Infineon Technologies S25FL132K0XBHV020

Overview

S25FL132K0XBHV020 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 applications.

For engineers reviewing the S25FL132K0XBHV020 datasheet, S25FL132K0XBHV020 pinout, S25FL132K0XBHV020 application, or S25FL132K0XBHV020 equivalent, key selection criteria include quad-speed read performance, hardware/software write protection granularity, security register configurability, and compatibility with legacy FL-K footprint and command set in space-constrained industrial control and automotive infotainment systems.

Technical Context

This device implements a 90 nm floating-gate NOR architecture with SPI-MIO support for Single/Dual/Quad I/O protocols using only four to six pins (CS#, SCK, IO0–IO3). Its command set is backward-compatible with S25FL-K but omits legacy commands like Quad Page Program (32h) and Half-Block Erase (52h), while adding volatile configuration register support and variable dummy-cycle latency for optimized timing.

The memory array is organized into 2048 uniform 4 kB sectors (total 8 MB addressable space, though density is 32 Mbit = 4 MB), with status and security registers mapped via JEDEC SFDP v1.5. Protection modes include top/bottom block locking, pointer-based range control (S25FL132K-specific), and lock-down-until-power-cycle enforcement - all configurable via non-volatile or volatile status bits.

Key Specifications

Pinout & Package

Package: 8-contact WSON (5 mm × 6 mm, leadless, exposed pad), 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 S25FL132K0XBHV020, S25FL064L offers higher density and speed for future-proofing, while MX25L3233F provides lower-cost compatibility without security extensions - both require validation of timing, protection scheme, and OTP dependency in target firmware.

Availability

S25FL132K0XBHV020 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 S25FL132K0XBHV020 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 microcontroller solutions for industrial, automotive, and IoT applications.

The S25FL1-K family was engineered to deliver SPI NOR flash with enhanced security, XIP-optimized read performance, and industrial temperature robustness - bridging legacy FL-K compatibility with modern firmware update and protection requirements.

FAQ

Is S25FL132K0XBHV020 still recommended for new designs?

No - Cypress explicitly states this part is "Not Recommended for New Design" and recommends migration to S25FL064L. It remains available for legacy production and repair, with full technical documentation and known lifecycle status. Aetrix maintains inventory and supports obsolescence mitigation planning for ongoing builds.

What package does S25FL132K0XBHV020 use, and is it pin-compatible with other S25FL1-K variants?

S25FL132K0XBHV020 uses an 8-contact WSON (5 mm × 6 mm) package (WND008). It shares identical pinout and footprint with all S25FL1-K devices in the same package option, including S25FL116K and S25FL164K - enabling drop-in replacement within the same density family when board layout permits.

Does this device support Execute-In-Place (XIP), and what conditions optimize it?

Yes - XIP is enabled via Continuous Read Mode and Quad Read commands. Optimal XIP performance requires host controller support for QIO protocol, proper dummy cycle configuration (variable latency per SFDP), and stable 108 MHz SCK timing. The 54 MB/s throughput matches typical parallel NOR bandwidth, reducing need for code shadowing.

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

Security includes three 256-byte OTP registers (irreversible write-once), 8-byte unique ID, and pointer-based block protection. OTP registers are permanently locked after programming; protection modes are controlled via non-volatile status bits (BP0–BP3, TB/BP3) and hardware WP# signal. Lock-down-until-power-cycle prevents runtime override of protection settings.