Infineon Technologies S25FL164K0XMFBQ13

Overview

S25FL164K0XMFBQ13 from Cypress Semiconductor is a 64-Mbit (8 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 - deployed in embedded boot code storage and firmware update applications.

For engineers reviewing the S25FL164K0XMFBQ13 datasheet, S25FL164K0XMFBQ13 pinout, S25FL164K0XMFBQ13 application, or S25FL164K0XMFBQ13 equivalent, key selection criteria include quad-speed read performance, OTP security register support, industrial-plus temperature range (−40 °C to +105 °C), and migration path to S25FL064L.

Technical Context

This device implements JEDEC-standard SPI Multi-I/O (MIO) with configurable clock polarity/phase (modes 0 and 3), supporting Normal, Fast, Dual, and Quad Read commands. It uses 90 nm floating gate technology and integrates Serial Flash Discoverable Parameters (SFDP) for automatic configuration discovery.

The memory supports Execute-In-Place (XIP) via Continuous and Wrapped Read modes, enabling efficient cache-line refill and low-overhead random access. Security features include three 256-byte OTP-protected security registers, 8-byte unique ID, and pointer-based block protection applicable only to S25FL132K and S25FL164K variants.

Key Specifications

Pinout & Package

Package: 8-contact WSON (5 mm × 6 mm, WND008). Lead-free, 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 S25FL164K0XMFBQ13, S25FL064L offers higher speed and longevity for future-proof designs, while MX25L6433F provides cost-efficient drop-in compatibility where security features are unused.

Availability

S25FL164K0XMFBQ13 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot memory, and medical imaging UI firmware requiring stable component supply despite end-of-life status.

Supply support for S25FL164K0XMFBQ13 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, reliable non-volatile memory and microcontroller solutions for industrial, automotive, and communications markets.

S25FL164K0XMFBQ13 belongs to the S25FL1-K serial NOR flash product line, engineered for systems demanding robust XIP performance, hardware-assisted security, and extended temperature operation in resource-constrained embedded platforms.

FAQ

Is S25FL164K0XMFBQ13 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 active inventory remains available for legacy production and repair, new schematics should use S25FL064L to ensure long-term supply and technical support.

What package does S25FL164K0XMFBQ13 use?

S25FL164K0XMFBQ13 uses an 8-contact WSON package measuring 5 mm × 6 mm (part code WND008), with exposed pad for thermal dissipation and lead-free, RoHS-compliant construction. Pinout matches JEDEC-standard 8-pin SPI flash layout.

Does this device support Execute-In-Place (XIP) reliably?

Yes - it supports XIP via Continuous and Wrapped Read modes, with Quad Read achieving 54 MB/s at 108 MHz. The 8-clock overhead in Continuous Read and cache-line-aligned Wrapped Read minimize latency, making it suitable for direct code execution in Cortex-M and RISC-V applications.

How is security implemented in S25FL164K0XMFBQ13?

Security includes three 256-byte OTP security registers, 8-byte unique device ID, non-volatile status register protection bits, software/hardware write protection, lock-down until power cycle, and pointer-based block protection - all confirmed in the official datasheet for S25FL132K/S25FL164K variants.