Using two NAND gates and active low R S flip flop is produced. In other words low going pulses active the flip flop. As it can be seen from the circuit below, the two incoming lines are applied, one to each gate. The other inputs to each of the NAND gates are taken from the outp...
The RS-flip-flop has an inverter (14) coupled to an input terminal (IN), a NOR gate (15) with an enable-set terminal (ENS) and a NAND gate (17) with an enable-reset terminal (ENR), each having a transistor (12,13) coupling it to the inverter. The outputs of the gates are co...
Also, the RS flip-flop is an example of one of the most basic (if not the most basic) implementations of memory: by connecting ground to one of the inputs of the NAND gate outputting zero, one can change its output to one and the other's to zero, and since this state reinforces ...
Flip-flop PUFs uses the power-up values of flip-flops instead of SRAM cells. LPUFs are very similar to SRAM-PUFs and Butterfly PUFs. LPUFs generate each response using a metastable value of a latch composed of cross-coupled logic gates. LPUFs can be implemented on both ASIC and FPGA, ...
When outputs Q and Q of the RS flip- flop maintain a previous state, the latch circuit is activated by a control signal applied from an OR gate to hold a previous logic signal received from the logic circuit. Thus, the logic circuit and latch circuit are arranged on a signal path from...