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:
May. 18, 2021
Filed:
Mar. 06, 2019
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Kai-Chi Huang, Hsinchu, TW;
Jerry Chang Jui Kao, Taipei, TW;
Chi-Lin Liu, New Taipei, TW;
Lee-Chung Lu, Taipei, TW;
Shang-Chih Hsieh, Yangmei, TW;
Wei-Hsiang Ma, Hsinchu, TW;
Yung-Chen Chien, Hsinchu, TW;
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD., Hsinchu, TW;
Abstract
A circuit includes a slave latch including a first input and an output, the first input being coupled to a master latch, and a retention latch including a second input coupled to the output. The master latch and the slave latch are configured to operate in a first power domain having a first power supply voltage level, the retention latch is configured to operate in a second power domain having a second power supply voltage level different from the first power supply voltage level, and the circuit further includes a level shifter configured to shift a signal level from one of the first power supply voltage level or the second power supply voltage level to the other of the first power supply voltage level or the second power supply voltage level.