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

Infineon Technologies S29GL256N10TFI020

Name: S29GL256N10TFI020
Brand: Infineon Technologies
SKU: S29GL256N10TFI020
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S29GL256N10TFI020

Manufacturer:: Infineon Technologies

Category:: Memory

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

Datasheet:: S29GL256N10TFI020.pdf

Description:: IC FLASH 256MBIT PARALLEL 56TSOP

Quantity:: RFQ Add To RFQ list

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Inventory:3,123

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Product details

Overview

S29GL256N10TFI020 from Cypress Semiconductor is a 256 Mbit (33,554,432-byte), 3.0 V single-power-supply NOR Flash memory using 110 nm MirrorBit technology, organized in 256 × 64 Kword (128 Kbyte) sectors, with 90 ns access time, 25 ns page read time, and 100,000 erase cycles per sector - deployed in boot code storage for industrial control systems requiring deterministic read latency and secure firmware persistence.

For engineers reviewing the S29GL256N10TFI020 datasheet, S29GL256N10TFI020 pinout, S29GL256N10TFI020 application, or S29GL256N10TFI020 equivalent, key selection criteria include JEDEC-compliant command set support, Secured Silicon Sector with 128-word electronic serial number, Enhanced VersatileI/O™ (VIO = 1.65–3.6 V), and hardware reset (RESET#) integration for system-level firmware recovery.

Technical Context

This device implements a parallel NOR Flash architecture with separate CE#, OE#, and WE# controls, enabling true random-access reads and sector-erase granularity. It supports both 8-bit and 16-bit data bus operation via BYTE# input and uses hot-electron injection for programming and hot-hole assisted erase at the sector level.

Its CFI-compliant interface allows automatic device identification by host systems, while Program/Erase Suspend/Resume features permit interleaved read operations during active flash updates - critical for real-time embedded applications where background firmware validation must coexist with foreground execution.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Density	256 Mbit (33,554,432 bytes), organized as 256 × 64 Kword sectors - enables full bootloader + configuration + fail-safe image storage in one device.
Access Time	90 ns (VCC = 3.0–3.6 V, VIO = 3.0–3.6 V) - guarantees sub-100 ns instruction fetch latency for ARM Cortex-M4/M7 boot ROM execution.
Page Read Time	25 ns - reduces cumulative latency when reading contiguous 8-word pages during firmware initialization sequences.
Erase Endurance	100,000 cycles per sector - supports field-upgradable firmware with multi-year update cadence in telecom edge nodes.
Data Retention	20 years typical - ensures long-term integrity of calibration data and security keys without refresh.
VIO Range	1.65 V to VCC - allows direct interfacing with 1.8 V or 3.3 V host buses without level shifters.
Standby Current	1 µA typical - minimizes quiescent power in always-on industrial gateways during sleep states.

Pinout & Package

Supplied in a 56-pin TSOP (Thin Small Outline Package) with standard parallel address/data bus layout and dedicated control signals for CE#, OE#, WE#, RESET#, RY/BY#, WP#/ACC, and BYTE#.

Pin/Terminal	Circuit Role	Design Meaning
A0–A23	Address Inputs	24-bit address bus supporting full 256 Mbit addressing (A23 = MSB); A0–A1 select byte vs. word access when BYTE# is asserted.
DQ0–DQ15	Data I/O	16-bit bidirectional data bus; operates as 8-bit when BYTE# = low - simplifies migration from legacy 8-bit microcontrollers.
CE#	Chip Enable	Active-low chip select enabling device decoding in multi-peripheral memory maps; supports alternate CE#-controlled erase/program timing.
OE#	Output Enable	Active-low control for output buffer gating; decouples read timing from address setup, enabling pipelined reads.
WE#	Write Enable	Active-low signal initiating internal latching of addresses/data for command execution - essential for JEDEC-standard write cycle compliance.
RESET#	Hardware Reset	Asynchronous active-low reset that terminates ongoing program/erase and returns device to read mode - synchronizes flash state with system power-on reset.
RY/BY#	Ready/Busy Output	Open-drain status indicator signaling active programming/erasing; used for polling-free interrupt-driven firmware update coordination.
WP#/ACC	Write Protect / Accelerated Program	Multi-function pin: low = sector protection; high-voltage = accelerated programming for factory throughput - eliminates need for external HV supply in production lines.
BYTE#	Bus Width Select	Configures DQ0–DQ7 as data bus (BYTE# = low) or DQ0–DQ15 as full width (BYTE# = high) - enables flexible host interface design.
VIO	I/O Voltage Reference	Sets input threshold and output drive levels for all address/control/data pins - enables mixed-voltage system interoperability without external translators.

Key Features

Feature	Design Value
Secured Silicon Sector	128-word (256-byte) factory- or customer-lockable region with 8-word electronic serial number - provides immutable device identity for secure boot chain binding.
Password Sector Protection	User-defined 64-bit password required to unlock protected sectors - prevents unauthorized firmware modification in deployed medical devices.
Program/Erase Suspend	Pause active programming/erasing to read/program other sectors - enables concurrent firmware validation and update in real-time OS environments.
Enhanced VersatileI/O™	VIO pin sets all I/O voltage thresholds from 1.65 V to VCC - eliminates level shifters in 1.8 V FPGA or SoC interfaces.
CFI Compliance	Standardized query table accessible via command sequence - enables auto-detection and driver configuration in Linux MTD and U-Boot environments.

Applications

Industrial PLC Firmware Storage

Automotive ADAS Boot Memory

Use Scenario: Storing boot firmware, configuration tables, and safety-critical runtime parameters in programmable logic controllers operating in extended temperature ranges (−40°C to +85°C).

IC Role / Device Role / Timing Role: Primary nonvolatile code storage with deterministic 90 ns read access and hardware reset synchronization for safe cold-start recovery.

Use Value: 20-year data retention and 100,000 erase cycles ensure firmware integrity across 15+ year product lifecycles without field replacement.

Use Scenario: Holding boot code and sensor calibration data for radar processing units in autonomous driving systems requiring ASIL-B compliance.

IC Role / Device Role / Timing Role: Secure boot ROM with Secured Silicon Sector providing tamper-evident device identity and password-protected update partitions.

Use Value: Password Sector Protection prevents malicious reprogramming; RY/BY# output enables precise timing of firmware validation before CPU release.

Telecom Base Station Configuration

Medical Imaging System Calibration Storage

Use Scenario: Storing RF calibration profiles, licensing keys, and field-upgradable DSP firmware in 5G remote radio units exposed to thermal cycling.

IC Role / Device Role / Timing Role: High-reliability configuration store with sector-level erase granularity and Program Suspend for background OTA updates.

Use Value: 25 ns page read time accelerates profile loading during cell handover; VIO compatibility avoids voltage translation in mixed-signal baseband ICs.

Use Scenario: Retaining gamma correction tables, sensor offset compensation values, and regulatory audit logs in FDA-cleared MRI subsystems.

IC Role / Device Role / Timing Role: Tamper-resistant calibration archive with locked Secured Silicon Sector and persistent sector protection.

Use Value: Factory-programmed electronic serial number binds calibration data to specific hardware unit; 1 µA standby current extends battery backup duration.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
S29GL256S10TFI020	Successor part using 90 nm process; 80 ns access time; supports deeper power-down mode (0.1 µA)	Designed for new designs requiring lower latency and reduced standby power	Select for greenfield projects needing extended lifecycle support and improved performance envelope
S29GL256P10TFI020	Legacy 130 nm variant; 110 ns access time; no Secured Silicon Sector or Password Protection	Limited to cost-sensitive applications without security requirements	Accept only for legacy repair or non-secure consumer electronics with existing PCB footprint

Compared with S29GL256N10TFI020, the S29GL256S10TFI020 delivers faster access and lower power but requires updated timing margins in controller firmware; the S29GL256P10TFI020 lacks security features and endurance, making it unsuitable for regulated or upgradable systems.

Availability

S29GL256N10TFI020 is available at Aetrix Electronics and suitable for industrial control, automotive ADAS, telecom infrastructure, and medical imaging systems requiring stable component supply amid end-of-life transitions.

Supply support for S29GL256N10TFI020 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 memory and microcontroller solutions for industrial, automotive, and communications markets.

The S29GL-N family was engineered for deterministic boot code execution and secure firmware storage in mission-critical embedded systems, emphasizing sector-level protection, CFI interoperability, and wide-voltage I/O flexibility.

FAQ

Is S29GL256N10TFI020 still recommended for new designs?

No. Cypress explicitly states this part is "Not Recommended for New Design" and recommends migrating to S29GL256S10TFI020 for new projects. The N-series remains available for legacy support and repair, with documented timing, command set, and package compatibility - but no future revisions or extended lifecycle assurance.

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

In normal operation, WP#/ACC serves dual roles: when held low, it protects the first or last sector from accidental writes; when driven to VCC + 2.5 V (via external charge pump), it accelerates programming time by increasing internal current - a feature intended for high-throughput factory programming, not field use.

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 to prevent any further writes or erases. It contains an 8-word electronic serial number programmed at manufacture and accessible only via a specific command sequence - unlike standard sectors, it cannot be unlocked or modified once secured.

Can S29GL256N10TFI020 operate with a 1.8 V host interface?

Yes, via the VIO pin. When VIO is set to 1.8 V, all input thresholds and output drive levels conform to 1.8 V logic, allowing direct connection to 1.8 V FPGAs or ASICs without level shifters - provided VCC remains within 2.7–3.6 V for core flash operation.

S29GL256N10TFI020 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: GL-N

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, 16M x 16

Memory Interface:: Parallel

Clock Frequency:: -

Write Cycle Time - Word, Page:: 100ns

Access Time:: 100 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

S29GL256N10TFI020 FAQ

1.How can I place an order for S29GL256N10TFI020 through Aetrix?

Please submit a Request for Quotation (RFQ) for S29GL256N10TFI020 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 S29GL256N10TFI020 reliable?

The price and inventory of S29GL256N10TFI020 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S29GL256N10TFI020 is usually 5 days.

3.What payment methods are accepted for S29GL256N10TFI020?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S29GL256N10TFI020 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S29GL256N10TFI020?

S29GL256N10TFI020 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S29GL256N10TFI020 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 S29GL256N10TFI020?

For technical support, including S29GL256N10TFI020 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S29GL256N10TFI020 requirements.

6.How does Aetrix verify that S29GL256N10TFI020 is sourced from the original manufacturer or authorized distributors?

All S29GL256N10TFI020 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 S29GL256N10TFI020 meets industry standards.

7.What is the process for return or replacement of S29GL256N10TFI020?

All S29GL256N10TFI020 units undergo pre-shipment inspection (PSI). If there is an issue with S29GL256N10TFI020, 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 S29GL256N10TFI020 part is unused and in its original packaging.

Return procedure for S29GL256N10TFI020:

1.Submit a request within 90 days.

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

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