Infineon Technologies S29GL256P11TAIV10

Overview

S29GL256P11TAIV10 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. It delivers 110 ns random access time and 25 ns page access time, features a 32-word/64-byte write buffer, uniform 64 Kword sectors (256 total), and supports CFI for standardized interface. It is used in industrial embedded systems requiring reliable nonvolatile storage with sector-level protection.

For engineers reviewing the S29GL256P11TAIV10 datasheet, S29GL256P11TAIV10 pinout, S29GL256P11TAIV10 application, or S29GL256P11TAIV10 equivalent, key selection criteria include VIO-compatible I/O voltage range (1.65–VCC), WP#/ACC acceleration support, Secured Silicon Sector with factory-programmable serial number, and industrial temperature rating (–40°C to +85°C).

Technical Context

This device operates in word (16-bit) or byte (8-bit) configuration via BYTE# input and uses VersatileI/O™ architecture where all signal levels are referenced to VIO (1.65–VCC), independent of VCC (2.7–3.6 V). It implements hardware reset (RESET#), ready/busy status (RY/BY#), and suspend/resume for program/erase operations.

It supports two advanced sector protection methods - persistent lock bits and password-based protection - and includes a dedicated Secured Silicon Sector (128-word/256-byte) with factory- or customer-lockable 8-word electronic serial number. Command execution follows JEDEC-standard sequences with unlock bypass mode for accelerated programming.

Key Specifications

Pinout & Package

Package: 56-pin TSOP (Standard Thin Small Outline Package, TSO56), lead-free (Pb-free), industrial temperature grade.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S29GL256S11TFIV10, this TSOP variant offers easier prototyping and rework; versus MX29GL256FHI-11G, it adds VIO flexibility and hardware-enforced device identity-critical for secure boot and regulatory traceability.

Availability

S29GL256P11TAIV10 is available at Aetrix Electronics and suitable for industrial HMI panels, telecom base station firmware storage, and railway signaling controllers requiring stable component supply across extended product lifecycles.

Supply support for S29GL256P11TAIV10 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 series targets embedded systems needing robust, pin-compatible NOR Flash with enhanced security, mixed-voltage I/O, and long-term data integrity-especially where firmware authenticity and field upgrade safety are mandated.

FAQ

What is the function of the VIO pin on the S29GL256P11TAIV10?

VIO sets the reference voltage for all input thresholds and output drive levels, allowing the device to interface directly with 1.8 V, 2.5 V, or 3.3 V logic without external level shifters. It operates from 1.65 V to VCC (2.7–3.6 V), decoupling I/O signaling from core VCC supply variations.

Does the S29GL256P11TAIV10 support both word and byte addressing modes?

Yes. The BYTE# pin selects bus width: at VIH, the device operates in 16-bit word mode with DQ0–DQ15 active; at VIL, it switches to 8-bit byte mode where DQ0–DQ7 are active and DQ15/A-1 becomes the LSB address input (A-1), enabling flexible memory mapping.

How does the Secured Silicon Sector work, and can it be programmed in-system?

The Secured Silicon Sector is a dedicated 128-word region containing an 8-word electronic serial number. It can be programmed and permanently locked either at the factory or by the customer using standard command sequences. Once locked, contents are read-only and immune to erase commands.

What is the purpose of the WP#/ACC pin beyond write protection?

When driven to VHH (~11.5 V), WP#/ACC activates Acceleration mode, automatically placing the device in Unlock Bypass mode and reducing single-word programming time from 60 µs to 13.5 µs. This is used exclusively during high-throughput manufacturing programming, not in normal system operation.