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Digital Electronics
NUMBER SYSTEM
BINARY CODES
BOOLEAN ALGEBRA
K MAPS
COMBINATIONAL CKT
SEQUENTIAL CIRCUITS
INTRODUCTION
CLOCK
BISTABLE MULTIVIBRATOR
DERIVATION of FLIPFLOP circuit
RS FLIPFLOP
RS FLIPFLOP(NAND IMPLEMENTATION)
R'S' FLIPFLOP
Clocking RS LATCH
Other LATCHes
Timing problem in LATCHES
MORE QUESTIONS
TIMING CIRCUITS

 

Shift register:

In this type of register value stored in the register can be either shifted to left or right depending upon the circuit as:

PARALLEL IN PARALLEL OUT:

This type of shift registers is already discussed above.

SERIAL IN SERIAL OUT:

Right shift: Here data is shifted by one bit from left to right with every clock tick.

 

 

Left shift: Here data is shifted by one bit from right to left with every clock tick

SERIAL IN PARALLEL OUT: In this type of register we firstly load data serially in the register. For a 4-it register we’ll need 4 clock cycles to load data and then output comes out in parallel mode.

PARALLEL IN SERIAL OUT:  In this type of shift registers we first input the Parallel data by using LOAD=1 and then data is shifted and data comes out serially.

 

 

 

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