Integrated circuit and method
AssigneeTaiwan Semiconductor Manufacturing Company, Ltd.
InventorMei-Chen Chuang
Life of this patent
Estimating the term…
Abstract
An interface circuit includes an integrator circuit and a buffer circuit. The integrator circuit is configured to be electrically coupled to a column of memory cells, receive a signal corresponding to a sum of currents flowing through the memory cells of the column, and integrate the signal over time to generate an intermediate voltage. The buffer circuit is electrically coupled to an output of the integrator circuit to receive the intermediate voltage, and is configured to be electrically coupled to a row of further memory cells, generate an analog voltage corresponding to the intermediate voltage, and output the analog voltage to the further memory cells of the row.
Claims20
An interface circuit, comprising:
- an integrator circuit configured to
- be electrically coupled to a column of memory cells,
- receive a signal corresponding to a sum of currents flowing through the memory cells of the column, and
- integrate the signal over time to generate an intermediate voltage;
- and
- a buffer circuit electrically coupled to an output of the integrator circuit to receive the intermediate voltage, and configured to
- be electrically coupled to a row of further memory cells,
- generate an analog voltage corresponding to the intermediate voltage, and
- output the analog voltage to the further memory cells of the row.
An interface circuit, comprising:
- an integrator circuit configured to receive a signal, and integrate the signal over time to generate an intermediate voltage;
- a comparator circuit having a first input electrically coupled to an output of the integrator circuit to receive the intermediate voltage;
- a driving circuit electrically coupled to an output of the comparator circuit;
- and
- a feedback circuit electrically coupling an output of the driving circuit to a second input of the comparator circuit,
- wherein
- the driving circuit is configured to generate an analog voltage under control of the comparator circuit,
- the feedback circuit is configured to apply a feedback voltage corresponding to the analog voltage to the second input of the comparator circuit, and
- the comparator circuit is configured to
- perform a comparison between the intermediate voltage and the feedback voltage, and
- control the driving circuit to generate the analog voltage in accordance with a result of the comparison.
A method, comprising:
- applying one or more first voltages to corresponding one or more first input conductive lines, wherein a first output conductive line is electrically coupled to the one or more first input conductive lines through corresponding one or more programmable resistors of a first resistor array;
- generating a second voltage which corresponds to a sum of one or more currents caused by the one or more first voltages to flow through the corresponding one or more programmable resistors to the first output conductive line;
- and
- applying an analog voltage corresponding to the second voltage to a second input conductive line of a second resistor array.
Dependencies are inferred from the claim text.