GAL20V8B-15QJN

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The GAL20V8B-15QJN is a Complex Programmable Logic Device (CPLD). It is a programmable logic integrated circuit with combinatorial and sequential logic, suitable for a wide variety of digital designs including finite state machine control, memory decoding and control circuits, arithmetic processors, and bus interface control. The device contains pre-configured logic blocks that allow designers to implement digital logic functions without complex external logic.

The GAL20V8B-15QJN device is organized as a two-dimensional array of Logic Array Blocks (LABs). It is programmed using a series of fuse patterns that represent logical levels of the device. Each fuse pattern is unique and represents the desired logic function. A Logic Array Block contains an array of combinatorial logic coupled with sequential logic. This block is capable of holding a variety of different logic functions, depending on the fuse programming.

The GAL20V8B-15QJN device is suitable for applications such as memory and microprocessor systems, system controllers, interface logic, data buffering and bus arbitration, arithmetic processors, conversion and conditioning control, and communications control. The device is implemented in a small 24-pin PQCC package, making it ideal for applications requiring a compact solution.

The GAL20V8B-15QJN device operates by allowing the user to configure the logic array blocks to implement the desired logic functions. The logic array blocks contain combinatorial and sequential components, allowing the user to implement a variety of logic functions. The combinatorial components provide basic Boolean operations, such as AND, OR, and XOR, while the sequential components provide the ability to store data or act as a clock divider. The user can program the logic array blocks in order to implement any desired logic function.

The device is programmed using a combination of fuse patterns and logic gates. Each logic array block can contain up to 32 fuses and 16 logic gates. The fuse patterns represent the logical levels of the device, while the logic gates allow the user to implement more complex logic. Once the desired logic is programmed, it can be implemented on the device by sending the appropriate control signals.

The GAL20V8B-15QJN device is capable of providing up to 1 million equivalent gates with a power dissipation of less than 100 mW. It has a propagation delay of less than 12 ns, allowing for faster response times. The device also has a very high logic density, allowing for more complex logic designs to be implemented in smaller packages.

The GAL20V8B-15QJN device is suitable for applications requiring high speed, low power and small form factor solutions. The device allows users to implement a wide variety of digital designs, ranging from simple combinatorial logic to complex microprocessor systems. It is an ideal solution for embedded applications where space and power efficiency are critical.

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