摘要:
A memory device for performing logical operations on two or more input variables includes a match line and first and second memory cells. The first and second memory cells collectively include a first, second, third and fourth memory element. The first, second, third and fourth memory elements may have either a first value or a second value programmed therein and wherein the first, second, third and fourth memory elements are programmed to either the high or low resistive values based on a particular logic function to be performed.
摘要:
A memory system includes a content addressable memory (CAM) including a plurality of match lines, each match line having a plurality of memory cells coupled thereto. The system also includes a match detector coupled to the CAM and a reference match line having a plurality of reference memory cells coupled thereto, the reference memory cells being of the same type and the memory cells. The system also includes a match line sensor coupled to the reference match line and the match detector that determines a characteristic of the reference match line and provides a timing signal to the match detector based on the characteristic.
摘要:
A memory device for storing one or more addresses includes a match line and first and second memory cells that form a 2-bit memory cell. Each memory cell includes two memory elements coupled to a match line and selection lines coupled thereto. The selection lines provide a signal representative of a logical combination of at least two different inputs.
摘要:
A memory system includes a content addressable memory (CAM) including a plurality of match lines, each match line having a plurality of memory cells coupled thereto. The system also includes a match detector coupled to the CAM and a reference match line having a plurality of reference memory cells coupled thereto, the reference memory cells being of the same type and the memory cells. The system also includes a match line sensor coupled to the reference match line and the match detector that determines a characteristic of the reference match line and provides a timing signal to the match detector based on the characteristic.
摘要:
A memory device for performing logical operations on two or more input variables includes a match line and first and second memory cells. The first and second memory cells collectively include a first, second, third and fourth memory element. The first, second, third and fourth memory elements may have either a first value or a second value programmed therein and wherein the first, second, third and fourth memory elements are programmed to either the high or low resistive values based on a particular logic function to be performed.
摘要:
A memory system for storing one or more addresses includes a transposable memory having word lines, bit lines, transposed word lines and transposed bit lines and that receives and stores an input array having dimensions M by N and a content addressable memory (CAM) that reads the transposed word lines of the transposable memory to form input words and that stores the input words in an N by M array.
摘要:
A memory device for storing one or more addresses includes a match line and first and second memory cells that form a 2-bit memory cell. Each memory cell includes two memory elements coupled to a match line and selection lines coupled thereto. The selection lines provide a signal representative of a logical combination of at least two different inputs.
摘要:
A low voltage signaling system for integrated circuits includes a first voltage domain operating at a nominal integrated circuit (IC) power supply voltage (Vdd) swing level at a signal transmitting end of a first chip, a second voltage domain having one or more transmission interconnect lines operating at a reduced voltage swing level with respect to the first voltage domain, and a third voltage domain at a signal receiving end of a second chip, the third voltage domain operating at the Vdd swing level; wherein an input signal originating from the first voltage domain is down converted to operate at the reduced voltage swing level for transmission over the second voltage domain, and wherein the third voltage domain senses the input signal transmitted over the second voltage domain and generates an output signal operating back up at the Vdd swing level.
摘要:
A low voltage signaling system for integrated circuits includes a first voltage domain operating at a nominal integrated circuit (IC) power supply voltage (Vdd) swing level at a signal transmitting end of a first chip, a second voltage domain having one or more transmission interconnect lines operating at a reduced voltage swing level with respect to the first voltage domain, and a third voltage domain at a signal receiving end of a second chip, the third voltage domain operating at the Vdd swing level; wherein an input signal originating from the first voltage domain is down converted to operate at the reduced voltage swing level for transmission over the second voltage domain, and wherein the third voltage domain senses the input signal transmitted over the second voltage domain and generates an output signal operating back up at the Vdd swing level.
摘要:
Content addressable memory device utilizing phase change devices. An aspect of the content addressable memory device is the use of a comparatively lower power search-line access element and a comparatively higher power word-line access element. The word-line access element is only utilized during write operations and the search-line access element is only utilized during search operations. The word-line access element being electrically coupled to a second end of a phase change memory element and a word-line. The search-line access element also being electrically coupled to the second end of the phase change memory element and a search-line. The search-line being electrically coupled to a match-line. A bit-line is electrically coupled to a first end of the phase change memory element. Additionally, a complementary set of access elements, a complementary phase change memory element, a complementary search-line, and a complementary bit-line are also included in the content addressable memory device.