DCircuit Lab
$3.99
3.1for iPhone, iPad
Age Rating
DCircuit Lab Screenshots
About DCircuit Lab
DCircuit Lab is a tool to simulate combinatorial and sequential digital circuits.
Circuits can be simulated in two ways:
1) one single step: all the outputs values are evaluated at the same time
2) step by step: outputs and gates are evaluated one step a time
If circuit contains clock inputs, its simulation is dynamic. This means that outputs change accordingly to the clocks. During this dynamic simulation, user can change inputs values to study the circuit behavior which is also provided via a timing chart.
Circuits are built using basic components, gates and flip-flops:
* inputs (three state: 1, 0, X - undefined)
* outputs
* wires
* NOT, AND, NAND, OR, NOR, XOR gates with any number of inputs
* Flip-flop RS, JK, T, D (Positive or Negative Edge Triggered and with Set and Reset Inputs)
* Multiplexers with any number of inputs
* Demultiplexers with any number of outputs
* Fully configurable Clocks
* Custom Components defined by their truth table
* BCD to 7 Segments Display Decoder
* 7 Segments Display
Some video tutorials are available directly from the application to learn how to use it.
Circuits can be simulated in two ways:
1) one single step: all the outputs values are evaluated at the same time
2) step by step: outputs and gates are evaluated one step a time
If circuit contains clock inputs, its simulation is dynamic. This means that outputs change accordingly to the clocks. During this dynamic simulation, user can change inputs values to study the circuit behavior which is also provided via a timing chart.
Circuits are built using basic components, gates and flip-flops:
* inputs (three state: 1, 0, X - undefined)
* outputs
* wires
* NOT, AND, NAND, OR, NOR, XOR gates with any number of inputs
* Flip-flop RS, JK, T, D (Positive or Negative Edge Triggered and with Set and Reset Inputs)
* Multiplexers with any number of inputs
* Demultiplexers with any number of outputs
* Fully configurable Clocks
* Custom Components defined by their truth table
* BCD to 7 Segments Display Decoder
* 7 Segments Display
Some video tutorials are available directly from the application to learn how to use it.
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What's New in the Latest Version 3.1
Last updated on Nov 7, 2023
Old Versions
- Completely redesigned
- Components with any number of inputs and/or outputs
- Custom Components
- Built In Flip-Flops can now be Positive or Negative Edge Triggered and have Set and Reset Inputs
- BCD to 7 Segments Display Decoder
- 7 Segments Display
- New Video Tutorials
- Components with any number of inputs and/or outputs
- Custom Components
- Built In Flip-Flops can now be Positive or Negative Edge Triggered and have Set and Reset Inputs
- BCD to 7 Segments Display Decoder
- 7 Segments Display
- New Video Tutorials
Show More
Version History
3.1
Nov 7, 2023
- Completely redesigned
- Components with any number of inputs and/or outputs
- Custom Components
- Built In Flip-Flops can now be Positive or Negative Edge Triggered and have Set and Reset Inputs
- BCD to 7 Segments Display Decoder
- 7 Segments Display
- New Video Tutorials
- Components with any number of inputs and/or outputs
- Custom Components
- Built In Flip-Flops can now be Positive or Negative Edge Triggered and have Set and Reset Inputs
- BCD to 7 Segments Display Decoder
- 7 Segments Display
- New Video Tutorials
2.1
Feb 21, 2023
Support for Dark Mode
Performance improvements
Performance improvements
2.0
Oct 25, 2019
Compatible with iOS 13
New graph feature to see the signals over time
Bug Fixing
New graph feature to see the signals over time
Bug Fixing
1.7
Sep 20, 2016
New interface
Updated to iOS10
Updated to iOS10
1.6
Sep 9, 2014
- Minor bugs fixed
- iOS 7 optimization
- Ready for next iOS version
- iOS 7 optimization
- Ready for next iOS version
1.5
Sep 14, 2013
￭ iOS7 compatibility issues fixed
￭ Minor bugs fixed
￭ Minor bugs fixed
1.4
Nov 30, 2012
▶ Copy and Paste of components (see new video tutorial)
▶ Components can now be repositioned (see new video tutorial)
▶ Components selection improved
▶ Fixed some bugs which caused to app crash
▶ Support for iPhone5
▶ Components can now be repositioned (see new video tutorial)
▶ Components selection improved
▶ Fixed some bugs which caused to app crash
▶ Support for iPhone5
1.3
Feb 18, 2012
▶ New components:
▶ Flip-Flop R-S, J-K, D, T
▶ Clock
▶ Multiplexer (4 ingressi) and Demultiplexer (4 uscite)
▶ New examples circuit
▶ Wires may be drawn in more segments at the same time (select more than two points and the tap wire)
▶ Components may also be edited double tapping on them
▶ Memory optimization
▶ Flip-Flop R-S, J-K, D, T
▶ Clock
▶ Multiplexer (4 ingressi) and Demultiplexer (4 uscite)
▶ New examples circuit
▶ Wires may be drawn in more segments at the same time (select more than two points and the tap wire)
▶ Components may also be edited double tapping on them
▶ Memory optimization
1.2.1
Oct 7, 2010
★ Improved application stability
1.2
Sep 25, 2010
* Step by step simulation improved that now clearly shows gates already evaluated and those to be evaluated at the next step
* Circuit's names editable
* Step by Step tutorial aligned to the new feature
* Circuit's names editable
* Step by Step tutorial aligned to the new feature
1.1
Aug 11, 2010
* Circuit scrolling improved
* Double finger double tap to reset position and zoom level to the original values
* Wires color based on value carried on them. Red if 1, Black if 0.
* Step by step simulation. Gates to evaluate at next step highlighted in green
* Double finger double tap to reset position and zoom level to the original values
* Wires color based on value carried on them. Red if 1, Black if 0.
* Step by step simulation. Gates to evaluate at next step highlighted in green
1.0
Jul 23, 2010
DCircuit Lab FAQ
Click here to learn how to download DCircuit Lab in restricted country or region.
Check the following list to see the minimum requirements of DCircuit Lab.
iPhone
Requires iOS 17.0 or later.
iPad
Requires iPadOS 17.0 or later.
DCircuit Lab supports English, Italian
