AT28C256-25FM/883

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AT28C256-25FM/883 is a type of reprogrammable CMOS nonvolatile memory, which belongs to the Memory category. It is used in a variety of applications, including automotive, consumer, and industrial. This article will discuss the application fields and working principle of AT28C256-25FM/883 memory.
AT28C256-25FM/883 is a 16 Kbelectrically erasable programmable read-only memory (EEPROM) that can be programmed and erased in-system or in-circuit. This EEPROM has a sector-type architecture which has 32 pages with each page containing 512 bits. The chip is organized as 8 K bytes of program memory and 8 K bytes of data memory, which makes it ideal for use in applications requiring both program and data memory.
One of the most common applications for the AT28C256-25FM/883 memory is for automotive applications. This type of memory is especially useful for automotive applications because of its ability to store data that is subject to harsh environments and temperature extremes. The memory can be used in automotive control systems to store engine control system parameters, vehicle performance information, and more.
The AT28C256-25FM/883 memory is also useful for consumer applications such as cellular phones, digital cameras, and other consumer electronics. These types of applications can rely on the memory to store important information such as user settings, preferences, and other data. Additionally, the memory can also be used to store software and update files that may be required for the device to operate properly.
The AT28C256-25FM/883 memory is also widely used for industrial applications. These applications include process control, test equipment, automation systems, and more. In industrial applications, the memory is often used to store system parameters, settings, and other data that require long-term storage and which may be subject to extreme temperatures or other harsh environmental conditions.
In order to understand how AT28C256-25FM/883 memory works, a brief description of the underlying technology is necessary. At the most basic level, the memory consists of transistors that are arranged into an array and programmed with a rotary switch. When the chip is powered, the switch is flipped and a charge builds up in the transistors. This charge is held in place until the switch is flipped again, at which point the charge is released and the memory is erased.
The AT28C256-25FM/883 memory also utilizes a technology called Fowler–Nordheim tunneling to erase the memory. This process works by applying a high voltage to the chip, which creates an electric field that passes across the memory surface and causes the charge to tunnel through the transistor arrays. This process causes the charge to temporarily dissipate, which clears the memory.
In conclusion, the AT28C256-25FM/883 memory is an ideal option for automotive, consumer, and industrial applications. It has the capability to store data in a wide range of conditions and its memory can be erased or programmed in-circuit or in-system. This makes the chip well suited for applications that require long-term storage, as well as those in harsh environmental conditions where data needs to be updated or changed frequently.

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