Infineon Technologies S29GL032N90FFI032

Overview

S29GL032N90FFI032 from Infineon Technologies (formerly Cypress) is a 32-Mbit (4,194,304-byte), 16-bit-wide single-supply MirrorBit Flash memory IC 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 secure boot code retention and field-upgradable firmware are required.

For engineers reviewing the S29GL032N90FFI032 datasheet, S29GL032N90FFI032 pinout, S29GL032N90FFI032 application, or S29GL032N90FFI032 equivalent, key selection criteria include JEDEC-compliant command set, 100,000 erase cycles per sector, CFI compliance for host auto-identification, and hardware write protection via WP#/ACC pin - all critical for embedded system reliability and firmware security validation.

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 supports byte/word configuration via BYTE# input and uses hot-electron injection for programming and hot-hole assisted erase at the sector level.

The command interface is fully JEDEC JESD21-C compliant, supporting Autoselect, CFI query, Program Suspend/Resume, and Erase Suspend/Resume. Status reporting uses DQ7 Data# Polling, DQ6/DQ2 toggle bits, and dedicated RY/BY# output - enabling deterministic host polling without timing dependency on VCC transitions.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with S29GL032N90FFI032, the BGA variant trades package flexibility for board area savings but retains identical timing and protection features, while the Macronix alternative sacrifices security features for lower unit cost - making the Infineon part optimal where firmware integrity and traceability are mandatory.

Availability

S29GL032N90FFI032 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device boot code retention, and automotive body control module applications requiring stable component supply, long-term lifecycle support, and guaranteed 20-year data retention.

Supply support for S29GL032N90FFI032 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.

The S29GL-N family was developed by Cypress (acquired by Infineon in 2020) to deliver high-reliability, single-supply NOR Flash for mission-critical embedded firmware storage - emphasizing security, endurance, and JEDEC interoperability over raw density.

FAQ

What is the function of the WP#/ACC pin on S29GL032N90FFI032?

The WP#/ACC pin serves dual roles: when held low, it hardware-protects the first or last sector regardless of software protection settings; when driven high with elevated voltage (VHH ≈ 11.5 V), it enables accelerated programming for faster factory throughput. This pin is electrically isolated from VCC and VIO, allowing independent control during production programming without affecting system-level I/O voltage domains.

Does S29GL032N90FFI032 support 8-bit data bus operation?

Yes, the device supports 8-bit mode via the BYTE# input. When BYTE# is low, only DQ0–DQ7 are active as an 8-bit data bus, and DQ15 functions as A-1 for address extension. This mode maintains full command compatibility and preserves all protection and suspend features - commonly used in legacy 8-bit microcontroller interfaces where pin count reduction is critical.

How is the Secured Silicon Sector programmed and locked?

The Secured Silicon Sector is pre-programmed at the factory with a unique 8-word (16-byte) Electronic Serial Number and can be permanently locked using a dedicated command sequence (0x60 → 0xD0). Once locked, no further writes or erases are possible in that 256-byte region. Customer programming is supported via special test mode entry, but permanent lock requires irreversible fuse blowing - documented in Cypress Application Note AN98525 Section 8.15.

Can S29GL032N90FFI032 be used in a 1.8 V I/O system?

No - VIO must be ≥1.65 V but ≤3.6 V, and operation at 1.8 V is not characterized or guaranteed. The device's input thresholds scale with VIO, and at 1.8 V, setup/hold timing margins degrade beyond specification limits. For true 1.8 V systems, Infineon recommends the S29GL032S series, which is explicitly rated for 1.7–2.0 V VIO operation and shares identical command set and sector architecture.