Invention Grant
- Patent Title: Feedback for multi-level signaling in a memory device
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Application No.: US16220755Application Date: 2018-12-14
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Publication No.: US10825493B2Publication Date: 2020-11-03
- Inventor: M Ataul Karim
- Applicant: Micron Technology, Inc.
- Applicant Address: US ID Boise
- Assignee: Micron Technology, Inc.
- Current Assignee: Micron Technology, Inc.
- Current Assignee Address: US ID Boise
- Agency: Holland & Hart LLP
- Main IPC: G11C7/10
- IPC: G11C7/10 ; G11C7/22 ; G11C11/4099 ; G11C7/04 ; G11C11/4076

Abstract:
Methods, systems, and devices for feedback for multi-level signaling in a memory device are described. The memory device may use pulse amplitude modulation (PAM) signaling (e.g., PAM4) that is synchronized with a clock signal using a double data rate (DDR) to communicate information with a host device. The memory device may include a first circuit for determining voltage levels of sampling events associated with a rising edge of the clock signal and a second circuit for determining voltage levels of sampling events associated with a falling edge of the clock signal. A feedback circuit may receive a feedback signal associated with the first circuit and modify the signal input into the second circuit. The feedback circuit may include a latch circuit configured to receive portions of the signal and receive a first control signal and a second control signal to tune portions of the signal.
Information query