Infineon Technologies S29GL032N90FFIS32

Overview

S29GL032N90FFIS32 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 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 S29GL032N90FFIS32 datasheet, S29GL032N90FFIS32 pinout, S29GL032N90FFIS32 application, or S29GL032N90FFIS32 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 simultaneous hot-hole erase across full sectors and hot-electron programming. It uses command-latched write cycles with internal address/data latching and supports both byte and word configuration via BYTE# input.

Its VersatileI/O™ control ties all input thresholds and output drive levels to VIO (1.65–3.6 V), decoupling I/O voltage from core VCC (2.7–3.6 V). Sector erase and program operations are managed through JEDEC-standard command sequences, with status reported via DQ7 polling, DQ6 toggle bits, or RY/BY# signal.

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 S29GL032N90FFIS32, the TSOP-56 variant trades pin count for broader VIO compatibility but sacrifices PCB space, while the Macronix alternative omits security features and demands firmware-level CFI handling - making the original optimal for secure, space-constrained industrial boot storage.

Availability

S29GL032N90FFIS32 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive body control modules, medical imaging boot loaders, and network router configuration storage requiring stable component supply across extended product lifecycles.

Supply support for S29GL032N90FFIS32 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, sensing, connectivity, and memory solutions for industrial, automotive, and IoT applications.

This device belongs to the S29GL-N MirrorBit Flash family, designed specifically for reliable, secure, and high-endurance code storage in mission-critical embedded systems where firmware integrity, long-term data retention, and in-field update capability are mandatory.

FAQ

What is the function of the WP#/ACC pin on S29GL032N90FFIS32?

The WP#/ACC pin serves dual roles: when held low, it permanently protects the first or last memory sector from accidental erase or program operations; when driven high with an elevated voltage (VHH ≈ 11.5 V), it enables accelerated programming for faster factory throughput. In standard operation, only the low-state protection function is used - no external high-voltage source is required for normal field use.

Does S29GL032N90FFIS32 support 8-bit data bus operation?

Yes, the device supports 8-bit mode via the BYTE# input. When BYTE# is asserted low, only DQ0–DQ7 are active for data transfer, and the device interprets addresses accordingly. This mode is fully compatible with 8-bit microcontrollers and reduces signal routing complexity on dense PCBs without sacrificing memory density.

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

The Secured Silicon Sector is a dedicated 256-byte region pre-programmed at the factory with a unique 16-byte electronic serial number and locked permanently using fuse-based or one-time-programmable logic. Unlike standard sectors, it cannot be erased or rewritten after initial programming - ensuring immutable device identity for secure boot, licensing, or anti-counterfeiting applications.

Can S29GL032N90FFIS32 be used in systems with 1.8 V I/O voltage?

Yes, the device supports VIO down to 1.65 V, making it compatible with 1.8 V logic families. All input thresholds and output drive strengths scale with VIO, so interfacing with 1.8 V microcontrollers requires only VIO = 1.8 V and appropriate level-shifting for VCC (2.7–3.6 V). The datasheet specifies AC timing parameters explicitly for this VIO range, including 110 ns access time.