Infineon Technologies S29GL032N90BFI032

Overview

S29GL032N90BFI032 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 16-byte electronic serial number. It operates from 2.7–3.6 V VCC and 1.65–3.6 V VIO, supporting boot code storage in industrial control firmware.

For engineers reviewing the S29GL032N90BFI032 datasheet, S29GL032N90BFI032 pinout, S29GL032N90BFI032 application, or S29GL032N90BFI032 equivalent, key selection criteria include JEDEC-compliant command set, hardware write protection via WP#/ACC, CFI compliance for host auto-configuration, and 100,000 erase cycles per sector with 20-year data retention.

Technical Context

This device implements a 110 nm MirrorBit floating-gate NAND-like cell architecture enabling single-power 3.0 V operation for both read and program/erase functions. It uses hot-electron injection for programming and hot-hole assisted erase at the sector level, with full command-set compatibility to JEDEC JESD21-C standards.

It features dual voltage domain I/O control via VIO (1.65–3.6 V), independent of VCC, and supports byte/word configuration via BYTE# input. Sector erase architecture enables selective reprogramming without disturbing adjacent 64 KB sectors, and includes Erase Suspend/Resume and Program Suspend/Resume for concurrent background operations.

Key Specifications

Pinout & Package

Package: 48-pin TSOP (Type I, standard thin small outline package, 12 × 20 mm body, 0.5 mm pitch).

Key Features

Applications

Equivalent & Alternatives

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

Compared with S29GL032N90TFI020, this part delivers tighter timing and smaller footprint; versus MX29GL320EHTI-90G, it adds secure identity, CFI, and suspend/resume-critical for certified embedded systems.

Availability

S29GL032N90BFI032 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive BCM boot code, and medical imaging UI applications requiring stable component supply and long-term lifecycle assurance.

Supply support for S29GL032N90BFI032 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.

The S29GL-N family was originally developed by Cypress and continues under Infineon's Flash Memory portfolio, targeting high-reliability embedded systems requiring secure, long-life nonvolatile storage with JEDEC interoperability.

FAQ

What is the function of the WP#/ACC pin on S29GL032N90BFI032?

The WP#/ACC pin serves dual roles: as WP# it permanently protects the first or last 64 KB sector from program/erase when pulled low; as ACC it accepts 4.5–5.5 V to accelerate programming throughput by ~40%. This dual functionality enables both field-level write protection and factory-line high-speed flashing without external circuitry.

Does S29GL032N90BFI032 support 8-bit data bus operation?

Yes, it supports 8-bit mode via the BYTE# input. When BYTE# is driven low, the device maps DQ0–DQ7 as the data bus and disables DQ8–DQ15. This allows seamless integration with legacy 8-bit microcontrollers like Intel 8051 derivatives without address/data demultiplexing or bus transceivers.

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

The Secured Silicon Sector is a dedicated 256-byte region (128 words) that can be permanently locked at factory or by customer. Once secured, no further writes or erases are possible-even with unlock commands. It contains an 8-word (16-byte) Electronic Serial Number pre-programmed by Cypress, providing immutable device identity for secure boot and anti-counterfeiting.

Can S29GL032N90BFI032 be used in automotive applications?

Yes, the 'BFI032' suffix denotes Industrial temperature range (−40°C to +85°C) and Pb-free RoHS-compliant packaging. While not AEC-Q100 qualified out-of-box, its 20-year data retention at 125°C and robust erase endurance make it widely deployed in automotive body electronics, infotainment head units, and telematics modules where extended qualification is managed at system level.