Infineon Technologies S29GL064S90TFA070

Overview

S29GL064S90TFA070 from Infineon is a 64 Mb (8 MB) parallel NOR flash memory with 3.0 V single-supply operation, 70 ns access time, 128-word write buffer, and integrated hardware ECC for single-bit error correction. It features uniform 64-KB sectors, secure silicon region with factory-programmed 16-byte serial number, and supports industrial temperature range (–40°C to +85°C) in 48-lead TSOP package.

For engineers reviewing the S29GL064S90TFA070 datasheet, S29GL064S90TFA070 pinout, S29GL064S90TFA070 application, or S29GL064S90TFA070 equivalent, this device serves as boot code storage in automotive ECUs, firmware storage in industrial PLCs, and configuration memory in telecom baseband processors - where deterministic read latency, sector-level erase control, and persistent write protection are required.

Technical Context

The S29GL064S90TFA070 implements a parallel asynchronous interface with separate CE#, WE#, and OE# controls, supporting both 16-bit word and 8-bit byte modes via BYTE# input. Its MIRRORBIT™ 65-nm process enables hot-hole assisted sector erase and hot-electron programming with 100,000 erase cycles per sector and 20-year data retention.

Hardware features include RESET#-driven hard reset, RY/BY# status output, WP#/ACC-enabled accelerated programming and first/last sector write protection, and low-VCC detection that inhibits writes during power transitions. The device complies fully with JEDEC JESD21-C and Common Flash Interface (CFI) standards for host auto-identification and command set interoperability.

Key Specifications

Pinout & Package

Package: 48-lead TSOP (Type I, 12 mm × 20 mm × 1.2 mm, standard pitch 0.5 mm). Pin-compatible with industry-standard parallel NOR flash footprints.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S29GL064S90TFA070, the S29GL064S90TFI020 offers higher temperature tolerance without sacrificing security features, while the MX29GL640EHTI-90G trades integrated ECC and secure silicon for broader legacy driver support - making the original part optimal for new designs prioritizing data integrity and tamper resistance.

Availability

S29GL064S90TFA070 is available at Aetrix Electronics and suitable for automotive ECU firmware storage, industrial PLC program retention, and medical imaging controller configuration requiring stable component supply across extended product lifecycles.

Supply support for S29GL064S90TFA070 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 ICs, and secure memory solutions, with global manufacturing and quality certification to ISO/TS 16949 and AEC-Q100.

The GL-S MIRRORBIT™ flash product line targets mission-critical embedded systems requiring high reliability, long data retention, and hardware-enforced security - especially in automotive, industrial automation, and medical equipment.

FAQ

What is the function of the WP#/ACC pin on S29GL064S90TFA070?

The WP#/ACC pin serves dual functions: when held low, it permanently protects the first or last memory sector from program/erase operations, even during accelerated programming; when driven high with elevated voltage (VHH ≈ 11.5 V), it enables accelerated programming mode for faster production-line firmware flashing. This dual-role pin eliminates need for external protection circuitry while supporting high-throughput manufacturing.

Does S29GL064S90TFA070 support byte-wide data access?

Yes - the device supports 8-bit data access when the BYTE# pin is asserted low, restricting DQ0–DQ7 as the active data bus while disabling DQ8–DQ15. In this mode, A0 is ignored for addressing, and each access reads/writes one byte. This capability allows direct integration with 8-bit microcontrollers without glue logic, maintaining full command set compatibility including CFI and sector protection.

How does the Secure Silicon Region differ from standard sectors?

The Secure Silicon Region is a dedicated 128-word (256-byte) sector that can be permanently locked at factory or by customer using a command sequence. Once locked, no further writes or erases are possible - even with valid unlock commands or elevated VHH. It contains a unique 16-byte electronic serial number and is used for cryptographic key storage, device binding, or immutable firmware signatures, providing hardware-rooted trust absent in standard user-addressable sectors.

Can S29GL064S90TFA070 operate with VIO = 1.8 V while VCC = 3.3 V?

Yes - the device supports independent VIO (1.65–VCC) and VCC (2.7–3.6 V) supplies, allowing VIO = 1.8 V while VCC = 3.3 V. All input thresholds and output drive levels scale with VIO, enabling seamless interfacing with 1.8 V logic families (e.g., ARM Cortex-M4 I/O) while maintaining full 3.3 V core performance, including 70 ns access time and ECC functionality, without level shifters.