Infineon Technologies S25FL164K0XMFA010

Overview

S25FL164K0XMFA010 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 and delivering up to 54 MB/s continuous data transfer. It features uniform 4 kB sector and 64 kB block erase, 100K program-erase cycles, and 20-year data retention. Used in embedded boot code storage, firmware update storage, and XIP-capable microcontroller systems.

For engineers reviewing the S25FL164K0XMFA010 datasheet, S25FL164K0XMFA010 pinout, S25FL164K0XMFA010 application, or S25FL164K0XMFA010 equivalent, key selection criteria include quad-mode read performance, industrial-plus temperature support (−40 °C to +105 °C), hardware write protection via WP#/HOLD#, security register OTP configuration, and migration path to S25FL064L.

Technical Context

The S25FL164K0XMFA010 implements JEDEC-standard SPI with modes 0 and 3 clock polarity/phase, supports Serial Flash Discoverable Parameters (SFDP) for automatic configuration, and enables Execute-In-Place (XIP) via Continuous and Wrapped Read modes. Its 90 nm floating gate technology enables reliable single-supply operation from 2.7 V to 3.6 V.

It integrates three 256-byte one-time-programmable (OTP) security registers, pointer-based block protection, and dual hardware/software write protection (WP# pin + Status Register bits). The device supports Program/Erase Suspend & Resume, enabling concurrent background operations without host interruption.

Key Specifications

Pinout & Package

Package: 8-lead SOIC (208 mil), body size 5.3 mm × 5.3 mm, lead pitch 1.27 mm, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S25FL164K0XMFA010, S25FL064L0XMFA010 delivers higher bandwidth and longer manufacturer support, while MX25L6433FZNI-10G offers lower unit cost but lacks OTP security and extended temperature qualification - trade-offs directly impact firmware integrity and deployment environment scope.

Availability

S25FL164K0XMFA010 is available at Aetrix Electronics and suitable for industrial control systems, automotive instrumentation, medical diagnostics, and network infrastructure requiring stable component supply amid end-of-life transitions.

Supply support for S25FL164K0XMFA010 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 communications markets.

The S25FL1-K family was engineered to deliver SPI NOR flash with enhanced XIP performance, robust security, and extended temperature operation - specifically targeting boot-critical applications in mission-critical embedded systems.

FAQ

Is S25FL164K0XMFA010 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 the S25FL-L family for long-term availability, improved specs, and ongoing technical support.

What package does S25FL164K0XMFA010 use, and is it pin-compatible with other S25FL1-K variants?

S25FL164K0XMFA010 uses an 8-lead SOIC (208 mil) package (SOC008 footprint). It shares the same pinout and signal mapping with all S25FL1-K devices in SOIC-8 packages, including S25FL116K and S25FL132K - enabling drop-in replacement within the same density tier when board layout permits.

Does S25FL164K0XMFA010 support Execute-In-Place (XIP), and what features optimize it?

Yes - it supports efficient XIP via Continuous Read Mode (≤8-clock overhead per access) and Wrapped Read Mode (fast cache-line refill after miss). These reduce instruction fetch latency significantly versus standard SPI flash, enabling direct CPU execution without RAM shadowing in many real-time applications.

How is security implemented in S25FL164K0XMFA010, and what protections are hardware-enforced?

Security includes three 256-byte OTP registers, top/bottom block protection controlled by pointer registers, and hardware write protection via WP# pin. The WP# signal locks status register bits and memory sectors independently of software commands - ensuring protection persists even if firmware is compromised or corrupted.