Infineon Technologies S25FL164K0XMFB013

Overview

S25FL164K0XMFB013 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) and integrates three 256-byte OTP security registers, 8-byte unique ID, and hardware/software write protection - deployed in embedded boot code storage and firmware update systems.

For engineers reviewing the S25FL164K0XMFB013 datasheet, S25FL164K0XMFB013 pinout, S25FL164K0XMFB013 application, or S25FL164K0XMFB013 equivalent, key selection criteria include quad-speed XIP capability, AEC-Q100 Grade 2 qualification, SFDP compliance, and migration path to S25FL064L for new designs.

Technical Context

This device implements a 90 nm floating gate architecture with SPI-MIO support for Single/Dual/Quad I/O protocols using only four to six pins (CS#, SCK, IO0–IO3). Its command set is footprint- and instruction-compatible with prior S25FL-K families but adds variable dummy-cycle latency and volatile configuration register support.

The memory array is organized as 128 × 64 kB blocks, enabling flexible partitioning for boot code, parameter storage, and firmware images. Security features include pointer-based block protection, lock-down-until-power-cycle, and OTP-protected security registers - all controllable via standard SPI commands without external logic.

Key Specifications

Pinout & Package

Package: 8-contact WSON (5 mm × 6 mm, WND008). RoHS-compliant, moisture-sensitive level 3 (MSL3), surface-mountable with exposed pad for thermal dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S25FL164K0XMFB013, S25FL064L offers higher performance and longer retention but removes pin-flexible HOLD#/WP# functionality, while MX25L6433F provides cost-effective drop-in replacement where cryptographic security is handled externally.

Availability

S25FL164K0XMFB013 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot memory, and medical imaging device parameter archive applications requiring stable component supply despite end-of-life status.

Supply support for S25FL164K0XMFB013 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 fast, secure, and pin-efficient SPI flash - bridging the performance gap between legacy serial flash and parallel NOR in resource-constrained environments.

FAQ

Is S25FL164K0XMFB013 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 extended longevity, improved specs, and ongoing technical support.

What does the '0XMFB013' suffix indicate in the part number?

The suffix encodes package and temperature grade: '0X' = commercial temp (–40 °C to +105 °C), 'M' = 8-contact WSON (5 mm × 6 mm), 'F' = lead-free/RoHS, 'B013' = date code (2013, week 01). This matches the WND008 package variant specified in the datasheet for S25FL164K.

Can S25FL164K0XMFB013 operate in Quad I/O mode while using hardware write protection?

No. When Quad I/O mode is enabled, the WP# and HOLD# pins are repurposed as IO2 and IO3, disabling hardware write protection and hold functionality. To retain WP# protection, the device must operate in Single or Dual I/O mode - a hardware trade-off documented in Section 2.7 and 2.8 of the datasheet.

Does this device support Execute-in-Place (XIP) directly from flash?

Yes. The S25FL164K0XMFB013 supports efficient XIP via Continuous Read and Wrapped Read modes, with ≤8-clock overhead per access and 54 MB/s Quad Read throughput - enabling direct execution of ARM Cortex-M or RISC-V code without shadowing to RAM in many real-time applications.