Infineon Technologies S25FL132K0XMFB041

Overview

S25FL132K0XMFB041 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) and integrates three 256-byte OTP security registers, 8-byte unique ID, and hardware/software write protection - deployed in embedded boot code storage and firmware update systems.

For engineers reviewing the S25FL132K0XMFB041 datasheet, S25FL132K0XMFB041 pinout, S25FL132K0XMFB041 application, or S25FL132K0XMFB041 equivalent, key selection criteria include quad-speed XIP capability, industrial-plus temperature support, SFDP-compliant configuration, and migration path to S25FL064L for new designs.

Technical Context

This device implements a 90 nm floating-gate NOR architecture with SPI-MIO (Single/Dual/Quad I/O) command set compatibility to legacy S25FL-K families. It supports JEDEC JESD216B SFDP for automatic parameter discovery and executes continuous/wrapped read modes optimized for execute-in-place (XIP) operation.

Memory organization comprises 64 uniform 64 kB blocks (4096 sectors), with dedicated security registers mapped at fixed addresses and configurable protection via status register bits, WP# pin, and lock-down-on-power-cycle mode. All operations - page program, sector/block erase, suspend/resume - are managed through standardized SPI opcodes.

Key Specifications

Pinout & Package

Package: 8-contact USON (4 mm × 4 mm), lead-free, 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 S25FL132K0XMFB041, S25FL064L offers higher bandwidth and density for next-gen platforms, while MX25L3233F provides basic SPI flash functionality at lower cost but omits industrial-plus qualification and robust security - making it unsuitable for safety-critical or extended-temperature deployments.

Availability

S25FL132K0XMFB041 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot memory, and medical imaging device configuration requiring stable component supply despite end-of-life status.

Supply support for S25FL132K0XMFB041 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 embedded systems.

The S25FL1-K family was designed for high-reliability, SPI-based code storage in resource-constrained industrial and automotive systems - emphasizing XIP efficiency, security extensibility, and thermal robustness over raw density.

FAQ

Is S25FL132K0XMFB041 still recommended for new designs?

No. Cypress explicitly states this part is "Not Recommended for New Design" and designates S25FL064L as the factory-recommended migration path. While fully functional and supported for existing production, new projects should adopt S25FL064L for enhanced performance, longevity, and Infineon's ongoing roadmap support.

What package does S25FL132K0XMFB041 use, and is it RoHS-compliant?

S25FL132K0XMFB041 uses an 8-contact USON package (4 mm × 4 mm, part code UNF008). It is lead-free and RoHS-compliant, with moisture sensitivity level (MSL) 3 - requiring bake conditioning if exposed beyond floor life before reflow soldering.

Does this device support Execute-in-Place (XIP), and how is latency managed?

Yes. It supports efficient XIP via Continuous and Wrapped Read modes. Latency is configurable via SFDP (JESD216B) and volatile/non-volatile status register bits, allowing optimization for either fastest initial access (fewer dummy cycles) or highest clock rate stability - critical for deterministic real-time execution.

How is security implemented, and can the OTP registers be reprogrammed?

Security includes three 256-byte OTP registers (irreversible once programmed), 8-byte unique ID, hardware WP#/HOLD# pins, and software-controlled lock-down mode. OTP registers cannot be erased or rewritten - they are fused during final test. Protection granularity ranges from 4 kB sectors to full chip, enforced by status register bits and physical pin states.