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Examples of don't-care terms are the binary values 1010 through 1111 (10 through 15 in decimal) for a function that takes a binary-coded decimal (BCD) value, because a BCD value never takes on such values (so called pseudo-tetrades); in the pictures, the circuit computing the lower left bar of a 7-segment display can be minimized to a b + a c by an appropriate choice of circuit outputs for ...
Many non-integral values, such as decimal 0.2, have an infinite place-value representation in binary (.001100110011...) but have a finite place-value in binary-coded decimal (0.0010). Consequently, a system based on binary-coded decimal representations of decimal fractions avoids errors representing and calculating such values.
In computer science, the double dabble algorithm is used to convert binary numbers into binary-coded decimal (BCD) notation. [ 1 ] [ 2 ] It is also known as the shift-and-add -3 algorithm , and can be implemented using a small number of gates in computer hardware, but at the expense of high latency .
Binary-coded decimal (BCD) is a binary encoded representation of integer values that uses a 4-bit nibble to encode decimal digits. Four binary bits can encode up to 16 distinct values; but, in BCD-encoded numbers, only ten values in each nibble are legal, and encode the decimal digits zero, through nine.
Densely packed decimal (DPD) is an efficient method for binary encoding decimal digits.. The traditional system of binary encoding for decimal digits, known as binary-coded decimal (BCD), uses four bits to encode each digit, resulting in significant wastage of binary data bandwidth (since four bits can store 16 states and are being used to store only 10), even when using packed BCD.
BCD to decimal decoder / Nixie tube driver open-collector 70 V 16 DM7441A: 74x42 1 BCD to decimal decoder 16 SN74LS42: 74x43 1 excess-3 to decimal decoder 16 SN7443A: 74x44 1 Gray code to decimal decoder 16 SN7444A: 74x45 1 BCD to decimal decoder/driver open-collector 30 V / 80 mA 16 SN7445: 74x46 1 BCD to 7-segment display decoder/driver open ...
In digital electronics, a binary decoder is a combinational logic circuit that converts binary information from the n coded inputs to a maximum of 2 n unique outputs. They are used in a wide variety of applications, including instruction decoding, data multiplexing and data demultiplexing, seven segment displays, and as address decoders for memory and port-mapped I/O.
Binary-coded decimal, a representation of decimal digits in binary BCD (character encoding), a 6-bit superset of binary-coded decimal derived from the binary encoding of the same name; Boot Configuration Data, the configuration data required to boot Microsoft Windows Vista and later; Bipolar-CMOS-DMOS, a type of BiCMOS semiconductor technology