Abstract
The circuits described so far are combinational logic circuits which process some inputs and generate a suitable output (or outputs) whose value depends only upon those inputs. Another form of logic circuit is termed sequential logic, and here some of the outputs are fed back as inputs to the circuit, so the outputs now depend upon both the current and the previous inputs. One use of such circuits is to provide memory elements, sometimes called latches or flip flops. These are described here as they are used extensively in microprocessor systems.
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References
B.R. Bannister & D.G. Whitehead Fundamentals of Modern Digital Systems 2nd Edn, Macmillan Press 1987.
D. Lewin & D. Protheroe Design of Logic Systems Chapman & Hall, 1992.
R.J. Mitchell Microcomputer Systems Using the STE Bus Macmillan Press, 1989.
W.W. Peterson Error Correcting Codes Wiley, 1961.
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© 1995 R. J. Mitchell
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Mitchell, R.J. (1995). Sequential Logic. In: Microprocessor Systems. Palgrave, London. https://doi.org/10.1007/978-1-349-13812-8_6
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DOI: https://doi.org/10.1007/978-1-349-13812-8_6
Publisher Name: Palgrave, London
Print ISBN: 978-0-333-64190-3
Online ISBN: 978-1-349-13812-8
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