Semiconductor integrated circuit and electronic system
US7185244B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2004 |
| Grant date | Feb 27, 2007 |
| Priority date | — |
| Expiry date | Jan 18, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2216/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention provides a semiconductor integrated circuit for communication control and a wireless communication system using the same realizing reduction in the size of a chip and the size of a module by enabling trimming data to be written into a nonvolatile memory without increasing the number of external terminals. A rewritable nonvolatile memory is provided in a semiconductor integrated circuit, characteristics of circuits including an electronic part are measured and trimming data for correcting variations in the characteristics is stored in the nonvolatile memory. A pin and an interface circuit such as a test pin and a JTAG interface circuit which are originally provided for the semiconductor integrated circuit also serve as an input pin and an interface circuit for sending and storing the trimming data to the nonvolatile memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.