Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

VHDL

VHDL (VHSIC hardware description language) is a hardware description language that can model the behavior and structure of digital systems at multiple levels of abstraction, ranging from the system level down to that of logic gates. It can be used for design entry, documentation, and verification. The language was developed for the US military VHSIC…

Standards, History & Products

Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.

Research this topic

Explore the main themes, entities and connections around VHDL. Start with the topic map, then use the sections below for research and deeper semantic analysis.

Explore this topic

Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Filename extensions
.vhd
First appeared
1980s
Paradigm
concurrent, reactive, dataflow
Stable release
IEEE 1076-2019 / 23 December 2019; 6 years ago (2019-12-23)
Typing discipline
strong

Topics to explore

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Overview

History

Design

Advantages

Design examples

Standard libraries

VHDL simulators

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

Map overview Semantic statistics

VHDL

Nodes78
Edges77
Triples155
Avg. degree1.97
Density0.025641
Components1

How this topic connects Entity context

See the strongest relationship patterns around the current topic before diving into the raw triples.

VHDL

Top relations

related to Further reading · 69
VHDL → Accurately Simulating, Andrew, Andrés, Archived, Ashenden, Board-level, Board-level Simulation, Bryan Mealy, Chichester, Chip, CICC, Comparing Verilog, Connecting, Custom Integrated Circuits Conference, David, EDCC, EE Times, Effects, Electrical, Electronics Engineers
related to Standardization · 11
VHDL → F33615-83-C-1003, IBM, IEEE Standard, Inc, Intermetrics, It, Texas Instruments, The, The IEEE Standard, United States Air Force, VHSIC Hardware Description Language
related to history · 9
VHDL → ASIC, ASICs, Defense, Department, In, Microelectronic Devices, MIL-STD-454N, Requirement, The
related to Synthesizable constructs and VHDL templates · 8
VHDL → ASIC, For, FPGA, IEEE, It, Not, Synthesis, While
related to Simulation-only constructs · 7
VHDL → For, In, It, MHz, Such, The, This
see also · 7
VHDL → AHDL, Altera Hardware Description Language, Chisel, Hardware, HDL, Open-source, System-level
related to Design · 5
VHDL → For, Such, The, This, Zero
related to Example: a counter · 5
VHDL → Care, CLK, It, More, The
related to Design examples · 4
VHDL → AND, In, In VHDL, Some
related to External links · 4
VHDL → Analysis, Official, Standardization Group, VASG

Important terminology Word statistics

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

ieee 1076 design standard language logic used example hardware simulation synthesis use code constructs also circuit types iec one system

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
VHDLFilename extensions.vhd1.00infobox
VHDLFirst appeared1980s1.00infobox
VHDLParadigmconcurrent, reactive, dataflow1.00infobox
VHDLStable releaseIEEE 1076-2019 / 23 December 2019; 6 years ago (2019-12-23)1.00infobox
VHDLTyping disciplinestrong1.00infobox
VHDLWebsiteIEEE VASG1.00infobox
VHDLis adataflow language in which every statement is considered for execution simultaneously0.90text
a CPLD or FPGAinstance ofa loop process or an iterative statement is required.When a VHDL model is translated into the gates and wires that are mapped onto a programmable logic device0.80text
then it is the actual hardware being configuredinstance ofa loop process or an iterative statement is required.When a VHDL model is translated into the gates and wires that are mapped onto a programmable logic device0.80text
rather than the VHDL code being executed as if on some form of a processor chipinstance ofa loop process or an iterative statement is required.When a VHDL model is translated into the gates and wires that are mapped onto a programmable logic device0.80text
BASICinstance ofunlike procedural computing languages0.80text
Cinstance ofunlike procedural computing languages0.80text

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    Min side: 3
    For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.