Assignment title: Information


ASK 1: (LO4.1) a) Using Manufacturer's datasheets complete the table below using Nominal values for the logic families. LS TTL ALS TTL CMOS HCMOS VIL VIH IIL IIH VOL VOH IOL LOH Fan-out Noise Margin b) Define the terms Fan-out and Noise Margin. TASK 2: (LO4.2a & LO4.3a) Using simulation software Design a circuit whose output goes HIGH when its inputs are: A is high and B is low and either input C or input D is also HIGH. Procedure: a) Derive a Boolean that describes the performance of the required circuit. b) Rearrange the expression in Sum-of-Products (SOP) form. c) Using simulation software, Draw the circuit diagram and simulate its operation. d) Produce a four-variable truth table and apply all combinations of input variables to the circuit and each time note the logical state. e) Demonstrate the circuit operation to your tutor. A B C D F 0 0 0 0 0 0 0 1 0 0 1 0 0 0 1 1 0 1 0 0 0 1 0 1 0 1 1 0 0 1 1 1 1 0 0 0 1 0 0 1 1 0 1 0 1 0 1 1 1 1 0 0 1 1 0 1 1 1 1 0 1 1 1 1 Opportunity for Distinction (Part A) (Both Part A and Part B must be completed for D2) Demonstrate, with photographic evidence, that you have simulated the circuit in Task 2 .D2 Opportunity for Merit Use Karnaugh Maps to check the SOP found in task 2 Part B, is equivalent to the original Boolean expression, found in Part a. M2 TASK 3: (LO4.2b & LO4.3b) a) Design a 4 bit asynchronous counter using JK flip flops to count between 2 and 9. Your design must include: Flow diagram Sequence table Karnaugh maps b) Using a Multisim, construct the counter and demonstrate to your Tutor. Opportunity for Merit Produce a report containing the information found for TASKs 2 and 3. You will need to use a variety of word processing features and circuit diagrams created in Multisim. You will also need to use engineering language correctly. M3 Opportunity for Distinction: (Part B) (Both Part A and Part B must be completed for D2) Demonstrate, with photographic evidence, that you have built the circuit in Task 3.