Infineon Technologies S29GL064N90BFI032

Overview

S29GL064N90BFI032 from Infineon Technologies (formerly Cypress) is a 64 Mbit, 3.0 V single-power-supply MirrorBit Flash memory IC organized as 4,194,304 words (8,388,608 bytes), featuring 90 ns access time, 100,000 erase cycles per sector, and 20-year data retention. It supports uniform sector architecture with 128 × 64 KB sectors and operates in industrial temperature range (–40°C to +85°C) for embedded boot code storage in microcontroller-based systems.

For engineers reviewing the S29GL064N90BFI032 datasheet, S29GL064N90BFI032 pinout, S29GL064N90BFI032 application, or S29GL064N90BFI032 equivalent, key selection criteria include JEDEC-compliant command set, Secured Silicon Sector with factory-programmed 128-word ESN, flexible 16-bit/8-bit bus configuration via BYTE#, and hardware-accelerated programming via WP#/ACC input.

Technical Context

This device implements a NOR Flash architecture with hot-electron injection programming and hot-hole assisted erase, enabling byte/word-level random read and sector-level erase. Its VersatileI/O™ control uses VIO (1.65–3.6 V) to independently set input/output voltage levels, decoupling I/O signaling from core VCC (2.7–3.6 V).

The command-set architecture supports CFI compliance for automatic device identification, along with Program Suspend/Resume and Erase Suspend/Resume-allowing concurrent read operations during active program/erase cycles. Sector protection includes Persistent and Password modes, with hardware write protection via WP#/ACC and RESET# for system-level recovery.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar NOR Flash memory applications.

Compared with S29GL064S90TFI020 and MX29GL640EHTI-90G, the S29GL064N90BFI032 uniquely delivers factory-secured identity, CFI interoperability, and VIO flexibility-making it the only option among the three qualified for secure, standards-based embedded boot applications.

Availability

S29GL064N90BFI032 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive body control modules, and medical diagnostic equipment boot loader applications requiring stable component supply across extended product lifecycles.

Supply support for S29GL064N90BFI032 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, and connectivity solutions for automotive, industrial, and IoT markets.

This device belongs to the S29GL-N family of MirrorBit NOR Flash memories, designed specifically for reliable, secure, and high-performance code storage in resource-constrained embedded systems requiring deterministic boot behavior and long-term data integrity.

FAQ

What is the function of the BYTE# pin on S29GL064N90BFI032?

The BYTE# pin configures the data bus width: when HIGH, the device operates in 16-bit mode (DQ0–DQ15 active); when LOW, it operates in 8-bit mode (DQ0–DQ7 only), with DQ8–DQ15 disabled. This enables direct interface to both 8-bit and 16-bit microcontrollers without external multiplexing logic.

Does S29GL064N90BFI032 support hardware reset during active programming?

Yes. Asserting RESET# LOW asynchronously terminates any ongoing program or erase operation, clears internal state machines, and returns the device to the read array state. This is critical for system recovery after power faults or watchdog timeouts during firmware updates.

How is the Secured Silicon Sector protected from modification?

The Secured Silicon Sector is permanently locked either at the factory or by the customer using a dedicated command sequence. Once locked, no further writes or erases are possible-even under accelerated programming conditions or with WP# deasserted-ensuring immutable storage of serial numbers or cryptographic keys.

Can S29GL064N90BFI032 be used with a 1.8 V I/O interface?

Yes. With VIO supplied at 1.8 V and VCC at 3.0 V, all input thresholds and output drive levels conform to 1.8 V logic standards. This allows direct connection to 1.8 V FPGAs or application processors without level-shifting circuitry, while maintaining full 3.0 V core functionality.