Patent ID: 11888477
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An apparatus comprising:
pull-down circuitry having an output and a first input, a second input and a third input, the pull-down circuitry including:
a resistor with a first resistor terminal and a second resistor terminal, the first resistor terminal coupled to the output;
a capacitor with a first capacitor terminal and a second capacitor terminal, the first capacitor terminal coupled to the output and the second capacitor terminal coupled to ground;
a first transistor having a first current terminal, a second current terminal and a control terminal, wherein the first current terminal of the first transistor is coupled to the second resistor terminal, the second current terminal of the first transistor is coupled to ground and the control terminal of the first transistor is coupled to the first input;
a second transistor having a first current terminal, a second current terminal and a control terminal, wherein the first current terminal of the second transistor is coupled to the second resistor terminal and the control terminal of the second transistor is coupled to the second input; and
a third transistor having a first current terminal, a second current terminal and a control terminal wherein the first current terminal of the third transistor is coupled to the second current terminal of the second transistor, the second current terminal of the third transistor is coupled to ground and the control terminal of the third transistor is coupled to the third input.