tailieunhanh - Circuits & Electronics P5

Inside the Digital Gate Fall 2000 Lecture 5 1 .Review The Digital Abstraction Discretize value 0, 1 Static discipline meet voltage thresholds sender VOH VOL receiver VIH VIL forbidden region Specifies how gates must be designed Fall 2000 Lecture 5 2 .Review Combinational gate abstraction outputs function of input alone satisfies static discipline A B C NAND A 0 0 1 1 B 0 1 0 1 C 1 1 1 0 Fall 2000 Lecture 5 3 .For example: a digital circuit A B C A⋅ B Demo D ) D = ( ⋅ (A ⋅ B ) C 3 gates here A Pentium III class microprocessor is a circuit with over 4 million gates !! The RAW chip being built at the Lab. | CIRCUITS AND ELECTRONICS Inside the Digital Gate Fall 2000 Lecture 5 1 Review The Digital Abstraction Discretize value 0 1 Static discipline meet voltage thresholds sender receiver -forbidden region Specifies how gates must be designed Fall 2000 Lecture 5 2 Review Combinational gate abstraction outputs function of input alone satisfies static discipline A - B A B c zzQ c 0 0 1 NAND 0 1 1 1 0 1 1 1 0 Fall 2000 Lecture 5

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