LC4256V-75TN100E

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Embedded - CPLDs (Complex Programmable Logic Devices)

LC4256V-75TN100E is a high-performance electrically-erasable programmable logic device (EEPLD). This device is specifically designed to improve the embedded system productivity and ease of use. It has the ability to process complex logic functions in one device with minimum package size. This device provides fast response, small footprint and low cost solution for current complex logic applications.

Because of its low power consumption, LC4256V-75TN100E is suitable for high-density applications such as security systems, automotive electronics, consumer electronics, industrial automation and control devices, and medical systems.

Application Field of LC4256V-75TN100E

LC4256V-75TN100E can be used for a variety of applications. It is suitable for design and development of embedded systems, which require processing of complex, real-time and high-performance functions. It is used in consumer devices like cooking appliances, where functions are too complex for a single processor.

External timing devices, like clocks, calendar, alarm etc., can be incorporated with the device and it is found ideal for such applications. Its Flash memory technology, programmable logic and high performance make it suitable for implementations like air conditioning controllers, washing machines, consumer entertainment and white goods.

It is also suitable for industrial and home automation and security systems, like motion sensors, voice recognition, and access control. Even with its small physical size, this powerful chip has the capability to process and execute complex logic functions, making it suitable for building automation, environmental monitoring, and automated processes.

Working Principle of LC4256V-75TN100E

LC4256V-75TN100E is based on Flash memory technology, which allows for logic to be programmed into the chip. The internally contained micropolarity memory consists of 16 cells that can be programmed with either Logical ‘0’ or Logical ‘1’. Each cell can store up to 8 bits of data.

The chip contains 256 input and 256 output pins, comprising 16 channels. Thus the chip can be used for up to 16 different functions. Each I/O pin can be programmed and configured according to the specific logic design using either a dedicated or shared logic logic gate.

The device uses a pipelined architecture, which provides high performance and low latency thus enabling small processing time. A pipelined architecture is where commands are divided into a series of small steps and each step is processed and then passed to the next step concurrently.

The programming of this chip is done via microJTAG interface. Generally, the development and design process involves two steps: Design Analysis and Program Writing. During Design analysis, logic equations and timing constraints, such as source and destination timing, are identified. Then the logic equations are programmed into the chip using Programming software, followed by validating the design.

LC4256V-75TN100E also incorporates an internal clock so that the chip can react to changes in the environment. With the incorporated watch-dog timer, if the output pins of the device become untriggered, the clock will send a reset signal to reset the device. This feature of the chip helps in improving the reliability in use.

LC4256V-75TN100E is a powerful, low power and highly versatile device, which is ideal for design and development of embedded systems. Its Flash memory technology, programmable logic and high performance make it suitable for implementations like air conditioning controllers, washing machines, consumer entertainment and white goods.

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