Infineon Technologies S29GL256P90FFIR20

Overview

S29GL256P90FFIR20 from Cypress Semiconductor is a 256 Mbit (32 MB), 3.0 V-only Page Flash memory fabricated on 90 nm MirrorBit process technology, featuring 25 ns page access time, 90 ns random access time, and uniform 64 Kword (128 KB) sector architecture with 256 sectors. It supports VersatileI/O™ (VIO = 1.65–VCC), 32-word write buffer, and Secured Silicon Sector with factory- or customer-programmable 128-word electronic serial number. Used in industrial embedded systems for firmware storage requiring high endurance and long data retention.

For engineers reviewing the S29GL256P90FFIR20 datasheet, S29GL256P90FFIR20 pinout, S29GL256P90FFIR20 application, or S29GL256P90FFIR20 equivalent, key selection considerations include VIO voltage flexibility, hardware write protection via WP#/ACC, suspend/resume capability during erase/program, CFI compliance, and industrial temperature operation (–40°C to +85°C).

Technical Context

This device operates as a non-volatile NOR Flash memory with byte/word configuration controlled by BYTE# input, supporting both asynchronous read and buffered programming modes. Its internal state machine executes embedded algorithms for program, erase, and sector protection - all initiated via command sequences written to specific address/data locations without external timing control.

The 64-ball Fortified BGA (LAA064) package enables high-density PCB layout while maintaining signal integrity for 16-bit data bus (DQ0–DQ15) and 24-bit address bus (A23–A0). RY/BY# provides real-time status feedback, and RESET# offers hardware-initiated recovery from erroneous states - critical for boot-critical firmware storage in automotive and industrial controllers.

Key Specifications

Pinout & Package

Package: 64-ball Fortified BGA (LAA064), 11 mm × 13 mm, 1.0 mm pitch, Pb-free (RoHS compliant), bottom-side thermal pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S29GL256S90TFI01 and MX29GL256FHI-90G, the S29GL256P90FFIR20 uniquely combines BGA miniaturization, VIO voltage independence, and Secured Silicon Sector - making it optimal for next-gen industrial and automotive platforms demanding security, scalability, and mixed-signal integration.

Availability

S29GL256P90FFIR20 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ECU boot code, and medical imaging system BIOS requiring stable component supply across extended product lifecycles.

Supply support for S29GL256P90FFIR20 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 global leader in high-performance, low-power embedded solutions, specializing in memory, microcontrollers, and connectivity ICs for industrial, automotive, and consumer markets.

The S29GL-P family was designed specifically for embedded systems requiring robust, high-density NOR Flash with advanced security, flexible I/O voltage, and production-friendly programming acceleration - targeting automotive infotainment, industrial automation, and networking infrastructure.

FAQ

What is the function of the VIO pin on the S29GL256P90FFIR20?

VIO sets the voltage reference for all input and output signal levels (address, control, and DQ pins), allowing operation with VIO = 1.65 V to VCC while VCC remains at 2.7–3.6 V. This eliminates external level shifters when interfacing with 1.8 V or 2.5 V microcontrollers, reducing BOM count and PCB complexity in mixed-voltage designs.

Does the S29GL256P90FFIR20 support hardware write protection of specific sectors?

Yes - the WP#/ACC pin provides hardware-level protection of the highest or lowest address sector depending on model configuration (R1/R2/V1/V2). When WP# is pulled low, those sectors are locked against program/erase commands regardless of software protection settings, offering failsafe protection for boot code or calibration data.

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

The Secured Silicon Sector is a dedicated 128-word (256-byte) region that can be permanently locked after programming an 8-word electronic serial number. Unlike regular sectors, it cannot be erased once locked - ensuring device identity remains tamper-proof and traceable throughout its operational life, meeting requirements for medical and defense applications.

Can the S29GL256P90FFIR20 be used in place of older S29GL256N devices?

No - the S29GL256P uses a different command set, enhanced protection features, and updated timing parameters compared to the legacy S29GL256N. While pin-compatible in BGA packages, firmware drivers must be updated to support new unlock sequences, CFI queries, and suspend/resume commands to ensure functional equivalence.