Infineon Technologies S29GL256P11TFIV23

Overview

S29GL256P11TFIV23 from Cypress Semiconductor is a 256 Mbit (32 MB) 3.0 V-only Page Mode Flash memory IC fabricated on 90 nm MirrorBit process technology, featuring 256 uniform 64 Kword (128 Kbyte) sectors, 25 ns page access time, and 32-word write buffer for accelerated multi-word programming. It operates across industrial temperature range (–40°C to +85°C), supports VersatileI/O™ with VIO = 1.65–VCC, and is packaged in 56-pin TSOP for embedded boot code and firmware storage applications.

For engineers reviewing the S29GL256P11TFIV23 datasheet, S29GL256P11TFIV23 pinout, S29GL256P11TFIV23 application, or S29GL256P11TFIV23 equivalent, key selection criteria include sector architecture uniformity, VIO voltage flexibility, WP#/ACC dual-function pin behavior, Ready/Busy# status signaling, and CFI-compliant interface compatibility in space-constrained industrial control systems.

Technical Context

This device implements a synchronous/asynchronous hybrid command-set architecture with dedicated state control logic, erase voltage generator, and PGM voltage generator enabling embedded erase and program algorithms. Its block diagram integrates X/Y decoders, sector switches, and data gating aligned to a 23-bit address bus (A22–A0), supporting both word (DQ0–DQ15) and byte (DQ0–DQ7 + DQ15/A-1) configurations via BYTE# input.

The VersatileI/O™ control scheme decouples I/O voltage (VIO) from core supply (VCC), allowing interface level translation between 1.65 V and VCC (2.7–3.6 V); RY/BY# provides open-drain status feedback during active erase/program cycles, while RESET# enables hardware-initiated return to read mode without power cycle.

Key Specifications

Pinout & Package

Package: 56-pin Thin Small Outline Package (TSOP), standard pinout (TSO56), body size 18.4 mm × 10.16 mm × 1.2 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S29GL256S11TFIV20 and MX29GL256FHI-90G, the S29GL256P11TFIV23 uniquely combines industrial temperature tolerance, VersatileI/O™ voltage scaling, and Secured Silicon Sector - making it the only choice for secure, field-upgradable embedded systems requiring mixed-voltage interoperability and long-term data integrity.

Availability

S29GL256P11TFIV23 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ECU boot memory, and medical imaging system BIOS requiring stable component supply and long-lifecycle support.

Supply support for S29GL256P11TFIV23 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-performance memory, microcontrollers, and connectivity solutions for industrial, automotive, and consumer markets.

The S29GL-P series was designed specifically for embedded systems requiring robust, high-density parallel NOR flash with advanced protection, secure identity, and flexible I/O voltage operation - targeting boot code, firmware, and configuration storage in mission-critical applications.

FAQ

What is the function of the WP#/ACC pin on S29GL256P11TFIV23?

The WP#/ACC pin serves two distinct roles: at VIL, it protects the highest or lowest address sector from accidental program/erase; at VHH (12 V), it enables Unlock Bypass Program mode, accelerating production programming throughput by eliminating command overhead per word. Internal pull-up ensures safe default VIH state when unconnected.

Does S29GL256P11TFIV23 support byte-wide data access?

Yes - the BYTE# input selects bus width: at VIL, the device operates in byte mode with DQ0–DQ7 active and DQ15/A-1 repurposed as LSB address; at VIH, it operates in word mode with full 16-bit DQ0–DQ15 data path. This enables compatibility with both 8-bit and 16-bit host processors without external glue logic.

How does the Secured Silicon Sector work in practice?

The Secured Silicon Sector is a dedicated 128-word (256-byte) region that can be factory-programmed with a unique Electronic Serial Number (ESN) and permanently locked. Once locked, its contents cannot be altered or read back, providing immutable device identity for anti-counterfeiting, license enforcement, or regulatory traceability in medical and industrial systems.

Can S29GL256P11TFIV23 be used in a 1.8 V I/O system?

Yes - with VIO supplied at 1.8 V and VCC at 2.7–3.6 V, all address, control, and data signals operate at 1.8 V logic levels per VersatileI/O™ specification. This allows direct connection to 1.8 V microcontrollers without level shifters, while maintaining full 256 Mbit density and 25 ns page access performance.