TS 3326

TS 3326 addresses the graphical symbols used for binary logic elements, together with the definitions and drawing rules that support them. In electronic diagrams, these symbols provide a compact and consistent way to represent digital functions, making logic gates, functional blocks, and signal connections easier to read across different documents and drawing styles.

Why binary logic needs its own symbol language

Binary logic is the foundation of digital electronics and is built around two stable states, commonly understood as 0 and 1 in general technical usage. Functions such as AND, OR, and NOT are used to express decisions, conditions, and signal transformation within circuits. Standardized symbols reduce variation between manufacturers and drafting conventions, helping technical drawings, training material, and system documentation remain clear and comparable.

The scope of this standard is limited to the definitions, graphical symbols, and drawing requirements for binary logic elements. That means it is concerned with how these elements are represented, not with the design of a specific circuit or device. In practical electronics work, consistent notation is especially valuable when logic functions are combined with memory, control, or interface blocks in larger system diagrams.

• This listing covers graphical symbols for binary logic elements.
• Definitions and drawing rules are addressed together, so notation and presentation are part of the same system.
• It provides a common visual reference for digital electronic diagrams, circuit documents, and technical communication.
• The standard is linked to IEC 117-15-15A as an equivalent source and is withdrawn.