# Macronix MX25L6405D

> SPI Flash chip

**Wikidata**: [Q123688369](https://www.wikidata.org/wiki/Q123688369)  
**Source**: https://4ort.xyz/entity/macronix-mx25l6405d

## Summary
The Macronix MX25L6405D is an SPI Flash chip manufactured by Macronix International, providing 8 MB of non-volatile memory for data storage in digital devices. It is designed for compatibility with systems using the Serial Peripheral Interface (SPI) and supports integration with tools like flashrom and the Linux kernel.

## Key Facts
- **Instance of**: Computer memory (8 MB capacity, Q79758 unit).
- **Manufacturer**: Macronix International.
- **Compatible with**: 
  - flashrom (version 1.2) [reference: https://review.coreboot.org/plugins/gitiles/flashrom/+/refs/heads/1.2.x/flashchips.c#8542].
  - Linux kernel (version 6.6) [reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/mtd/spi-nor/macronix.c?h=v6.6#n50].
- **Implementation of**: Serial Peripheral Interface (SPI).
- **Wikidata description**: SPI Flash chip.

## FAQs
### Q: What is the storage capacity of the Macronix MX25L6405D?
A: The Macronix MX25L6405D has an 8 MB storage capacity, designed for non-volatile data retention in electronic devices.

### Q: Is the Macronix MX25L6405D compatible with open-source tools?
A: Yes, it is compatible with flashrom (version 1.2) and the Linux kernel (version 6.6), ensuring usability in open-source hardware and software projects.

### Q: Who manufactures the MX25L6405D chip?
A: The chip is produced by Macronix International, a semiconductor company specializing in memory solutions.

## Why It Matters
The Macronix MX25L6405D plays a critical role in embedded systems and electronic devices requiring reliable, low-power non-volatile memory. As an SPI Flash chip, it enables efficient data storage and firmware updates in applications such as routers, IoT devices, and industrial controllers. Its compatibility with widely used tools like flashrom and the Linux kernel ensures broad adoptability in both proprietary and open-source environments. This chip addresses the need for compact, durable memory solutions in modern electronics, contributing to the functionality and reliability of digital systems.

## Notable For
- **Specific part number**: MX25L6405D, indicating its unique design and specifications within Macronix's product lineup.
- **Verified compatibility**: Explicit support in flashrom 1.2 and Linux kernel 6.6, reflecting its integration into mainstream software ecosystems.
- **SPI implementation**: Adherence to the Serial Peripheral Interface standard, ensuring interoperability with a wide range of microcontrollers and systems.
- **Manufacturer expertise**: Produced by Macronix International, a recognized provider of memory semiconductor solutions.

## Body
### Specifications
- **Storage capacity**: 8 MB (megabytes), meeting the data storage needs of embedded systems.
- **Interface**: Serial Peripheral Interface (SPI), enabling efficient communication with host devices.
- **Memory type**: Non-volatile Flash memory, retaining data without power.

### Compatibility
- **flashrom**: Supported in version 1.2, as documented in the flashchips.c driver [reference link].
- **Linux kernel**: Included in version 6.6 through the macronix.c driver in the SPI-NOR subsystem [reference link].

### Manufacturer
- **Macronix International**: A Taiwan-based semiconductor company established in 1989, focusing on NOR Flash, NAND Flash, and ROM products. The MX25L6405D exemplifies their specialization in memory solutions for electronics.

### Technical Context
- **Applications**: Commonly used in devices requiring firmware storage, boot code, or configuration data, such as networking equipment, automotive systems, and consumer electronics.
- **Standards compliance**: Aligns with SPI protocols, ensuring seamless integration into designs using this industry-standard interface.

## References

1. [Source](https://review.coreboot.org/plugins/gitiles/flashrom/+/refs/heads/1.2.x/flashchips.c#8542)
2. [Source](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/mtd/spi-nor/macronix.c?h=v6.6#n50)