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:
Apr. 27, 1999
Filed:
Jan. 22, 1998
John M Callahan, San Ramon, CA (US);
Enable Semiconductor, Inc., Milpitas, CA (US);
Abstract
A resettable latch circuit provides a modified address transition detection (XATD) signal in response to receiving an address-change input pulse signal at a SET input terminal thereof. A RESET input terminal for the latch circuit receives a delayed reset signal from a resettable delay circuit which has its input terminal coupled to the output terminal of the resettable latch circuit to receive the XATD signal. The resettable delay circuit includes a reset control signal terminal to which is coupled an inverted address-change input pulse. One embodiment of the resettable delay circuit includes a series of inverters and MOSFET load resistors as well as shunt MOSFET transistors turned on by the address-change signal to shunt the output terminals of the inverters and reset the delay line. The SET input terminal of the latch circuit also receives a chip-select-change signal pulse which is similar to the address-change pulse.