FAST, ENERGY EFFICIENT 6T SRAM ARRAYS USING HARVESTED DATA

A transistor memory device includes transistor storage elements storing a capacitance at each transistor storage element. Each transistor storage element includes a word line port that selects a bitcell and a bitline. Each transistor storage element performs a read data access from or a write data a...

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1. Verfasser: BHAVNAGARWALA, Azeez
Format: Patent
Sprache:eng
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Zusammenfassung:A transistor memory device includes transistor storage elements storing a capacitance at each transistor storage element. Each transistor storage element includes a word line port that selects a bitcell and a bitline. Each transistor storage element performs a read data access from or a write data access to each remaining transistor storage element to increase a SNM. The device includes a harvest node configured to store a harvested charge transferred from the bitline. The transistor memory device includes a capacitor divider between the bitline and the harvest node of a first transistor storage element and configured to maintain a voltage swing on the bitline. The device further includes a harvest circuit configured to, in response to the read data access performed by the first transistor storage element, decouple the harvest node from a ground and invert a voltage equal to a potential difference between the bitline and the harvest node.