Infineon Technologies S29GL256P10FAI022

Overview

S29GL256P10FAI022 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 90 ns random access time under regulated VCC. It supports VersatileI/O™ with VIO range 1.65–VCC, 32-word write buffer for accelerated multi-word programming, and Secured Silicon Sector with factory- or customer-programmable 8-word electronic serial number - deployed in industrial embedded controllers requiring nonvolatile firmware storage with sector-level protection.

For engineers reviewing the S29GL256P10FAI022 datasheet, S29GL256P10FAI022 pinout, S29GL256P10FAI022 application, or S29GL256P10FAI022 equivalent, key selection criteria include sector architecture uniformity, VIO-configurable I/O voltage compatibility, WP#/ACC dual-function pin behavior, and CFI-compliant command interface for bootloader integration and field firmware updates.

Technical Context

This device implements a synchronous/asynchronous hybrid command-set architecture with dedicated state control logic, erase/program voltage generators, and internal timers enabling suspend/resume of erase and program operations. Its block diagram integrates X/Y decoders, sector switches, and data gating controlled by CE#, OE#, WE#, and BYTE# to support both word (DQ0–DQ15) and byte (DQ0–DQ7 + A−1) configurations.

The VersatileI/O™ architecture decouples I/O signaling levels from core VCC via the VIO supply, allowing interface compatibility with 1.8 V, 2.5 V, or 3.3 V host systems while maintaining 2.7–3.6 V VCC operation. Sector erase endurance is rated at 100,000 cycles with 20-year data retention, and hardware reset (RESET#) ensures deterministic initialization independent of power sequencing.

Key Specifications

Pinout & Package

Package: 64-ball Fortified BGA (LAA064), 11 × 13 mm, 1.0 mm pitch, Pb-free (F), industrial temperature (−40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar page-mode NOR Flash applications.

Compared with MX29GL256FPTI-90G and S29GL256S10TFI020, the S29GL256P10FAI022 offers superior system integration via VIO scalability and smaller BGA footprint, making it optimal for next-gen industrial and automotive modules where board area and voltage interoperability are critical.

Availability

S29GL256P10FAI022 is available at Aetrix Electronics and suitable for industrial PLCs, automotive instrument clusters, medical diagnostic equipment, and network infrastructure requiring stable component supply across extended product lifecycles.

Supply support for S29GL256P10FAI022 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 microcontroller solutions for industrial, automotive, and communications markets.

The S29GL-P family targets embedded systems needing robust, high-density NOR Flash with advanced protection, fast page access, and flexible I/O voltage operation - optimized for firmware storage in mission-critical edge devices.

FAQ

What is the function of the WP#/ACC pin in S29GL256P10FAI022?

The WP#/ACC pin serves dual roles: at VIL, it protects the highest or lowest sector from accidental program/erase; at VHH (12 V), it enables Unlock Bypass mode, accelerating programming throughput during manufacturing. Internal pull-up ensures safe default (VIH) when unconnected, preventing unintended protection activation.

Does S29GL256P10FAI022 support byte-wide data access?

Yes - asserting BYTE# = VIL configures the device for byte mode, activating only DQ0–DQ7 and repurposing DQ15/A−1 as the LSB address input (A−1). This enables 8-bit microcontroller interfacing without external data bus multiplexing, preserving pin count and simplifying layout.

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

The Secured Silicon Sector is a dedicated 128-word (256-byte) region with permanent lock capability: once locked (via factory or customer command), its contents - including an 8-word electronic serial number - become read-only and immune to erase commands. Unlike standard sectors, it cannot be unlocked after locking, ensuring irreversible identity binding.

Can S29GL256P10FAI022 operate with VIO = 1.8 V while VCC = 3.3 V?

Yes - the VersatileI/O™ specification explicitly permits VIO = 1.65–VCC, so 1.8 V VIO with 3.3 V VCC is fully supported. Input thresholds and output drive levels scale with VIO, enabling direct connection to 1.8 V FPGAs or ASICs without level translators, while maintaining full 3.3 V core functionality and timing performance.