Problem 3.3 Only

Table 2-1

3.3. Write an entity declaration for each of the TTL devices in Table 2-1. 3.4. Write an entity declaration for a 4-bit magnitude comparator. Name the nutnut nort alth for "a less than b." 7400 Table 2-1 TTL Series 54/74 logic circuits 54/74 Series Description Quadruple 2-input positive-NAND gates: Y = AB Quadruple 2-input positive-NOR gates: Y = A + B Hex inverters: Y = Quadruple 2-input positive-AND gates: Y = AB 8-input positive-NAND gates: Y = ABCDEFGH 7402 7404 7408 7430 7432 7451 7474 Quadruple 2-input positive-OR gates: Y = A + B Dual AND-OR-INVERT gates: Y = AB + CD Dual D-type positive-edge-triggered flip-flops with preset and clear 4-bit binary full adder with fast carry Quadruple 2-input exclusive-OR gates: Y = A OB 7483 7486 74109 74157 74163 Dual J-K positive-edge-triggered flip-flops with preset and clear Quadruple 2-to-1 multiplexers Synchronous 4-bit counter with synchronous clear 9-bit odd/even parity generator/checker Octal D-type flip-flops 74180 74374