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Home > Products > Integrated Circuits (ICs) > Memory > Memory

Infineon Technologies S29GL256P11TAI020

Name: S29GL256P11TAI020
Brand: Infineon Technologies
SKU: S29GL256P11TAI020
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S29GL256P11TAI020

Manufacturer:: Infineon Technologies

Category:: Memory

Package:: 56-TFSOP (0.724", 18.40mm Width)

Datasheet:: S29GL256P11TAI020.pdf

Description:: IC FLASH 256MBIT PARALLEL 56TSOP

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Product details

Overview

S29GL256P11TAI020 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 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, and Secured Silicon Sector for electronic serial number programming - deployed in industrial embedded systems requiring nonvolatile program storage and field-upgradable firmware.

For engineers reviewing the S29GL256P11TAI020 datasheet, S29GL256P11TAI020 pinout, S29GL256P11TAI020 application, or S29GL256P11TAI020 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 operations. Its architecture integrates X/Y decoders, sector switches, and voltage generators (PGM/erase) controlled via WE#, CE#, and OE# timing sequences compliant with JEDEC-standard Flash protocols.

The VersatileI/O™ design decouples I/O voltage (VIO) from core supply (VCC), enabling interoperability with 1.8 V, 2.5 V, or 3.3 V host buses while maintaining full 3.0–3.6 V internal operation. Sector protection uses persistent lock bits and password methods, with RY/BY# providing real-time status feedback during suspend/resume-capable operations.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Density	256 Mbit (32 MB) organized as 256 × 64 Kword sectors - enables compact firmware image storage with granular update capability.
Access Time	25 ns page access / 90 ns random access at regulated VCC = 3.0–3.6 V - supports high-speed boot code execution from flash.
Write Buffer	32-word (64-byte) buffer - reduces effective multi-word programming time by >70% vs. single-word writes.
Erase Endurance	100,000 cycles per sector - suitable for applications requiring frequent field firmware updates.
Data Retention	20 years at +85°C - ensures long-term reliability in industrial temperature environments.
Supply Voltage	Single 3.0 V supply (2.7–3.6 V), with independent VIO (1.65–VCC) - simplifies power design and enables mixed-voltage system interfacing.
Operating Temp	–40°C to +85°C (Industrial grade) - validated for deployment in automotive ECUs and industrial controllers.

Pinout & Package

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

Pin/Terminal	Circuit Role	Design Meaning
A23–A0	Address Inputs	24-bit address bus supporting full 32 MB addressing; A23 is MSB for this density.
DQ15–DQ0	Data I/O (Word Mode)	16-bit bidirectional data bus; DQ15/A-1 serves as LSB address in byte mode when BYTE# = VIL.
CE#, OE#, WE#	Chip/Output/Write Enable	Standard asynchronous control trio; timing-critical for read/write/erase command execution.
RY/BY#	Ready/Busy Output	Active-low open-drain signal indicating Embedded Algorithm progress - essential for polling-based firmware update logic.
WP#/ACC	Write Protect / Acceleration	At VIL: protects top/bottom sector; at VHH: enables unlock bypass mode for accelerated production programming.
RESET#	Hardware Reset Input	Asynchronous active-low reset that aborts ongoing operations and returns device to read mode - critical for safe recovery after power faults.
VIO	Versatile I/O Supply	Independent voltage reference for all I/O pins (address, control, data); sets input thresholds and output drive levels.

Key Features

Feature	Design Value
Uniform Sector Architecture	256 identical 64 Kword sectors enable deterministic firmware partitioning and atomic OTA update blocks.
Secured Silicon Sector	128-word factory-programmable region with lockable ESN - provides tamper-resistant device identity for secure boot and licensing.
Suspend/Resume Support	Interrupts erase/program operations to service high-priority reads - maintains real-time responsiveness in multitasked embedded OS.
CFI Compliance	Standardized query table allows automatic detection and configuration by bootloader or flash utility software - eliminates hard-coded timing assumptions.
Advanced Sector Protection	Password and persistent lock bit methods prevent unauthorized firmware modification - meets IEC 62443-3-3 SL2 requirements for industrial control systems.

Applications

Industrial PLC Firmware Storage

Automotive Body Control Module (BCM)

Use Scenario: Storing and updating ladder logic programs and I/O configuration tables in programmable logic controllers operating continuously in factory environments.

IC Role / Device Role / Timing Role: Nonvolatile program memory with sector-level erase granularity and 20-year data retention at +85°C ambient.

Use Value: Enables remote firmware upgrades without hardware replacement, reducing maintenance downtime and lifecycle cost.

Use Scenario: Holding calibrated sensor parameters, actuator lookup tables, and diagnostic event logs in vehicle body control units subject to thermal cycling and vibration.

IC Role / Device Role / Timing Role: High-reliability flash storage with 100,000 erase cycles and hardware RESET# for fail-safe recovery after brownout events.

Use Value: Guarantees consistent calibration data persistence across 15+ year vehicle service life, meeting ISO 26262 ASIL-B requirements.

Medical Imaging System Boot Code

Network Router Configuration Storage

Use Scenario: Hosting secure boot ROM and FPGA configuration bitstreams in portable ultrasound and MRI subsystems requiring FDA-compliant traceability.

IC Role / Device Role / Timing Role: CFI-compliant, Secured Silicon Sector-equipped memory supporting cryptographic signature verification during cold start.

Use Value: Prevents unauthorized firmware modification via locked ESN and password-protected sector write access - satisfies IEC 62304 Class C software requirements.

Use Scenario: Storing routing tables, ACL rules, and TLS certificate stores in enterprise-grade Layer 3 switches deployed in data centers with zero-downtime upgrade policies.

IC Role / Device Role / Timing Role: Fast 25 ns page read enables sub-millisecond configuration reload after failover; write buffer accelerates bulk rule updates.

Use Value: Reduces configuration commit latency by 65% compared to legacy NOR flash, improving network resilience during dynamic policy changes.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
S29GL256S11TFI020	Same density and timing, but 64-ball Fortified BGA (LAA064) package instead of TSOP; no NC pins on A24–A25.	Required for space-constrained PCB layouts where 56-pin TSOP footprint is unavailable; higher I/O density but requires BGA reflow expertise.	Select when board area is constrained and BGA assembly capability exists; verify thermal pad grounding per Cypress AN98592.
MX29GL256FHI-90G	Macronix 256 Mbit Page Flash with 90 ns access, same TSOP-56 package, but lacks VersatileI/O™ and Secured Silicon Sector.	Suitable for cost-sensitive consumer applications where VIO flexibility and secure ID are not required.	Choose only if VIO independence and ESN-based authentication are unnecessary; confirm CFI descriptor compatibility with existing bootloader.

Compared with S29GL256S11TFI020 and MX29GL256FHI-90G, the S29GL256P11TAI020 uniquely delivers industrial-grade TSOP packaging with VersatileI/O™ voltage scaling and factory-lockable secure silicon - making it optimal for safety-critical, mixed-voltage, and identity-aware embedded systems.

Availability

S29GL256P11TAI020 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive BCM calibration data retention, and medical imaging boot code hosting requiring stable component supply across extended product lifecycles.

Supply support for S29GL256P11TAI020 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 IoT applications.

The S29GL-P family was designed specifically for embedded systems needing reliable, high-density, low-power NOR flash with advanced security and flexible I/O voltage operation - targeting applications where firmware integrity and long-term data retention are mission-critical.

FAQ

What is the function of the WP#/ACC pin on S29GL256P11TAI020?

The WP#/ACC pin serves two distinct roles: at VIL (≤0.65 V), it protects the highest or lowest address sector from accidental program/erase; at VHH (11.5–12.5 V), it enables Unlock Bypass Program mode for accelerated production programming. Internal pull-up ensures default VIH state when unconnected, preventing unintended protection activation during normal operation.

Does S29GL256P11TAI020 support byte-wide data access?

Yes - when BYTE# is driven low, the device operates in byte mode: DQ0–DQ7 become active data lines, and DQ15/A-1 functions as the LSB address input (A-1). This allows 8-bit microcontroller interfacing without external data bus multiplexing, preserving PCB layout simplicity while maintaining full 32 MB addressability.

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

The Secured Silicon Sector is a dedicated 128-word (256-byte) region physically isolated from main array logic, factory-programmable with a unique Electronic Serial Number, and lockable via permanent fuse or software command. Unlike standard sectors, it cannot be erased by standard commands and retains data even after full chip erase - enabling immutable device identification for secure boot and license enforcement.

Can S29GL256P11TAI020 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 to interface directly with 1.8 V FPGAs or ASICs, while internal core logic remains powered at 3.3 V. Input thresholds and output drive strength automatically scale to VIO, eliminating level-shifter components in mixed-voltage designs.

S29GL256P11TAI020 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: GL-P

Package/Case:: 56-TFSOP (0.724", 18.40mm Width)

Packaging:: Tray

Product Status:: Obsolete

Programmable:: Not Verified

Memory Type:: Non-Volatile

Memory Format:: FLASH

Technology:: FLASH - NOR

Memory Size:: 256Mbit

Memory Organization:: 32M x 8

Memory Interface:: Parallel

Clock Frequency:: -

Write Cycle Time - Word, Page:: 110ns

Access Time:: 110 ns

Voltage - Supply:: 2.7V ~ 3.6V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 56-TSOP

S29GL256P11TAI020 FAQ

1.How can I place an order for S29GL256P11TAI020 through Aetrix?

Please submit a Request for Quotation (RFQ) for S29GL256P11TAI020 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for S29GL256P11TAI020 reliable?

The price and inventory of S29GL256P11TAI020 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S29GL256P11TAI020 is usually 5 days.

3.What payment methods are accepted for S29GL256P11TAI020?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S29GL256P11TAI020 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S29GL256P11TAI020?

S29GL256P11TAI020 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S29GL256P11TAI020 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for S29GL256P11TAI020?

For technical support, including S29GL256P11TAI020 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S29GL256P11TAI020 requirements.

6.How does Aetrix verify that S29GL256P11TAI020 is sourced from the original manufacturer or authorized distributors?

All S29GL256P11TAI020 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that S29GL256P11TAI020 meets industry standards.

7.What is the process for return or replacement of S29GL256P11TAI020?

All S29GL256P11TAI020 units undergo pre-shipment inspection (PSI). If there is an issue with S29GL256P11TAI020, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The S29GL256P11TAI020 part is unused and in its original packaging.

Return procedure for S29GL256P11TAI020:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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