Cypress Semiconductor Corp S25FL164K0XMFV011

Overview

S25FL164K0XMFV011 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 S25FL164K0XMFV011 datasheet, S25FL164K0XMFV011 pinout, S25FL164K0XMFV011 application, or S25FL164K0XMFV011 equivalent, key selection criteria include quad-mode read bandwidth, hardware/software write protection granularity, SFDP compliance, security register configurability, and migration path to S25FL064L for new designs.

Technical Context

This device implements a 90 nm floating-gate NOR architecture with SPI-MIO (Single/Dual/Quad I/O) command set compatibility to prior FL-K families. It supports JEDEC JESD216B SFDP for automatic configuration discovery and uses a unified status register with volatile/non-volatile configuration options.

The memory array is organized into 128 uniform 64 kB blocks (each divisible into sixteen 4 kB sectors), with dedicated security registers mapped at fixed addresses and protected by OTP lock-down until power cycle. Command execution includes suspend/resume for both program and erase operations.

Key Specifications

Pinout & Package

Package: 8-lead SOIC (208 mil), RoHS-compliant, surface-mountable with standard reflow profile.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S25FL164K0XMFV011, S25FL064L delivers 23% higher Quad Read bandwidth and longer product lifetime, while S25FL164K0XMFI011 offers mechanical interchangeability in space-constrained 150-mil SOIC layouts-neither provides functional improvement over the original in existing designs.

Availability

S25FL164K0XMFV011 is available at Aetrix Electronics and suitable for boot code storage, firmware update storage, and secure configuration storage requiring stable component supply and long-term industrial availability.

Supply support for S25FL164K0XMFV011 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 global leader in embedded systems solutions, specializing in high-performance memory, PSoC programmable system-on-chip, and USB-C/power delivery ICs.

The S25FL1-K family was designed for cost-sensitive, space-constrained embedded systems needing reliable serial NOR flash with robust security and XIP capability - bridging legacy FL-K performance with industrial temperature and endurance requirements.

FAQ

Is S25FL164K0XMFV011 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 schematics should use S25FL064L for guaranteed long-term availability, improved performance, and updated feature set including enhanced SFDP and tighter AC timing.

What is the difference between S25FL164K0XMFV011 and S25FL164K0XMFI011?

The suffix 'V' denotes 208-mil SOIC packaging, while 'I' indicates 150-mil SOIC. Both share identical die, electrical specs, timing, and functionality. The only difference is physical package width and associated PCB footprint - no performance, reliability, or feature distinction exists between them.

Does S25FL164K0XMFV011 support Quad I/O mode with WP# and HOLD# active?

No. When Quad I/O mode is enabled (via Status Register bit QUAD), the WP# and HOLD# pins are repurposed as IO2 and IO3, disabling their hardware protection and suspend functions. These features remain available only in Single or Dual I/O modes.

Can S25FL164K0XMFV011 be used in automotive applications?

Yes - it is qualified to AEC-Q100 Grade 2 (–40 °C to +105 °C) and Grade 3 (–40 °C to +85 °C). Its 20-year data retention, 100K endurance, and OTP security registers meet core requirements for instrument clusters, body control modules, and ADAS subsystems where firmware integrity and long service life are mandatory.