Synchronous Sequential Circuits or Clocked Sequential Circuits: In Synchronous Sequential Circuits or clocked sequential circuits, clocked flip-flops are used as memory elements, which change their individual states in synchronism with the periodic clock signal. Therefore,…
Performance of CMOS Gates: The Performance of CMOS Gates which based on following different categories namely, Operating Speed : Slower than TTL series. Approximately 25 to 100 ns depending on the subfamily of CMOS Inverter…
CMOS NOR Gate Circuit: Fig. 3.4 shows 2-input CMOS NOR Gate Circuit. Here, P-channel MOSFETs Q1 and Q2Â are connected in series and N-channel MOSFETs Q3 and Q4Â are connected in parallel. Like NAND circuit, this circuit…
CMOS NAND Gate Circuit Diagram: Fig. 3.3 shows CMOS NAND Gate Circuit Diagram 2-input NAND gate. It consists of two P-channel MOSFETs, Q1 and Q2, connected in parallel and two N-channel MOSFETs, Q3 and Q4…
Parallel Adder and Subtractor: Parallel Adder and Subtractor which consists of three categories, namely,  n Bit Parallel Adder,Binary Parallel Adder and n Bit Parallel Subtractor. n Bit Parallel Adder: We have seen, a single…
Half Subtractor and Full Subtractor Circuit: Subtractor are divided into two categories namely, half subtractor and full subtractor circuit. Half Subtractor Circuit: The Half Subtractor Circuit consists of four possible elementary operations, namely, In all…
Half Adder and Full Adder Circuit: Adders are divided into two categories namely, half adder and full adder circuit. Half Adder Circuit: The Half Adder Circuit operation needs two binary inputs : augend and addend…
Programmable Array Logic (PAL): We have seen that PLA device with a Programmable AND array and Programmable OR array. However, Programmable Array Logic (PAL) is a programmable logic device with a fixed OR array and…
Programmable Logic Array (PLA) | Block Diagram of PLA: The combinational circuit do not use all the minterms every time. Occasionally, they have don't care conditions. Don't care condition when implemented with a ROM becomes…
Read Only Memory (ROM): A Read Only Memory (ROM) is a device that includes both the decoder and the OR gates within a single IC package. The Fig. 3.82 shows the block diagram of ROM.…
