Using the ATV2500 and ATV2500B
● This application note describes how to use the features of the ATV2500 and ATV2500B in the ABEL (and Atmel-ABEL) and CUPL (and Atmel-CUPL) high level description languages. The 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 under-stand. 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 feed-back 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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ATV2500B 、 ATV2500 、 P2500 、 P2500C 、 P2500B 、 P2500BC 、 V2500 、 V2500LCC 、 V2500B 、 V2500BLCC |
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programmable logic devices 、 Erasable Programmable Logic Device |
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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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1999 |
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Rev. 0458C |
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0458C–09/99 |
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178 KB |
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