# What is BCD code in digital electronics?

## What is BCD code in digital electronics?

(Binary Coded Decimal) The storage of numbers in which each decimal digit is converted into a binary number and stored in a single 8-bit byte.

### What is BCD code explain with example?

Binary Coded Decimal, or BCD, is another process for converting decimal numbers into their binary equivalents. It is a form of binary encoding where each digit in a decimal number is represented in the form of bits….Truth Table for Binary Coded Decimal.

DECIMAL NUMBER BCD
0 0000
1 0001
2 0010
3 0011

#### Where BCD codes are used?

BCD was commonly used for displaying alpha-numeric in the past but in modern-day BCD is still used with real-time clocks or RTC chips to keep track of wall-clock time and it’s becoming more common for embedded microprocessors to include an RTC. It’s very common for RTCs to store the time in BCD format.

How is BCD code calculated?

In BCD code, each digit of the decimal number is represented as its equivalent binary number….Example 1: (11110) 2.

Binary Code Decimal Number BCD Code
0 0 1 1 3 0 : 0 0 1 1
0 1 0 0 4 0 : 0 1 0 0
0 1 0 1 5 0 : 0 1 0 1
0 1 1 0 6 0 : 0 1 1 0

Is BCD and binary same?

In BCD we can use the binary number from 0000-1001 only, which are the decimal equivalent from 0-9 respectively. This is the main difference between Binary number and binary coded decimal. For 0 to 9 decimal numbers both binary and BCD is equal but when decimal number is more than one bit BCD differs from binary.

## What are excess 3 and Gray code?

Excess-3 Code is a non-weighted BCD (8421) Code. Excess-3 Code is derived from 8421 code by adding 0011 (3) to all code groups. It is a sequential code, thus can be also used for performing arithmetic operations….Excess-3 Code.

Decimal Numbers Binary Numbers Excess-3 Code (Binary Number + 0011)
8 1000 1011
9 1001 1100

### How many bits is a BCD code?

four bits
Note that the BCD code is 12 bits long since each of the decimal digits is coded by four bits.

#### Is binary and BCD same?

Why are BCD codes required?

The main advantage of binary coded decimal is that it allows easy conversion between decimal (base-10) and binary (base-2) form. In the BCD numbering system, a decimal number is separated into four bits for each decimal digit within the number.

Why the BCD and Gray code are so useful?

Gray codes are widely used to prevent spurious output from electromechanical switches and to facilitate error correction in digital communications such as digital terrestrial television and some cable TV systems.

## Is BCD an alphanumeric code?

BCD (binary-coded decimal), also called alphanumeric BCD, alphameric BCD, BCD Interchange Code, or BCDIC, is a family of representations of numerals, uppercase Latin letters, and some special and control characters as six-bit character codes.

### What is the use of BCD code?

BCD code plays an important role in digital circuits. The BCD stands for Binary Coded Decimal Number. In BCD code, each digit of the decimal number is represented as its equivalent binary number. So, the LSB and MSB of the decimal numbers are represented as its binary numbers.

#### What is binary to BCD conversion?

Binary to BCD code conversion BCD code plays an important role in digital circuits. The BCD stands for Binary Coded Decimal Number. In BCD code, each digit of the decimal number is represented as its equivalent binary number.

How many 4 bit numbers can be represented by a BCD?

Any group of 4 bits can represent any decimal value, so long as the relationship for that particular code is known. In fact any ten of the 16 available four bit combinations could be used to represent 10 decimal numbers, and this is where different BCD codes vary.

What are the different codes in digital electronics?

Codes in Digital Electronics – In this article we will talk about different Codes “ BCD Code, Excess-3 Code, Error Detecting Code, ASCII code, and Gray Code/ Reflected Code ” used in digital electronics. Code is used to represent some type of information.