摘要:
A multi-port memory cell (112) of a multi-port memory array (104) includes a first inverter (206) that is disabled by a first subset (WWL0-3) of a plurality of write word lines and a second inverter (204), cross coupled with the first inverter (206), wherein the second inverter (204) is disabled by a second subset (WWL4-7) of the plurality of write word lines. A first selection circuit has data inputs coupled to a first subset of a plurality of write bit lines, selection inputs coupled to the first subset of the plurality of write word lines, and an output coupled to the input of the second inverter (204). The second selection circuit has data inputs coupled to a second subset (WBL4-7) of the plurality of write bit lines, selection inputs coupled to the second subset of the plurality of write word lines, and an output coupled to the input of the first inverter (206).
摘要:
A vibration gyroscope circuitry (VCIRC) connectable to a vibrating MEMS gyroscope (VMEMS). The circuitry comprises drive circuitry (DRIVE) arranged to drive, when the circuitry is connected, the vibration MEMS gyroscope (VMEMS) and a measurement unit (DMU) which provides a drive measurement voltage signal (DMV) forming a measure of a displacement of a mass along a drive axis. A sense circuitry (SENSE) is arranged to process a sense measurement signal of the vibration MEMS gyroscope (VMEMS) forming a measure for a displacement of the mass along a sense axis. A digital sample clock generator (SCG) is arranged to generate a sample clock signal (SCLK) from an input signal (FDxy) derivable from a drive measurement voltage signal (DMV). The sample clock generator (SCG) comprises an oscillator (HFOSC) arranged to generate a master clock (MOSC), and a counter unit (OSCCNTR) arranged to count master clock periods during one period of the input signal. The clock generator also comprises a number count monitor (NCM) arranged to determine during how many input signal periods the number count stays constant, and to compare the number of constant periods (Ncp) with a critical number of constant periods (Ncp_crit). A frequency shifter (FSH) will trigger the oscillator to shift the master clock frequency whenever the number count monitor (NCM) has determined that the number of constant periods (Ncp) exceeds the critical number of constant periods (Ncp_crit).
摘要:
A CAN FD frame comprises one or more portions provided at a normal bit rate that includes an end-of-frame field consisting of a succession of at least seven recessive bits. A method for detecting the end-of-frame of a CAN FD frame in an input bit stream entails providing a recessive bit count; defining a stretched bit transmission time longer than the bit transmission time associated with the high data rate; stretching the bit transmission time of each dominant bit succeeding a recessive bit in the input bit stream to the stretched bit transmission time to generate a conditioned input bit stream; sampling the conditioned input bit stream at a bit counter rate to generate a sampled bit stream; resetting the recessive bit count in response to each dominant bit in the sampled bit stream; and incrementing the recessive bit count in response to each recessive bit in the sampled bit stream.
摘要:
A leadframe (300, 700) (e.g., incorporated in a device package) includes a feature (310, 322, 710, 722) (e.g., a die pad or lead) with a vent hole (336, 736) formed between first and second opposed surfaces (410, 412). The cross-sectional area of the vent hole varies substantially between the surfaces (e.g., the vent hole has a constricted portion (460)). The vent hole may be formed from a first opening (420) extending from the first surface toward the second surface to a first depth (452) that is less than a thickness (450) of the leadframe feature, and a second opening (430) extending from the second surface toward the first surface to a second depth (454) that is less than the thickness of the leadframe feature, but that is large enough for the second opening to intersect the first opening. Vertical central axes (428, 429) of the openings are horizontally offset from each other, and the constricted portion of the vent hole corresponds to the intersection of the openings.
摘要:
A monolithic integrated circuit includes first (424) and second (420) pluralities of parallel-connected transistor elements (e.g., transistor fingers). To spread heat in the IC, the first and second pluralities of transistor elements are interleaved with each other and arranged in a first row (474). The IC also may include third (434) and fourth (430) pluralities of parallel-connected transistor elements arranged in a second row (476). The transistor elements in the first row may be series and shunt transistors of an RF switch transmit path, and the transistor elements in the second row may be series and shunt transistors of an RF switch receive path. During a transmit mode of operation, the series transistors in the transmit path and the shunt transistors in the receive path are closed. During a receive mode of operation, the shunt transistors in the transmit path and the series transistors in the receive path are closed.
摘要:
An integrated circuit includes a first transistor (16) including a first current electrode, a second current electrode, and a bulk tie; a first conductive line coupled between the first current electrode and a first supply voltage (VDD); and a second conductive line coupled to the second current electrode. A resistance of the second conductive line is at least 5 percent greater than a resistance of the first conductive line. The bulk tie is coupled to a second supply voltage (VBB). The first supply voltage is different than the second supply voltage.