Infineon Technologies S29GL256S90DHI010

Overview

S29GL256S90DHI010 from Infineon is a 256 Mb (32 MB), 16-bit parallel NOR flash memory IC using 65 nm MIRRORBIT™ Eclipse technology, with 90 ns random access time, 15 ns page access time, and single 3.0 V supply (2.7–3.6 V) for read/program/erase - deployed in industrial embedded systems for firmware storage and XIP boot code execution.

For engineers reviewing the S29GL256S90DHI010 datasheet, S29GL256S90DHI010 pinout, S29GL256S90DHI010 application, or S29GL256S90DHI010 equivalent, key selection criteria include asynchronous 16-bit interface timing, 128 kB uniform sector erase granularity, internal hardware ECC for single-bit correction, Versatile I/O support (1.65–3.6 V), and AEC-Q100 Grade 3 qualification for automotive control modules.

Technical Context

This device implements an asynchronous parallel interface with word-aligned addressing (A0–A23), supporting both random and page-mode reads: initial access fetches a full 32-byte aligned page, subsequent intra-page reads complete in 15 ns. The embedded algorithm controller (EAC) manages all program/erase operations, including suspend/resume, status reporting via RY/BY# pin or status register, and automatic ECC generation/correction during read.

It features dual-voltage I/O (VIO = 1.65–VCC), enabling direct interfacing with 1.8 V or 3.3 V controllers without level shifters. Sector protection includes volatile (lock bits) and non-volatile (ASP) methods, plus a dedicated 1024-byte OTP array with two lockable regions for secure boot configuration or calibration data.

Key Specifications

Pinout & Package

Package: 56-pin TSOP (Thin Small Outline Package), standard JEDEC MO-141AC footprint, 20.0 mm × 10.16 mm × 1.2 mm height, lead-free and RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S29GL256P90TFI010, the TSOP package offers easier prototyping and repair; versus MX29GL256FHT2I-90G, the Infineon part delivers built-in ECC and OTP - eliminating design complexity for safety-certified systems.

Availability

S29GL256S90DHI010 is available at Aetrix Electronics and suitable for automotive ECU development, industrial PLC firmware upgrades, and medical imaging boot ROM deployments requiring stable component supply across multi-year production cycles.

Supply support for S29GL256S90DHI010 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 MCUs, and high-reliability memory solutions, with global manufacturing and quality certification to ISO/TS 16949 and AEC-Q200.

The GL-S family targets mission-critical embedded applications demanding deterministic timing, long-term data retention, and automotive-grade reliability - specifically engineered for XIP boot, firmware storage, and secure configuration in harsh environments.

FAQ

What is the maximum operating frequency supported by the S29GL256S90DHI010's parallel interface?

The device uses an asynchronous interface with no clock signal - timing is governed by access parameters like tACC (90 ns) and tPACC (15 ns). It interfaces directly with microcontrollers or FPGAs running at ≤10 MHz bus clocks without wait states, and supports burst reads via page mode for higher effective throughput.

Does the S29GL256S90DHI010 support both 1.8 V and 3.3 V I/O interfaces?

Yes - its Versatile I/O feature allows VIO to operate from 1.65 V to 3.6 V, enabling native interfacing with 1.8 V logic families (e.g., low-power FPGAs) and 3.3 V microcontrollers without external level shifters, provided VCC remains within 2.7–3.6 V.

How is sector protection implemented, and can it be changed in-system?

Sector protection uses both volatile (lock bits cleared on power cycle) and non-volatile (ASP bits retained after power loss) methods. Protection status is controlled via CFI commands and can be modified dynamically in-system using standard command sequences - no hardware jumper or fuse required.

Is the 1024-byte OTP array truly one-time programmable, and how is it secured?

Yes - the OTP array consists of 64 rows × 16 bytes, with two independently lockable regions (Region 0 and Region 1). Once a region is locked via dedicated command, its contents become permanently read-only; locking is irreversible and enforced by on-die logic, not software flags.