Invention Grant
- Patent Title: Toggle mode frequency optimization by dynamic ODT matching for non-volatile memory
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Application No.: US17349965Application Date: 2021-06-17
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Publication No.: US11646085B2Publication Date: 2023-05-09
- Inventor: Evgeny Vigdorchik , Nimrod Hermesh
- Applicant: SANDISK TECHNOLOGIES LLC
- Applicant Address: US TX Addison
- Assignee: SANDISK TECHNOLOGIES LLC
- Current Assignee: SANDISK TECHNOLOGIES LLC
- Current Assignee Address: US TX Addison
- Agency: Morgan, Lewis & Bockius, LLP
- Main IPC: G11C5/06
- IPC: G11C5/06 ; G11C16/32 ; G11C16/26 ; G11C16/04

Abstract:
A data storage system includes a plurality of memory dies and interface circuitry, including a receiver configured to receive pulses of a read clock signal; an I/O contact pad coupled to the receiver via a signal path of an interface channel; and on-die-termination (ODT) circuitry coupled to the I/O contact pad and the receiver. The ODT circuitry includes a plurality of resistor pairs, each including a pull-up resistor selectively coupled to the signal path via a first switch, and a pull-down resistor selectively coupled to the signal path via a second switch; and ODT control circuitry configured to enable ODT at the interface circuitry by causing each of the switches to be closed during a first stage of the read operation, and disable ODT at the interface circuitry by causing each of the switches to be open during a final stage of the read operation.
Public/Granted literature
- US20220406387A1 Toggle Mode Frequency Optimization By Dynamic ODT Matching for Non-Volatile Memory Public/Granted day:2022-12-22
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