Infineon Technologies S25FL512SAGBHIC10

Overview

S25FL512SAGBHIC10 from Infineon is a 512 Mb (64 MB) serial NOR flash memory with SPI Multi-I/O interface, 3.0 V core supply, uniform 256-KB sectors, and integrated hardware ECC. It supports Quad Read up to 52 MBps, AutoBoot at power-up, and operates across industrial temperature (–40°C to +85°C) in SO16 package. Used for firmware storage in embedded controllers and boot code execution in industrial gateways.

For engineers reviewing the S25FL512SAGBHIC10 datasheet, S25FL512SAGBHIC10 pinout, S25FL512SAGBHIC10 application, or S25FL512SAGBHIC10 equivalent, key selection criteria include Quad DDR read speed (80 MBps), 100,000 program-erase cycles, OTP security (1024-byte array), sector protection granularity, and AEC-Q100 Grade 3 qualification for automotive control modules.

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 command execution. Its dual-voltage I/O (VIO = 1.65–3.6 V) decouples interface signaling from core logic, supporting mixed-voltage system integration.

The SPI interface supports all four clock modes (CPOL/CPHA 0/0 and 1/1), DDR operation, and extended 32-bit addressing-enabling seamless migration from legacy S25FL-A/K/P families. CFI and JEDEC JESD216 SFDP tables provide standardized configuration discovery for bootloader compatibility.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with S25FL512SAGBHIC10, the FAB024 BGA variant offers identical functionality in smaller footprint but demands retooling, while the Winbond part sacrifices critical security and boot features for lower unit cost-making it unsuitable for safety-certified or field-updatable systems.

Availability

S25FL512SAGBHIC10 is available at Aetrix Electronics and suitable for industrial PLCs, automotive ADAS ECUs, medical imaging subsystems, and smart grid communication modules requiring stable component supply, long-term lifecycle assurance, and AEC-Q100 qualification.

Supply support for S25FL512SAGBHIC10 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 leader specializing in power systems, sensors, and secure microcontrollers, with strong focus on automotive, industrial, and IoT applications.

The S25FL-S family targets high-reliability embedded systems needing secure, fast, and standards-compliant serial flash-designed specifically for boot-critical roles in safety-aware platforms.

FAQ

What is the maximum clock frequency supported in DDR mode?

The S25FL512SAGBHIC10 supports Fast Read DDR, Dual Read DDR, and Quad Read DDR at up to 80 MHz clock frequency, delivering effective throughput of 20 MBps, 40 MBps, and 80 MBps respectively-measured with VIO = VCC = 3.0–3.6 V. This DDR capability is enabled only when configured via status register bit SR3[1], and requires controller support for double-data-rate sampling on both clock edges.

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

Yes. The WP# pin provides hardware-based write protection: when asserted low, it locks the status register and prevents program/erase commands to protected sectors-even if software issues an unlock sequence. This function remains active regardless of VIO voltage level and persists across power cycles, making it ideal for protecting boot sectors in tamper-resistant designs.

How does AutoBoot operate during power-on reset?

AutoBoot executes a preconfigured read command (Normal or Quad) from a user-defined 32-bit address immediately after power stabilization and internal reset completion. The target address and command type are stored in nonvolatile configuration registers (CR2 and CR3), and activation is controlled by the AUTOBOOT_EN bit. No host intervention is required-enabling zero-latency boot initiation in headless systems.

Is the 1024-byte OTP array one-time programmable or reprogrammable?

The 1024-byte OTP (One-Time Programmable) array is permanently programmable: each bit can be changed from '1' to '0' only once, and cannot be reversed. Programming is performed via dedicated OTP Program commands and verified using OTP Read commands. Once written, contents survive power loss, reset, and temperature extremes-making it suitable for storing cryptographic keys, device serial numbers, or calibration constants.