Nvidia Corporation

Ramya Challa

Jesse S Wang

Lalit Gupta

Jason Golbus

Ka Yun Lee

Kirk Twardowski

Chad Parsons

Karan Gupta

Amy Chen

The disclosure provides improvements for transmitting data between different voltage domains of an IC, such as a chip. The disclosure introduces a data transfer circuit that uses a multi-voltage RAM, referred to herein as MVRAM, for transmitting data across the different voltage domains. The MVRAM has multiple memory cells with write ports and read ports on different clock and voltage domains. Accordingly, a write operation can occur completely on the write domain voltage and the read operation can occur completely on the read domain voltage. In one example, the data transfer circuit includes: (1) write logic operating at a first operating voltage, (2) read logic operating at second operating voltage, and (3) a MVRAM with write ports that operate under the first operating voltage and read ports that operate under the second operating voltage.

Multi-voltage RAM used to cross clock and voltage domains

Growing community of inventors

Santa Clara, CA, United States of America

Ramya Challa