Infineon Technologies S29GL064S90TFV043

Overview

S29GL064S90TFV043 from Infineon is a 64 Mb (8 MB) parallel NOR flash memory IC using 65-nm MIRRORBIT™ technology, operating from a single 3.0 V supply. It features 70 ns access time, internal hardware ECC for single-bit error correction, and a flexible sector architecture with 128 uniform 64-KB sectors. It supports boot code storage in industrial and automotive systems requiring high reliability and secure firmware retention.

For engineers reviewing the S29GL064S90TFV043 datasheet, S29GL064S90TFV043 pinout, S29GL064S90TFV043 application, or S29GL064S90TFV043 equivalent, key selection criteria include JEDEC-compliant command set, factory-programmed secure silicon region, 100,000 erase cycles per sector, and support for program/erase suspend/resume in embedded boot memory designs.

Technical Context

This device implements a parallel interface with 16-bit data bus (BYTE# configurable for 8-bit mode), separate CE#, WE#, and OE# controls, and hardware reset (RESET#) for system synchronization. Its MIRRORBIT™ charge-trapping architecture enables hot-hole assisted erase and hot-electron injection programming, delivering stable 20-year data retention and robust immunity to power transients via low-VCC write inhibition.

The logical architecture includes a 128-word secure silicon region with factory- or customer-lockable 16-byte electronic serial number, persistent and password-based sector protection, and CFI compliance for automatic host identification. Automatic ECC operates transparently during read cycles without software overhead.

Key Specifications

Pinout & Package

Package: 48-ball fine-pitch BGA (VBK048, 8.15 mm × 6.15 mm × 1.0 mm), RoHS-compliant, lead-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S29GL064S90TFV043, the TSOP variant trades package compactness for assembly flexibility, while the Macronix alternative omits secure silicon and advanced protection-making the Infineon part uniquely suited for safety- or identity-critical boot memory where tamper resistance and long-term firmware integrity are mandatory.

Availability

S29GL064S90TFV043 is available at Aetrix Electronics and suitable for automotive ECU development, industrial PLC firmware upgrades, and medical imaging system manufacturing requiring stable component supply and long-lifecycle support.

Supply support for S29GL064S90TFV043 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 German semiconductor manufacturer specializing in power management, automotive microcontrollers, and high-reliability memory solutions with global automotive and industrial certifications.

The GL-S MIRRORBIT™ flash product line targets mission-critical boot and firmware storage in automotive, industrial, and medical systems where data integrity, security, and extended temperature operation are non-negotiable design requirements.

FAQ

Does S29GL064S90TFV043 support 8-bit data bus operation?

Yes, it supports 8-bit mode via the BYTE# input pin. When BYTE# is asserted low, the device uses only DQ0–DQ7 for data transfer, disabling DQ8–DQ15. This mode is fully compatible with legacy 8-bit microcontroller buses and reduces signal count in space-constrained designs without sacrificing density or command set functionality.

What is the purpose of the WP#/ACC pin in normal operation?

In normal operation, asserting WP# low protects the first or last sector from accidental program/erase commands-even during accelerated programming. This hardware-level write protection remains active regardless of software sector lock settings, providing fail-safe defense against firmware corruption during system power-up or brown-out conditions.

How does the secure silicon region differ from standard sectors?

The secure silicon region is a dedicated 128-word (256-byte) area with factory-programmed 16-byte electronic serial number and independent lock mechanism. Once locked, its contents cannot be erased or rewritten-even with elevated voltage or unlock commands-ensuring immutable device identity and secure key storage for cryptographic boot validation.

Is RY/BY# compatible with standard microprocessor wait-state logic?

Yes, RY/BY# is an open-drain output that can directly drive standard microprocessor WAIT or READY inputs. When active low, it signals ongoing program or erase; when high-impedance, it releases the bus for normal operation. No external pull-up or level-shifting is required for common 3.3 V logic families, simplifying timing-critical boot interface design.