SU1136146A1 - Logic module - Google Patents

Abstract

A LOGICAL MODULE containing the AND elements OR, the inputs of the first AND element being connected to the first and second inputs of the module, respectively, and the code of the first AND element connected to the first input of the first one; IL, the second input of which is connected to the third input of the module, the output of the first OR is connected to the first input of the second element AND, the second and third inputs are connected to the fourth and fifth inputs of the module respectively, the output of the second element AND is connected to the first input of the second element OR, first entry of the third element. And connected to the sixth input of the module, the output of the third element AND connected to the first input of the third element OR, characterized in that, in order to expand the functionality of the module by implementing all non-repeatable functions of five variables, the second input of the third element And is connected to the seventh input of the module, the second input of the third element IL is connected to the eighth input of the module, the output of the third element OR is connected to the second input of the second OR element, the output of which is connected to the first input of the fourth AND element, the second input of which th is connected to a ninth input of the modulation, the outputs of the fourth AND gate connected: C PRYA1H & 1M and inverse modulation respectively.

Description

The invention relates to computing and microelectronics intended for the implementation of all non-repetitive logic functions of n1% of variables and can be used in the development and design of integrated digital devices and circuits of the widest use. A logic module is known that implements a non-repetitive function of five variables containing AND-NOT, AND-OR-NOT, NOT p 3 elements. The disadvantage of this module is its low speed and high complexity. The closest in technical essence to the proposed is a multifunctional logical module 9 containing elements AND, OR and realizing non-repetitive functions of four languages and five C2 variables. However, a well-known logical module does not allow realizing all non-repetitive functions of five variables, the total number of which is 24, which reduces its scope. The purpose of the invention is to expand the functionality of the module by implementing all non-repetitive functions of five variables. The goal is achieved by the fact that in the logical module containing AND, OR elements, the inputs of the first element AND are connected to the first and second inputs of the module, respectively, the output of the first element AND is connected to the first input of the first ICH element, the second input of which is connected with the third input module I output the first element OR. The second and third inputs of which are connected to the fourth and fifth inputs of the module, respectively, the output of the second element AND connected to the first input of the second element OR, the first input of the third element And connected to the sixth input of the module, the third output element AND connected to the first input of the third element OR, the second input of the third element AND connected to ssdm module input, the second input of the third element OR connected to the eighth input of the module, the output of the third element OR connected to the second input of the second e ementa OR, whose output is connected to the first element consist: petnertogo And, the second input of which is connected to a ninth input of the modulation, the outputs of the fourth AND gate connected with the direct and inverse outputs modulation respectively. The drawing shows the functional diagram of the module. The module contains inputs 1-9, outputs 10 and 11, elements AND 12 and 13, elements OR 14 and 15, element AND 16, element OR 17 and element AND 18. The module operates as follows. At inputs 1-9, input variables X - Xg and constants 1.0 are supplied. In this case, the output value of 10 takes the direct value of the non-repetitive function of five variables, and the output of output 11, the inverse value. The values of the input signals at the inputs 1–9 in the implementation of all non-repetitive functions of five variables are presented in the table. Consider the functioning of the module when implementing, for example, the function x1x2 (x3x4v x5). In accordance with the table, inputs 1–9 of the module should be submitted with a set of signals x3, x4.0.0, x5, x1, x2. O, 1. At the same time, from the output of the element 12, the functions x3x4, from the output of the element OR 14 x3x4vx5, from the output of the element AND 16 (x3x4vx5) x1x2, from the output of the element OR 15 - logical O from the output of the element 18 and 18 (output 10 module) - function x1x2 (x3 x4Vx5). Similarly, the module functions when implementing the other non-repetitive logical functions of five variables. Thus, the proposed logic module, in contrast to the well-known one, implements all the logical functions of five variables and at the same time contains four AND, OR less logical elements. For a comparative analysis of the proposed module, the base element of the KPG series KPG series has been selected. However, the given microcircuit does not allow to implement all non-repeated logical functions of five variables, a. implements only some of them and has a large number of information inputs (17). To implement all non-repetitive functions of five variables based on

KP1 chips need their cascade connection, which in general will lead to a significant complexity of the design.

The proposed module should be used in the design and development of integrated circuits and multi-functional automat.

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1 Ox1x1 (x2x3vx4x5) хЗ х4 х5

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(x1vx2vx3vx4) x5

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(x2vx2vx3x4) x5 x1v (x2vx3vx4) x5 xlv (x2vx3) (x4vx5) x1 (x2vx3) x4vx5)

Claims (1)

. LOGIC MODULE containing AND, OR elements, the inputs of the first AND element connected to the first and second inputs of the module, respectively, the output of the first AND element connected to the first input of the first; OR element, the second input of which is connected to the third input of the module, the output of the first OR element is connected with the first input of the second AND element, the second and third inputs of which are connected to the fourth and fifth inputs of the module, respectively, the output of the second AND element is connected to the first input of the second OR element, the first input of the third element. And connected to the sixth input of the module, the output of the third element AND is connected to the first input of the third OR element, characterized in that, in order to expand the functionality of the module by implementing all the unique functions of the five variables, the second input of the third element And is connected to the seventh input of the module, the second the input of the third OR element is connected to the eighth input of the module, the output of the third OR element is connected to the second input of the second OR element, the output of which is connected to the first input of the fourth AND element, the second input of which union of the ninth module input, the outputs of the fourth element, and is connected with direct and inverted outputs of the modulus, respectively.