Infineon Technologies S29GL032N90FFI022

Overview

S29GL032N90FFI022 from Infineon Technologies (formerly Cypress) is a 32-Mbit, 16-bit-wide single-supply MirrorBit Flash memory IC with 90 ns access time, organized as 2,097,152 words (4,194,304 bytes), featuring uniform sector architecture (64 × 64 KB sectors), Secured Silicon Sector for factory-programmed 128-word electronic serial number, and JEDEC-compliant command set for embedded boot code storage in industrial controllers.

For engineers reviewing the S29GL032N90FFI022 datasheet, S29GL032N90FFI022 pinout, S29GL032N90FFI022 application, or S29GL032N90FFI022 equivalent, key selection criteria include 3.0 V single-supply operation, 100,000 erase cycles per sector, CFI compliance for host auto-configuration, hardware write protection via WP#/ACC, and support for program/erase suspend/resume in real-time firmware update systems.

Technical Context

This device implements a NOR Flash architecture with hot-electron injection programming and hot-hole assisted erase, enabling byte/word-level random read and sector-level erase. It supports both 16-bit and 8-bit data bus modes via BYTE# control, and uses VIO-referenced I/O (1.65–3.6 V) for flexible interfacing with mixed-voltage microcontrollers.

The command-set-driven operation includes Unlock Bypass mode (2-cycle programming), DQ7 Data# Polling and DQ6 toggle bit status monitoring, and hardware RY/BY# output for cycle completion detection. Sector protection is implemented via Persistent and Password-based mechanisms, with Secured Silicon Sector locked at factory or by user.

Key Specifications

Pinout & Package

Package: 48-pin TSOP (Type I, standard thin small outline package), body size 12 mm × 20 mm, lead pitch 0.5 mm - compatible with legacy PCB footprints and automated optical inspection (AOI) workflows.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S29GL032N90FFI022, the BGA variant offers higher density integration but eliminates manual repairability, while the Micron alternative trades pin compatibility for longer qualification cycles due to command-set divergence and absence of Secured Silicon Sector.

Availability

S29GL032N90FFI022 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive BCM calibration updates, and medical infusion pump bootloader deployment requiring stable component supply across long-lifecycle programs.

Supply support for S29GL032N90FFI022 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

Infineon Technologies is a global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive MCUs, and secure memory solutions with ISO 9001 and IATF 16949 certified manufacturing.

This device belongs to Infineon's MirrorBit Flash memory product line, engineered for high-reliability embedded code storage where data integrity, long-term retention, and hardware-assisted security are mandatory-not just performance or cost.

FAQ

Is S29GL032N90FFI022 compatible with legacy Cypress S29GL032N designs?

Yes-this part is a direct continuation of the Cypress S29GL032N product line under Infineon ownership. Pinout, command set, timing specifications, and packaging remain identical. Infineon maintains full documentation continuity and guarantees long-term supply without design changes.

Does the Secured Silicon Sector support customer programming in-system?

Yes-the Secured Silicon Sector can be programmed and permanently locked either at the factory or by the customer using the documented Enter/Exit Secured Silicon Sector command sequence. Once locked, no further writes or erases are possible, even with elevated VHH on WP#/ACC.

What is the role of VIO, and can it differ from VCC?

VIO sets input thresholds and output drive levels independently of VCC. It may be tied to 1.8 V logic rails while VCC remains at 3.0 V-enabling safe interfacing with low-voltage microcontrollers without level shifters. Operation is guaranteed across VIO = 1.65–3.6 V, regardless of VCC value within its 2.7–3.6 V range.

How does Program Suspend affect real-time system responsiveness?

Program Suspend allows the host CPU to read from or program any unprotected sector while a prior program operation is paused-enabling concurrent background firmware updates and foreground application execution. Resume occurs automatically upon command, with no data loss or state corruption.