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公开(公告)号:US09634648B1
公开(公告)日:2017-04-25
申请号:US14098222
申请日:2013-12-05
Applicant: Xilinx, Inc.
Inventor: Shidong Zhou , Anil Kumar Kandala , Narendra Kumar Pulipati , Santosh Yachareni
IPC: H03K3/011
Abstract: A circuit includes a divider circuit block configured to generate a trim term signal (VBG_TRIM) that is temperature and process independent. The circuit further includes a processing circuit block configured to multiply a temperature dependent reference voltage signal (TAP_GG) by a factor, and to sum the trim term signal with a result of the multiplication to generate an output reference voltage (VGG).
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公开(公告)号:US12190994B2
公开(公告)日:2025-01-07
申请号:US18090574
申请日:2022-12-29
Applicant: XILINX, INC.
Inventor: Kumar Rahul , Santosh Yachareni , Mahendrakumar Gunasekaran , Mohammad Anees
Abstract: An integrated circuitry (IC) device for a memory device includes driver circuitry, selection circuitry, clock generation circuitry, and self-time path circuitry. The driver circuitry generates a plurality of driver circuitry outputs. The selection circuitry selects one of the plurality of driver circuitry outputs based on a plurality of enable signals. The clock generation circuitry receives the selected one of the plurality of driver circuitry outputs from the selection circuitry, and generates a clock signal based on at least the selected one of the plurality of driver circuitry outputs from the selection circuitry. The self-time path circuitry of a memory receives the clock signal and generates a reset signal based on the clock signal. The plurality of driver circuitry outputs and the clock signal are based on the reset signal, and the self-time path circuitry corresponds to one or more columns of a memory bank.
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公开(公告)号:US12045469B2
公开(公告)日:2024-07-23
申请号:US18082223
申请日:2022-12-15
Applicant: XILINX, INC.
Inventor: Kumar Rahul , John J. Wuu , Santosh Yachareni , Nui Chong , Cheang Whang Chang
CPC classification number: G06F3/0619 , G06F3/0629 , G06F3/0673
Abstract: A memory device is disclosed herein that leverages high ratio column MUXES to improve SEU resistance. The memory device may be utilized in an integrated circuit die and chip packages having the same. In one example, as semiconductor memory device is provided that includes first and second arrays of semiconductor memory cells, a plurality of sense amplifiers configured to read data states from the first and second arrays of memory cells, and a first plurality of high ratio MUXES connecting the first and second arrays of memory cells to the plurality of sense amplifiers.
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公开(公告)号:US11127718B2
公开(公告)日:2021-09-21
申请号:US16741319
申请日:2020-01-13
Applicant: XILINX, INC.
Inventor: Anil Kumar Kandala , Vijay Kumar Koganti , Santosh Yachareni
IPC: H01L21/00 , H01L25/065 , H01L23/48 , H01L23/528 , H01L23/00 , H01L25/00
Abstract: Examples described herein generally relate to multi-chip devices having stacked chips. In an example, a multi-chip device includes a chip stack that includes chips. One or more chips each includes a selection circuit and a broken via pillar that includes first and second continuous portions. The first continuous portion includes a through substrate via and a first metal line. The second continuous portion includes a second metal line. The first and second metal lines are disposed within dielectric layers disposed on a side of the semiconductor substrate of the respective chip. The first and second continuous portions are aligned in a direction normal to the side of the semiconductor substrate. An input node of the selection circuit is connected to one of the first or second metal line. An output node of the selection circuit is connected to the other of the first or second metal line.
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公开(公告)号:US11043263B1
公开(公告)日:2021-06-22
申请号:US16683846
申请日:2019-11-14
Applicant: Xilinx, Inc.
Inventor: Sree R K C Saraswatula , Abhimanyu Kumar , Santosh Yachareni , Shidong Zhou
IPC: G11C7/00 , G11C11/419 , G11C7/10 , G11C11/412
Abstract: A device includes an amplifier, a plurality of selector circuitries, and a plurality of fabric dies. The amplifier is configured to output a supply power signal. Each selector circuitry of the plurality of selector circuitries receives the supply power signal from the amplifier. Each fabric die of the plurality of fabric dies has a corresponding selector circuitry of the plurality of selector circuitries. Each selector circuitry corresponding to a die of the plurality of dies is configured to provide the supply power signal received from the amplifier to its corresponding die responsive to a selection signal being asserted. Selector circuitries of the plurality of selector circuitries corresponding to unselected dies of the plurality of dies pull address supply power for the unselected dies to an input other than the supply power signal of the selector circuitries corresponding to the unselected die.
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公开(公告)号:US11017822B1
公开(公告)日:2021-05-25
申请号:US16672089
申请日:2019-11-01
Applicant: XILINX, INC.
Inventor: Sree Rkc Saraswatula , Narendra Kumar Pulipati , Santosh Yachareni , Shidong Zhou , Sundeep Ram Gopal Agarwal , Brian Gaide
IPC: G11C5/14 , G11C29/50 , H01L25/065
Abstract: Examples described herein provide a method for disabling a defective portion of a fabric die of a stacked IC device. The method includes receiving a signal indicating that a portion of a fabric die of a stacked IC device including at least two fabric dies is defective. The method further includes, in response to the signal, pulling a source voltage rail of the defective portion to ground, thereby disabling the portion, and operating the remainder of the fabric die without interference from or contention with the disabled portion. In one example, the stacked IC device is an active on active (AoA) device, and the portion of the fabric die includes a configuration memory cell. In one example, the signal is received after power-up of the stacked IC device.
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17.
公开(公告)号:US09680474B1
公开(公告)日:2017-06-13
申请号:US15073389
申请日:2016-03-17
Applicant: Xilinx, Inc.
Inventor: Anil Kumar Kandala , Srinivasa L. Karumajji , Santosh Yachareni , Sandeep Vundavalli , Udaya Kumar Bobbili , Golla V S R K Prasad
IPC: H03K19/173 , H03K19/177
CPC classification number: H03K19/1737 , H03K19/1776 , H03K19/17764 , H03K19/17784
Abstract: An interconnect element includes: a selection circuit for receiving input signals and having a selection output; a half-latch circuit having an input coupled to the selection output, wherein the half latch circuit comprises a pull-up device; and a common bias circuit coupled to the pull-up device, wherein the common bias circuit is configured to supply a tunable bias voltage to the pull-up device.
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公开(公告)号:US12153457B2
公开(公告)日:2024-11-26
申请号:US18137387
申请日:2023-04-20
Applicant: XILINX, INC.
Inventor: Lakshmi Venkata Satya Lalitha Indumathi Janaswamy , Sree Rama Krishna Chaithnya Saraswatula , Santosh Yachareni , Anil Kumar Kandala , Narendra Kumar Pulipati , Shidong Zhou
Abstract: A cascaded thin-oxide N-Well voltage steering circuit includes a reference voltage generator that outputs a reference voltage within a range of first and second supply voltages, a first voltage steering circuit that outputs a higher available one of the reference voltage and the second supply voltage as an interim voltage, and a second voltage steering circuit that outputs a higher available one of the first voltage and the interim voltage at an output of the second voltage steering circuit. The interim voltage is applied to N-wells of PMOS transistors of the first voltage steering circuit. The output of the second voltage steering circuit is applied to N-wells of PMOS transistors of the second voltage steering circuit. The output of the second voltage steering circuit may also be applied to N-wells of PMOS transistors of other circuitry. The cascaded thin-oxide N-Well voltage steering circuit may consist substantially of thin-oxide PMOS transistors.
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公开(公告)号:US11423952B2
公开(公告)日:2022-08-23
申请号:US16715249
申请日:2019-12-16
Applicant: XILINX, INC.
Inventor: Narendra Kumar Pulipati , Sree RKC Saraswatula , Santosh Yachareni , Shidong Zhou
IPC: G11C5/14 , H01L25/18 , H03K19/003 , H03K19/0185 , H03K19/094
Abstract: Some examples described herein relate to multi-chip devices. In an example, a multi-chip device includes first and second chips. The first chip includes a power supply circuit and a logic circuit. The first and second chips are coupled together. The second chip is configured to receive power from the power supply circuit. The second chip includes a programmable circuit, a pull-up circuit, and a detector circuit. The detector circuit is configured to detect a presence of a power voltage on the second chip and responsively output a presence signal. The power voltage on the second chip is based on the power from the power supply circuit. The logic circuit is configured to generate a pull-up signal based on the presence signal. The pull-up circuit is configured to receive the pull-up signal and configured to pull up a voltage of a node of the programmable circuit responsive to the pull-up signal.
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公开(公告)号:US20210183412A1
公开(公告)日:2021-06-17
申请号:US16715249
申请日:2019-12-16
Applicant: XILINX, INC.
Inventor: Narendra Kumar Pulipati , Sree RKC Saraswatula , Santosh Yachareni , Shidong Zhou
IPC: G11C5/14 , H03K19/003 , H03K19/094 , H03K19/0185 , H01L25/18
Abstract: Some examples described herein relate to multi-chip devices. In an example, a multi-chip device includes first and second chips. The first chip includes a power supply circuit and a logic circuit. The first and second chips are coupled together. The second chip is configured to receive power from the power supply circuit. The second chip includes a programmable circuit, a pull-up circuit, and a detector circuit. The detector circuit is configured to detect a presence of a power voltage on the second chip and responsively output a presence signal. The power voltage on the second chip is based on the power from the power supply circuit. The logic circuit is configured to generate a pull-up signal based on the presence signal. The pull-up circuit is configured to receive the pull-up signal and configured to pull up a voltage of a node of the programmable circuit responsive to the pull-up signal.
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