Infineon Technologies S29GL256P11FFIV20

Overview

S29GL256P11FFIV20 from Cypress Semiconductor is a 256 Mbit (32 MB) 3.0 V-only Page Flash memory IC fabricated on 90 nm MirrorBit process technology, featuring 256 uniform 64 Kword (128 Kbyte) sectors, 25 ns page access time, and 110 ns random access time under regulated VCC conditions. It supports VersatileI/O™ with VIO range 1.65–VCC, includes a 32-word write buffer for accelerated multi-word programming, and integrates Secured Silicon Sector with factory- or customer-programmable 8-word electronic serial number - deployed in industrial embedded boot code storage.

For engineers reviewing the S29GL256P11FFIV20 datasheet, S29GL256P11FFIV20 pinout, S29GL256P11FFIV20 application, or S29GL256P11FFIV20 equivalent, key selection criteria include sector architecture compatibility, VIO voltage flexibility, WP#/ACC acceleration support, CFI compliance, and industrial temperature operation (–40°C to +85°C) in Fortified BGA package.

Technical Context

This device implements a synchronous/non-volatile memory controller with integrated erase/program state machines, supporting byte/word configuration via BYTE# input and hardware reset via RESET#. Its VersatileI/O architecture decouples I/O voltage (VIO) from core supply (VCC), enabling interoperability with 1.8 V, 2.5 V, or 3.3 V logic systems while maintaining full 2.7–3.6 V VCC operation.

The memory array uses uniform 64 Kword sectors with 100,000 erase cycles per sector and 20-year data retention. Programming leverages an unlock-bypass command and status bits (RY/BY# output) for real-time operation monitoring; sector protection employs both persistent lock bits and password-based methods compliant with Common Flash Interface (CFI) standard v1.3.

Key Specifications

Pinout & Package

Package: 64-ball Fortified Ball Grid Array (LAA064), 11 mm × 13 mm, 1.0 mm pitch, Pb-free (F), industrial temperature grade (I).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Page Flash memory applications.

Compared with MX29GL256FHI-11G, S29GL256P11FFIV20 provides VIO-driven voltage adaptability and hardware-secured identity; versus S29GL256S11FFIV20, it trades newer process benefits for broader legacy qualification and longer production availability.

Availability

S29GL256P11FFIV20 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive infotainment boot memory, and medical imaging system configuration requiring stable component supply across extended product lifecycles.

Supply support for S29GL256P11FFIV20 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 high-performance memory, microcontrollers, and connectivity solutions for industrial, automotive, and consumer markets.

The S29GL-P series was designed specifically for embedded systems requiring reliable, high-speed parallel NOR flash with advanced security, flexible I/O voltage, and long-term data integrity - targeting boot code, firmware, and configuration storage in mission-critical applications.

FAQ

What is the function of the WP#/ACC pin on S29GL256P11FFIV20?

The WP#/ACC pin serves dual functions: at VIL, it protects the highest or lowest address sector from accidental program/erase; at VHH (12 V), it enables Accelerated Programming mode, automatically placing the device in Unlock Bypass mode to reduce programming time. Internal pull-up ensures safe default behavior when left unconnected.

Does S29GL256P11FFIV20 support byte-level writes?

No - it supports only word (16-bit) or byte (8-bit) data transfers via BYTE# pin selection, but all programming occurs in minimum 16-byte (32-word) write buffer operations or single-word writes. True byte-level programming is not supported; partial-word updates require full-word read-modify-write sequences.

How does the Secured Silicon Sector differ from standard flash sectors?

The Secured Silicon Sector is a dedicated 256-byte region (128 words) with factory- or customer-programmable 16-byte electronic serial number and independent lock mechanism. Once locked, its contents cannot be erased or rewritten, providing immutable device identification and secure key storage distinct from user-accessible flash sectors.

Can S29GL256P11FFIV20 operate with VIO = 1.8 V while VCC = 3.3 V?

Yes - the VersatileI/O™ architecture explicitly supports VIO = 1.65 V to VCC, so VIO = 1.8 V with VCC = 3.3 V is fully compliant. All address, control, and data I/O thresholds scale to VIO, enabling direct connection to 1.8 V logic without level shifters, while core memory operation remains powered by 3.3 V.