Question: a) A decoder 74LS138 is to interface with 8085 microprocessor and a memory for perfect communication. Their specifications are 16 pins, 8-active output with

a) A decoder 74LS138 is to interface with 8085 microprocessor and a

a) A decoder 74LS138 is to interface with 8085 microprocessor and a memory for perfect communication. Their specifications are 16 pins, 8-active output with 1 active at a time, 6 -input- main (Ao -Ay and enable (E-E3). Below is a pin diagram of 74LS138 decoder/ DE multiplexer Vcc 00 0 02 03 04 05 06 16 15 14 13 10 O 2 3 4 O 6 7 8 Ao A1 A2 E1 E2 E3 O7 GND As an Engineer with much knowledge in microprocessor interfacing design a truth table of a perfect configuration and explain how the truth table is applicable to a specific microprocessor. AP (9 marks) b) With your understanding in microprocessors, could you please sketch the Pin description of 8085 microprocessor with labels? Write to demonstrate its properties, logical pin layout and signal controls. AP( 5 marks) c)As engineer ,could you please demonstrate your understanding in your own words by comparing the characteristics of Microprocessor and Microcontroller. AN( 6marks)

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a Design a truth table of a perfect configuration The decoder accepts 3 inputs A0 A1 A2 and when provides 8 Outputs O0O7 The 74LS138 has 3 inputs from which 2 are on LOW state ie represented by zero E... View full answer

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