AT25DF041B-UUNHR-T

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The AT25DF041B-UUNHR-T is an 8 megabit (1 megabyte) Serial Flash Memory with advanced write protection mechanisms and security features that enable secure and reliable code storage and execution in embedded systems. The AT25DF041B-UUNHR-T is designed to be compliant with the Serial Peripheral Interface (SPI) and Two-Wire Serial Interface (2-WIRE). The memory is organized as 128-pages of 256 bytes, and addressing the whole 8Mbits of memory requires three address bytes. The communication interface is SPI-compatible with speeds up to 133MHz.

The AT25DF041B-UUNHR-T is a commonly used memory type in various applications such as industrial, consumer, and medical. It can be found in microcontrollers, mobile phones, cameras, tablets, and many other devices. This type of device is especially valuable in industrial applications due to its small size and great reliability.

Application Fields

The AT25DF041B-UUNHR-T is widely applicable for use in numerous fields. This memory chip is commonly found in industrial and consumer applications such as microcontrollers, mobile phones, cameras, tablets, and many other devices. The device also finds use in medical applications such as tracking patient data in healthcare systems.

Working Principle

The AT25DF041B-UUNHR-T is a Serial Flash Memory and operates under a serial bus protocol, typically SPI. It is designed to be compliant with the Serial Peripheral Interface (SPI) and Two-Wire Serial Interface (2-WIRE). The memory is organized in a 8 megabit (1 megabyte) capacity, divided into 128-pages of 256 bytes, allowing access to the entire 8-megabit memory with three address bytes. The device\'s special protection features include software and hardware data write protection, ESD protection, XMA write protection and FDC (Fast Data Capture).

The communication between the memory and a host is done through the SPI, which is a full-duplex serial interface. The interface provides an 8-bit data bus, and requires four additional control signals (CS, SCK, MOSI, and MISO). The SPI interface supports a maximum clock speed of 132 MHz and up to two bytes of data in one transaction. Commands and data can be sent to the memory using the SPI\'s MOSI line, and the read data is returned through the MISO line. The chip provides a command set to control the non-volatile memories. These commands allow the user to read and write memory blocks, as well as erase parts of memory or the entire memory itself.

The device employs multiple write protection mechanisms to prevent inadvertent or malicious erasure and corruption of code stored in the memory. This ensures that code stored in the memory is secure and reliable. The device employs Error Correction Code (ECC) for all write operations, ensuring that any write errors that occur are automatically corrected.

The AT25DF041B-UUNHR-T is a reliable and secure memory device that is used in a wide range of applications. The device\'s advanced write protection and security features make it an ideal choice for ensuring secure code storage and execution in embedded systems. With its small size, high data transfer speed, and advanced protection mechanisms, the AT25DF041B-UUNHR-T is an important and reliable memory chip in various applications.

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