Invention Grant
US08854858B2 Signal level conversion in nonvolatile bitcell array 有权
非易失性位单元阵列中的信号电平转换

Signal level conversion in nonvolatile bitcell array
Abstract:
A system on chip (SoC) includes one or more core logic blocks that are configured to operate on a lower supply voltage and a memory array configured to operate on a higher supply voltage. Each bitcell in the memory has two ferroelectric capacitors connected in series between a first plate line and a second plate line to form a node Q. A data bit voltage is transferred to the node Q by activating a write driver to provide the data bit voltage responsive to the lower supply voltage. The data bit voltage is boosted on the node Q by activating a sense amp coupled to node Q of the selected bit cell, such that the sense amp senses the data bit voltage on the node Q and in response increases the data bit voltage on the node Q to the higher supply voltage.
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