Infineon Technologies S29GL256P11FAIV20

Overview

S29GL256P11FAIV20 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 CFI, and integrates Secured Silicon Sector with factory- or customer-programmable 128-word electronic serial number.

For engineers reviewing the S29GL256P11FAIV20 datasheet, S29GL256P11FAIV20 pinout, S29GL256P11FAIV20 application, or S29GL256P11FAIV20 equivalent, key selection criteria include VersatileI/O™ voltage flexibility (VIO = 1.65–VCC), WP#/ACC dual-function pin behavior, sector erase endurance (100,000 cycles), 20-year data retention, and support for suspend/resume during program/erase operations.

Technical Context

This device implements a synchronous/asynchronous hybrid interface with dedicated CE#, OE#, and WE# control lines, enabling standard NOR Flash read and write protocols. Its architecture includes an 8-word page read buffer and a 32-word write buffer, allowing burst programming of up to 64 bytes per command sequence without intermediate polling.

The VersatileI/O™ feature decouples I/O voltage (VIO) from core supply (VCC), supporting mixed-voltage system interfacing where VIO ranges from 1.65 V to VCC (2.7–3.6 V). Sector protection employs both persistent lock bits and password-based methods, while RY/BY# provides hardware status signaling for embedded algorithm completion.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with S29GL256S11FAIV20 and MX29GL256FHI-90G, the S29GL256P11FAIV20 uniquely combines VersatileI/O™ voltage adaptability, factory-lockable Secured Silicon Sector, and 64-ball BGA packaging-making it optimal for compact, secure, mixed-voltage embedded systems requiring long-term firmware integrity.

Availability

S29GL256P11FAIV20 is available at Aetrix Electronics and suitable for industrial HMI firmware storage, automotive ECU boot code, and network router configuration requiring stable component supply across extended product lifecycles.

Supply support for S29GL256P11FAIV20 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 family was designed specifically for embedded systems requiring reliable, high-density NOR Flash with fast random and page access, robust sector protection, and long data retention-targeting applications where code execution-in-place (XIP) and field firmware updates are essential.

FAQ

What is the function of the WP#/ACC pin on S29GL256P11FAIV20?

The WP#/ACC pin serves two distinct roles: at VIL (≤0.8 V), it disables program/erase in the outermost sector for hardware write protection; at VHH (11.5–12.5 V), it accelerates programming throughput and automatically places the device in unlock bypass mode. Internal pull-up ensures safe default VIH state when unconnected.

Does S29GL256P11FAIV20 support execute-in-place (XIP) operation?

Yes, S29GL256P11FAIV20 supports XIP via standard NOR Flash asynchronous read protocol. Its 90 ns random access time (at regulated VCC) and 25 ns page access enable direct code execution from flash without copying to RAM, reducing system memory footprint and boot latency.

How many address lines does S29GL256P11FAIV20 require?

S29GL256P11FAIV20 requires 24 address lines (A23–A0) to access its full 256 Mbit capacity. This matches the 32 MB address space (2²⁴ × 2 bytes), with A23 as the most significant address bit. The BGA pinout allocates A23 to ball G1 per the LAA064 connection diagram.

Can the Secured Silicon Sector be reprogrammed after factory locking?

No-the Secured Silicon Sector can be permanently locked either at the factory or by the customer using specific command sequences; once locked, the 128-word region becomes read-only and cannot be erased or rewritten. Unlocking requires physical device replacement, ensuring tamper-evident identity storage.