IEEE 61691-4-2004

IEEE 61691-4-2004 is a technical document focused on behavioural languages, specifically the Verilog hardware description language in the context of IEEE Std 1364(TM)-2001. It is relevant to engineers working with components, circuits, devices, and systems where digital design descriptions must be clear and consistent. As an inactive standard, it still matters for reference, comparison, and legacy design documentation in engineering workflows.

Overview of IEEE 61691-4-2004

This standard covers Part 4 of a behavioural languages series and addresses Verilog as a hardware description language. IEEE 61691-4-2004 is useful where design intent, simulation behavior, and implementation language need to be aligned in a structured way. Its technical context sits within electronic engineering and system design, supporting users who need a defined reference for describing digital hardware behavior. For teams maintaining older designs or checking compatibility, it offers a stable point of reference.

Typical use cases

IEEE 61691-4-2004 is typically used in digital hardware design, simulation preparation, and review of Verilog-based descriptions. It may support workflows for circuit modeling, device-level behavior specification, and verification tasks in engineering groups that rely on behavioural languages. In practice, it can be helpful when evaluating legacy HDL files, comparing design intent across revisions, or documenting technical requirements for components and systems that are described in Verilog.

Why it matters

Having a defined standard for Verilog helps reduce ambiguity in design communication and technical review. IEEE 61691-4-2004 can support consistency across engineering teams, especially when compliance checks, simulation results, or procurement documents depend on a shared language reference. For inactive standards, the value is often in legacy support, traceability, and risk reduction during maintenance or redesign work. Using the same specification can make technical comparisons more reliable and easier to audit.

• Verilog hardware description reference
• Behavioural language context
• Legacy design and simulation support
• Engineering documentation and review
• Inactive IEEE standard reference