Infineon Technologies S25FL164K0XMFB010

Overview

S25FL164K0XMFB010 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 for XIP code execution and firmware storage in space-constrained industrial embedded systems.

For engineers reviewing the S25FL164K0XMFB010 datasheet, S25FL164K0XMFB010 pinout, S25FL164K0XMFB010 application, or S25FL164K0XMFB010 equivalent, key selection criteria include quad I/O timing compliance, security register OTP protection, AEC-Q100 Grade 2 qualification, 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 Single, Dual, and Quad I/O protocols using shared IO0–IO3 pins. QIO mode disables WP# and HOLD# functions, requiring software-based write protection when enabled.

It integrates a 90 nm floating gate process, serial flash discoverable parameters (SFDP) per JEDEC JESD216B, and dual-mode configuration (volatile/non-volatile status register bits). Security includes three 256-byte OTP registers, 8-byte unique ID, and pointer-based block protection for S25FL132K/S25FL164K variants.

Key Specifications

Pinout & Package

Package: 24-ball BGA (6 mm × 8 mm, FAB024/FAC024 footprint). Pinout validated per Cypress Document 002-00497 Rev. *H, Pages 29–31.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S25FL164K0XMFB010, the S25FL064L offers higher performance and active manufacturer support, while MX25L6433F provides basic SPI flash functionality at lower cost but omits critical security and qualification features needed for industrial/automotive use.

Availability

S25FL164K0XMFB010 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot memory, and medical imaging UI controller applications requiring stable component supply despite end-of-life status.

Supply support for S25FL164K0XMFB010 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 security, XIP performance, and extended temperature operation-targeting applications where code integrity and long-term data retention are mission-critical.

FAQ

Is S25FL164K0XMFB010 still recommended for new designs?

No. Cypress explicitly states this part is "Not Recommended for New Design" and recommends migrating to S25FL064L. It remains available for legacy production and repair, with Aetrix Electronics providing traceable, factory-sourced inventory and lifecycle coordination support.

What package does S25FL164K0XMFB010 use?

S25FL164K0XMFB010 uses a 24-ball BGA package measuring 6 mm × 8 mm, with footprint compatibility to FAB024 and FAC024 land patterns. This package supports high-density PCB layouts and improved thermal dissipation versus SOIC alternatives.

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

Yes. With Quad Read at 108 MHz delivering 54 MB/s, continuous read mode, and wrapped read capability, S25FL164K0XMFB010 enables deterministic XIP performance comparable to parallel NOR-validated across −40°C to +105°C with no wait states required.

How is security implemented in this flash memory?

Security includes three 256-byte OTP registers, 8-byte unique ID, non-volatile status register protection bits, software/hardware write protection, and pointer-based block locking. Lock-down until power cycle prevents runtime tampering-meeting foundational requirements for secure boot in industrial and automotive systems.