Infineon Technologies S25FL256LDPMFV000

Overview

S25FL256LDPMFV000 from Infineon is a 256-Mbit serial NOR flash memory with quad SPI interface, 1.8 V supply voltage, 133 MHz clock frequency, and 4-byte addressing mode, used in boot code storage for industrial microcontrollers.

For engineers reviewing the S25FL256LDPMFV000 datasheet, S25FL256LDPMFV000 pinout, S25FL256LDPMFV000 application, or S25FL256LDPMFV000 equivalent, key selection criteria include read latency, sector erase granularity, write protection scheme, and JEDEC JESD216 compliant SFDP register support.

Technical Context

This device implements a standard Serial Peripheral Interface (SPI) with Quad I/O (QPI) mode enabling up to 532 MB/s effective throughput. It supports both legacy 3-byte and extended 4-byte addressing for >16 MB capacity access.

The memory array is organized into 512 uniform 64-KB sectors and includes hardware-controlled block protection via WP# and SRWD bits. It complies with JEDEC JESD216B for Serial Flash Discoverable Parameters (SFDP) version 1.6A.

Key Specifications

Pinout & Package

Package: 8-pin SOIC (300 mil, 5.2 mm × 5.2 mm, 1.27 mm pitch).

Key Features

Applications

Equivalent & Alternatives

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

Compared with S25FL256LDPMFV000, the Cypress rebrand offers identical functionality and drop-in replacement capability, while the Winbond alternative requires voltage translation and lacks robust hardware-level write protection-critical for safety-certified firmware storage.

Availability

S25FL256LDPMFV000 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device boot image retention, and automotive ADAS camera module initialization requiring stable component supply and long-term lifecycle assurance.

Supply support for S25FL256LDPMFV000 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 applications.

This device belongs to the Semper™ family of high-reliability NOR flash memories, designed specifically for mission-critical boot code storage where data integrity, endurance, and deterministic timing are mandatory.

FAQ

Is S25FL256LDPMFV000 compatible with standard SPI controllers?

Yes, it supports standard SPI mode (single I/O) at up to 80 MHz, in addition to dual and quad I/O modes. Command sets follow JEDEC JESD216B, ensuring interoperability with common MCU SPI peripherals without custom drivers.

What is the endurance rating for this flash device?

The device guarantees 100,000 program/erase cycles per sector and 20-year data retention at 55 °C ambient temperature. Endurance is validated per JEDEC JESD47 stress testing standards and applies uniformly across all 512 sectors.

Does it support execute-in-place (XIP) operation?

Yes, the device supports XIP via QPI mode with continuous read commands, enabling direct code execution from flash without loading into RAM. Latency is fixed at 8 clock cycles for first-word access, meeting real-time MCU requirements.

How is write protection implemented?

Hardware write protection is implemented using the dedicated WP# pin, which locks status register bits and prevents program/erase operations when asserted low. Software protection via status register bits (SRWD, BP0–BP3) provides additional granularity for sector-level locking.