AT27C256R-12RC

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AT27C256R-12RC belongs to the family of EPROM (Erasable Programmable Read-Only Memory), which is a type of nonvolatile memory that is cost-effective. It is widely used in applications such as data storage and logic circuit emulation.

EPROMs are commonly used for data storage in consumer electronics, automotive sensors, process control systems, and other embedded systems. They are preferred over other types of memory because they are more durable, reliable, and enduring. Furthermore, they have a deterministic memory erase cycle time and can be used in many different applications.

The AT27C256R-12RC is a 256K-byte EPROM organized as 32K-words by eight-bits. It offers a wide-operating-temperature range of -40°C to +85°C and features a maximum access time of 120nsec. The device is fabricated using the one-transistor cell and is electrically erasable via an erase window.

The AT27C256R-12RC’s working principle is based on Fowler-Nordheim tunneling. This is a quantum-mechanical tunneling process which employs electrons as the tunnelingis used to form a layer of insulation film on the surface of the silicon chip. The electric field within the chip is then used to switch the electrons in and out of this insulation film. By applying a high voltage to the chip, the electric field can break through the film and the charge can be released.

Once the electrons have been released, they can be read back into the chip using the address bus and registered into the chip or output as necessary. This process can be repeated as many times as needed, as the device uses a single-transistor cell which is durable and reliable. The data in the memory can be retained for up to 10 years without any power.

In addition to data storage and logic circuit emulation, AT27C256R-12RC can also be used in a variety of other applications. It is often used in automotive engine control systems and in industrial control systems such as temperature controllers, pressure controllers, and process controllers. It can be used for code-storage in microcontrollers, programmable memory chips, and Embedded Servers and can also be used for embedded imaging and network security.

The AT27C256R-12RC is a very versatile memory chip with many different applications in the real world. Its deterministic memory erase cycle time and wide operating temperature range make it an ideal choice for a wide variety of applications. Furthermore, its low cost and reliable performance make it a great choice for embedded systems and industrial control systems.

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