AT28BV256-20SA

AT28BV256-20SA is a type of memory device made by Atmel Corporation of the United States. This memory device comes with an 8 Kilobyte EEPROM (Electrically Erasable Programmable Read-Only Memory) functionality, a 20-bit parallel addressable data bus, and an operating frequency of up to 125 MHz. This device is suitable for use in a variety of applications, ranging from microprocessors to bus-based equipment.In terms of application fields, the AT28BV256-20SA can be found in several industries. For example, it can be used in embedded systems, automated test equipment, and industrial automation applications. Additionally, the device can also be used in smart cards and contactless cards, as well as in automotive systems and process control systems.The working principle of the AT28BV256-20SA is quite simple and straightforward. The device is composed of two main components: a control circuit and an external memory. The control circuit is responsible for controlling the operations of the memory device. It reads the data from the external memory, performs operations on it, and then writes the data back to the external memory. The control circuit is able to communicate with the external memory through the use of a various IO interface.In terms of data access, the AT28BV256-20SA operates according to the parallel read and write mode. The data is accessed using a 20-bit wide address bus, making the device suitable for use with both 8-bit and 16-bit devices. Additionally, the device also supports both multiplexed and non-multiplexed operation modes, providing the flexibility and scalability required by a wide range of applications.The AT28BV256-20SA offers a variety of features, such as error correction codes (ECC) and embedded test circuitry. Furthermore, the device has programmable software features and an integrated security controller for enhanced security. The device also supports various command sets, allowing for a great deal of flexibility in its operation.In conclusion, the AT28BV256-20SA is a versatile memory device designed for use in a variety of applications. With its 20-bit wide address bus, multiplexed and non-multiplexed operation modes, integrated security controller, and error correction codes, the device is suitable for use in any application requiring secure, reliable memory storage.