Cypress Semiconductor Corp S25FL256LDPNFN011

Overview

S25FL256LDPNFN011 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, 4KB uniform sector erase, 100,000 program-erase cycles, and industrial temperature range (–40°C to +85°C). It serves as non-volatile code/data storage in microcontroller boot systems, FPGA configuration, and embedded firmware.

For engineers reviewing the S25FL256LDPNFN011 datasheet, S25FL256LDPNFN011 pinout, S25FL256LDPNFN011 application, or S25FL256LDPNFN011 equivalent, key selection criteria include quad-read throughput (66 MB/s), security region protection (four 256-byte regions), SFDP compliance, and WSON-8 package compatibility with legacy FL-S/FL-P families.

Technical Context

The S25FL256LDPNFN011 implements a 65 nm floating gate architecture with a 256-byte page programming buffer and hierarchical erase granularity (4KB sector / 32KB half-block / 64KB block / chip). Its command set supports both legacy SPI single-I/O and extended multi-I/O protocols including DDR Quad I/O at 66 MHz clock rate.

Hardware-level security includes volatile/non-volatile individual block lock, pointer region configuration, and power supply lock-down for Security Regions 2 and 3. The device uses Serial Flash Discoverable Parameters (JESD216B) for runtime configuration discovery and supports XIP (execute-in-place) via continuous read mode.

Key Specifications

Pinout & Package

Package: 8-pin WSON (6 mm × 8 mm, 0.5 mm pitch), Pb-free, moisture sensitivity level 3 (MSL3).

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 S25FL256LDPNFN011 delivers superior bandwidth via DDR Quad I/O, hardware-enforced security partitioning, and JESD216B auto-configuration - making it optimal for next-generation secure, high-performance embedded systems.

Availability

S25FL256LDPNFN011 is available at Aetrix Electronics and suitable for MCU boot memory, FPGA configuration storage, and industrial firmware repository applications requiring stable component supply, long-term lifecycle support, and Pb-free compliance.

Supply support for S25FL256LDPNFN011 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-reliability non-volatile memory and programmable system-on-chip solutions for industrial, automotive, and communications markets.

The FL-L family targets high-density, high-speed serial flash applications demanding robust security, extended endurance, and seamless migration from prior Cypress SPI flash generations - especially where XIP, firmware agility, and hardware-based data protection are critical.

FAQ

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

The S25FL256LDPNFN011 supports DDR Quad I/O operation at up to 66 MHz clock frequency, delivering 66 MB/s effective read throughput by transferring data on both rising and falling edges of the clock. This is confirmed in the Performance Summary section (Page 2) of the official datasheet (Document Number: 002-00124 Rev. *A), where DDR Quad Read is specified at 66 MHz with 66 MBps.

Does this device support execute-in-place (XIP) functionality?

Yes, the S25FL256LDPNFN011 supports XIP via its Continuous Read mode, which allows uninterrupted sequential instruction fetch directly from flash without CPU intervention. This capability is explicitly enabled by the "Continuous (XIP)" read mode listed under Read Commands in the Features section (Page 1), and is further detailed in Section 9.4 (Read Memory Array Commands) of the datasheet.

How many security regions does the S25FL256LDPNFN011 provide, and what is their size?

The device provides four dedicated security regions, each 256 bytes in size, located outside the main flash array. These regions are independently configurable for protection using volatile/non-volatile lock bits, password, or power supply lock-down. This is documented in the Security Features section (Page 1) and elaborated in Sections 7.5 and 8.1 of the datasheet.

Is the WSON-8 package of S25FL256LDPNFN011 pin-compatible with earlier Cypress FL-S or FL-P series devices?

Yes, the WSON-8 package (WNH008) of S25FL256LDPNFN011 is footprint-compatible with S25FL1-K, S25FL-P, and S25FL-S family devices in the same package variant. The datasheet states "Serial Command subset and footprint compatible with S25FL-A, S25FL1-K, S25FL-P, S25FL-S and S25FS-S SPI families" (Page 1), and Table 1.1 confirms identical pinout across FL-L and FL-S in WSON-8.