8/19/2023 0 Comments Counter 1 2 4 8 16![]() The number where the BCD circuit can count is termed as “Modulus” also called “Mod”. In this way, many counters can have a series connection in order to count up to our required number. The circuit counts from decimal ‘0’ to ‘9’ and after this NAND gate resets the circuits and starts to count again from ‘0’ that is 0000. So, the circuits hold the capability of counting 16 states (means 16 bits) where only 10 out of 16 are utilized. In the circuit diagram of the decade counter, the operation is explained in four stages where every stage is included with a flip flop. The most common implementation of this counter is in 74LS90 which is an asynchronous decade counter. A four-bit decade counter will operate as a BCD counter by skipping any 6 outputs from the 24 outputs. The values that a BCD counter counts are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 in binary format, and many others. As the counter counts ten unique combinations of the applied input, it is termed a decade counter. ![]() It performs the operation of resetting automatically when there is a new clock input signal. ![]() In consideration of this, this article today explains on BCD counter, its operation, design, and implementations? What is BCD Counter or Decade Counter?Ī BCD (Binary Coded Decimal) counter also termed as decade counter is a series type of digital counter which is designed to count ten digits. With this operation, counters are usually employed in many applications and these are designed as isolated IC’s and even integrated into huge integrated circuits. Every pulse that acts as input to the clock either increases or decreases the numbers count on the counter. The generally used type is a sequential digital logic circuit having an input line termed as a clock and has multiple output lines and the values those are on the output lines signify a number in the binary system. In the scope of digital logics, a counter is a tool that accumulates the information of how many times a specific process or event is occurring probably like a clock.
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