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MT25QL256ABA1EW7-0SIT

MT25QL256ABA1EW7-0SIT

Micron Technology Inc.
FLASH - NOR Memory IC 256Mbit SPI - Quad I/O 133 MHz 8-WPDFN (6x5)(MLP8)
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Overview

The MT25QL256ABA1EW7-0SIT is a high-performance 256Mbit (32MB) NOR Flash memory IC featuring a Quad SPI interface for high-bandwidth data transfers. It supports both Single Transfer Rate (STR) and Double Transfer Rate (DTR) protocols, achieving clock frequencies up to 133 MHz for efficient Execute-in-Place (XIP) functionality. Operating within a 2.7V to 3.6V range, it is housed in a space-saving 8-WPDFN package suitable for compact embedded designs.

Why Choose This Part

This device offers exceptional throughput with Quad I/O support, reaching data transfer rates up to 90 MB/s. It features flexible erase granularities including sector and subsector options, alongside a dedicated 64-byte OTP area for security keys or unique identifiers. The inclusion of a hardware reset pin and support for both 3-byte and 4-byte addressing modes ensures compatibility with both legacy and high-density memory controllers.

Applications

Execute-in-Place (XIP) Bootloader
Storing boot code and firmware for microcontrollers that lack sufficient internal flash, allowing code execution directly from external memory.
High-Resolution Display Buffering
Providing fast access to UI assets and bitmap graphics for embedded displays using the 90 MB/s Quad I/O throughput.
Industrial Data Logging
Reliable non-volatile storage for sensor logs and system events in industrial equipment requiring extended temperature operation.
FPGA Configuration
Acting as a configuration bitstream storage device for FPGAs that load their design at power-up via SPI or Quad SPI.

Key Specifications

Technology FLASH - NOR
Memory Size 256Mbit
Memory Type Non-Volatile
Memory Format FLASH
Mounting Type Surface Mount
Package / Case 8-WDFN Exposed Pad
Clock Frequency 133 MHz
Memory Interface SPI - Quad I/O
Voltage - Supply 2.7V ~ 3.6V
Memory Organization 32M x 8
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 8-WPDFN (6x5)(MLP8)
Write Cycle Time - Word, Page 8ms, 2.8ms

Getting Started

To interface with this part, configure your microcontroller SPI peripheral for Mode 0 or Mode 3 and ensure the 4-byte address mode is enabled to access the full 256Mbit density. Review the Micron MT25Q family datasheet for specific command codes for Quad I/O DTR operations. Prototyping typically involves using an 8-contact W-PDFN breakout or using dev boards from MCU vendors like ST or NXP that often include MT25Q series memory for external storage testing.

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