Infineon Technologies S29GL256P11FFI022

Overview

S29GL256P11FFI022 from Cypress Semiconductor is a 256 Mbit (32 MB), 3.0 V-only page-mode NOR Flash memory 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. It supports VersatileI/O™ with VIO range 1.65–VCC, 32-word write buffer, and Secured Silicon Sector for electronic serial number programming - deployed in industrial embedded controllers requiring nonvolatile program storage and field-upgradable firmware.

For engineers reviewing the S29GL256P11FFI022 datasheet, S29GL256P11FFI022 pinout, S29GL256P11FFI022 application, or S29GL256P11FFI022 equivalent, key selection criteria include sector erase endurance (100,000 cycles), data retention (20 years), CFI compliance, hardware reset (RESET#), and WP#/ACC dual-function pin behavior for factory acceleration and sector protection.

Technical Context

This device implements a synchronous/asynchronous hybrid interface with dedicated command register and state control logic to execute Embedded Algorithms for program/erase. Its architecture includes X/Y decoders, sector switches, and voltage generators for PGM/erase, enabling suspend/resume during operations and status reporting via RY/BY#.

The VersatileI/O™ design decouples I/O voltage (VIO) from core supply (VCC), allowing interface compatibility with 1.8 V, 2.5 V, or 3.3 V logic while maintaining internal 3.0 V operation. Sector protection uses both persistent lock bits and password-based software methods, with WP#/ACC serving dual roles: sector write protection at VIL and programming acceleration at VHH.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with S29GL256S11FFI020 and MX29GL256FHI-11G, the S29GL256P11FFI022 uniquely combines Secured Silicon Sector, VersatileI/O™, and WP#/ACC acceleration - making it optimal for industrial firmware storage where security, interface flexibility, and manufacturing throughput are jointly critical.

Availability

S29GL256P11FFI022 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot memory, and medical imaging system configuration requiring stable component supply across extended product lifecycles.

Supply support for S29GL256P11FFI022 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-performance, low-power memory and microcontroller solutions for industrial, automotive, and consumer applications.

The S29GL-P series targets embedded systems needing reliable, high-density parallel NOR Flash with advanced security, flexible I/O, and production-friendly programming features - optimized for firmware storage in resource-constrained, long-lifecycle devices.

FAQ

What is the function of the WP#/ACC pin on S29GL256P11FFI022?

The WP#/ACC pin serves two distinct functions: at VIL (≤0.4 V), it protects the highest or lowest address sector from accidental program/erase; at VHH (11.5–12.5 V), it accelerates programming by enabling Unlock Bypass mode, reducing single-word programming time from 60 µs to 13.5 µs. Internal pull-up ensures default VIH state when unconnected.

Does S29GL256P11FFI022 support byte-wide data access?

Yes, byte-wide access is supported via the BYTE# input: when pulled low, DQ0–DQ7 become active data lines and DQ15/A-1 functions as the LSB address input (A-1). This enables 8-bit microcontroller interfacing without external data bus demultiplexing, preserving pin count and PCB routing simplicity.

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

The Secured Silicon Sector is a dedicated 128-word (256-byte) region that can be permanently locked at factory or by end-user. Once locked, its contents-including an 8-word Electronic Serial Number-cannot be erased or reprogrammed. Unlike standard sectors, it resides in a physically isolated memory array with independent protection logic, preventing overwrite even during global erase commands.

Can S29GL256P11FFI022 operate with VIO = 1.8 V while VCC = 3.3 V?

Yes, the VersatileI/O™ architecture explicitly supports VIO = 1.65–VCC. With VCC = 3.3 V, VIO may be set to 1.8 V, configuring all address, control, and data pins to 1.8 V logic thresholds and drive levels. This eliminates level-shifting components when interfacing with 1.8 V FPGAs or ASICs while maintaining internal 3.3 V core operation for performance and reliability.