Word line driver
First Claim
Patent Images
1. A word line driver circuit comprising:
- a first circuit configured to receive a first input signal and to generate a first output signal, the first input signal swinging between a high voltage value and a low voltage value of the first input signal, the first output signal swinging between a high voltage value and a low voltage value of the first output signal;
a second circuit coupled to the first circuit and configured to receive the first output signal at an input of the second circuit and to generate a second output signal at an output of the second circuit, the second output signal swinging between a high voltage value and a low voltage value of the second output signal, and the input and the output of the second circuit being configured to be free from having a positive feedback path; and
a third circuit coupled to the second circuit and configured to receive the second output signal and generate a third output signal, the third output signal swinging between a high voltage value and a low voltage value of the third output signal,whereinthe high voltage value of the first input signal and of the first output signal are equal, and are less than the high voltage value of the second output signal;
the low voltage value of the first input signal is higher than the low voltage value of the first output signal;
the high voltage values of the second output signal and of the third output signal are equal; and
the low voltage values of the first output signal, the second output signal, and the third output signal are equal.
1 Assignment
0 Petitions
Accused Products
Abstract
A first circuit is coupled to a second circuit, which is coupled to a third circuit. A high voltage value of a first input signal and of a first output signal of the first circuit are equal, and are less than a high voltage value of a second output signal of the second circuit. A low voltage value of the first input signal is higher than a low voltage value of the first output signal. A high voltage value of the second output signal and of a third output signal of the third circuit are equal. The low voltage value of the first output signal, the second output signal, and the third output signal are equal.
12 Citations
20 Claims
-
1. A word line driver circuit comprising:
-
a first circuit configured to receive a first input signal and to generate a first output signal, the first input signal swinging between a high voltage value and a low voltage value of the first input signal, the first output signal swinging between a high voltage value and a low voltage value of the first output signal; a second circuit coupled to the first circuit and configured to receive the first output signal at an input of the second circuit and to generate a second output signal at an output of the second circuit, the second output signal swinging between a high voltage value and a low voltage value of the second output signal, and the input and the output of the second circuit being configured to be free from having a positive feedback path; and a third circuit coupled to the second circuit and configured to receive the second output signal and generate a third output signal, the third output signal swinging between a high voltage value and a low voltage value of the third output signal, wherein the high voltage value of the first input signal and of the first output signal are equal, and are less than the high voltage value of the second output signal; the low voltage value of the first input signal is higher than the low voltage value of the first output signal; the high voltage values of the second output signal and of the third output signal are equal; and the low voltage values of the first output signal, the second output signal, and the third output signal are equal. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A word line driver circuit comprising:
-
a first inverter having a first input and a first output, the first input being configured to receive a control signal, and the first inverter being free from receiving another control signal; a second inverter having a second input and a second output, the second input coupled to the first output; and a third inverter having a third input and a third output, the third input coupled to the second output, wherein the third output is configured to provide a signal for a word line of a memory cell; the first inverter includes a P-side configured to receive a first P-side voltage value and having a first P-side driving capability; and an N-side configured to receive a first N-side voltage value and having a first N-side driving capability weaker than the first P-side driving capability; the second inverter includes a P-side configured to receive a second P-side voltage value and having a second P-side driving capability; and an N-side configured to receive a second N-side voltage value and having a second N-side driving capability stronger than the second P-side driving capability; and the third inverter includes a P-side configured to receive a third P-side voltage value; and an N-side configured to receive a third N-side voltage value. - View Dependent Claims (8, 9, 10, 11, 12)
-
-
13. A word line driver circuit comprising:
-
a first circuit; a second circuit coupled to the first circuit; and a third circuit coupled to the second circuit and having a PMOS transistor coupled in series with an NMOS transistor at an output node; wherein the first circuit is configured to convert a low logical value of a first input to a high logical value of a first output of the first circuit; the second circuit is configured to convert the high logical value of the first output to a low logical value of a second output of the second circuit, and the second input and the second output are configured to be free from having a positive feedback path; the low logical value of the second output equals a voltage value at a source of the NMOS transistor; and the output node is configured to provide a signal for a word line of a memory cell. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
-
Specification