Free Timing Diagram Generator — Track Signals

See it work

Timing diagram examples.

Same tool, four requests. Every drawing below is a real render.

What you type

Draw an SPI transaction with eight clock cycles, active-low chip select, MOSI bytes 0xAB through 0x05, and MISO changing from high impedance to response bytes 0xFF, 0x12, 0x34 and 0x56.

Then tryAdd a second SPI transaction after chip select returns high.Change MOSI to a single 0x9F command.

Timing / waveform diagram: SPI transaction

Timing / waveform diagram · WaveDrom-compatible signal description · schematex-timing

Rather start from a finished drawing? Browse 7 timing diagram templates →

The drawing

What a timing diagram is.

A timing diagram shows how one or more signals change over time. Shared horizontal intervals make it possible to compare clock edges, data values, resets and control signals at a glance.

Engineers use the drawing to explain a protocol or a hardware requirement before they inspect a waveform capture or write a test. Labels on bus intervals keep the transaction readable.

Standard: WaveDrom-compatible signal description
Engine: schematex-timing
Editable: Double-click text, drag nodes
Export: SVG · PNG · PDF

Timing / waveform diagram: What a timing diagram is

Who uses it

Who uses timing diagrams.

Embedded developers

Serial-bus transactions that make command bytes, acknowledgements and data responses clear.

Digital designers

Clock, reset, data and registered-output relationships for a component specification.

Firmware test teams

UART receive frames with bit sampling and status signals for a repeatable test case.

How it works

How to make a timing diagram in three steps.

Describe it

One paragraph is enough to start.

“Draw an SPI transaction with eight clock cycles, active-low chip select, MOSI bytes 0xAB through 0x05, and MISO changing from high impedance to response bytes 0xFF, 0x12, 0x34 and 0x56.”