IEEE 61523-3-2004

IEEE 61523-3-2004 is a technical standard for delay and power calculation in the electronic design process, focused on the Standard Delay Format (SDF). It supports computing and processing workflows where timing information must be represented and exchanged consistently. By defining a common format for delay data, IEEE 61523-3-2004 helps engineers compare results, review design behavior, and manage timing-related information with greater confidence across design tools and verification steps.

Overview of IEEE 61523-3-2004

This standard addresses the use of SDF within delay and power calculation activities for electronic design. As part of the IEEE 61523 family, it provides a structured approach for capturing timing information that can be used in simulation and analysis. IEEE 61523-3-2004 is especially relevant where design teams need a common way to describe delays and related power data, reducing interpretation differences between tools and helping preserve consistency through the design flow.

Typical use cases

IEEE 61523-3-2004 is commonly used in electronic design verification, timing analysis, and simulation environments that rely on Standard Delay Format data. It can support workflows involving logic design review, model exchange, and comparison of delay calculations across tools. In computing and processing applications, the standard is useful when teams need to document or apply timing information for integrated circuits, digital systems, and related engineering tasks where precise delay representation matters.

Why it matters

Using IEEE 61523-3-2004 can improve consistency in how delay and power information is recorded and interpreted during design development. That matters for compliance, testing, and performance checks, where small timing differences may affect results. The standard also helps reduce risk in procurement and engineering review by giving teams a clearer basis for exchanging SDF data. Because this edition is marked superseded, it is important to confirm whether it still matches the version required for your process.

• Standard Delay Format for electronic design
• Delay and power calculation context
• Timing data exchange for verification
• Computing and processing applications
• Superseded IEEE edition