Infineon Technologies S25FL132K0XMFV040

Overview

S25FL132K0XMFV040 from Cypress Semiconductor is a 32-Mbit (4 Mbyte), 3.0 V serial NOR flash memory with SPI Multi-I/O interface, supporting Quad Read at 108 MHz (54 MB/s), uniform 4 kB sector and 64 kB block erase, and 100K program-erase cycles. It operates across –40 °C to +105 °C (Industrial Plus), features three 256-byte OTP security registers, 8-byte unique ID, and Execute-In-Place (XIP) capability for embedded code storage in microcontroller boot systems.

For engineers reviewing the S25FL132K0XMFV040 datasheet, S25FL132K0XMFV040 pinout, S25FL132K0XMFV040 application, or S25FL132K0XMFV040 equivalent, key selection criteria include quad-mode read throughput, sector protection granularity, security register configurability, and compatibility with legacy FL-K footprint and command set - critical for industrial control firmware updates and automotive infotainment boot memory.

Technical Context

This device implements a 90 nm floating gate architecture with SPI Multi-I/O (SIO/DIO/QIO) support, enabling configurable data widths using shared I/O pins (IO0–IO3). Its command set includes Program Suspend/Resume and Erase Suspend/Resume, allowing background operations without halting host execution.

The memory integrates JEDEC JESD216B-compliant SFDP tables, volatile/non-volatile configuration registers, and pointer-based block protection covering 4 kB to full array. Hardware write protection (WP#) and hold (HOLD#) signals operate independently in SIO/DIO modes but are disabled when Quad I/O is active.

Key Specifications

Pinout & Package

Package: 8-contact WSON (5 mm × 6 mm, WND008), RoHS-compliant, moisture-sensitive level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S25FL132K0XMFV040, S25FL064L offers double density and higher speed but requires board redesign, while S25FL128S adds ECC and dual-interface flexibility at the cost of increased complexity and no direct OTP register equivalence - making S25FL132K optimal for cost-sensitive, footprint-constrained legacy upgrades.

Availability

S25FL132K0XMFV040 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive infotainment boot memory, and medical diagnostic device configuration requiring stable component supply despite end-of-life status.

Supply support for S25FL132K0XMFV040 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) is a fabless semiconductor company specializing in microcontrollers, connectivity solutions, and non-volatile memory for industrial, automotive, and consumer applications.

The S25FL1-K family was designed for high-reliability embedded systems needing SPI flash with enhanced security, XIP capability, and extended temperature operation - targeting applications where firmware integrity and long-term data retention are mission-critical.

FAQ

Is S25FL132K0XMFV040 still recommended for new designs?

No. Cypress explicitly states this part is "Not Recommended for New Design" and recommends migration to S25FL064L. However, it remains available for legacy design support, repair, and continuity programs where footprint and command compatibility are mandatory. Aetrix maintains inventory and provides lifecycle coordination for ongoing production.

What package does S25FL132K0XMFV040 use, and is it RoHS-compliant?

S25FL132K0XMFV040 uses the 8-contact WSON package (5 mm × 6 mm, part code WND008), with exposed pad for thermal dissipation. It is RoHS-compliant, lead-free, and rated at Moisture Sensitivity Level 3 (MSL3), requiring bake conditioning before reflow if exposed beyond floor life.

Does this device support Quad I/O mode, and how is it enabled?

Yes - Quad I/O mode is enabled by setting Status Register bit SR[1] = 1 and configuring the appropriate instruction (e.g., 0xEB for Quad Read). In QIO mode, IO2 and IO3 become bidirectional data lines, disabling WP# and HOLD# functions. Dummy cycles and latency must be configured via SFDP or status register for timing compliance.

How is the 8-byte unique ID accessed, and can it be overwritten?

The 8-byte unique ID is read using the 4Bh command (Read Unique ID), but this command is explicitly unsupported in S25FL132K per datasheet Section 1.1.2.2. Instead, the device provides a factory-programmed, read-only 8-byte ID accessible via the RDID (9Fh) command extension or SFDP table - and it cannot be altered, erased, or reprogrammed.