Systems and techniques for timing mismatch reduction
AssigneeMicron Technology, Inc.
InventorYoshihito Morishita
Life of this patent
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Abstract
Systems and techniques to offset conditions affecting propagation delay of a clock signal in a memory device. These include a device that includes a clock adjustment circuit, comprising a differential amplifier, an inverter coupled to a first output of the differential amplifier, and a swing oscillator driver coupled to a second output of the inverter and an input of the differential amplifier. The swing oscillator driver includes a series of transistors, a signal path coupled to at least a first transistor of the series of transistors, wherein the signal path when in operation transmits a signal having a first voltage, and a strength control circuit coupled to the signal path, wherein the strength control circuit when in operation adjusts the first voltage of the signal to a second voltage.
Claims17
A device, comprising:
- a clock adjustment circuit comprising:
- a differential amplifier;
- an inverter coupled to a first output of the differential amplifier;
- and
- a swing oscillator driver coupled to a second output of the inverter and an input of the differential amplifier, wherein the swing oscillator driver comprises:
- a series of transistors;
- a signal path coupled to at least a first transistor of the series of transistors, wherein the signal path when in operation transmits a signal having a first voltage;
- and
- a strength control circuit coupled to the signal path, wherein the strength control circuit when in operation adjusts the first voltage of the signal to a second voltage.
A device, comprising:
- a testing circuit comprising replica clock adjustment circuitry configured to replicate propagation of a clock signal by clock adjustment circuitry of the device within a first amount of time, wherein the replica clock adjustment circuitry comprises an oscillator, comprising:
- a differential amplifier;
- an inverter coupled to an output of the differential amplifier;
- and
- a swing oscillator driver coupled to a second output of the inverter and an input of the differential amplifier, wherein the swing oscillator driver comprises:
- a signal path that when in operation transmits a signal having a first voltage;
- and
- a strength control circuit coupled to the signal path, wherein the strength control circuit when in operation adjusts the first voltage of the signal to a second voltage.
Dependencies are inferred from the claim text.