Infineon Technologies S29GL256P11TFI020

Overview

S29GL256P11TFI020 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 25 ns page access time, 110 ns random access time, and uniform 64 Kword (128 Kbyte) sector architecture with 256 sectors. It supports VersatileI/O™ control (VIO = 1.65–VCC), 32-word write buffer programming, and Secured Silicon Sector with factory- or customer-programmable 128-word electronic serial number. Used in industrial embedded systems for firmware storage and boot code retention.

For engineers reviewing the S29GL256P11TFI020 datasheet, S29GL256P11TFI020 pinout, S29GL256P11TFI020 application, or S29GL256P11TFI020 equivalent, key selection criteria include industrial temperature range (–40°C to +85°C), TSOP-56 package compatibility, 2.7–3.6 V single-supply operation, CFI compliance, and hardware reset (RESET#) and ready/busy (RY/BY#) signaling for real-time status monitoring.

Technical Context

This NOR Flash device implements a synchronous command-set architecture with autoselect, page read, and write buffer modes. Its VersatileI/O™ interface decouples I/O voltage (VIO) from core supply (VCC), enabling interoperability with 1.8 V, 2.5 V, or 3.3 V controllers while maintaining 3.0 V core operation.

It integrates advanced sector protection via persistent lock bits and password methods, plus hardware data protection using WP#/ACC input for sector-level write disable or VHH-accelerated programming. The Secured Silicon Sector provides tamper-resistant 256-byte identity storage with programmable/lockable ESN.

Key Specifications

Pinout & Package

Package: 56-pin Thin Small Outline Package (TSOP-II, standard pinout, 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 MX29GL256FHI-90G, S29GL256P11TFI020 adds VIO scalability and tamper-resistant identity; versus S29GL256S11TFI020, it trades BGA miniaturization for TSOP manufacturability and test accessibility - choice hinges on assembly infrastructure and security requirements.

Availability

S29GL256P11TFI020 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive infotainment boot memory, and medical imaging system configuration requiring stable component supply and long-term lifecycle support.

Supply support for S29GL256P11TFI020 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 memory, microcontrollers, and connectivity solutions for industrial, automotive, and consumer markets.

The S29GL-P series was designed specifically for high-reliability embedded boot and firmware storage applications demanding industrial temperature operation, robust data retention, and hardware-enforced security - targeting systems where firmware integrity and long-term supply stability are non-negotiable.

FAQ

What is the function of the WP#/ACC pin on S29GL256P11TFI020?

The WP#/ACC pin serves dual functions: at VIL (≤0.8 V), it protects the highest or lowest address sector from program/erase; at VHH (11.5–12.5 V), it accelerates programming by enabling unlock bypass mode, reducing single-word programming time from 60 µs to 13.5 µs. Internal pull-up ensures default VIH state when unconnected.

Does S29GL256P11TFI020 support byte-wide data access?

Yes - BYTE# input selects bus width: at VIL, DQ0–DQ7 are active and DQ15/A-1 becomes A-1 (LSB address); at VIH, DQ0–DQ15 operate as a 16-bit word bus. This enables flexible integration with 8-bit or 16-bit microcontrollers without external glue logic.

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

The Secured Silicon Sector is a dedicated 256-byte region with factory- or customer-programmable 128-word electronic serial number. Once locked (via command sequence), its contents become read-only and immune to bulk erase - providing hardware-rooted device identity for anti-cloning and firmware attestation in regulated systems.

Can S29GL256P11TFI020 be used in systems with 1.8 V I/O interfaces?

Yes - with VIO = 1.8 V and VCC = 3.0–3.6 V, all input thresholds and output drive levels conform to 1.8 V logic standards while maintaining full 3.0 V core operation. This eliminates level shifters in mixed-voltage SoC designs, verified per VersatileI/O™ specification in datasheet Rev. *B Section 7.3.