Infineon Technologies S25FL512SAGMFVR10

Overview

S25FL512SAGMFVR10 from Infineon is a 512 Mb (64 MB) serial NOR flash memory IC with SPI Multi-I/O interface, designed for boot code storage and firmware execution in embedded systems. It supports Quad, Dual, and DDR read modes up to 80 MHz (80 MBps), features 256-KB uniform sectors, 100,000 program-erase cycles, and 20-year data retention. Used in industrial controllers requiring fast, reliable nonvolatile code storage.

For engineers reviewing the S25FL512SAGMFVR10 datasheet, S25FL512SAGMFVR10 pinout, S25FL512SAGMFVR10 application, or S25FL512SAGMFVR10 equivalent, key selection criteria include SPI Multi-I/O timing compliance, AEC-Q100 Grade 2 qualification, OTP security configuration, and uniform sector erase performance under 2.7–3.6 V core supply.

Technical Context

This device implements Infineon's 65 nm MIRRORBIT™ Flash technology with Eclipse™ architecture, enabling high-density, low-power serial NOR operation. It integrates hardware ECC for single-bit error correction and supports both standard SPI (modes 0/3) and DDR SPI protocols with 32-bit addressing.

The control logic includes configurable block protection via status register bits and advanced sector protection (ASP) with password- or boot-code-based individual sector locking. I/O voltage independence (1.65–3.6 V) allows interoperability with diverse host MCU I/O domains while maintaining full read/write functionality.

Key Specifications

Pinout & Package

Package: 16-pin SOIC (300 mil), Pb-free, industrial temperature range (–40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with S25FL512SAGMFVR10, the FAB024 variant offers identical functionality in compact BGA form, while the Winbond part trades Infineon's security and reliability features for lower unit cost and simpler command compatibility - making it unsuitable for industrial or automotive boot use cases.

Availability

S25FL512SAGMFVR10 is available at Aetrix Electronics and suitable for industrial automation, automotive ADAS modules, and medical imaging systems requiring stable component supply across extended product lifecycles.

Supply support for S25FL512SAGMFVR10 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, sensing, and memory solutions for industrial, automotive, and IoT applications.

The FL-S family targets high-reliability embedded systems needing fast, secure, and long-life serial NOR flash - optimized for boot code execution, firmware updates, and configuration storage in harsh environments.

FAQ

What is the maximum clock frequency supported in DDR mode?

The S25FL512SAGMFVR10 supports Fast Read DDR, Dual Read DDR, and Quad Read DDR at up to 80 MHz with VIO = VCC = 3.0–3.6 V, delivering 20 MBps, 40 MBps, and 80 MBps respectively. DDR operation requires proper setup/hold timing and matched trace lengths for SI/SO/IO2/IO3 lines.

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

Yes, the RESET# pin provides asynchronous hardware reset functionality. When asserted low, it clears internal state machines and resets all registers to default values. The device exits reset on the rising edge and requires CS# assertion before accepting new commands.

Can the 1024-byte OTP array be reprogrammed after initial write?

No - the OTP (One-Time Programmable) array is permanently programmed and cannot be erased or rewritten. Each byte can be changed from FFh to any other value only once; subsequent writes have no effect. This ensures cryptographic keys or calibration data remain immutable after provisioning.

Is VIO supply mandatory, or can it be tied to VCC?

VIO may be tied to VCC if the host MCU operates at the same voltage (e.g., 3.3 V), but it must be supplied independently when interfacing with 1.8 V logic. The I/O buffers are fully functional across 1.65–3.6 V, and separate VIO routing is required for mixed-voltage designs to meet AC timing specifications.