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092_第二次段考_微處理機

Authored by 電訊科陳俊成 電訊科陳俊成

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11th Grade

Used 1+ times

092_第二次段考_微處理機
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20 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

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如圖(1)所示係由NOR閘所組成的RS閂鎖器(Latch),則其真值表最有可能為下列何者?

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2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

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如圖(2)所示NOR閘組成的電路,若發光二極體(LED)不發亮,如欲使發光二極體發亮,要如何操作按鈕開關A與按鈕開關B?

按鈕開關A導通(ON),按鈕開關B斷開(OFF)

按鈕開關A斷開(OFF),按鈕開關B斷開(OFF)

按鈕開關A斷開(OFF),按鈕開關B導通(ON)

操控按鈕開關A或按鈕開關B均無法使LED發亮

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

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如圖(3)所示,電路在輸入圖(4)中的時脈CLK及輸入訊號Y後,其輸出訊號Q之波形應為何種波形?

A

B

C

D

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

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如圖(5)為一個D型正反器,下列敘述何者錯誤

腳位D為資料輸入端

腳位PR及CLR為負緣觸發

腳位CK為正緣觸發

腳位PR及CLR在正常操作時不可同時為0。

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

當CLK為1kHz時,以下哪個正反器的輸出不是500Hz?

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6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

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將RS正反器連接成JK正反器如圖(6)所示,若方塊A及方塊B分別僅能使用1個二輸入邏輯閘,則下列何者正確?

方塊A使用AND、方塊B使用OR

方塊A使用NAND、方塊B使用NOR

方塊A使用AND、方塊B使用AND 

方塊A使用NAND、方塊B使用NAND

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

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如圖(7)所示之電路,該電路的真值表(特性表)為下列何者?

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