Cypress Semiconductor Corp S29GL01GT11DHV020

Overview

S29GL01GT11DHV020 from Infineon is a 1 Gb (128 MB) parallel NOR flash memory using 45-nm MIRRORBIT™ technology, operating from 2.7 V to 3.6 V with 100 ns random access time and 15 ns page access time. It features a 512-byte write buffer, internal single-bit ECC, uniform 128-KB sector erase, and supports industrial temperature range (–40°C to +85°C). It is used in boot code storage for industrial controllers requiring fast XIP execution and reliable non-volatile data retention.

For engineers reviewing the S29GL01GT11DHV020 datasheet, S29GL01GT11DHV020 pinout, S29GL01GT11DHV020 application, or S29GL01GT11DHV020 equivalent, key selection criteria include parallel ×16 bus interface, CFI-compliant command set, OTP array with four lockable SSR regions, and AEC-Q100 grade 3 qualification for automotive control modules.

Technical Context

This device implements an asynchronous parallel interface with byte/word boundary addressing and supports both 8-bit and 16-bit data bus configurations. Its embedded algorithm controller (EAC) manages program, erase, suspend/resume, and automatic ECC correction without host intervention.

The flash array is organized into uniform 128-KB sectors with advanced sector protection (ASP), including volatile and non-volatile locking per sector. The separate 2048-byte OTP array contains four lockable regions (SSR0–SSR3), where SSR0 is factory-locked and SSR3 supports password-based read protection.

Key Specifications

Pinout & Package

Package: 56-pin TSOP (Type I, 14 mm × 20 mm, 0.55 mm pitch), compliant with JEDEC MO-142AC.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S29GL01GT11DHV020, the TFV variants offer identical electrical performance and feature set but differ in package form factor and temperature grading-making them drop-in replacements only when mechanical and thermal constraints align.

Availability

S29GL01GT11DHV020 is available at Aetrix Electronics and suitable for industrial PLCs, automotive ADAS ECUs, telecom base stations, and medical imaging systems requiring stable component supply across multi-year production cycles.

Supply support for S29GL01GT11DHV020 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 memory solutions, with global R&D and manufacturing infrastructure.

The GL-T family targets high-reliability embedded systems needing execute-in-place capability, robust data retention, and AEC-Q100 qualified flash for automotive and industrial control applications.

FAQ

What is the purpose of the SSR0–SSR3 regions in the OTP array?

SSR0–SSR3 are four independent lockable regions within the 2048-byte OTP array. SSR0 is permanently locked at factory shipment and typically holds device-specific identifiers. SSR3 supports password-based read protection for sensitive data like encryption keys. Locking is irreversible and provides hardware-enforced security against unauthorized access or modification.

Does S29GL01GT11DHV020 support both ×8 and ×16 data bus modes?

Yes. The device operates in ×16 mode by default, with DQ0–DQ15 as the full data bus. When BYTE# is asserted low, it switches to ×8 mode using only DQ0–DQ7. This dual-mode capability allows flexible integration with microcontrollers offering either 8-bit or 16-bit external memory interfaces without redesigning the PCB layout.

How does the 512-byte write buffer improve programming efficiency?

The write buffer allows up to 512 bytes (256 words) to be loaded into an internal register before initiating a single program operation. This reduces the number of command sequences required and minimizes bus arbitration overhead. Measured buffer programming rate is 1.14 MBps across all temperature grades, delivering consistent performance regardless of ambient conditions.

Is hardware reset (RESET#) required during power-up?

Yes. The RESET# pin must be held low for ≥100 ns after VCC reaches 2.7 V to ensure proper initialization of internal state machines and registers. Failure to meet this requirement may result in undefined behavior or failure to respond to commands. A dedicated RC reset circuit or supervisor IC is recommended for production designs.