Infineon Technologies S25FL128SAGBHIC10

Overview

S25FL128SAGBHIC10 from Infineon is a 128 Mb (16 MB) serial NOR flash memory with SPI Multi-I/O interface, designed for high-reliability military applications requiring extended temperature operation (-55°C to +125°C). It features 3.0 V core supply (2.7–3.6 V), dual- and quad-I/O read modes up to 80 MBps (Quad DDR at 80 MHz), 256-byte or 512-byte page programming, and hardware ECC for single-bit error correction.

For engineers reviewing the S25FL128SAGBHIC10 datasheet, S25FL128SAGBHIC10 pinout, S25FL128SAGBHIC10 application, or S25FL128SAGBHIC10 equivalent, this device supports AutoBoot execution, Common Flash Interface (CFI) configuration, hybrid/uniform sector erase options, and advanced security via 1024-byte OTP array and individual sector protection.

Technical Context

This SPI Multi-I/O flash implements Eclipse architecture with 65-nm MIRRORBIT™ technology, supporting SPI clock polarity/phase modes 0 and 3, DDR read capability, and extended addressing (24- or 32-bit). Its command set maintains footprint and software compatibility with prior S25FL-A/K/P families while introducing Quad Input Page Programming (QPP) for low-clock systems.

The device integrates dual power domains: core supply (VCC = 2.7–3.6 V) and versatile I/O supply (VIO = 1.65–3.6 V), enabling interoperability with mixed-voltage host controllers. Sector protection is implemented via status register bits and Advanced Sector Protection (ASP), controllable by boot code or password.

Key Specifications

Pinout & Package

Package: 24-ball FBGA (FAB024, 5 × 5 mm, 0.5 mm pitch), Pb-free, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MX25L12833FZNI-10G, S25FL128SAGBHIC10 delivers military-grade reliability, DDR bandwidth, and hardware security - critical for mission-critical firmware. Against S25FL128SAGMFV010, it trades package form factor for higher interconnect density and thermal performance in stacked-module designs.

Availability

S25FL128SAGBHIC10 is available at Aetrix Electronics and suitable for avionics, tactical communications, missile guidance, and military vehicle electronics requiring stable component supply across extended lifecycle programs.

Supply support for S25FL128SAGBHIC10 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 high-reliability memory solutions for industrial and defense markets.

This part belongs to the FL-S family of SPI Multi-I/O NOR flash devices, engineered specifically for military and aerospace applications demanding extended temperature operation, deterministic boot behavior, and hardware-enforced security.

FAQ

Does S25FL128SAGBHIC10 support both 24-bit and 32-bit addressing?

Yes - it supports extended addressing modes: 24-bit for legacy compatibility (up to 16 MB) and 32-bit for full 128 Mb access. The addressing mode is selected via configuration register bit CR[3], and the device automatically handles address width negotiation during command execution.

What is the purpose of the VIO pin, and can it be tied to VCC?

VIO sets the I/O voltage level independently from VCC, enabling interoperability with 1.8 V or 3.3 V host controllers. It may be tied to VCC only if the host operates at the same voltage; otherwise, a dedicated 1.65–3.6 V supply must be provided to ensure signal integrity and timing compliance.

How does AutoBoot function, and can the boot address be modified?

AutoBoot executes a preconfigured read command (Normal or Quad) at power-up or hardware reset from a user-programmable address stored in the configuration register. The boot address is writable via standard SPI commands and persists across power cycles, allowing field-updatable boot targets.

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

The OTP array is organized as 1024 individually addressable bytes, each programmable once via standard SPI write commands. Once programmed, bits cannot be reset; however, unused bytes remain available for later use, supporting phased key injection or version tagging in secure boot flows.