Infineon Technologies S29GL064N90FFI040

Overview

S29GL064N90FFI040 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 × 16 bits, 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 networking routers and industrial controllers.

For engineers reviewing the S29GL064N90FFI040 datasheet, S29GL064N90FFI040 pinout, S29GL064N90FFI040 application, or S29GL064N90FFI040 equivalent, key selection criteria include JEDEC software compatibility, Secured Silicon Sector with factory-programmed 128-word ESN, CFI compliance, and dual-mode 16-bit/8-bit data bus via BYTE# control.

Technical Context

This device implements a command-set-compatible, single-supply NOR Flash architecture with hardware-accelerated programming via WP#/ACC input and dedicated RY/BY# status output. Its 110 nm MirrorBit process enables hot-hole assisted erase and hot-electron injection programming across uniform 64 KB sectors.

It integrates Advanced Sector Protection (Persistent and Password modes), Program/Erase Suspend & Resume, and CFI-compliant identification-enabling host systems to dynamically configure timing, voltage, and protection parameters without firmware changes.

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 NOR Flash memory applications.

Compared with S29GL064S90TFI020 and MX29GL640EHTI-90G, the S29GL064N90FFI040 uniquely delivers factory-programmed ESN, Password Sector Protection, and full CFI compliance-making it the only option for secure, field-upgradable embedded systems requiring identity binding and dynamic driver negotiation.

Availability

S29GL064N90FFI040 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, networking router boot memory, and medical diagnostic equipment requiring stable component supply and long-term lifecycle support.

Supply support for S29GL064N90FFI040 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 Semiconductor and continues under Infineon's Flash Memory portfolio, targeting high-reliability embedded boot and firmware storage applications with emphasis on security, endurance, and JEDEC interoperability.

FAQ

What is the function of the WP#/ACC pin on S29GL064N90FFI040?

The WP#/ACC pin serves dual roles: as WP# (Write Protect), it locks the first or last sector against accidental erase/program when pulled low; as ACC (Accelerated Program), it accepts 5.0 V to reduce programming time during high-volume manufacturing. The function depends on voltage level and command context-not external configuration. This dual-mode design eliminates need for separate pins while preserving factory and field flexibility.

Does S29GL064N90FFI040 support both x8 and x16 data bus widths?

Yes. When BYTE# is high, the device operates in 16-bit mode with DQ0–DQ15 active. When BYTE# is low, it switches to 8-bit mode using only DQ0–DQ7, with DQ8–DQ15 disabled. This is hardware-controlled and requires no command sequence. The internal address mapping adjusts automatically, allowing seamless integration with 8-bit microcontrollers or 16-bit SoCs without external glue logic.

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

The Secured Silicon Sector is a dedicated 128-word (256-byte) region pre-programmed at factory with a unique 8-word electronic serial number. Once locked via command sequence, it becomes permanently read-only-even during chip erase. Unlike standard sectors, it cannot be reprogrammed or erased, providing immutable device identity for licensing, anti-counterfeiting, and secure boot chain anchoring.

Can S29GL064N90FFI040 be used in systems requiring CFI-compliant flash drivers?

Yes. The device fully implements the Common Flash Interface specification (JEDEC JESD68). Executing the CFI query command returns standardized tables containing geometry, command set, timing, and voltage parameters. This enables generic flash drivers-such as those in U-Boot or Linux MTD-to auto-detect and configure the device without hard-coded vendor-specific logic.