Infineon Technologies S25FL164K0XMFA000

Overview

S25FL164K0XMFA000 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. It operates across –40 °C to +105 °C (Industrial Plus), features three 256-byte OTP security registers, and enables Execute-In-Place (XIP) in embedded boot code storage applications.

For engineers reviewing the S25FL164K0XMFA000 datasheet, S25FL164K0XMFA000 pinout, S25FL164K0XMFA000 application, or S25FL164K0XMFA000 equivalent, key selection considerations include quad-mode read bandwidth, hardware write protection via WP#/HOLD#, SFDP compliance, security register programmability, and migration path to S25FL064L for new designs.

Technical Context

This device implements a JEDEC-standard SPI interface with configurable clock polarity/phase (modes 0 and 3), supporting Normal, Fast, Dual, and Quad Read commands. Its internal architecture uses 90 nm floating gate technology and includes dedicated XIP-optimized continuous/wrapped read modes with variable dummy cycles for latency tuning.

The memory array is organized into uniform 4 kB sectors and 64 kB blocks, with full support for program/erase suspend-resume, deep power-down (2 µA), and status register–controlled protection. Security functions include pointer-based block protection, 8-byte unique ID, and lock-down-until-power-cycle enforcement.

Key Specifications

Pinout & Package

Package: 8-lead SOIC (208 mil), body size 5.3 mm × 5.3 mm, standard JEDEC MS-012AC footprint (SOC008).

Key Features

Applications

Equivalent & Alternatives

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

Compared with S25FL164K0XMFA000, S25FL064L0XMFA000 delivers higher bandwidth and longer lifecycle, while MX25L6433FZNI-10G offers drop-in compatibility in basic read/write use cases but omits critical enterprise-grade features like suspend-resume and OTP security registers.

Availability

S25FL164K0XMFA000 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 S25FL164K0XMFA000 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 industrial, automotive, and consumer applications.

The S25FL1-K family was designed specifically for high-reliability embedded systems needing SPI flash with XIP-optimized read performance, robust security, and extended temperature operation-targeting boot code, firmware, and configuration storage where parallel NOR footprint was prohibitive.

FAQ

Is S25FL164K0XMFA000 still in production?

No. Cypress officially retired the S25FL1-K family and does not recommend it for new designs. Production shipments ceased after migration to the S25FL-L series. Aetrix Electronics maintains limited legacy inventory for existing programs under controlled obsolescence support, with full traceability and documented last-time-buy terms.

What is the functional difference between WP# and HOLD# pins?

WP# (Write Protect) is a hardware-level signal that globally disables all write/erase commands when asserted low, independent of software state. HOLD# suspends an ongoing command (e.g., Read or Erase) at any clock cycle and resumes it upon deassertion-enabling real-time interrupt servicing without aborting or restarting the operation.

Can S25FL164K0XMFA000 be used in AEC-Q100 Grade 2 automotive applications?

Yes. The S25FL164K0XMFA000 variant is explicitly qualified for AEC-Q100 Grade 2 (–40 °C to +105 °C) per its datasheet. It meets stress testing requirements including HTOL, TCT, and ESD, and supports automotive boot timing constraints via Quad Read mode and wrapped read optimization.

Does this device support JEDEC-standard SFDP?

Yes. It implements JEDEC JESD216B-compliant Serial Flash Discoverable Parameters, exposing vendor ID, density, erase block sizes, timing parameters, and command support in a standardized, host-readable format-enabling driver auto-configuration without hardcoded assumptions.