Very small swing high performance asynchronous CMOS static memory (multi-port register file) with power reducing column multiplexing scheme

A multi-port register file memory, the memory comprising:

• at least one storage element;
• at least one read port coupled to said storage element;
• and
• a differential sensing device coupled to at least said read port and adapted to sense a predefined voltage swing, wherein said differential sensing device is a two-stage analog-style sense amplifier including a voltage reference device.

A multi-port register file memory adapted to be used in applications where a power supply of less than about 1.08 volts occurs, the memory comprising:

• at least one memory cell;
• a differential sensing circuit adapted to sense a small voltage swing;
• a voltage reference device coupled to said differential sensing circuit;
• and
• a latched output coupled to differential sensing device.

A multi-port register file memory adapted to be used in applications where a power supply of less than about 1.08 volts occurs, the memory comprising:

• a plurality of storage elements arranged in a plurality of rows and columns;
• at least one read port and one write port coupled to each of said storage elements;
• a differential sensing device adapted to sense a small voltage swing;
• a voltage reference device coupled to said differential sensing device;
• and
• a latched output circuit coupled to differential sensing device.

A multi-port register file memory, the memory comprising:

• a plurality of storage elements arranged in rows and columns;
• means for selecting one of said storage elements;
• and
• means for differentially sensing a small bitline voltage swing using a two-stage analog-style sense amplifier including at least one trip-level-shifted inverter device.

A multi-port register file memory, the memory comprising:

• at least one storage element;
• at least one read port coupled to said storage element;
• and
• a differential sensing device coupled to at least said read port and adapted to sense a predefined voltage swing, wherein said differential sensing device is a two-stage analog-style sense amplifier including at least one trip-level-shifted inverter device.