Patents by Inventor Premkumar SEETHARAMAN

Premkumar SEETHARAMAN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9734896
    Abstract: In described examples, a memory controller circuit controls accesses to an SRAM circuit. Precharge mode control circuitry outputs: a burst mode enable signal to the SRAM circuit indicating that a series of SRAM cells along a selected row of SRAM cells will be accessed; a precharge first mode signal to the SRAM circuit indicating that a first access along the selected row will occur; and a precharge last mode signal to the SRAM circuit indicating that a last access along the selected row will occur. The SRAM circuit includes an array of SRAM cells arranged in rows and columns to store data. Each SRAM cell is coupled to: a corresponding word line along a row of SRAM cells; and a corresponding pair of complementary bit lines.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: August 15, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Per Torstein Roine, Vinod Menezes, Mahesh Mehendale, Vamsi Gullapalli, Premkumar Seetharaman
  • Patent number: 9613685
    Abstract: A static random access memory (SRAM) includes an array of storage cells arranged as rows and columns and a read controller to manage reading from the storage cells. The array of storage cells includes word lines that correspond to the rows and bit lines that correspond to the columns. The read controller is configured to receive a precharge signal and a word line signal and identify consecutive reads from storage cells accessed via a same one of the word lines. The read controller is further configured to, based on the precharge signal and the word line pulse signal indicating that the SRAM is to operate in a partial burst mode, precharge the bit lines no more than once during the consecutive reads and charge the same one of the word lines after each read of the consecutive reads.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: April 4, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Premkumar Seetharaman, Vinod Menezes
  • Patent number: 9496024
    Abstract: A system on a chip (SOC) includes a processor and a memory system coupled to the processor. The memory system includes a static random access memory (SRAM) bank and a memory controller. The SRAM bank includes a first switch coupled to a SRAM array power supply and a source of a transistor of an SRAM storage cell in an SRAM array. The SRAM bank also includes a second switch coupled to a NWELL power supply and a bulk of the transistor of the SRAM storage cell. The second switch is configured to close prior to the first switch closing during power up of the SRAM array.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: November 15, 2016
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Srinivasa Raghavan Sridhara, Sanjeev Kumar Suman, Premkumar Seetharaman, Keshav Bhaktavatson Chintamani, Atul Ramakant Lele, Raviprakash S. Rao, Parvinder Kumar Rana, Ajith Subramonia, Vipul K. Singhal, Malav Shrikant Shah, Bharath Kumar Poluri
  • Publication number: 20160314832
    Abstract: In described examples, a memory controller circuit controls accesses to an SRAM circuit. Precharge mode control circuitry outputs: a burst mode enable signal to the SRAM circuit indicating that a series of SRAM cells along a selected row of SRAM cells will be accessed; a precharge first mode signal to the SRAM circuit indicating that a first access along the selected row will occur; and a precharge last mode signal to the SRAM circuit indicating that a last access along the selected row will occur. The SRAM circuit includes an array of SRAM cells arranged in rows and columns to store data. Each SRAM cell is coupled to: a corresponding word line along a row of SRAM cells; and a corresponding pair of complementary bit lines.
    Type: Application
    Filed: June 30, 2016
    Publication date: October 27, 2016
    Inventors: Per Torstein Roine, Vinod Menezes, Mahesh Mehendale, Vamsi Gullapalli, Premkumar Seetharaman
  • Patent number: 9384826
    Abstract: In aspects of the present application, circuitry for storing data is provided including a static random access memory (SRAM) circuit operable to store data in an array of SRAM cell circuits arranged in rows and columns, each SRAM cell coupled to a pair of complementary bit lines disposed along the columns of SRAM cells circuits, and one or more precharge circuits in the SRAM memory circuit coupled to one or more pairs of the complementary bit lines and operable to charge the pairs of complementary bit lines to a precharge voltage, responsive to a precharge control signal. The precharge control signal within the SRAM circuit is operable to cause coupling transistors within the SRAM circuit to couple a pair of complementary bit lines to the precharge voltage responsive to mode signals output from a memory controller circuit external to the SRAM circuit, indicating a bitline precharge is to be performed.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: July 5, 2016
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Per Torstein Roine, Vinod Menezes, Mahesh Mehendale, Vamsi Gullapalli, Premkumar Seetharaman
  • Publication number: 20160163379
    Abstract: In aspects of the present application, circuitry for storing data is provided including a static random access memory (SRAM) circuit operable to store data in an array of SRAM cell circuits arranged in rows and columns, each SRAM cell coupled to a pair of complementary bit lines disposed along the columns of SRAM cells circuits, and one or more precharge circuits in the SRAM memory circuit coupled to one or more pairs of the complementary bit lines and operable to charge the pairs of complementary bit lines to a precharge voltage, responsive to a precharge control signal. The precharge control signal within the SRAM circuit is operable to cause coupling transistors within the SRAM circuit to couple a pair of complementary bit lines to the precharge voltage responsive to mode signals output from a memory controller circuit external to the SRAM circuit, indicating a bitline precharge is to be performed.
    Type: Application
    Filed: December 5, 2014
    Publication date: June 9, 2016
    Inventors: Per Torstein Roine, Vinod Menezes, Mahesh Mehendale, Vamsi Gullapalli, Premkumar Seetharaman
  • Publication number: 20160064070
    Abstract: A static random access memory (SRAM) that includes an array of storage cells arranged as rows and columns and a read controller to manage reading from the storage cells. The array of storage cells includes word lines that correspond to the rows and bit lines that correspond to the columns. The read controller is configured to identify consecutive reads from storage cells accessed via a same one of the word lines and precharge the bit lines no more than once during the consecutive reads.
    Type: Application
    Filed: September 2, 2015
    Publication date: March 3, 2016
    Inventors: Vinod MENEZES, Premkumar SEETHARAMAN
  • Publication number: 20160064069
    Abstract: In some embodiments, an SRAM includes an array of storage cells arranged as rows and columns, each storage cell of the array of storage cells includes a first type of transistor and a second type of transistor. The SRAM also includes a memory controller configured to detect a temperature of the SRAM and apply a body bias to the first type of transistor in each of the storage cells and refrain from an application of a body bias to the second type of transistor in each of the storage cells.
    Type: Application
    Filed: September 2, 2015
    Publication date: March 3, 2016
    Inventors: Vinod MENEZES, Premkumar SEETHARAMAN