Semiconductor integrated circuit device having improved input/output interface circuit
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 13, 1990
Grant Date -
N/A
app pub date -
Apr 6, 1989
filing date -
Apr 8, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A semiconductor integrated circuit device includes an external terminal, an internal logic circuit, and an input/output interface circuit. The input/output interface circuit includes an input circuit, a selection circuit and an output circuit. The input circuit receives an input signal and supplies the internal logic circuit with the same. The selection circuit selects either the input signal supplied from the input circuit or an output signal supplied from the internal logic circuit. The output circuit outputs the selected one of the input signal and output signal to the external terminal. A loop circuit is formed by the input circuit, selection circuit and output circuit. The loop circuit logically includes an odd number of inverters.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully