Synchronous Counters using JK Flipflop

SYNCHRONOUS COUNTERS

AIM:

To design and set up the following using JK flip flop,

• 4 bit up counter
• 4 bit down counter
• 3 bit up/down counter using mode control
• Mode 5 counter
• Arbitrary counter or sequence generator.

MATERIALS AND TOOLS REQUIRED:

ICs 7476, 7400, digital trainer kit, Power supply.

THEORY:

Synchronous and asynchronous counters provide same outputs. The difference is that in synchronous counters all flip flops are working in synchronism with the input clock pulse.

Circuit Diagram:

PROCEDURE:

Test all the components and IC packages using multimeter or digital IC tester. Set up the circuits one by one and verify the counter states according to the truth table.

RESULT:

The following synchronous counters were set up using JK FF

• 4 bit up &down counters
• 3 bit up /down counter using mode control
• Mode 5 counter
• Arbitrary sequence generator