Infineon Technologies S25FL128LAGMFM010

Overview

S25FL128LAGMFM010 from Infineon Technologies is a 128-Mbit serial NOR flash memory with Quad SPI interface, 3.0 V supply voltage, and 100 MHz clock frequency supporting XIP mode. It features uniform 4-KB sectors, 64-KB blocks, and hardware write protection via WP# pin for embedded boot code storage in industrial controllers.

For engineers reviewing the S25FL128LAGMFM010 datasheet, S25FL128LAGMFM010 pinout, S25FL128LAGMFM010 application, or S25FL128LAGMFM010 equivalent, key selection criteria include sector architecture compatibility, Quad SPI timing compliance, and hardware write-protection implementation in safety-critical firmware storage.

Technical Context

This device implements a standard SPI-compatible command set extended for Quad I/O operation, supporting single/dual/quad read modes and program/erase operations with internal address management. It integrates a 256-byte page buffer and supports deep power-down mode with 10 µA typical current draw.

The memory array is organized as 256 K × 16 bits, with erase suspend/resume capability and 100,000 program/erase cycles endurance. Data retention is rated at 20 years at 85°C ambient temperature.

Key Specifications

Pinout & Package

Supplied in an 8-pin SOIC (208-mil) package with standard SPI pinout and dedicated Write Protect (WP#) and Hold (HOLD#) control terminals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S25FL128SAGMFM001 and MX25L12833FZC-10G, the S25FL128LAGMFM010 uniquely provides both hardware write protection and HOLD# functionality in a 100 MHz Quad SPI package-critical for deterministic firmware update handling in safety-certified systems.

Availability

S25FL128LAGMFM010 is available at Aetrix Electronics and suitable for industrial PLCs, medical imaging devices, automotive ADAS modules, and smart energy meters requiring stable component supply across multi-year production cycles.

Supply support for S25FL128LAGMFM010 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 AG is a German semiconductor manufacturer specializing in power management, automotive ICs, and secure microcontrollers.

This part belongs to the S25FL Serial Flash family, designed specifically for reliable, high-performance code storage in safety-critical embedded systems where firmware integrity and long-term data retention are mandatory.

FAQ

Is S25FL128LAGMFM010 compatible with standard SPI controllers?

Yes-it supports legacy SPI mode (single I/O) alongside Dual and Quad I/O modes. Standard SPI controllers can access it using basic read/write commands, though Quad mode requires controller support for extended instruction sets like 0x6B (Fast Read Quad Output).

What is the purpose of the HOLD# pin?

HOLD# pauses ongoing serial communication without resetting internal state or losing clock synchronization. This allows external processors to temporarily halt flash access during high-priority interrupts, ensuring deterministic timing in real-time systems.

Does this device support execute-in-place (XIP) operation?

Yes-its 100 MHz Quad SPI interface and low-latency read timing (≤10 ns address access) enable direct code execution from flash memory, eliminating the need to copy firmware into RAM before execution in resource-constrained MCUs.

How is hardware write protection implemented?

Hardware write protection is activated by pulling the WP# pin low. When asserted, it locks all sectors-preventing program and erase operations regardless of software command issuance-providing fail-safe protection against firmware corruption during power transients or software faults.