Edge triggered flip flop circuit diagram

NOTE: в†‘В indicate positive edge of the clock andВ в†“ indicate negative edge of the clock signal. Simply, for positive transition on clock signal, Hence the output Q follows the input D in the presence of clock signal. If the clock signal is high (rising edge to be more precise) and if D input is high, then the output is also high and if D input is low, then the output will become low. It will retain its previous value at the output Q. When we donвЂ™t apply any clock input to the D flip flop or during the falling edge of the clock signal, there will be no change in the output. The circuit diagram of D flip вЂ“ flop is shown in below figure.

The major drawback of SR flip вЂ“ flop is the race around condition which in D flip вЂ“ flop is eliminated (because of the inverted inputs). Hence a D flip вЂ“ flop is similar to SR flip вЂ“ flop in which the two inputs are complement to each other, so there will be no chance of any intermediate state occurs. The S input is given with D input and the R input is given with inverted D input. The symbol of a D flip вЂ“ flop is shown below.ДЄ D flip вЂ“ flop is constructed by modifying an SR flip вЂ“ flop. Apart from being the basic memory element in digital systems, D flip вЂ“ flops are also considered as Delay line elements and Zero вЂ“ Order Hold elements.Д flip вЂ“ flop has two inputs, a clock (CLK) input and a data (D) input and two outputs one is main output represented by Q and the other is complement of Q represented by QвЂ™. They are one of the widely used flip вЂ“ flops in digital electronics. They are used to store 1 вЂ“ bit binary data.

238000000034 method Methods 0.D flip вЂ“ flops are also called as вЂњDelay flip вЂ“ flopвЂќ or вЂњData flip вЂ“ flopвЂќ.

230000000875 corresponding Effects 0.000 abstract description 3.

238000004891 communication Methods 0.000 claims description 8.

230000000295 complement Effects 0.000 claims abstract description 31.

230000001960 triggered Effects 0.000 title claims abstract description 30.

Publication of US20070013424A1 publication Critical patent/US20070013424A1/en Status Abandoned legal-status Critical Current Links Assignors: EPSON RESEARCH AND DEVELOPMENT, INC.

Assigned to SEIKO EPSON CORPORATION reassignment SEIKO EPSON CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). reassignment ESPSON RESEARCH AND DEVELOPMENT, INC. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by ESPSON RESEARCH AND DEVELOPMENT Inc, Seiko Epson Corp filed Critical ESPSON RESEARCH AND DEVELOPMENT Inc Priority to US11/184,205 priority Critical patent/US20070013424A1/en Assigned to ESPSON RESEARCH AND DEVELOPMENT, INC. Original Assignee ESPSON RESEARCH AND DEVELOPMENT Inc Seiko Epson Corp Priority date (The priority date is an assumption and is not a legal conclusion.

Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Abandoned Application number US11/184,205 Inventor Muralikumar Padaparambil Current Assignee (The listed assignees may be inaccurate. Google Patents US20070013424A1 - Differential dual-edge triggered multiplexer flip-flop and method US20070013424A1 - Differential dual-edge triggered multiplexer flip-flop and method

Edge triggered flip flop circuit diagram