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Programmable Logic Device
A programmable logic device (PLD) is an electronic component used to build reconfigurable digital circuits. Unlike digital logic constructed using discrete logic gates with fixed functions, the function of a PLD is undefined at the time of manufacture. Before the PLD can be used in a circuit it must be programmed to implement the desired function. Compared to fixed logic devices, programmable logic devices simplify the design of complex logic and may offer superior performance. Unlike for microprocessors, programming a PLD changes the connections made between the gates in the device. PLDs can broadly be categorised into, in increasing order of complexity, simple programmable logic devices (SPLDs), comprising programmable array logic, programmable logic array and generic array logic; complex programmable logic devices (CPLDs); and field-programmable gate arrays (FPGAs). History In 1969, Motorola offered the XC157, a mask-programmed gate array with 12 gates and 30 uncom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UV EPROM
An EPROM (rarely EROM), or erasable programmable read-only memory, is a type of programmable read-only memory (PROM) chip that retains its data when its power supply is switched off. Computer memory that can retrieve stored data after a power supply has been turned off and back on is called non-volatile. It is an array of floating-gate transistors individually programmed by an electronic device that supplies higher voltages than those normally used in digital circuits. Once programmed, an EPROM can be erased by exposing it to strong ultraviolet (UV) light source (such as from a mercury-vapor lamp). EPROMs are easily recognizable by the transparent fused quartz (or on later models' resin) window on the top of the package, through which the silicon chip is visible, and which permits exposure to ultraviolet light during erasing. It was invented by Dov Frohman in 1971. Operation Development of the EPROM memory cell started with investigation of faulty integrated circuits where ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lattice Semiconductor
Lattice Semiconductor Corporation is an American semiconductor company specializing in the design and manufacturing of low power field-programmable gate arrays (FPGAs). Headquartered in the Silicon Forest area of Hillsboro, Oregon, the company also has operations in San Jose, Calif., Shanghai, Manila, Penang, and Singapore. Lattice Semiconductor has more than 1000 employees and an annual revenue of more than $660 million as of 2022. The company was founded in 1983 and went public in 1989. It is traded on the Nasdaq stock exchange under the symbol LSCC. History Founding and early growth Lattice was founded on April 3, 1983, by C. Norman Winningstad, Rahul Sud, and Ray Capece, with investment from Winningstad, Harry Merlo, Tom Moyer, and John Piacentini. Lattice was incorporated in Oregon in 1983 and reincorporated in Delaware in 1985. Co-founder Sud left as president in December 1986, and Winningstad left in 1991 as chairman of the board. Early struggles led to chapter 11 ban ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vantis
Vantis plc was an accountancy firm based in London, England, providing accounting, tax and business advice to owner-managed businesses, listed companies, not for profit organisations, high-net-worth individuals and other professionals. It was placed in administration on 29 June 2010 and promptly broken up, with the various offices and businesses being sold as going concerns. History Vantis was formed as a "consolidator", inviting existing small local accountancy partnerships to join it and become part of a national company. It was listed on the Alternative Investment Market (AIM) in May 2002. In 2005 it took over struggling competitor Numerica, selling some of the offices to BDO Stoy Hayward. Numerica was one of the first consolidators, led by former firm Levy Gee; at a time when audit work was restricted to partnerships, it was the first publicly listed company to employ staff part-time who also did audit work for an associated partnership. Numerica had been the UK member of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
22V10
V1 can refer to the first version of anything. V1, V01 or V-1 may also refer to: In aircraft * V-1 flying bomb, a World War II German weapon * V1 speed, the maximum speed at which an aircraft pilot may abort a takeoff without causing a runway overrun * Vultee V-1, an American single-engine airliner of the 1930s * Fokker V.1, a German parasol monoplane experimental fighter prototype, built in 1916 * The first prototype/experimental ''(Versuchs)'' airframe of nearly any German WW II-era military aircraft Vessels * V1-class destroyer, a German World War I destroyer class * USS V-1, 1924–1931 designation of the USS ''Barracuda'' (SS-163), first of the US "V-boat" series of submarines * V1, a rudderless single-paddler outrigger canoe * V1, the first prototype of the Panzer VIII Maus tank In medicine * V1, the primary visual cortex * V1, the ophthalmic nerve, first division of the trigeminal nerve * V1, one of six precordial leads in electrocardiography Other uses * Base fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Second Source
In the electronics industry, a second source is a company that is licensed to manufacture and sell components originally designed by another company (the first source). It is common for engineers and purchasers to seek components that are available from multiple sources, to avoid the risk that a problem with one supplier would prevent a product from being manufactured. For simple components such as resistors and transistors, this is not usually an issue, but for complex integrated circuits, vendors often react by licensing one or more other companies to manufacture and sell the same parts as second sources. While the details of such licenses are usually confidential, they often involve cross-licensing, so that each company also obtains the right to manufacture and sell parts designed by the other. In the early TTL device period wafers were smaller so production was limited. More production lead to lower prices and new designs rapidly emerged. Examples MOS Technology licensed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
State Machine
A finite-state machine (FSM) or finite-state automaton (FSA, plural: ''automata''), finite automaton, or simply a state machine, is a mathematical model of computation. It is an abstract machine that can be in exactly one of a finite number of ''states'' at any given time. The FSM can change from one state to another in response to some inputs; the change from one state to another is called a ''transition''. An FSM is defined by a list of its states, its initial state, and the inputs that trigger each transition. Finite-state machines are of two types— deterministic finite-state machines and non-deterministic finite-state machines. For any non-deterministic finite-state machine, an equivalent deterministic one can be constructed. The behavior of state machines can be observed in many devices in modern society that perform a predetermined sequence of actions depending on a sequence of events with which they are presented. Simple examples are: vending machines, which dispens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flip-flops
Flip-flops are a type of light sandal-like shoe, typically worn as a form of casual footwear. They consist of a flat sole held loosely on the foot by a Y-shaped strap known as a toe thong that passes between the first and second toes and around both sides of the foot. This style of footwear has been worn by people of many cultures throughout the world, originating as early as the ancient Egyptians in 1500 BC. In the United States the modern flip-flop may have had its design taken from the traditional Japanese '' zōri'' after World War II, as soldiers brought them back from Japan. Flip-flops became a prominent unisex summer footwear starting in the 1960s. Etymology and other names The term ''flip-flop'' has been used in American and British English since the 1960s to describe inexpensive footwear consisting of a flat base, typically rubber, and a strap with three anchor points: between the big and second toes, then bifurcating to anchor on both sides of the foot. "Flip-flop" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minterms
In Boolean algebra, any Boolean function can be expressed in the canonical disjunctive normal form ( CDNF), minterm canonical form, or Sum of Products (SoP or SOP) as a disjunction (OR) of minterms. The De Morgan dual is the canonical conjunctive normal form ( CCNF), maxterm canonical form, or Product of Sums (PoS or POS) which is a conjunction (AND) of maxterms. These forms can be useful for the simplification of Boolean functions, which is of great importance in the optimization of Boolean formulas in general and digital circuits in particular. Other canonical forms include the complete sum of prime implicants or Blake canonical form (and its dual), and the algebraic normal form (also called Zhegalkin or Reed–Muller). Minterms For a boolean function of n variables , a minterm is a product term in which each of the n variables appears ''exactly once'' (either in its complemented or uncomplemented form). Thus, a ''minterm'' is a logical expression of ''n'' variables ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
JK Flip-flops
In electronics, flip-flops and latches are circuits that have two stable states that can store state information – a bistable multivibrator. The circuit can be made to change state by signals applied to one or more control inputs and will output its state (often along with its logical complement too). It is the basic storage element in sequential logic. Flip-flops and latches are fundamental building blocks of digital electronics systems used in computers, communications, and many other types of systems. Flip-flops and latches are used as data storage elements to store a single ''bit'' (binary digit) of data; one of its two states represents a "one" and the other represents a "zero". Such data storage can be used for storage of ''state'', and such a circuit is described as sequential logic in electronics. When used in a finite-state machine, the output and next state depend not only on its current input, but also on its current state (and hence, previous inputs). It can also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monolithic Memories
Monolithic Memories, Inc. (MMI) was an American semiconductor company which produced bipolar PROMs, programmable logic devices, and logic circuits (including 7400 series TTL). A team of MMI engineers, under the direction of Ze'ev Drori and headed by John Birkner and H. T. Chua, invented the class of devices known as programmable array logic (PAL). MMI was founded in 1969 by former Fairchild Semiconductor engineer Ze'ev Drori, later the President and CEO of Tesla Motors. In 1987, under the stewardship of President Irwin Federman, it was merged with Advanced Micro Devices in a $422 million stock swap to become the world's largest integrated circuit manufacturer. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intersil
Intersil is an American semiconductor company headquartered in Milpitas, California. , Intersil is a subsidiary of Renesas. The previous Intersil was formed in August 1999 through the acquisition of the semiconductor business of Harris Corporation. Intersil is a power management IC business, with specialized capability in power management and precision analog technology for applications in industrial, infrastructure, mobile, automotive and aerospace. Company history The original Intersil, Inc. was founded in 1967 by the Swiss physicist Jean Hoerni to develop digital watch Integrated Circuits (ICs). The European subsidiary Eurosil was originally partially funded by SSIH, a Swiss watch company. Later-on, Intersil had a development contract with the Japanese company Daini Seikosha and became supplier of low-voltage CMOS watch ICs for Seiko. When microprocessors emerged to the market in the 1970s, Intersil participated with its 12-bit IM6100, which was the first microprocessor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
