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Design the interface circuit that conncet 8 push putton (keypad) with the MP by using non-programmble IC's with the address 89H.
Design the interface circuit that conncet 8 push putton (keypad) with the MP by using non-programmble IC's with the address 89H.
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Step: 1
The hex keypad has 8 communication lines namely R1 R2 R3 R4 C1 C2 C3 and C4 R1 to R4 represents the four rows and C1 to C4 represents the four columns ...
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Analysis and Design of Analog Integrated Circuits
Authors: Paul R. Gray, Paul J. Hurst Stephen H. Lewis, Robert G. Meyer
5th edition
1111827052, 1285401107, 9781285401102 , 978-0470245996
