Example 1: quick document cross-check
Open the page next to a drawing, datasheet or marking when you need to confirm what a specific symbol, contact, protection code or table entry means before reading the full source document.
SpecCalc Hub
HDMI Pinout Reference
HDMI connector signal group reference.
Reference data
HDMI Type-A (19)
Connected signal cable mating face, as Dell A00: odd contacts 19 to 1 left-to-right above; even contacts 18 to 2 below. Pin 14 is reserved/NC on this monitor, not universally NC for every HDMI revision.
Enlarged diagram
Selected contact: —
| Contact | Signal | Function |
|---|---|---|
| TMDS Data2+ | Data signal | |
| TMDS Data2 shield | Return / ground | |
| TMDS Data2− | Data signal | |
| TMDS Data1+ | Data signal | |
| TMDS Data1 shield | Return / ground | |
| TMDS Data1− | Data signal | |
| TMDS Data0+ | Data signal | |
| TMDS Data0 shield | Return / ground | |
| TMDS Data0− | Data signal | |
| TMDS Clock+ | Data signal | |
| TMDS Clock shield | Return / ground | |
| TMDS Clock− | Data signal | |
| CEC | Control / sideband | |
| 14* | Control / sideband | |
| SCL | Control / sideband | |
| SDA | Control / sideband | |
| GND | Return / ground | |
| +5 V | Power | |
| HPD | Control / sideband |
Contact references below do not establish viewing orientation. The mating face and wire side are mirror images. Match the exact plug/receptacle drawing before wiring; the diagram only groups functions.
What this page helps with
Identify video transport, display-data, control and hot-plug groups without mistaking them for interchangeable wires.
HDMI Pinout Reference is a public SpecCalc Hub reference page for pinouts, component markings and low-power electronics context. HDMI connector signal group reference.
The page is meant for transparent early-stage comparison: you can see the working inputs, the result context and the limitations without relying on a black-box answer.
Formula or method
The page is structured as a practical reference: start with the visible table, diagram and labels, then compare them with the exact connector, device, enclosure or symbol set in front of you.
Use the listed sources to confirm revision, naming and application context. Similar labels can hide different electrical limits, pin functions or test conditions, so the page should be treated as a guided reference rather than a universal standard text.
How to use
- Identify the exact symbol, connector, protection code or table entry you want to verify.
- Match the visible diagram and table with the label on the product, datasheet or drawing instead of assuming a familiar shape means the same thing.
- Check the current manufacturer document and local rules if the reference affects procurement, wiring or installation work.
Practical examples
Example 2: procurement or connection check
A familiar label can still hide a different revision or function. Use the page as a fast filter, then verify the exact document revision before you buy, connect or specify the real part.
Common mistakes
- Using the page without checking units, document revision or the real operating context.
- Treating a preliminary result or reference table as a final engineering decision.
- Ignoring the source links, limitations and related tools needed for the next validation step.
Limitations
- The displayed TMDS-oriented groups are a selected reference, not a complete map of every HDMI operating mode. A connector pinout does not certify a cable’s bandwidth.
- The page does not replace official manufacturer documentation, local rules or site measurements.
- Before practical use, confirm that the method matches the real equipment revision and operating conditions.
FAQ
What does the HDMI Pinout Reference page help with first?
It gives a transparent first pass for hdmi connector signal group reference. and shows which inputs, assumptions or references should be checked before you move into a real decision.
Can I treat the result as a final decision?
No. Even a low-risk reference or calculation still needs to be checked against documentation, page limitations and the actual operating context.
What should I verify next?
Check the cited sources (HDMI — specification overview and Texas Instruments TMDS351 — TMDS, DDC and HPD functional example), the related tools and the real equipment or site data that will govern the final decision.
Related tools
Explanation updated: 2026-09-15
This calculator provides an estimate for informational purposes only. It is not a certified engineering design, electrical safety approval, or professional installation recommendation. Always verify final decisions with a qualified professional and applicable local codes.