SU703803A1 - Multifunction logic module - Google Patents

Description

The invention relates to the field of automatics, telemechanics and computing technology. The device is designed to implement all the logical formulas of four or less letters represented in the disjunctive normal form (DNF). Known logic module that implements by setting the logical functions that contain the elements AND, OR, NOT ij. However, this method does not allow realizing by tuning all DNFs of four letters and has a large number of external conclusions. A closer technical solution to the invention is a multifunctional logic module containing two AND elements and an OR element, and the inputs of the first AND element are the first the group of inputs of the module, the first and second inputs of the second element AND are the second group of inputs of the module, the outputs of the first in the second elements AND are connected to the first and second inputs of the first element OR, the output of which is connected with module 2 output, Such a module contains ten inputs and two outputs. Its disadvantage is low reliability due to the large number of external leads. The purpose of the invention is to increase the reliability of the modules. This is achieved by the fact that the module additionally contains the fpH of the element AND of the two OR elements, the first and second inputs of the third element AND are connected respectively to the first and second inputs of the first element AND, the third and fourth inputs of which are connected respectively to the first and second inputs of the fourth element And, the outputs of the third and four elements And are connected to the inputs of the second. OR element whose output is connected to the first input of the fifth AND element connected by the output to the third input of the first OR element, the second input of the fifth AND element is connected to the second input. . the house of the second element, AND, to the third inlet of which is the perforation of the third element OR, the first, second, third and

3,703,803 --- 4

the fourth inputs of the second are connected COOT- 13 and 14 - elements I / 1I, 15 output viyvstvvnn with the first, BTOpijiM, the third module.

The fourth inputs of the first Element I., The device operation under various devices is shown in the drawing, the configuration presses when implementing all the places where the following symbols are used: 1-6-5 representatives of types of non-repetitive module inputs, 7-11 - elements I, 12, DNF out of five letters Table 1 is described; 1.; ,; . Table 1 . .:

.From tab. 1 it follows that the description of my device is implemented in one way and implements by setting up any of five representatives of four-letter non-repetitive DNF.

A sharp reduction in the number of external logical conclusions (seven together-about twelve in the prototype) leads to the gain of the table, 2, that inputs 1, 2 and 3 are used as real information of non-repetitive DNF from three letters Kioryr only as information, and ascends 4, 5 and 6 only as adjusting. Setup settings # 1iq ffiW III: Set up by fixing the inputs with constants.

Since the proposed njrreM module of the settings realizes all representatives of all types of non-repetitive DNFs from four or less letters, with the equal availability of the first and second outputs of the informbCEN and BOBMOxtHOcjra identifying the inputs of the device configured in the fibiM way, it allows realizing

reliability compared with the prototype when implementing a DNF of the specified number of letters. In addition, the device makes it possible to revive the settings of any types of three-letter, non-repetitive DNF types by the user, provided that its information and configuration inputs are independent. The work of the urbanization in this case is given in table. 2

T a b l and C a

Arbitrary (including repeated) DN of four or less letters.

invention formula

A multifunctional logic module containing two AND elements and an OR element, with the inputs of the first AND element being the first group of module inputs, the first and second inputs of the second element AND the HW and the second group of module inputs, the outputs of the first and second AND elements with the first and second the inputs of the first OR element, the output of which is connected to the output of the module, characterized in that, in order to increase

5703

reliability of the module, it additionally supports three elements VI and two elements OR, the first and second inputs of the third And element are connected respectively to the first and second inputs of the first And element, the third and fourth inputs of which are connected to the first and second elements of the fourth and And elements, and outputs the third and fourth elements And are connected to the inputs of the second. the first OR element whose output is connected to the first input of the fifth AND element connected by the output to the third input of the first OR element, the second input

2

c

5 B

The fifth element And is connected to the second inlet. the house of the second element And, to the third input of which the output of the third element OR is connected, the first, second, third and fourth input of which is connected respectively to the first; the second, the third in the fourth inputs of the first element I.

Sources of information taken into account when examining

1. Authors svdedeldtvo USSR № 275524, cl. G 06 F 7/00, 1969.

2. USSR author's certificate N 269599, class, Q 06 F 7/00,

H 03 K 19/00, 1968 (prototype).

$

15 if

12

and

6