DRAM uses a _______ to store a bit in each cell. A.transistor B.diode C.capacitor D.flip-flop

show the classification of semiconductor memories.

Electric system Write 8051 program to receive bytes of data serially and put them in P1, Set the baud rate as 9600, 8 bit data and one stop bit.

Q. To interface memory with the microprocessor, connect register the lines of the address bus must be added to address lines of the chip. A. single B. memory C. multiple D. triple

1. 3x8 Decoder Circuit (FULL Logic Circuit)

logic gates

The required 7-segmrnt decoder should have 3-inputs (which are the bits of the binary number desired to be designed, call them A,B,C), and 7 outputs (the 7 segments of the display unit which are a, b, c, d, e, f & g). 8. gf a b t la Ob d Dp e d8c Dp The 7-segment to be used is of common anode type. Consequently, any segment will be ON if its input is Low, meaning that for displaying 0 the segments inputs (a,b,c,d,e,f.g) should be (0000001), or g will be OFF while all the others are ON. 1- Make a table explaining the inputs and the corresponding outputs for the 6 combinations input (000.101), assuming the other two combinations as don't care. 2- Find the output as a function of the inputs (A,B,C) using K-map to minimize the expressions 3- Show your design using 2-input, and 3-input NAND gates, and inverter.

Design a combinational circuit using multiplexer for a car chime based on thefollowing system: A car chime or bell will sound if the output of the logic circuit(X) is set to a logic ‘1’. The chime is to be sounded for either of the followingconditions:• if the headlights are left on when the engine is turned off and• if the engine is off and the key is in the ignition when the door is opened.Use the following input names and nomenclature in the design process:• ‘E’ – Engine. ‘1’ if the engine is ON and ‘0’ if the engine is OFF• ‘L’ – Lights. ‘1’ if the lights are ON and ‘0’ if the lights are OFF• ‘K’ – Key. ‘1’ if the key is in the ignition and ‘0’ if the key is not in the ignition• ‘D’ – Door. ‘1’ the door is open and ‘0’ if the door is closed• ‘X’ – Output to Chime. ‘1’ is chime is ON and ‘0’ if chime is OFF

(a) Consider the flipflop circuits below: (i) Name the 2 circuits given in the figure. Explain how they are different from each other. a. b. (ii) Choose from the list the input that triggers data to travel to the next flipflop in a counter. A: Input at top NAND gate B: Input at bottom NAND gate C: Clock input clk Q

Please give me correct solution.