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2009组合课堂测试
Digital design: test in class 1 (2009 )
Name： ID:
Note: Please finish all your works on the test sheets .
Fill the blanks ( 2 point for each)
1-1 ( 323.4375 )10 =( ) 2
1-2 (1101．0011) 2 = ( )10
1-3 (7A．C4) 16 = ( )8
1-4 ( 4531 )10 = ( ) 8421BCD
1-5 (000110010101）8421-BCD =（ ）Excess-3
1-6 2 = ( )Gray
1-7
Decimal number +51 -72 8-bit SM code 8-bit Two’s code
1-8 The unused input port for Nand4 should be connected to
( );
1-9 If the parameter for a CMOS is as follows:
VOLmax = 0.5 V, VOHmin = 2.7 V, VILmax = 0.8 V, VIHmin = 2.0 V;
Then its noise margin for high level output is（ ）.
1-10 The numbers of transistor in following device will be :
NAND 4: ( ) AND2: ( ) AOI ( 2,2): ( )
Fill the blanks ( 3 point for each)
2-1 The Karnaugh map of logic function is
2-2 The minterm list of is
( ).
2-3 The minimal sum of is
( ).
2-4 Given the circuit as follows:
Its Canonical sum is ( ).
2-5 The maxterm list of the function is ( ).
2-6 The duality of the function is ( ).
2-7 Given the function ; The minimal sum of its complement is ( ).
2-8 Given the function ;Its minimal product is ( ).
2-9 Given the logic circuit as follows:
The minimal sum of the output function is ( ).
2-10 Given the logic circuit as follows:
The minimal sum of the output function is ( ).
3 Select the right answers ( 3 point for each)
3-1 The output of a NAND4 will be 0 with the condition: ( )
All o
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