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Ñòóäåíòàì > Ðåôåðàòû > Îïèñàíèå ðàáîòû ýëåêòðè÷åñêîé ñõåìû îõðàííîãî óñòðîéñòâà

Îïèñàíèå ðàáîòû ýëåêòðè÷åñêîé ñõåìû îõðàííîãî óñòðîéñòâà

Ñòðàíèöà: 4/6

 

                                                                   3                                       16

 

                   4                                       15

                                                                   

   5           1008ÂÆ10            14

 

                                                                    6                                      13

                                                                   

    7                                      12

 

                                                                    8                                      11

                                                               

                                                                    9                                      10

                                                                                                                                 

Ðèñ. 4.4. Öîêîë¸âêà  êîðïóñà 1008ÂÆ10 (ïëàñòìàññîâûé êîðïóñ òèïà 2104.18-10).

 

 

           

 

Íàçíà÷åíèå âûâîäîâ ìèêðîñõåìû :

1        - Ucc  - íàïðÿæåíèå ïèòàíèÿ ;

2        - Uref - âõîä ñõåìû îãðàíè÷åíèÿ ;

3        -  COL1    

4        -  COL2          -  êëàâèàòóðíûå âõîäû (ñòîëáöû);        

5        -  COL3    

6        - GND - çåìëÿ ;

7        -  RD        

8        -  C                 -  âûâîäû äëÿ ïîäêëþ÷åíèÿ RC-öåïè ãåíåðàòîðà;      

9        -  RC        

10    -  PPS -  âûáîð ÷àñòîòû èìïóëüñîâ êîäîâîé ïîñûëêè;

11    -  M/B -  âûáîð îòíîøåíèÿ èìïóëüñ/ïàóçà;

12    -  MUTE  -  âûõîä ðàçãîâîðíîãî êëþ÷à;

13    -  ROW4   

14    -  ROW3                -  êëàâèàòóðíûå âõîäû (ñòðîêè);

15    -  ROW2  

16    -  ROW1  

17    -  HS  -  âõîä îò «ðû÷àæíîãî ïåðåêëþ÷àòåëÿ» (ïîëîæåíèå òðóáêè);

18    -  DP  -  âûõîä èìïóëüñíîãî êëþ÷à.

 

 

 

Áëîê çàäàíèÿ ðåæèìîâ

 

 

Ëîãèêà óïðàâëåíèÿ

 

 

 

Âõîäíàÿ

ëîãèêà

êëàâèàòó   ðû

 

 

 

Ðèñ. 4.5. Ñòðóêòóðíàÿ  ñõåìà 1008ÂÆ10 :

 

 

Áëîê ôîðìèðîâàíèÿ âûõîäíûõ ñèãíàëîâ

 

 

ÎÇÓ 32x4 áèò

 

                     13                                                                                              

                     14                                                                                               12

                     15

                     16                                                                                               18

                       3

                       4                                                                                   18

                       5

                      

                      

                     17

                                                                                                                       

                     11                                                                                               2

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