Infineon Technologies S25FL064LABBHM023

Overview

S25FL064LABBHM023 from Infineon is a 64 Mb (8 MB) serial NOR flash memory using 65-nm floating gate technology, operating from 2.7 V to 3.6 V, with industrial temperature range (–40°C to +85°C), supporting SPI multi-I/O (SIO/DIO/QIO/QPI), DDR read modes, and uniform 4 KB/32 KB/64 KB erase sectors. It enables XIP execution and code shadowing in space-constrained embedded systems.

For engineers reviewing the S25FL064LABBHM023 datasheet, S25FL064LABBHM023 pinout, S25FL064LABBHM023 application, or S25FL064LABBHM023 equivalent, key selection factors include Quad I/O read bandwidth (54 MBps), 100,000 program-erase cycles, SFDP support for auto-configuration, security region protection, and SOIC-16 package compatibility with legacy S25FL-A/S25FL1-K families.

Technical Context

This device implements a serial peripheral interface with configurable clock polarity/phase (modes 0 and 3), supports both single-data-rate (SDR) and double-data-rate (DDR) command execution on QIO and QPI buses, and uses Serial Flash Discoverable Parameters (SFDP) v1.5 for runtime configuration negotiation. Its architecture includes a 256-byte page programming buffer and hardware-supported erase suspend/resume across all sector/block sizes.

The memory array is organized into uniform 4 KB sectors (2048 total), with optional extended 32-bit addressing for future scalability. Security features include four dedicated 256-byte non-volatile Security Regions outside main array, individual block lock, pointer region control, and power-supply lock-down for Regions 2–3 - all enforced via Status and Configuration Register protection bits.

Key Specifications

Pinout & Package

Package: 16-lead SOIC 300 mil (SO3016), Pb-free, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S25FL064LABBHM023, the Infineon WSON variant offers identical functionality in a smaller footprint, while the Micron part sacrifices security, DDR, and SFDP for lower unit cost - making the original optimal for industrial and automotive designs needing verified reliability and firmware integrity.

Availability

S25FL064LABBHM023 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot memory, and network router configuration storage requiring stable component supply across multi-year production cycles.

Supply support for S25FL064LABBHM023 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

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive ICs, and secure microcontrollers, with global manufacturing and quality certification to ISO/TS 16949 and AEC-Q200 standards.

The FL-L family targets high-reliability embedded systems requiring robust, scalable serial NOR flash with enhanced security and DDR performance - designed specifically for automotive, industrial, and networking applications demanding long-term supply stability.

FAQ

What is the maximum clock frequency supported in QPI DDR mode?

The S25FL064LABBHM023 supports DDR Quad Read at up to 54 MHz clock frequency, delivering 54 MBps effective read bandwidth by transferring data on both rising and falling edges of the clock signal. This is specified in Table 2 of the official Infineon datasheet (Rev. *H), and requires proper impedance-controlled PCB routing and termination to maintain signal integrity.

Does this part support 32-bit addressing for >16 MB memory maps?

Yes, the S25FL064LABBHM023 supports extended 32-bit addressing via the Bank Address Register (BAR) and Extended Address Register (EAR), enabling access beyond the default 24-bit 16 MB limit. This capability is documented in Section 6.1 and Section 8.4 of the datasheet and is essential for future-proofing firmware partitions in scalable system designs.

How many Security Regions are implemented, and what is their physical location?

The device implements four independent 256-byte Security Regions located outside the main flash array address space, starting at 0x00000000 in the Security Regions address space (Section 6.5). Each region is individually lockable and accessible only through dedicated security commands - they are physically isolated from user-programmable sectors to prevent accidental corruption.

Is SOIC-16 pinout compatible with earlier S25FL-A series devices?

Yes, the SOIC-16 pinout of S25FL064LABBHM023 is footprint-compatible with S25FL-A, S25FL1-K, and S25FL-P families, sharing identical pin assignments for CS#, DO, WP#, VSS, SI, SCK, HOLD#, and VCC. This enables drop-in replacement in existing designs without PCB revision, provided firmware supports the extended command set and SFDP parsing.