公开(公告)号：US20230402834A1

公开(公告)日：2023-12-14

申请号：US17838282

申请日：2022-06-13

Applicant: NANYA TECHNOLOGY CORPORATION

Inventor： Chang-Ting Wu

IPC: H02H3/20 ,  H02H1/00

CPC classification number: H02H3/20 ,  H02H1/0007

Abstract: An electrical over stress protection device is provided. A detection circuit detects an input voltage from a pad, provides a first discharge path when the input voltage is higher than a preset voltage, and provides a turn-on voltage to a discharge protection circuit to control the discharge protection circuit to provide at least one second discharge path.

公开(公告)号：US20230238961A1

公开(公告)日：2023-07-27

申请号：US17585573

申请日：2022-01-27

Applicant: NANYA TECHNOLOGY CORPORATION

Inventor： Chang-Ting Wu

IPC: H03K19/017 ,  H03K19/00 ,  H03K19/0185

CPC classification number: H03K19/01721 ,  H03K19/0005 ,  H03K19/018585

Abstract: The off-chip driving (OCD) device includes a signal transition detector, a front-end driver, a first main driver, a second main driver, a first resistance provider and a second resistance provider. The signal transition detector is used to detect a transition status of an input signal to generate decision information. The front-end driver generates control signals according to the decision information, and generates driving signals according to the input signal. The first main driver and the second main driver generate an output signal to a pad according to the driving signals. The first resistance provider adjusts a first resistance between the first main driver and the pad according to a first control signal. The second resistance provider adjusts a second resistance between the second main driver and the pad according to a second control signal.

公开(公告)号：US11736099B1

公开(公告)日：2023-08-22

申请号：US17887495

申请日：2022-08-14

Applicant: NANYA TECHNOLOGY CORPORATION

Inventor： Chang-Ting Wu

IPC: H03K5/00 ,  H03K5/24 ,  H03K19/17784 ,  H03K5/1534 ,  H03K5/14 ,  H03K5/26

CPC classification number: H03K5/2472 ,  H03K5/14 ,  H03K5/1534 ,  H03K5/26 ,  H03K19/17784

Abstract: A clock detecting circuit is provided. The clock detecting circuit includes a first clock converting circuit, a second clock converting circuit and a frequency comparator. The first clock converting circuit converts an internal clock to a first clock. The second clock converting circuit converts an external clock to a second clock. The frequency comparator generates a first edge clock in response the first clock and generates a second edge clock in response the second clock. The frequency comparator generates a first sensing voltage in response to a plurality of positive pulses of the first edge clock and generate a second sensing voltage in response to a plurality of positive pulses of the second edge clock. The frequency comparator compares the first sensing voltage and the second sensing voltage to provide a frequency comparing result between the external clock and the internal clock.

公开(公告)号：US20230216500A1

公开(公告)日：2023-07-06

申请号：US17567891

申请日：2022-01-04

Applicant: NANYA TECHNOLOGY CORPORATION

Inventor： Chang-Ting Wu

IPC: H03K19/00 ,  H03K19/003 ,  H03K19/0185

CPC classification number: H03K19/0016 ,  H03K19/00315 ,  H03K19/018521 ,  H03K19/0013

Abstract: The interface circuit includes a first transistor, a second transistor, a first switch, a first logic circuit and a second logic circuit. The first transistor is controlled by a enable signal. The second transistor is controlled by a first control signal. The first switch is coupled between a second end of the first transistor and the output end of the interface circuit, wherein the first switch is controlled by a second control signal. The first logic circuit generates the first control signal according to the enable signal and at least one indication signal. The second logic circuit generates the second control signal according to the first control signal and the enable signal.

公开(公告)号：US10951206B1

公开(公告)日：2021-03-16

申请号：US16986246

申请日：2020-08-05

Applicant: NANYA TECHNOLOGY CORPORATION

Inventor： Chang-Ting Wu

IPC: H03K17/16 ,  G11C16/26

Abstract: An off chip driving system includes a decision circuit, multiple first and second adjustable-enhancement circuits, and multiple first and second drivers. The decision circuit outputs a first and a second decision signal according to a clock and an input data. Each first adjustable-enhancement circuit generates one of first control signals in response to the first and the second decision signal and one of first optional signals. Each second adjustable-enhancement circuit generates one of second control signals in response to the first and the second decision signal and one of second optional signals. Each first driver is coupled to the corresponding first adjustable-enhancement circuit and configured to be enabled in response to the corresponding first control signal. Each second driver is coupled to the corresponding second adjustable-enhancement circuit and configured to be enabled in response to the corresponding second control signal.

公开(公告)号：US20240242747A1

公开(公告)日：2024-07-18

申请号：US18154860

申请日：2023-01-16

Applicant: NANYA TECHNOLOGY CORPORATION

Inventor： Chang-Ting Wu

IPC: G11C7/10

CPC classification number: G11C7/1066 ,  G11C7/1093

Abstract: An off-chip driving device and a driving capability enhancement method thereof are provided. Detecting a rising edge and a falling edge of an input data signal. A first enhancement circuit is controlled to provide a first enhancement signal to an input/output pad according to the rising edge and the falling edge of the input data signal.

公开(公告)号：US11711080B1

公开(公告)日：2023-07-25

申请号：US17585573

申请日：2022-01-27

Applicant: NANYA TECHNOLOGY CORPORATION

Inventor： Chang-Ting Wu

IPC: H03K19/00 ,  H03K19/017 ,  H03K19/0185

CPC classification number: H03K19/01721 ,  H03K19/0005 ,  H03K19/018585

Abstract: The off-chip driving (OCD) device includes a signal transition detector, a front-end driver, a first main driver, a second main driver, a first resistance provider and a second resistance provider. The signal transition detector is used to detect a transition status of an input signal to generate decision information. The front-end driver generates control signals according to the decision information, and generates driving signals according to the input signal. The first main driver and the second main driver generate an output signal to a pad according to the driving signals. The first resistance provider adjusts a first resistance between the first main driver and the pad according to a first control signal. The second resistance provider adjusts a second resistance between the second main driver and the pad according to a second control signal.

公开(公告)号：US11626873B2

公开(公告)日：2023-04-11

申请号：US17327764

申请日：2021-05-24

Applicant: NANYA TECHNOLOGY CORPORATION

Inventor： Chang-Ting Wu

IPC: H03K19/00 ,  H03K19/017

Abstract: An off chip driver circuit includes a pull-up circuit and a pull-down circuit. The pull-up circuit includes several first transistors and a first resistance circuit coupled between the first transistors and a input/output pad. The first transistors generate a first voltage to the first resistance circuit. The first resistance circuit transmits, in response to a first control signal, the first voltage to the input/output pad and to have a variable resistance according to the first control signal. The pull-down circuit includes several second transistors and a second resistance circuit coupled between the second transistors and the input/output pad. The second transistors generate a second voltage to the second resistance circuit. The second resistance circuit transmits, in response to a second control signal, the second voltage to the input/output pad and to have a variable resistance according to the second control signal.

公开(公告)号：US11012074B1

公开(公告)日：2021-05-18

申请号：US16737880

申请日：2020-01-08

Applicant: NANYA TECHNOLOGY CORPORATION

Inventor： Chang-Ting Wu ,  Hao-Huan Hsu

IPC: H03K19/0185 ,  H03K17/687 ,  H03K19/20

Abstract: An off chip driving circuit includes a decision circuit, a first compensation circuit, a second compensation circuit, a pull-up circuit and a pull-down circuit. The decision circuit is configured to output a first decision signal and a second decision signal according to a clock and an input data. The first compensation circuit is coupled to the decision circuit and configured to generate a first control signal in response to the first decision signal and the second decision signal. The second compensation circuit is coupled to the decision circuit and configured to generate a second control signal in response to the first decision signal and the second decision signal. The pull-up circuit is configured to be enabled in response to the first control signal. The pull-down circuit is configured to be enabled in response to the second control signal.

公开(公告)号：US20250141449A1

公开(公告)日：2025-05-01

申请号：US18493817

申请日：2023-10-25

Applicant: NANYA TECHNOLOGY CORPORATION

Inventor： Chang-Ting Wu

IPC: H03K19/017

Abstract: An off-chip driver (OCD), a pull-up driver of the OCD and the pull-down driver of the OCD are provided. The pull-up driver includes a main current source circuit and a main base circuit. The main current source circuit is connected between a connecting pad and a high reference voltage. The main current source circuit provides a main current value in response to a main control signal. The matching resistance value is associated with the main current value. The main base circuit is connected to the main current source circuit in parallel, and determines a base value of the matching resistance value.