Infineon Technologies S29GL032N90TFI020

Overview

S29GL032N90TFI020 from Infineon Technologies (formerly Cypress) is a 32-Mbit, 3.0-V single-power-supply MirrorBit Flash memory organized as 2,097,152 words (4,194,304 bytes), featuring 90 ns access time, 64 KB uniform sectors (64 total), and Secured Silicon Sector with factory-programmable 128-word electronic serial number. It supports JEDEC-compatible command sets and operates in embedded boot code storage applications requiring nonvolatile program retention and field-upgradable firmware.

For engineers reviewing the S29GL032N90TFI020 datasheet, S29GL032N90TFI020 pinout, S29GL032N90TFI020 application, or S29GL032N90TFI020 equivalent, key selection criteria include uniform sector erase architecture, VIO-referenced VersatileI/O™ control (1.65–3.6 V), CFI compliance for host auto-configuration, and hardware write protection via WP#/ACC input.

Technical Context

This device implements a 16-bit wide data bus (with BYTE# configurable for 8-bit mode), uses hot-electron injection for programming and hot-hole assisted erase per sector, and integrates on-chip voltage generators for accelerated programming when ACC voltage is applied to WP#/ACC. It supports both chip- and sector-level erase operations with 100,000 erase cycles per sector and 20-year data retention.

Command execution relies on standard microprocessor write timing with internal latching of addresses and data; status monitoring is performed via DQ7 data polling, DQ6 toggle bit, or RY/BY# output. Erase/program suspend/resume functionality enables concurrent read/program operations across unprotected sectors during background erase or program cycles.

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 S29GL032N90TFI010, the TSOP variant offers easier prototyping and boundary scan testing; versus MX29GL320EBTI-90G, it delivers integrated hardware security and single-supply simplicity at marginally higher unit cost.

Availability

S29GL032N90TFI020 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive instrument cluster boot memory, and medical diagnostic imaging boot loader applications requiring stable component supply, long-lifecycle support, and guaranteed obsolescence management.

Supply support for S29GL032N90TFI020 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, sensor solutions, and secure microcontrollers for automotive, industrial, and IoT markets.

The S29GL-N family was originally developed by Cypress Semiconductor and continues under Infineon's Flash memory portfolio, targeting embedded systems requiring high-reliability, field-upgradable nonvolatile storage with hardware-based security features.

FAQ

Is S29GL032N90TFI020 compatible with legacy Cypress S29GL032N designs?

Yes - this part retains identical pinout, command set, timing parameters, and electrical characteristics as the original Cypress S29GL032N90TFI020. Infineon maintains full backward compatibility, including identical AC/DC specifications, CFI structure, and sector protection behavior. No PCB or firmware changes are required for drop-in replacement.

What is the function of the WP#/ACC pin during normal operation versus production programming?

During normal operation, asserting WP# low protects the first or last sector from accidental writes or erases regardless of software protection settings. During production, applying 5.5 V to ACC (via WP#/ACC pin) accelerates programming throughput by ~3× without altering device functionality or reliability - a feature intended for high-volume manufacturing only.

Does the Secured Silicon Sector support customer programming, or is it factory-only?

The Secured Silicon Sector can be programmed and locked either at the factory or by the customer using documented command sequences. Once locked, no further writes or erases are possible in that 256-byte region. The 16-byte electronic serial number is pre-programmed at factory; additional user data may be written before final lock.

How does the VersatileI/O™ feature simplify system-level voltage translation?

VersatileI/O™ uses the VIO pin to define all input thresholds and output drive levels independently of VCC. With VIO set to 1.8 V, the device interfaces directly with 1.8 V logic controllers without external level shifters, while VCC remains at 3.0 V to maintain core flash cell integrity - reducing BOM count and PCB complexity.