AT28C256-15SU

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AT28C256-15SU Memory – Application Field and Working PrincipleThe AT28C256-15SU is a type of non-volatile memory, which means it has the ability to store data even when it is not powered. It is used in a variety of applications, ranging from computers, gaming consoles, digital cameras and smart phones to more specialized applications like medical instrumentation and industrial control systems. In this article, we will discuss the application field and working principle of the AT28C256-15SU.The AT28C256-15SU is a 256K-byte CMOS (complementary metal oxide semiconductor) EEPROM (electrically erasable programmable read-only memory) which offers low voltage operation and a high endurance of 500000 cycles. This is used mainly in embedded systems, such as programmable logic controllers, embedded operating systems, and microcontrollers. It is also suitable for use in industrial control systems, wireless networks, data acquisition systems, point-of-sale systems, and other applications.The AT28C256-15SU has a parallel interface, which means that it can be connected to a microcontroller or microprocessor via an 8-bit or 16-bit data bus. It operates on a single +5V power supply, and is compatible with industry-standard microprocessors and controllers. The AT28C256-15SU also features a Dual-Out-Put write enable (DOWE) pin, which allows it to operate in either one or two write cycles, significantly reducing write time.The AT28C256-15SU’s working principle is fairly simple. It uses a series of latches to store data, which is then written into the chip’s internal memory cells with a power pulse. Before data can be written or read, the chip must be initialized by applying a “write enable” signal to its write enable (WE) pin. Once the chip is enabled, data can be read or written using the address, data input, and data output.For reading data, the address of the memory location is sent to the AT28C256-15SU and the desired data is retrieved from the memory cell directly. For writing data, the address of the memory cell is sent to the chip and the data to be written is sent along with the write command. The data is then stored in the memory cell, which can then be read at a later time.The AT28C256-15SU is available in several varieties – from 8K-bit to 256K-bit. It has a wide temperature range from -40°C to +85°C and an operating voltage range from 2.7V to 5.5V, making it ideal for industrial applications. It is also available in different packages, such as the SOIC, PLCC, TSOP, and PDIP.Overall, the AT28C256-15SU is a dependable and reliable type of non-volatile memory, with a wide range of applications. Its simplicity and ease of use, combined with its high endurance and low voltage operation, make it a great choice for a variety of embedded applications.

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