SN74ACT8990FNR

Series:	74ACT
Packaging:	Tape & Reel (TR)
Part Status:	Active
Logic Type:	Test Bus Controller
Supply Voltage:	4.5 V ~ 5.5 V
Number of Bits:	16
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Surface Mount
Package / Case:	44-LCC (J-Lead)
Supplier Device Package:	44-PLCC (16.58x16.58)
Base Part Number:	74ACT8990

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The SN74ACT8990FNR is a specialty logic device used in a wide range of applications. It is a type of Field Programmable Logic Array (FPLA) and is capable of reprogramming at the application level within a short period of time. The logic behind the IC is designed to be independent of the logic used for the application it is embedded in, thus enabling different applications to be programmed and tested quickly.The SN74ACT8990FNR is an advanced high speed, programmable logic circuit used in situations where speed of results and precision accuracy are of the utmost importance. This FPLA operates at up to 200MHz and can store up to 64,000 logic operations, making it suitable for use in high-end applications. In addition, the FPLA offers a high degree of flexibility and performance, allowing the user to quickly adapt to the changing needs of an application. The device also provides support for different types of architectures such as SVGA, VGA, and XGA, allowing it to generate an output signal directly to the display. The SN74ACT8990FNR, like other FPLAs, has two main components, an input section and a logic section. The logic section is responsible for performing the logic operations. This section consists of two parts, the logic blocks and the reconfigurable logic blocks. The logic blocks consist of pre-defined logic operations and are used to implement a solid logic system. The reconfigurable logic blocks are used to implement any type of logic desired. This allows the user to quickly change the operation of the FPLA.The input section is responsible for providing input signals to the logic section. The inputs can be digital or analog signals, or a combination of both. The input signals are read and analyzed by the logic section and then used to generate the desired output. There are also several external control registers which control the logic operations and the output signals.The SN74ACT8990FNR can operate in different modes based on the type of operation desired. In single-cycle mode, the logic operations are executed as eac operation is required. In multi-cycle mode, operations are performed multiple times and the final result depends on the number of cycles performed. In Scan-Expanded mode, operations can be performed multiple times, but the logic blocks are then expanded to include the new logic operations.To ensure the highest levels of performance, the FPLA features a series of design guidelines. The first is that the logic operations should be designed for efficiency. The logic operations should be designed such that each operation takes as little time as possible, optimally within a single cycle. Additionally, the size of each operation should be minimized such that more complex operations can be included without sacrificing overall performance.The second design guideline is to ensure a high degree of modularity. Each module should be as independent as possible, allowing each function to be separately tested and updated. This allows for easy scaling, allowing the logic operations to be easily changed when necessary.The third guideline is that the logic operations should be arranged to achieve the desired output in minimal steps. The operations should be ordered in a certain way so that the logic section produces the desired output with the minimal number of steps. This will help to save on time and energy when the logic operations need to be changed.The SN74ACT8990FNR is an advanced specialty logic device that is used for a variety of applications. It is capable of performing operations quickly and accurately and is programmed and tested within a short period of time. The design guidelines ensure that the FPLA is as efficient as possible, allowing it to be used in high-end applications.

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