Method of operating write assist circuitry

A method comprising:

• causing, by a first circuit, a transition at a first node from a first node high logic level to a first node low logic level, thereby generating a transition of a word line signal from a word line low logic level to a word line high logic level;
• causing, by a second circuit, a transition at a second node from a second node high logic level to a second node low logic level, thereby generating a transition of a tracking word line signal from a tracking word line low logic level to a tracking word line high logic level;
• generating a further transition of the word line signal from the word line high logic level to the word line low logic level, thereby generating a word line pulse width;
• and
• generating a further transition of the tracking word line signal from the tracking word line high logic level to the tracking word line low logic level, thereby generating a tracking word line pulse width,
• wherein
• the second circuit is configured to have pull-up driving capability greater than that of the first circuit;
• the transition of the tracking word line signal from the tracking word line low logic level to the tracking word line high logic level is later than the transition of the word line signal from the word line low logic level to the word line high logic level by a delay time;
• and
• the word line pulse width is larger than the tracking word line pulse width.

A method comprising:

• causing, by a first circuit, a first signal transition at a first node based on a clock signal;
• generating a first edge, from a first level to a second level, of a word line signal responsive to the first signal transition;
• causing, by a second circuit, a second signal transition at a second node based on the clock signal, the second circuit and the first circuit being configured to cause the second signal transition to occur later than the first signal transition by a delay time;
• and
• generating a first edge, from a third logic level to a fourth level, of a tracking word line signal responsive to the second signal transition.