Abstract:
A sense amplifier is disclosed that includes an amplifier circuit configured to receive, at an input, an input signal including an input level, the amplifier circuit configured to provide an amplified output signal including a gain with respect to the input level; and a feedback circuit coupled to receive the amplified output signal from the amplifier circuit, the feedback circuit configured to provide, at the input of the amplifier circuit, an adjusted version of the amplified output signal including a modified output magnitude based on common mode feedback.
Abstract:
A mask-programmed read-only memory (MROM) has a plurality of column line pairs, each having a bit line and a complement bit line. The MROM includes a plurality of memory cells corresponding to a plurality of intersections between the column line pairs and a plurality of word liens. Each memory cell includes a high Vt transistor and a low Vt transistor.
Abstract:
A memory includes a redundant sense amplifier and a plurality of sense amplifier pairs. Each sense amplifier pair includes a first sense amplifier and a second sense amplifier. Each sense amplifier pair drives a common load line. The memory is configured to implement column redundancy using a single redundant sense amplifier without requiring local read lines for each sense amplifier.
Abstract:
A semiconductor apparatus is provided herein for reducing power when transmitting data between a first device and a second device in the semiconductor apparatus. Additional circuitry is added to the semiconductor apparatus to create a communication system that decreases a number of state changes for each signal line of a data bus between the first device and the second device for all communications. The additional circuitry includes a decoder coupled to receive and convert a value from the first device for transmission over the data bus to an encoder that provides a recovered (i.e., re-encoded) version of the value to the second device. One or more multiplexers may also be included in the additional circuitry to support any number of devices.
Abstract:
A memory is provided in which a scan chain covers the redundancy logic for column redundancy as well as the redundancy multiplexers in each column. The redundancy logic includes a plurality of redundancy logic circuits arranged in series. Each redundancy logic circuit corresponds to a respective column in the memory. Each column is configured to route a shift-in signal through its redundancy multiplexers during a scan mode of operation.
Abstract:
A memory is provided that includes a self-timed memory circuit that controls the isolation of a sense amplifier from a column selected by a column multiplexer until the completion of a bit line voltage difference development delay. The self-timed memory circuit also controls the release of a pre-charge for the sense amplifier responsive to the completion of the bit line voltage difference development delay.
Abstract:
Various aspects are described herein. In some aspects, the disclosure provides techniques for accessing tag information in a memory line. The techniques include determining an operation to perform on at least one memory line of a memory. The techniques further include performing the operation by accessing only a portion of the at least one memory line, wherein the only the portion of the at least one memory line comprises one or more flag bits that are independently accessible from remaining bits of the at least one memory line.
Abstract:
A method and apparatus for memory built-in self-test (MBIST) may be configured to load a testing program from an MBIST controller, execute the testing program, and determine and write pass/fail results to a read-out register. For example, in various embodiments, the testing program may comprise one or more write operations that are configured to change data stored in a plurality of memory bitcells from a first value to a second value while a byte enable signal is asserted in order to test stability associated with a memory bitcell, create DC and AC noise due to byte enable mode stress, check at-speed byte enable mode timing, and execute a self-checking algorithm that may be designed to verify whether data is received at a data input (Din) pin. Any memory bitcells storing a value different from an expected value after performing the write operation(s) may be identified as having failed the MBIST.
Abstract:
In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may change a device operating voltage from a first voltage to a second voltage while the assist circuit is in a first state. The apparatus may also maintain the device operating voltage at the second voltage for a predetermined time. The apparatus may switch the assist circuit from the first state to a second state. The apparatus may adjust the device operating voltage to a third voltage after the predetermined time, wherein the second voltage is a voltage level between the first voltage and the third voltage. By transitioning the device operating voltage from the first voltage to the third voltage while at the same time preventing the assist circuit from entering particular read assist states, the apparatus may reduce a likelihood of read failures.
Abstract:
Voltage droop control is disclosed. A device includes a first component coupled to an external power supply and a second component coupled to the external power supply. The first component includes a first input configured to receive a first voltage, a first internal power supply configured to be charged by the external power supply in response to the first voltage corresponding to a first logical value, and a voltage droop controller configured to output a second voltage via a first output. The second voltage corresponds to the first logical value in response to a first voltage level of the first internal power supply satisfying a second voltage level. The second component includes a second input configured to receive the second voltage from the first output.