The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 04, 1991
Filed:
Nov. 09, 1989
Bhupendra Ahuja, Phoenix, AZ (US);
Donald Sollars, Tempe, AZ (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
A design for a high performance CMOS output buffers utilizing a process, supply and temperature conpensated current source to achieve very tight distribution of rise/fall times and propagation delays. The output buffer has been optimized to limit switching noise by using current controlled predrivers. An output buffer according to the present invention can switch up to a 100 pf load to TTL levels with rise times of no more than 4.0 ns and propagation delays ranging from 2.1 ns to 11.6 ns over the entire range of process, supply, temperature, and load for a typical one micron CMOS process; Vcc from 4.5 to 5,5V, temperature from -10 to 120.degree. C., and loads from 10 to 100 pf.