Micron Technology, Inc.
Delay calibration oscillators for a memory device

Abstract:

Methods, systems, and devices for delay calibration oscillators for a memory device are described. In some examples, a memory device may include a delay chain operable (e.g., for a calibration operation) in a ring oscillator configuration that includes a pulse generator. The pulse generator may be configured to output a pulse signal responsive to a transition of an input signal. By generating a pulse signal in a feedback loop of a ring oscillator, the ring oscillator may support a cycle that does not rely on both a first transition propagation pass (e.g., a rising edge propagation) and a responsive, opposite transition propagation pass (e.g., a falling edge propagation) through the delay chain, which may support a ring oscillator cycle time (e.g., period) that more closely represents aspects of the delay chain that are meant to be calibrated.