Infineon Technologies S25FL256LAGBHB030

Overview

S25FL256LAGBHB030 from Infineon is a 256-Mbit (32-MB) serial NOR flash memory with Quad SPI interface, 1.8 V supply voltage, and 133 MHz read clock frequency. It supports XIP (execute-in-place), dual/quad I/O protocols, and sector-erase architecture for embedded boot code storage in microcontroller-based systems.

For engineers reviewing the S25FL256LAGBHB030 datasheet, S25FL256LAGBHB030 pinout, S25FL256LAGBHB030 application, or S25FL256LAGBHB030 equivalent, key selection criteria include read latency, erase granularity, write protection scheme, and industrial temperature range compliance.

Technical Context

This device implements a standard Serial Peripheral Interface (SPI) with extended quad I/O (QPI) mode for higher throughput. It uses a 4-KB uniform sector architecture with 64-KB blocks and supports both volatile and non-volatile status register configuration.

Internal write-erase control logic enforces 100K program/erase cycle endurance and 20-year data retention at 85°C. The memory array is organized as 65,536 pages of 512 bytes each, supporting byte-level random read access.

Key Specifications

Pinout & Package

Supplied in an 8-pin SOIC (Small Outline Integrated Circuit) package with 208-mil body width and standard JEDEC MS-012AC footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S25FL256SAGMFI000 and MX25L25645GMI-13G, the S25FL256LAGBHB030 uniquely combines 1.8 V operation, 105°C rating, and quad SPI compatibility-making it the sole option for thermally demanding, low-voltage embedded boot applications.

Availability

S25FL256LAGBHB030 is available at Aetrix Electronics and suitable for industrial automation, automotive ADAS ECUs, and medical imaging systems requiring stable component supply and long-term lifecycle assurance.

Supply support for S25FL256LAGBHB030 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 serial NOR flash memories, designed specifically for mission-critical embedded systems requiring high reliability, security, and seamless integration with microcontrollers and FPGAs.

FAQ

Is S25FL256LAGBHB030 compatible with standard SPI controllers?

Yes, it supports legacy single I/O SPI mode at up to 80 MHz, in addition to dual and quad I/O modes. Standard SPI commands (e.g., 0x03 Read Data, 0x20 Sector Erase) are fully implemented, allowing drop-in use with existing SPI drivers without modification.

Does this part support hardware write protection for specific memory regions?

Yes, it provides individual 4-KB sector protection via status register bits SRWD, TB, BP2–BP0, and SEC. Protection can be enabled permanently using the One-Time Programmable (OTP) security register, preventing accidental or malicious overwrite of boot sectors.

What is the maximum clock frequency for Quad SPI mode?

The maximum SCLK frequency in Quad SPI mode is 133 MHz, yielding up to 532 MB/s effective throughput. This requires proper PCB layout with matched trace lengths and controlled impedance to maintain signal integrity across all four data lines.

How does the deep power-down mode affect wake-up time and data retention?

In deep power-down mode, supply current drops to 2 µA and wake-up latency is 35 µs maximum. Data retention remains guaranteed for 20 years at 85°C, with no degradation observed during repeated entry/exit cycles per qualification testing.