MX29GL128ELT2I-90G

MX29GL128ELT2I-90G is a Macronix 128-Mbit NOR Flash memory in the MX29GL128EL family. It provides a parallel NOR interface (typically x8 data bus) for firmware/storage in embedded systems and SoCs, enabling fast random reads and reliable code storage. The “-90G” suffix indicates a 90 ns access-time variant. It operates from a single supply (common 2.7–3.6 V range) and supports standard NOR flash features such as block/sector erase, page programming, and status/ready signaling. Used as boot code or firmware storage, it balances capacity, performance, and nonvolatile retention. Availability covers commercial and industrial temperature ranges with various packaging options. For exact timings, voltage tolerances, endurance, sector sizes, and packaging, refer to the official datasheet.

Possible equivalents (128-Mbit, 3.0V, 90ns, parallel NOR Flash):
- Winbond W29GL128G
- Spansion S29GL128P
- Fudan Microelectronics FM29GL128M
Note: cross-reference depends on exact package/pinout; verify against the datasheet and packaging when selecting replacements.

Here are the typical features of the MX29GL128ELT2I-90G (basically a 128 Mbit NOR flash):
- Density/type: 128-Mbit NOR flash memory
- Interface: parallel NOR, commonly x8 data bus (some variants may support x16)
- Speed: up to 90 MHz read clock (high-speed/fast-read options)
- Voltage and temp: operating voltage roughly 2.7–3.6 V; industrial temperature range (-40 to 85 °C)
- Memory organization: byte/word addressable with standard NOR flash command set
- Erase/program: supports sector/page erase and program operations
- Sector/Block structure: typical sectoring (sizes vary by device; see datasheet for exact blocks such as 4 KB, 64 KB, etc.)
- Endurance and retention: erase/write endurance on the order of ~100k cycles; data retention ≥ years (typical >20 years)
- Power: low power standby and/or deep power-down modes
- Protection: block protection and protection registers for security
- Packaging/compatibility: RoHS-compliant, available in standard packages (consult datasheet for exact package)
Note: exact block sizes, page size, timings, and packaging should be confirmed in the official datasheet for this exact suffix variant.

- Pin count: 48 pins (TSOP-48)
- Function: 128-Mbit parallel NOR Flash memory with 8-bit data bus for non-volatile storage (firmware/code) supporting read, program/erase (sector/block), and random access.

- Manufacturer: Macronix International Corporation (MX).
- What kind of company: A Taiwanese semiconductor company that designs and manufactures non-volatile memory products (NOR/NAND flash, ROM, MRAM) for embedded and consumer markets; publicly traded and globally active.

MX29GL128ELT2I-90G is a 128‑Mbit NOR flash memory used for nonvolatile code and data storage in embedded systems.
- Boot firmware and execute-in-place code for microcontrollers/SoCs
- Firmware images and data storage for consumer electronics (set‑top boxes, cameras, printers)
- Automotive ECUs, instrument clusters, body electronics (firmware storage and updates)
- Industrial controls and networking equipment (routers, switches, PLCs) for program storage
- Any system needing fast random‑access nonvolatile memory for code/data

An 8-pin TSOP (SOP-8) package.