Infineon Technologies S29GL256P10TFI023

Overview

S29GL256P10TFI023 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 (128 Kbyte) 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, includes a 32-word write buffer for accelerated multi-word programming, and integrates secured silicon sector with factory- or customer-programmable 8-word electronic serial number - deployed in industrial embedded control firmware storage.

For engineers reviewing the S29GL256P10TFI023 datasheet, S29GL256P10TFI023 pinout, S29GL256P10TFI023 application, or S29GL256P10TFI023 equivalent, key selection criteria include sector erase endurance (100,000 cycles), 20-year data retention, CFI compliance, hardware reset (RESET#), and WP#/ACC dual-function pin behavior for production acceleration and sector protection.

Technical Context

This device implements a synchronous/non-volatile page-mode flash architecture with dedicated X/Y decoders, erase/program voltage generators, and state control logic enabling suspend/resume during erase or program operations. Its command register interprets CFI-compliant instruction sequences including unlock bypass, autoselect, and advanced sector protection via persistent bits or password methods.

The VersatileI/O™ interface decouples I/O voltage (VIO) from core supply (VCC), allowing DQ, address, and control signal levels to track VIO across 1.65–VCC while maintaining full functionality over VCC = 2.7–3.6 V - critical for mixed-voltage SoC interfacing in industrial gateways and programmable logic controllers.

Key Specifications

Pinout & Package

Package: 56-pin TSOP (Standard Thin Small Outline Package, TSO56), lead-free (Pb-free), industrial temperature grade (–40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with S29GL256S11TFI020 and MX29GL256EHTI-90G, the S29GL256P10TFI023 uniquely combines TSOP compatibility, VersatileI/O™ voltage flexibility, and secured silicon sector - making it optimal for industrial firmware storage where design reuse, mixed-voltage SoC integration, and anti-cloning are mandatory.

Availability

S29GL256P10TFI023 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ECU bootloader memory, and energy meter calibration data requiring stable component supply across extended product lifecycles.

Supply support for S29GL256P10TFI023 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 embedded memory, microcontrollers, and connectivity solutions for industrial, automotive, and IoT markets.

The S29GL-P series was designed specifically for mission-critical embedded applications demanding long data retention, high erase endurance, and robust sector protection - targeting industrial control, automotive telematics, and smart infrastructure systems.

FAQ

What is the function of the WP#/ACC pin on S29GL256P10TFI023?

The WP#/ACC pin serves two distinct functions: at VIL, it disables program/erase operations in the highest or lowest address sector (configurable via model number); at VHH (12 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 safe default VIH state when unconnected.

Does S29GL256P10TFI023 support both byte and word data configurations?

Yes - the BYTE# input selects bus width: at VIL, DQ0–DQ7 are active for 8-bit transfers and DQ15/A-1 becomes the LSB address; at VIH, DQ0–DQ15 operate as a 16-bit data bus. This dual-mode capability allows flexible integration with 8-bit and 16-bit microcontrollers without external data-width conversion logic.

How does the secured silicon sector enhance security in firmware applications?

The secured silicon sector is a dedicated 128-word (256-byte) region that can store an 8-word electronic serial number, which may be factory-programmed and permanently locked or customer-programmed and locked. Once locked, contents cannot be altered or read back - establishing a hardware-rooted identity for secure boot verification and anti-counterfeiting in certified industrial devices.

Can S29GL256P10TFI023 be used in systems with 1.8 V I/O interfaces?

Yes - with VCC = 3.0–3.6 V and VIO = 1.65–VCC, the device supports 1.8 V I/O signaling when VIO is set to 1.8 V. All address, control, and DQ pins track VIO, enabling direct connection to 1.8 V FPGAs or application processors without level shifters, while maintaining full read/write/erase functionality and timing compliance.