Bidirectional Shift Register
Bidirectional shift registers are the storage devices which are capable of shifting the data either right or left depending on the mode selected. Figure 1 shows an n-bit bidirectional shift register…
Buffer Register and Controlled Buffer Register
Buffer registers are a type of registers used to store a binary word. These can be constructed using a series of flip-flops as each flip-flop can store a single bit. This means that…
Schmitt trigger
Schmitt trigger is an electronic circuit with positive feedback which holds the output level till the input signal to comparator is higher than the threshold.It converts a sinusoidal or any…
Conversion of Flip-flops
Flip-flops are the basic building blocks of Sequential Circuits which can be converted from one form to another capable of storing a single bit of data As flip-flops are bistable…
Edge-triggered Flip-Flops
So far, we’ve studied both S-R and D latch circuits with enable inputs. The latch responds to the data inputs (S-R or D) only when the enable input is activated.…
Gated Latches
Gated SR latchA synchronous SR latch (sometimes clocked SR flip-flop) can be made by adding a second level of NAND gates to the inverted SR latch (or a second level of AND gates…
The S-R Latch
A bistable multivibrator has two stable states, as indicated by the prefix bi in its name. Typically, one state is referred to as set and the other as reset. The simplest bistable device, therefore, is known as…
Priority Encoder
Priority Encoders take all of their data inputs one at a time and converts them into an equivalent binary code at its output Unlike a multiplexer that selects one individual…
Keyboard Encoder
A keyboard encoder is basically decimal to 8-4-2-1 BCD encoder. The truth table for decimal to BCD conversion can be represented like as follows, From the above truth table it is cleared that, the…
BCD to 7 Segment Display
A seven-segment display is an electronic display device for displaying decimal numerals. Seven-segment displays are widely used in digital clocks, electronic meters and other electronic devices that display numerical information.…
