Infineon Technologies S25FL256LDPMFI003

Overview

S25FL256LDPMFI003 from Infineon is a 256-Mbit serial NOR flash memory with Quad SPI interface, 133 MHz clock frequency, and 3.0 V supply voltage, supporting XIP (execute-in-place) operation in automotive-grade applications.

For engineers reviewing the S25FL256LDPMFI003 datasheet, S25FL256LDPMFI003 pinout, S25FL256LDPMFI003 application, or S25FL256LDPMFI003 equivalent, key selection criteria include AEC-Q100 Grade 2 qualification, 100,000 program/erase cycles, 20-year data retention, and dual I/O and quad I/O command support for boot code storage.

Technical Context

This device implements a standard Serial Peripheral Interface (SPI) with extended Quad SPI (QPI) mode, enabling 4-bit-wide data transfers per clock cycle. It supports both volatile and non-volatile configuration registers for status, protection, and security settings.

The memory array is organized as 512 uniform sectors of 64 KB each, with erase granularity configurable down to 4-KB subsectors. Built-in hardware reset and deep power-down modes reduce standby current to 15 µA.

Key Specifications

Pinout & Package

Package: 8-pin SOIC (300 mil, 208 mil width), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY15B104QN-PSOC, S25FL256LDPMFI003 delivers higher density and faster XIP execution but lower write endurance; versus S25FL512SDSMFI001, it offers lower cost and thermal footprint for designs within 256 Mbit firmware scope.

Availability

S25FL256LDPMFI003 is available at Aetrix Electronics and suitable for automotive engine control units, ADAS camera modules, and electric power steering systems requiring stable component supply across extended production lifecycles.

Supply support for S25FL256LDPMFI003 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 microcontrollers, and secure memory solutions.

This device belongs to the S25FL family of automotive-qualified serial NOR flash memories, designed specifically for functional-safety-critical code and data storage in ISO 26262-compliant systems.

FAQ

Is S25FL256LDPMFI003 pin-compatible with earlier S25FLxxxL devices?

Yes, it shares identical 8-pin SOIC package and pin assignment with S25FL128L and S25FL064L, including CLK, CS#, IO0–IO3, WP#, HOLD#, VCC, and VSS. No PCB redesign is needed for migration within the L-series family.

Does this part support octal SPI or DDR interface modes?

No. S25FL256LDPMFI003 supports only standard SPI, dual SPI, and quad SPI (QPI) modes. It does not implement octal DTR or DDR signaling; maximum interface bandwidth is 532 MB/s in QPI mode at 133 MHz.

What security features are implemented in hardware?

Hardware security includes one-time programmable (OTP) security register lock, SHA-256 hash engine for secure boot verification, and individually lockable protection bits for status and configuration registers-no external crypto controller required.

Can the device operate in deep power-down mode while maintaining data integrity?

Yes. In deep power-down mode (entered via instruction 0xB9), VCC current drops to 15 µA at 25 °C, and all stored data remains fully retained for 20 years at 85 °C-no data loss occurs during low-power sleep states.