Infineon Technologies S29GL256P90FFIR23

Overview

S29GL256P90FFIR23 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, 90 ns random access time, and 25 ns page access time. It operates across –40°C to +85°C industrial temperature range in a 64-ball Fortified BGA (LAA064) package and supports VersatileI/O™ with VIO = 1.65–VCC, making it suitable for embedded boot code storage in industrial controllers and network edge devices.

For engineers reviewing the S29GL256P90FFIR23 datasheet, S29GL256P90FFIR23 pinout, S29GL256P90FFIR23 application, or S29GL256P90FFIR23 equivalent, key selection criteria include sector erase endurance (100,000 cycles), secured silicon sector with programmable 128-word serial number, CFI compliance, hardware reset (RESET#), and WP#/ACC dual-function input for factory acceleration and sector protection.

Technical Context

This device implements a synchronous/asynchronous hybrid interface with dedicated CE#, OE#, and WE# controls, supporting byte/word configuration via BYTE# input and automatic sleep mode for low-power standby (1 µA). Its internal architecture includes an 8-word page read buffer and a 32-word write buffer to accelerate multi-word programming-reducing effective per-word time to 13.5 µs with VHH acceleration.

The flash uses a two-transistor MirrorBit cell structure enabling single-bit-per-cell density with high reliability. Sector protection employs both persistent lock bits and password-based Advanced Sector Protection, while RY/BY# provides real-time status feedback during program/erase operations without requiring polling of status registers.

Key Specifications

Pinout & Package

Package: 64-ball Fortified BGA (LAA064), 11 mm × 13 mm, 1.0 mm pitch, Pb-free (RoHS-compliant).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MX29GL256FHI-90G and S29GL256S90TFI020, the S29GL256P90FFIR23 uniquely delivers VersatileI/O voltage scaling, factory-lockable secured silicon sector, and superior thermal robustness in BGA packaging - making it optimal for production-grade embedded systems demanding security, longevity, and mixed-signal compatibility.

Availability

S29GL256P90FFIR23 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, telecom edge router boot memory, and medical diagnostic imaging control requiring stable component supply across extended product lifecycles.

Supply support for S29GL256P90FFIR23 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-performance, reliable nonvolatile memory and microcontroller solutions for industrial, automotive, and communications markets.

The S29GL-P series was engineered specifically for embedded systems requiring secure, high-endurance, low-power flash memory with flexible I/O voltage support and robust sector protection - targeting boot code, firmware, and configuration storage in mission-critical applications.

FAQ

What is the function of the WP#/ACC pin on S29GL256P90FFIR23?

The WP#/ACC pin serves dual roles: at VIL (≤0.8 V), it protects the highest or lowest 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 lockout.

Does S29GL256P90FFIR23 support byte-wide data access?

Yes - the BYTE# input selects bus width: at VIL, DQ0–DQ7 are active and DQ15/A-1 functions as address LSB for 8-bit mode; at VIH, DQ0–DQ15 operate as a full 16-bit data bus. This allows seamless integration with 8-bit microcontrollers or 16-bit processors without external glue logic.

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

The Secured Silicon Sector is a dedicated 128-word (256-byte) region with factory- or customer-programmable electronic serial number and independent lock mechanism. Once locked, its contents cannot be erased or rewritten - providing immutable device identity for traceability, licensing, or anti-counterfeiting in regulated industries.

Can S29GL256P90FFIR23 be used in systems with 1.8 V I/O interfaces?

No - VIO must be ≥1.65 V and ≤VCC, and VCC minimum is 2.7 V. While VIO can be set as low as 1.65 V, this requires VCC ≥1.65 V (and ≥2.7 V per spec), so true 1.8 V-only I/O is not supported. Systems requiring 1.8 V logic must use level-shifting or select a flash with native 1.8 V I/O compliance.