Erasable Programmable Logic Device Application Note
ATV2500 and ATV2500B are the most powerful programmable logic devices available in a 40/44-pin package. They combine high density and global routing, making them easy to use and understand. Both devices have 24 macrocells, each with three sum terms, two registers, and 17 product terms. Each register
has individual clock and AR product terms. Each I/O pin has a programmable polarity control and an individual output
enable product term. Independent feedback paths from each register allow all of the registers to be buried without wasting
the I/O pins. A universal bus routes all input and feedback signals to all product terms on all macrocells. The ATV2500B
has the additional features of D- or T-type configurable registers, three different clock options, and buried combinatorial nodes. The ATV2500 and ATV2500B macrocell is shown in Figure 1.
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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09/99 |
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0458C–09/99/xM |
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175 KB |
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