Infineon Technologies S29GL128P90TAIR10

Overview

S29GL128P90TAIR10 from Cypress Semiconductor is a 128 Mbit (16 MB) single-voltage 3.0 V page-mode NOR Flash memory fabricated on 90 nm MirrorBit process technology, featuring 90 ns random access time, 25 ns page access time, and uniform 64 Kword (128 Kbyte) sector architecture with 128 sectors. It supports VersatileI/O™ (VIO = 1.65–VCC), write buffer programming (up to 64 bytes), and secured silicon sector with electronic serial number for device identification in embedded boot code storage.

For engineers reviewing the S29GL128P90TAIR10 datasheet, S29GL128P90TAIR10 pinout, S29GL128P90TAIR10 application, or S29GL128P90TAIR10 equivalent, key selection criteria include industrial temperature range (–40°C to +85°C), TSOP-56 package compatibility, CFI compliance, Advanced Sector Protection (persistent/password), and hardware reset (RESET#) and ready/busy (RY/BY#) signaling for real-time operation monitoring.

Technical Context

This NOR Flash implements a synchronous-compatible command-set architecture with autoselect, page read, and unlock bypass programming modes. Its internal state machine handles embedded erase and program algorithms, while VersatileI/O™ decouples I/O voltage (VIO) from core supply (VCC), enabling interoperability with 1.8 V/2.5 V/3.3 V logic interfaces without level shifters.

The device integrates dedicated erase voltage and programming voltage generators, hardware reset recovery, and status bits (DQ7/DQ6) for polling-based operation control. Secured Silicon Sector provides factory- or customer-programmable 256-byte identity region with lock capability, and WP#/ACC input enables both sector write protection and VHH-accelerated programming during production.

Key Specifications

Pinout & Package

Package: 56-pin Thin Small Outline Package (TSOP-II, standard pinout, lead-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 S29GL128S90TFIR20, the TSOP-56 package of S29GL128P90TAIR10 enables easier rework and socket-based validation; versus MX29GL128FPTI-90G, Cypress offers longer documented lifecycle support and integrated secured silicon features not present in the Macronix variant.

Availability

S29GL128P90TAIR10 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive instrument cluster boot memory, and medical diagnostic imaging UI requiring stable component supply, long-term obsolescence management, and full traceability.

Supply support for S29GL128P90TAIR10 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-reliability memory, PSoC, and USB-C solutions for industrial, automotive, and IoT markets.

The S29GL-P series was designed specifically for embedded systems requiring robust, pin-compatible NOR Flash with advanced security, mixed-voltage I/O, and production-ready programming acceleration - targeting boot code, firmware, and configuration storage where data integrity and longevity are non-negotiable.

FAQ

What is the function of the WP#/ACC pin on S29GL128P90TAIR10?

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 accelerated programming mode and automatically enters unlock bypass, reducing write time per word to 13.5 µs. It has an internal pull-up, so leaving it unconnected defaults to VIH (normal operation).

Does S29GL128P90TAIR10 support both 8-bit and 16-bit data bus configurations?

Yes. The BYTE# pin controls bus width: when pulled low, the device operates in 8-bit mode with DQ0–DQ7 active and DQ15/A-1 repurposed as address bit A-1; when high, it operates in 16-bit mode with DQ0–DQ15 active. This dual-mode capability ensures compatibility with legacy 8-bit microcontrollers and modern 16/32-bit SoCs without redesign.

How does the Secured Silicon Sector enhance system security?

The Secured Silicon Sector is a dedicated 256-byte region containing an 8-word (16-byte) electronic serial number that can be permanently locked by the factory or user. Once locked, contents cannot be altered or read without proper unlock sequence, enabling device authentication, anti-counterfeiting, and secure binding of firmware to hardware identity - critical for regulated medical and industrial deployments.

Can S29GL128P90TAIR10 be used in place of older S29GL128N devices?

No. Although both are 128 Mbit NOR Flash, S29GL128P uses 90 nm MirrorBit process with VersatileI/O™, write buffer, and enhanced sector protection, while S29GL128N is built on 110 nm process without VIO support or CFI compliance. Pinouts differ (e.g., VIO presence), and command sets are incompatible - firmware and hardware redesign would be required for migration.