Cypress Semiconductor Corp S25FL127SABNFV100

Overview

S25FL127SABNFV100 from Infineon is a 128 Mb (16 MB) serial NOR flash memory IC with SPI Multi-I/O interface, 3.0 V core supply, and 65-nm MIRRORBIT™ Eclipse architecture. It supports Quad Read at up to 54 MBps, 256/512-byte page programming with hardware ECC, and hybrid/uniform sector erase options. Used in industrial embedded boot storage where fast AutoBoot execution and long-term data retention are required.

For engineers reviewing the S25FL127SABNFV100 datasheet, S25FL127SABNFV100 pinout, S25FL127SABNFV100 application, or S25FL127SABNFV100 equivalent, key selection criteria include Quad I/O read bandwidth, OTP array size, AEC-Q100 Grade 2 qualification, hybrid sector erase flexibility, and 20-year data retention compliance.

Technical Context

This device implements a SPI-MIO interface supporting clock modes 0 and 3, with configurable 24- or 32-bit addressing and JEDEC JESD216B SFDP support for automatic parameter discovery. Its internal ECC engine performs single-bit error correction during read operations without software intervention.

The flash array uses MIRRORBIT™ Eclipse architecture with dual-bit-per-cell storage, enabling high density while maintaining program-erase endurance of ≥100,000 cycles per sector. Sector protection is implemented via status register bits, hardware WP#/HOLD# pins, and Advanced Sector Protection (ASP) with password-controlled individual sector locking.

Key Specifications

Pinout & Package

Package: 8-contact WSON (6 mm × 5 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S25FL127SABNFV100, the S25FL128SAGNFI101 offers identical functionality in a different package, while the W25Q128JVSIM trades security, endurance assurance, and performance for lower unit cost-making it viable only in non-safety-critical, non-industrial contexts.

Availability

S25FL127SABNFV100 is available at Aetrix Electronics and suitable for industrial automation, automotive ADAS modules, and medical imaging devices requiring stable component supply, long-term data integrity, and AEC-Q100 Grade 2 qualification.

Supply support for S25FL127SABNFV100 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 MCUs, and high-reliability memory solutions for industrial and automotive markets.

The FL-S family targets high-performance, secure boot memory applications requiring deterministic timing, long data retention, and robust protection mechanisms across extended temperature ranges.

FAQ

What is the maximum clock frequency supported for Quad Read operations?

The S25FL127SABNFV100 supports Quad Read at up to 108 MHz, delivering 54 MBps throughput. This rate is guaranteed across the full Industrial Plus temperature range (–40°C to +105°C) and requires proper PCB layout with controlled impedance and matched trace lengths for all four I/O lines.

Does this device support both 24-bit and 32-bit addressing modes?

Yes, the device supports configurable addressing: 24-bit mode accesses the lower 16 MB directly, while 32-bit mode enables future scalability and compatibility with larger flash families. Address mode is selected via configuration register bit CR[1], and default power-on state is 24-bit.

How is the 1024-byte OTP array used in secure boot implementations?

The OTP array stores immutable values such as public key hashes, root-of-trust certificates, or cryptographic seeds. Once programmed, bits cannot be reset; it is typically written once during manufacturing test and verified during each boot sequence to authenticate firmware signatures before execution.

Is hardware reset (RESET#) available on the WSON package?

Yes, the HOLD#/RESET# pin (Pin 8) provides dual-function capability: when configured via status register bit SR[7], it operates as an active-low hardware reset input that forces the device into a known idle state, independent of CS# deassertion timing.