Infineon Technologies S25FL064P0XBHI023

Overview

S25FL064P0XBHI023 from Cypress Semiconductor is a 64-Mbit, 2.7–3.6 V SPI flash memory with uniform 64-kB sectors, 4-kB sub-sectors, 256-byte page size, and Quad I/O FAST_READ up to 80 MHz (40 MB/s). It supports accelerated programming via W#/ACC pin, 100,000 erase/program cycles per sector, and 20-year data retention. Used for firmware storage in industrial microcontroller boot systems requiring SPI-compatible nonvolatile code memory.

For engineers reviewing the S25FL064P0XBHI023 datasheet, S25FL064P0XBHI023 pinout, S25FL064P0XBHI023 application, or S25FL064P0XBHI023 equivalent, key selection criteria include sector/sub-sector erase granularity, OTP area (16 bytes + 490 bytes), JEDEC-compliant Device ID, CFI compliance, and dual/quad I/O read modes - all critical for secure, high-speed embedded boot memory design.

Technical Context

The S25FL064P implements a 90-nm MirrorBit® process-based NOR flash architecture with configurable block protection (BP2–BP0 bits), status/configuration registers, and five extended SPI instructions for Dual/Quad I/O and Quad Page Programming. Its memory map comprises 128 × 64-kB sectors, with top/bottom 64-kB parameter blocks subdivided into thirty-two 4-kB sub-sectors.

It operates in standard SPI Mode 0/3, supports Deep Power-Down (3 μA typical), Standby (80 μA), and accelerated programming using 9V on W#/ACC. Command set includes P4E (20h), P8E (40h), SE (D8h), BE (C7h), QPP (38h), QIOR (EBh), and OTPR/OTPP - enabling fine-grained control over program, erase, and identification functions.

Key Specifications

Pinout & Package

Package: 24-ball BGA (6 × 8 mm), 6 × 4 pin configuration, lead-free, low-halogen, industrial temperature grade (–40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar SPI flash memory applications.

Compared with S25FL064P0XBHI023, the S25FL064L0XBHI020 offers SFDP compliance and longer-term supply, while the MX25L6433FZNI-10G trades acceleration and OTP flexibility for lower unit cost and simplified qualification - making each suitable for distinct design maturity and security tiers.

Availability

S25FL064P0XBHI023 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device boot memory, and automotive ADAS camera modules requiring stable component supply despite end-of-life status.

Supply support for S25FL064P0XBHI023 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 nonvolatile memory and microcontrollers for industrial, automotive, and IoT applications, with emphasis on security, longevity, and system-level integration.

The S25FL family targets embedded systems needing SPI flash with advanced features like Quad I/O, sub-sector erase, and OTP security - specifically engineered for firmware storage in safety-critical and long-lifecycle applications.

FAQ

Is S25FL064P0XBHI023 still recommended for new designs?

No. Cypress explicitly states this part is retired and not recommended for new designs. The S25FL064L0XBHI020 is the factory-recommended migration path, offering identical pinout, density, and package with enhanced SFDP support and extended manufacturing availability.

What is the function of the W#/ACC pin beyond write protection?

The W#/ACC pin serves three roles: (1) write protection when pulled low, (2) acceleration trigger when 9V is applied to reduce page program time to ≤1.5 ms, and (3) I/O2 in Quad I/O modes for 4-line data transfer - enabling both security and performance optimization in a single terminal.

How does the OTP area work, and can it be reprogrammed?

The OTP area consists of two regions: 16 bytes (lockable at factory or by customer) and 490 bytes (user-programmable). Once locked, the 16-byte region is permanently immutable; the 490-byte region supports single-write programming only. Both are accessed via OTPP and OTPR commands and retain data for 20 years.

Does S25FL064P0XBHI023 support standard SPI Mode 0 only?

No. It supports both SPI Mode 0 (CPOL = 0, CPHA = 0) and Mode 3 (CPOL = 1, CPHA = 0), as confirmed in Section 6 of the datasheet. Mode selection is fixed by hardware design and must match host controller configuration; no runtime switching is supported.