AT28C256-15JU-T Integrated Circuits (ICs)

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Memory devices are indispensable components in modern electronics that perform the storage of data. A prominent type of memory device is the AT28C256-15JU-T. This article will focus on the application field and working principle of the AT28C256-15JU-T.

The AT28C256-15JU-T belongs to a class of memory devices known as Electrically Erasable Programmable Read-Only Memories (EEPROMs). An EEPROM is essentially an ROM with the additional capability of having its content electronically erased and reprogrammed. The AT28C256-15JU-T is an 8K x 8 (8192 x 8 bytes) parallel-access CMOS EEPROM fabricated with Atmel’s advanced CMOS technology. It is organized as 32 pages of 256 bytes and is accessed through a 512-byte page mode.

The AT28C256-15JU-T has applications in mobile and consumer electronics, industrial equipment, and a variety of other electronic devices. It is used for non-volatile data storage in embedded systems, and is also often used for storing firmware code and configuration settings. Additionally, it can also be used for storing data in portable devices, such as digital electronic scales and barcode scanners.

The AT28C256-15JU-T operates by using a pair of transistors which act as a memory cell. This memory cell is responsible for storing the binary data as 0s and 1s. Each memory cell consists of two transistors, one acting as a select transistor and the other as a storage transistor. The storage transistor has its gate voltage supplied by the memory bus while the select transistor is driven by a row or column address. This allows the memory cell to be read or written to by the controlling logic.

The AT28C256-15JU-T also has built-in Dual Byte Write and End Of Write Detection. Dual Byte Write allows the AT28C256-15JU-T to write two bytes of data simultaneously, thus speeding up programming time. End Of Write Detection monitors the programming time of the device and will stop the programming cycle once the data is written, thereby eliminating the need for extra programming cycles.

The AT28C256-15JU-T is manufactured using the latest in CMOS technology for improved performance, lower power consumption, higher speeds, and improved reliability. It is available in an 8-pin dual in-line package, as well as a range of other package options. The AT28C256-15JU-T has a wide operating temperature range of -55°C to +125°C, making it suitable for a broad range of environments.

In summary, the AT28C256-15JU-T is an 8K x 8 (8192 x 8 bytes) CMOS EEPROM with a range of useful features. It has applications in mobile, consumer and industrial electronics, and can be used for non-volatile data storage in embedded systems. The AT28C256-15JU-T operates by using a pair of transistors which act as a memory cell, and has integrated Dual Byte Write and End Of Write Detection for improved performance and reliability.

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