logic element
Học thuậtThân thiện
Definition
Noun: An electronic device that performs a single, fundamental logic operation. It is a basic building block in digital circuits and computing systems, implementing operations such as AND, OR, NOT, NAND, or NOR.
Usage
A logic element is a physical component within an integrated circuit or a programmable chip. It processes binary inputs (typically represented as 0s and 1s, or low and high voltages) to produce a single binary output based on a specific logical rule. * The design of the processor depends on the efficient interconnection of millions of logic elements. * A single logic element in this FPGA (Field-Programmable Gate Array) can be configured as a simple gate.
Advanced Usage
- In hardware description languages (HDLs) like VHDL or Verilog, a logic element often refers to the smallest configurable unit of a programmable logic device, which may contain a lookup table and a flip-flop.
- The term can be used more abstractly in computer science to describe a fundamental unit of logical function, even if not implemented as a distinct physical device.
Variants and Related Words
- Logic gate: A very close synonym, though a "gate" is often considered a specific, simple type of logic element (like AND, OR). A logic element in modern FPGAs is typically more complex and configurable than a single gate.
- Combinational logic element: A logic element whose output depends only on the current inputs.
- Sequential logic element: A logic element that contains memory, so its output depends on both current and past inputs (e.g., a flip-flop).
Synonyms
- Logic gate
- Digital gate
- Boolean element
Related Phrases
- Array of logic elements: Refers to the collection of these basic units in a programmable device.
- Configurable logic element (CLE): A logic element whose function can be programmed after manufacturing.
Noun
- an electronic device that performs an elementary logic operation