Controlling input/output pad discharge rate in storage devices
AssigneeSanDisk Technologies LLC
InventorsAshish Savadi, Tejaswini Keragodu
Life of this patent
Estimating the term…
Abstract
A transmitter controls the fall time on an open-drain link including multiple components. The transmitter includes an input driver to receive data and transmit the data on the open-drain link, thereby activating the open-drain link. The transmitter also includes a feedback mechanism to keep track of a pad when the open-drain link is activated and to determine when the pad reaches a predetermined amount of a supply voltage. When the pad reaches the predetermined amount of a supply voltage, the feedback mechanism triggers an appropriate main pull-down driver to control the fall time.
Claims13
A transmitter controls a fall time on an open-drain link including multiple components, the transmitter comprises:
- an input driver to receive data and transmit the data on the open-drain link, thereby activating the open-drain link;
- and
- a feedback mechanism to keep track of a pad when the open-drain link is activated and when the pad reaches a predetermined amount of a supply voltage, the feedback mechanism triggers an appropriate main pull-down driver to control the fall time, wherein the feedback mechanism is a Schmitt trigger circuitry.
A method in a transmitter for controlling a fall time on an open-drain link including multiple components, the method comprises:
- transmitting, by an input driver, data on the open-drain link through an input driver;
- activating, by the an input driver, the open-drain link;
- tracking, by a feedback mechanism, voltage of a pad on the activated open-drain line;
- and
- triggering, by the feedback mechanism, an appropriate main pull-down driver to control the fall time when the pad reaches a predetermined amount of a supply voltage, wherein the feedback mechanism is a Schmitt trigger circuitry.
A transmitter for controlling a fall time on an open-drain link including multiple components, the transmitter comprising:
- an input driver to receive data and transmit the data on the open-drain link, thereby activating the open-drain link;
- a feedback mechanism to keep track of a pad when the open-drain link is activated and determine when the pad reaches a predetermined amount of a supply voltage;
- a pre-driver to receive a trigger from the feedback mechanism;
- and
- a main pull-down driver to receive the trigger from the pre-driver to trigger an appropriate leg of the main pull-down driver and control the fall time, wherein the feedback mechanism is a Schmitt trigger circuitry.
Dependencies are inferred from the claim text.