Titlebook: Electronic Counters; R. M. M. Oberman Textbook 1973Latest edition Macmillan Publishers Limited 1973 circuits and systems.counter.electrica

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https://doi.org/10.1007/978-3-7091-0190-2all with parallel load. Many of them are commercially available as a one-chip integrated circuit and they are all based on the same principle. However, some of them are implemented with . flip-flops, some with . flip-flops, and some with a mixture of . and . flip-flops.

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e circuit. The greatest variations in design possibilities will be obtained with asynchronous gateless counters, but because practically all cycle lengths can also be obtained in synchronous gateless counters, the discussion will be limited in this text to the design of synchronous gateless counters.

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A synchronous . counter (Binary Coded Decimal) can easily be derived from the 4-bit synchronous binary counter of figure 4.2. The resulting circuit is shown in figure 5.1. In practically the same form it is available integrated in one chip (SN74162)..

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The Interactionist Notion of IllnessCounters operating in the reflected binary code are not available as single-chip integrated circuits. Practical applications are very few compared with counters operating in the natural binary code, notwithstanding the very interesting features of the reflected binary code or a decimal subset of a 4-bit reflected binary code.

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