Cypress Semiconductor Corp S25FL256LDPMFI000

Overview

S25FL256LDPMFI000 from Infineon is a 256-Mbit serial NOR flash memory with Quad SPI interface, 133 MHz clock frequency, and 3.0 V supply voltage, used for code storage and execution in industrial microcontroller boot systems.

For engineers reviewing the S25FL256LDPMFI000 datasheet, S25FL256LDPMFI000 pinout, S25FL256LDPMFI000 application, or S25FL256LDPMFI000 equivalent, key selection criteria include read latency, sector erase granularity, write endurance, and industrial temperature range support.

Technical Context

This device implements a standard Serial Peripheral Interface (SPI) with Quad I/O (QPI) mode supporting single/dual/quad data line operation. It features a 64-byte page programming buffer and uniform 4-KB sector erase architecture.

The memory supports both volatile and non-volatile configuration register settings, including latency cycle selection and write protection modes. It complies with JEDEC JESD216B for SFDP (Serial Flash Discoverable Parameters) table support.

Key Specifications

Pinout & Package

Package: 8-pin SOIC (300 mil, 208 mil width), RoHS-compliant, surface-mountable with standard reflow profile.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S25FL256SAGNFI000, this part offers identical functionality under Infineon branding and support; versus W25Q256JWEIQ, it provides native 3.3 V operation and broader industrial qualification without voltage translation.

Availability

S25FL256LDPMFI000 is available at Aetrix Electronics and suitable for industrial PLCs, medical imaging devices, automotive ADAS modules, and smart grid gateways requiring stable component supply and long-term lifecycle assurance.

Supply support for S25FL256LDPMFI000 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, sensing, and connectivity solutions for industrial, automotive, and IoT markets.

This device belongs to the Semper™ family of high-reliability NOR flash memories, designed specifically for mission-critical code storage where data integrity, long-term retention, and industrial environmental resilience are mandatory.

FAQ

Is S25FL256LDPMFI000 pin-compatible with earlier S25FL256L variants?

Yes, it maintains identical 8-pin SOIC package and pinout with all S25FL256L-series devices, including S25FL256L0PMFI000 and S25FL256L0XNFI000. No PCB redesign is needed when upgrading within the L-series family.

Does this device support XIP (eXecute-In-Place) mode?

Yes, it supports true XIP operation with ≤8 ns initial access time and continuous 133 MHz QPI read throughput. The device includes configurable latency cycles and wrap-around burst addressing to match MCU cache line requirements.

What is the minimum erase block size supported?

The smallest erasable unit is a uniform 4-KB sector. There is no smaller erase granularity; the device does not support 256-byte or 512-byte page erase operations.

How is hardware write protection enabled on this device?

Hardware write protection is activated by pulling the WP# pin low while CS# is high. This locks all status register bits and prevents program/erase commands until WP# is returned high and a valid unlock sequence is issued.