Infineon Technologies S25FL256LDPBHN030

Overview

S25FL256LDPBHN030 from Cypress Semiconductor is a 256 Mbit (32 Mbyte) serial NOR flash memory with SPI Multi-I/O interface, supporting SDR/DDR Quad I/O and QPI modes up to 133 MHz clock rate, 66 MB/s read bandwidth, 4 KB uniform sector erase, and 100,000 program-erase cycles. It operates from 2.7 V to 3.6 V across –40°C to +105°C and is used in boot code storage for industrial microcontrollers and FPGA configuration.

For engineers reviewing the S25FL256LDPBHN030 datasheet, S25FL256LDPBHN030 pinout, S25FL256LDPBHN030 application, or S25FL256LDPBHN030 equivalent, key selection criteria include quad-mode timing compliance, security region protection granularity, SFDP v1.5 support, and WSON-8 package thermal performance under continuous XIP operation.

Technical Context

This device implements a floating-gate 65 nm process with a 256-byte page programming buffer and supports burst wrap, continuous XIP, and DDR Quad I/O read modes. Its command set includes JEDEC JESD216B-compliant SFDP for automatic configuration discovery and legacy block protection with volatile/non-volatile individual sector lock.

The memory architecture enables simultaneous suspend/resume of program and erase operations, and integrates four 256-byte non-volatile security regions outside the main array-each independently protected via power supply lock-down, password, or permanent write disable. Reset behavior is configurable via CR2V[7].

Key Specifications

Pinout & Package

Package: 8-pin WSON (6 mm × 8 mm, 0.5 mm pitch), Pb-free, 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 S25FL256SAGMFV000 and MX25L25645GMI-10G, the S25FL256LDPBHN030 uniquely combines DDR Quad I/O bandwidth, JEDEC SFDP v1.5 auto-configuration, and four dedicated hardware-protected security regions - enabling secure, high-speed, self-describing boot memory for next-generation industrial and medical platforms.

Availability

S25FL256LDPBHN030 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, FPGA configuration memory, and automotive ADAS camera modules requiring stable component supply, long-lifecycle support, and guaranteed Pb-free WSON-8 packaging.

Supply support for S25FL256LDPBHN030 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

Cypress Semiconductor (now part of Infineon Technologies) designs high-performance, low-power memory and microcontroller solutions for industrial, automotive, and IoT applications.

The FL-L family targets space-constrained embedded systems needing high-speed serial NOR flash with advanced security, suspend/resume flexibility, and seamless migration from parallel NOR or earlier SPI flash generations.

FAQ

What is the maximum clock frequency supported in DDR Quad I/O mode?

The S25FL256LDPBHN030 supports DDR Quad I/O at up to 66 MHz clock frequency, delivering 66 MB/s effective read bandwidth. This is confirmed in the Performance Summary table (page 2 of datasheet 002-00124 Rev. *A) and verified in AC Characteristics section 5.5, where tVH/tVL setup/hold times are specified for 66 MHz DDR operation.

Does this device support hardware reset via the IO3 pin?

Yes - IO3 functions as RESET# when Configuration Register-2 bit CR2V[7] = 1 and the device is not in Quad-I/O or QPI mode (CR1V[1] = 0). In Quad/QPI mode, IO3 serves as IO3; reset is then performed via command or by driving CS# high for >20 µs. This dual-role behavior is defined in Section 2.8 and Table 2.1 of the datasheet.

How many security regions does the S25FL256LDPBHN030 provide, and what is their size?

The device provides four non-volatile security regions, each exactly 256 bytes in size, located outside the main flash array. These regions support independent protection via power supply lock-down, password, or permanent disable. Their layout and protection mechanisms are detailed in Sections 7.5 and 8.1 of the datasheet.

Is SFDP (Serial Flash Discoverable Parameters) supported, and which version?

Yes - the device implements JEDEC JESD216B SFDP v1.5, enabling automatic host discovery of read/write/erase timing, address width, and configuration register layout. This is explicitly stated in Section 1.1 and fully documented in Section 11.1 of the datasheet, including SFDP parameter table structure and vendor-specific extensions.