BCD/Decade counter (Assembled) module using 74LS90 IC
An advanced BCD/Decade counter module using 74LS90 which can be used to design 0-9 BCD counter. Connections are provided in the circuit to cascade next BCD/Decade counter module to create a 00-99 counter. Similarly, cascading 3 modules we could create 000-999 counter and so on. RC circuit in the module will help to reset the counter to 0 when the power is turned off and turned on again. Count button will increment the counter value. Reset button will reset the count to 0.