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US 2026/0039299 A1Published application
Multiple or single voltage domain logic gate circuitry
AssigneeArm Limited
InventorsMohit Chanana, Andy Wangkun Chen, Yew Keong Chong, Vivek Asthana, Himanshu Rathore, Abhishek Kumar
Life of this patent
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Abstract
Briefly, example apparatuses, articles of manufacture, and/or techniques are disclosed that may be implemented, in whole or in part, to implement, facilitate and/or support integrated circuits comprising Boolean logic gate circuitry and corresponding voltage level shifting circuitry.
Claims20
A circuit, comprising:
- a first logic gate circuit to implement a first type of Boolean function and comprising a first input connected to an input signal line and a first output connected to an output signal line, wherein the input signal line is in a first voltage domain and the output signal line is in a second voltage domain;
- a second logic gate circuit to implement a second type of Boolean function and comprising a second input connected to the input signal line and a second output connected to a header control signal line, wherein the second type of Boolean function is a complementary type to the first type of Boolean function;
- a first header transistor to switchably couple an output voltage rail to the first logic gate circuit via a first header gate connected to the header control signal line, wherein the output voltage rail is in the second voltage domain;
- and
- a second header transistor to switchably couple the output voltage rail to the second logic gate circuit via a second header gate connected to the output signal line.
2 more elements
A method, comprising:
- receiving an input signal in a first voltage domain at a first logic gate circuit;
- operating the first logic gate circuit to perform a first type of Boolean function on the input signal to generate an output signal in a second voltage domain;
- receiving the input signal at a second logic gate circuit;
- operating the second logic gate circuit to perform a second type of Boolean function on the input signal to generate a header control signal, wherein the second type of Boolean function is a complementary type to the first type of Boolean function;
- receiving the output signal at a first header gate of a first header transistor to control power supplied to the second logic gate circuit;
- and
- receiving the header control signal at a second header gate of a second header transistor to control power supplied to the first logic gate circuit.
4 more elements
A non-transitory computer-readable medium storing computer-readable code for fabrication of an apparatus comprising:
- a first logic gate circuit to implement a first type of Boolean function and comprising a first input connected to an input signal line and a first output connected to an output signal line, wherein the input signal line is in a first voltage domain and the output signal line is in a second voltage domain;
- a second logic gate circuit to implement a second type of Boolean function and comprising a second input connected to the input signal line and a second output connected to a header control signal line, wherein the second type of Boolean function is a complementary type to the first type of Boolean function;
- a first header transistor to switchably couple an output voltage rail to the first logic gate circuit via a first header gate connected to the header control signal line, wherein the output voltage rail is in the second voltage domain;
- and
- a second header transistor to switchably couple the output voltage rail to the second logic gate circuit via a second header gate connected to the output signal line.
2 more elements
Dependencies are inferred from the claim text.