摘要:
Enhanced passgate structures for use in low-voltage systems are presented in which the influence of Vt on the range of signals passed by single-transistor passgates is reduced. In one arrangement, the VGATE-Vt limit for signals propagated through NMOS passgates is raised by applying a higher VGATE; in another arrangement, the Vt is lowered. The use of CMOS passgates in applications where single-transistor passgates have traditionally been used is also presented.
摘要:
An item dispenser and methods for dispensing the item. In some embodiments of the invention, the item dispenser may include a housing, an item carriage, and a movable support. The movable support may be indexed to position the item carriage at (1) a first position in which the item carriage is positioned to release only a first item; and (2) a second position in which the item carriage is positioned to release a second item. In some embodiments of the invention, the dispenser may include a housing, a pivotable cap and a snap fastener. The snap fastener may extend from the cap to the housing and engage the housing to lock the cap in the closed position. The cap may be opened by moving an interference block away from a snap fastener lever.
摘要:
The present invention provides a DQS bus for implementing high speed multiple-data-rate interface architectures in programmable logic devices. The DQS bus has a balanced tree structure between at least one data strobe circuit and a plurality of I/O register blocks.
摘要:
Circuits, methods, and apparatus that provide a precise phase shift for a read strobe or other signal. One embodiment provides a read strobe delay line including a series of delay elements, where inputs or outputs of at least some of delay elements are received by a multiplexer. One input of this multiplexer is selected as the read strobe signal. Further precision adjustment may be made in the delay of the read strobe signal by using a delay line in a reference delay-locked loop, where that delay line also includes a series of delay elements, and inputs or outputs of at least some of the delay elements are multiplexed.
摘要:
A bottom die and a top die stacked on the bottom die are configured to provide a daisy chain function. Both die include an input/output function control bonding pad (20G), a first bonding pad (20C) controllable to function as either an input or an output, and a second bonding pad (20E) controllable to function as either an output or an electrically floating pad in response to a corresponding input/output function control signal. The top die (30) is stacked on the bottom die (20) and the first bonding pad (20C) of the bottom die (20) is wire bonded to the first bonding pad (30C) of the top die (30). A first reference voltage (VDD) on the function control bonding pad of the bottom die configures its first bonding pad as an output and its second bonding pad as electrically floating, and a second reference voltage (VSS) on the function control bonding pad of the top die configures its first bonding pad as an input and its second bonding pad as an output, to thereby provide the daisy chain function.
摘要:
An embodiment of this invention pertains to a 3-sided routing architecture to interconnect function blocks, such as logic array blocks (“LABs”), within a programmable logic device (“PLD”). In the 3-sided routing architecture, inputs and outputs on a first side of a function block connect to a first channel, and inputs and outputs on a second side of the function block connect to a second channel where the second side is opposite the first side. Inputs and outputs on a third side of the function block connect to a third channel. A fourth channel associated with a fourth side of the function block, the fourth side opposite the third side, is coupled only to the first channel and the second channel. In one configuration, the inputs and outputs on each of the first side, the second side, and the third side have an equal number of inputs and outputs. In this configuration, each of the first channel, the second channel, and the third channel have the same width. In another configuration, the number of pins on one of the first side, the second side, or the third side differs from the number of pins on another one of those sides.
摘要:
A logic array block (LAB) that is programmably selectively configurable for use as a multifunction memory array is provided. The LAB is configurable for operation in at least two modes: in a first mode, each logic element within the LAB is individually configurable to perform logic functions; in a second mode, the logic elements are collectively usable as a multifunction memory array. The multifunction memory array may be addressed on a LAB-wide basis with separate read and write addresses, such that it may be configured to implement a variety of memory schemes, including first-in-first-out (FIFO) memory and random access memory (RAM).
摘要:
Coated porous materials that exhibit air permeability and repellency to liquids having a surface tension at least equal to or greater than 20 dynes/cm which are suitable for making ileostomy vent filters, transdermal drug substrates, agricultural and medical apparel, as well as paint and chemical protective garments. The coating for the porous material is applied as a curable composition containing fluorocarbon urethane precursors which are cross-linked in situ.
摘要:
A cylindrical side wall of a can body has embossed features therein. Tooling for the embossing of a can body include male and female tooling members. The male member has protuberances of various elevations that apply embossed features of various depths to the can body, rendering a can with multi-dimensional features.
摘要:
Stretchable laminate constructions based on an elastic fabric and a substantially non-elastic film which are held in intimate contact with one another by means of a discontinuous pattern of adhesive are disclosed. When the laminate constructions of the invention are in a relaxed state, the length of the film between adjacent adhesion points along the direction of stretch of the elastic fabric is substantially equivalent to the length of the elastic fabric between the same adhesion points when the construction is extended to its elastic recovery limit. A preferred embodiment of the invention utilizes waterproof breathable non-elastic membranes to produce laminate constructions suitable for clean room and protective garment applications.