Infineon Technologies S29GL256S10FAIV23

Overview

S29GL256S10FAIV23 from Spansion is a 256 Mbit (32 MB) 3.0 V-only page-mode NOR Flash memory IC fabricated on 65 nm MirrorBit Eclipse process technology, featuring 100 ns random access time, industrial temperature range (–40°C to +85°C), and Fortified BGA package (LAA064, 11 mm × 13 mm). It supports sector protection, password-protected boot-block locking, and is used in embedded firmware storage for industrial controllers and network edge devices.

For engineers reviewing the S29GL256S10FAIV23 datasheet, S29GL256S10FAIV23 pinout, S29GL256S10FAIV23 application, or S29GL256S10FAIV23 equivalent, key selection criteria include VIO/VCC voltage flexibility (1.65 V to 3.6 V), DYB power-up state configuration (V2 = lowest-sector protected), and compatibility with legacy 3.0 V NOR Flash interfaces in boot code and BIOS storage designs.

Technical Context

This device implements a synchronous/asynchronous dual-mode interface with page-mode read capability, supporting both standard and enhanced command sets for erase, program, and lock/unlock operations. It integrates hardware-based sector protection logic and supports two VIO configurations: either VIO = VCC (2.7–3.6 V) or VIO = 1.65 V to VCC (with VCC = 2.7–3.6 V).

The LAA064 Fortified BGA package enables high-density PCB layout while maintaining signal integrity for address/data bus timing. The V2 model variant configures the Device Protection Bit (DYB) to power up in the lowest-address-sector-protected state, enabling secure boot initialization without software intervention.

Key Specifications

Pinout & Package

LAA064 Fortified Ball-Grid Array (64-ball, 0.8 mm pitch, 11 mm × 13 mm body), RoHS-compliant, Pb-free, moisture-sensitive level 3 per J-STD-020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S29GL256S10FAIV23, the 90 ns variant trades VIO flexibility for speed, while the V11 alternative matches timing and voltage but requires software adaptation for sector protection defaults-making V2 optimal for secure, drop-in industrial boot memory replacement.

Availability

S29GL256S10FAIV23 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, telecom edge router boot memory, and medical diagnostic imaging control requiring stable component supply over extended product lifecycles.

Supply support for S29GL256S10FAIV23 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

Spansion Inc. was a leading semiconductor company specializing in flash memory and microcontrollers, later acquired by Cypress Semiconductor in 2015 and integrated into Infineon Technologies.

The S29GL-S series targets high-reliability embedded systems requiring long-term firmware storage with hardware security features, emphasizing industrial temperature operation and flexible I/O voltage support.

FAQ

What does the 'V2' suffix indicate in S29GL256S10FAIV23?

The 'V2' denotes the voltage I/O configuration and protection mode: VIO = 1.65 V to VCC, with Device Protection Bit (DYB) powering up in the lowest-address-sector-protected state. This ensures the boot block remains locked immediately after power-on, preventing accidental writes during system initialization or brown-out recovery.

Is S29GL256S10FAIV23 compatible with legacy S29GL-S footprint designs?

Yes-it uses the LAA064 Fortified BGA package identical to other S29GL-S devices in the same density class. Pinout, thermal pad layout, and solder mask specifications match Spansion's documented LAA064 mechanical drawing, enabling direct PCB reuse without redesign.

Does this device support x8 or x32 data bus widths?

No-S29GL256S10FAIV23 is strictly x16 configuration. Its DQ0–DQ15 pins implement a 16-bit bidirectional data bus only; there is no x8 mode or x32 expansion capability. System design must allocate two consecutive address lines for byte-level access within each 16-bit word.

How is password protection implemented in this Flash memory?

Password protection operates via hardware registers: Read Password Mode uses a 16-byte password stored in dedicated lock bits, while PPB (Persistent Protection Bits) mode stores a 16-byte password in nonvolatile memory that persists across power cycles. Both require exact password match before unlocking protected sectors, with no software bypass possible.