Winbond part trades automotive qualification and advanced security for lower voltage operation and reduced cost-making it suitable only for non-safety-critical, non-automotive designs.

Availability

S25FL512SAGMFMR13 is available at Aetrix Electronics and suitable for automotive ECU development, industrial PLC firmware deployment, and medical imaging system manufacturing requiring stable component supply and long-term lifecycle assurance.

Supply support for S25FL512SAGMFMR13 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 memory solutions, with global R&D and manufacturing infrastructure.

The S25FL-S series targets high-reliability embedded systems requiring automotive-grade qualification, secure firmware storage, and high-speed SPI interfaces-designed specifically for ECU, ADAS, and industrial control applications.

FAQ

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

The S25FL512SAGMFMR13 supports Quad DDR read operations at up to 80 MHz clock frequency, delivering 80 MBps effective throughput when VIO = VCC = 3.0–3.6 V. This is confirmed in the Performance Summary section of the official Infineon datasheet (Rev. *U, page 3). The device requires proper setup of the configuration register to enable DDR mode and uses both rising and falling edges of SCK for data capture.

Does this part support hardware write protection independent of software commands?

Yes. The WP# pin provides hardware-level write protection for status register bits and sector protection registers when asserted low. This protection remains active regardless of software state or command execution, and cannot be overridden by SPI commands. It is electrically isolated from the I/O function of the same pin (IO2) when Quad mode is disabled, ensuring robust physical lockdown capability.

Is the 256-KB sector size uniform across the entire 64 MB array?

Yes. The S25FL512SAGMFMR13 implements strictly uniform 256-KB sectors across its full 512 Mb address space-no variable or configurable sector sizes. This uniformity simplifies firmware update algorithms, wear leveling implementations, and flash translation layer design in embedded systems, and is explicitly stated in the Features section of the datasheet (page 1).

Can the OTP array be reprogrammed after initial programming?

No. The 1024-byte One-Time-Programmable (OTP) array is permanently programmed using high-voltage pulses and cannot be erased or rewritten. Once written, contents are retained for the full 20-year data retention period. Programming is performed via dedicated SPI commands (0x4B and 0x42), and the array supports byte-wise programming with no requirement for full-page writes.