Infineon Technologies S29GL032N90FFA023

Overview

S29GL032N90FFA023 from Infineon Technologies (formerly Cypress) is a 32 Mbit (4,194,304-byte), 16-bit-wide single-supply MirrorBit Flash memory with 90 ns access time, uniform sector architecture (64 × 64 KB sectors), and Secured Silicon Sector for factory-programmed electronic serial number. It operates from 2.7–3.6 V VCC and 1.65–3.6 V VIO, and is used in industrial control firmware storage where deterministic boot code integrity and long-term data retention are required.

For engineers reviewing the S29GL032N90FFA023 datasheet, S29GL032N90FFA023 pinout, S29GL032N90FFA023 application, or S29GL032N90FFA023 equivalent, key selection criteria include JEDEC-compliant command set compatibility, hardware write protection via WP#/ACC, CFI support for host auto-identification, and 100,000 erase cycles per sector with 20-year data retention.

Technical Context

This device implements a single-power-supply NOR Flash architecture using 110 nm MirrorBit process technology. It supports both word (16-bit) and byte (8-bit) operation via BYTE# input, and features VersatileI/O™ control where all signal thresholds scale with VIO voltage (1.65–3.6 V).

It integrates hardware reset (RESET#), ready/busy status (RY/BY#), and dual-mode write protection - persistent sector lock and password-based sector protection - enabling secure firmware updates in embedded systems without external logic.

Key Specifications

Pinout & Package

Package: 48-ball fine-pitch BGA (VBK048, 8.15 × 6.15 mm, 0.8 mm pitch). Ball grid layout matches JEDEC MO-245 standard.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S29GL032N90FFA023, the TSOP variant trades package flexibility for simpler assembly, while the Macronix part sacrifices security and interoperability features to reduce unit cost - making the Infineon part optimal for regulated, upgradable, and long-lifecycle systems.

Availability

S29GL032N90FFA023 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device boot code retention, and automotive telematics module applications requiring stable component supply across extended product lifecycles.

Supply support for S29GL032N90FFA023 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 acquired Cypress Semiconductor in 2020 and now owns the MirrorBit Flash portfolio. Cypress pioneered high-reliability NOR Flash for mission-critical embedded systems before the acquisition.

This device belongs to the S29GL-N family of single-supply, high-endurance NOR Flash memories designed specifically for industrial, medical, and automotive firmware storage where data integrity, long-term retention, and secure boot are mandatory.

FAQ

Is S29GL032N90FFA023 compatible with legacy Cypress S29GL032N designs?

Yes - this part retains identical electrical specifications, command set, pinout, and timing parameters as the original Cypress S29GL032N. Infineon maintains full backward compatibility, including identical AC/DC characteristics and CFI query responses. No hardware or firmware changes are needed for drop-in replacement in existing designs.

What is the function of the WP#/ACC pin in normal vs. accelerated programming mode?

In normal operation, WP#/ACC acts as write protect for the first or last sector when pulled low. During accelerated programming, applying 5.5 V (VHH) to this pin enables higher internal programming voltage, reducing single-word programming time by ~40%. This mode is intended for factory programming and requires external HV generation circuitry.

Does the Secured Silicon Sector require special commands to access?

Yes - access requires the dedicated Enter/Exit Secured Silicon Sector command sequence (six-byte unlock pattern followed by sector address). Once entered, reads/writes follow standard timing, but the sector remains inaccessible unless re-entered. Factory-locking permanently disables further writes, even after power cycles.

Can S29GL032N90FFA023 operate with VIO = 1.8 V while VCC = 3.3 V?

Yes - the VersatileI/O™ architecture explicitly supports independent VIO (1.65–3.6 V) and VCC (2.7–3.6 V) rails. At VIO = 1.8 V, all input thresholds and output drive levels scale accordingly, enabling direct interface with 1.8 V FPGAs or microcontrollers without level shifters, while maintaining full 3.3 V core functionality.