Sourcing internal signals to output pins of an integrated circuit through sequential multiplexing
US7500162B2 · kind B2 · utility
15Cited by
11References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 2, 2005 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | Jul 25, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/318385
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An integrated circuit with a multiplexer system and a control circuit is described. The multiplexer system has an output terminal connected to an output pin of the integrated circuit and input terminals connected to internal nodes of the integrated circuit. In a normal mode the control circuit generates the control signals so that any one of the internal nodes is connected to the output pin so that the integrated circuit can function flexibly. In a test mode so that a different internal node is connected to the output pin in each cycle of a test clock signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.