Summary http quakersfp.live.poptech.coop qfp Cover of Quaker Faith and Practice , as published by Britain Yearly Meeting . Licensing Non free book cover ... more details
small Quad Flat Package VTQFP Very Thin Quad Flat Package Some QFP packages have an Exposed Pad. The exposed pad is an extra pad underneath or on top of the QFP that may act as a ground connection and or as a heat .... These type of QFP packages often have a EP suffix e.g. a LQFP EP 64 , or they have an odd ... ca Quad Flat Package de Quad Flat Package es Quad Flat Package eu QFP fr Quad Flat Package ko QFP it QFP ja QFP pt Quad Flat Package ru QFP sv QFP ... more details
Summary Information Description 304 pin QFP chip, made by Sega Source Sega Model 3 arcade game PCB Date 14 41, 9 January 2010 UTC Author M. Pritchard Permission other versions Licensing PD self date January 2010 ... more details
Image PQFP 44L.gif thumb PQFP , or plastic quad flat pack , is a type of Integrated circuit IC packaging. PQFP is a special case of QFP , as is the thinner TQFP package. PQFP packages can vary in thickness from 2.0 mm to 3.8 mm. See also Chip carrier Chip packaging and package types list References http www.issi.com pdf PQ.pdf PQFP packaging information from Integrated Silicon Solution, Inc. PDF Category Chip carriers electronics stub zh PQFP ko PQFP ... more details
Invented by Eiichi Goto at the University of Tokyo , the Quantum Flux Parametron QFP is an improvement over his earlier parametron based digital logic technology. Unlike its predecessor, QFP uses superconductivity superconducting Josephson junction s on integrated circuits to improve speed and energy efficiency enormously. In some applications, the complexity of the cryogenic cooling system required is negligible compared to the potential speed gains. While his design makes use of Quantum mechanics quantum principles, it is not a quantum computer technology, gaining speed only through higher Clock signal clock speeds. Apart from the speed advantage over traditional CMOS integrated circuit design is that parametrons can be operated with zero energy loss no local increase in entropy , making reversible computing possible. Low energy use and heat generation is critical in supercomputer design, where thermal load per unit volume is has become one of the main limiting factors. A related technology is the Rapid single flux quantum Rapid Single Flux Quantum digital logic. External links http www.thocp.net hardware parametron.htm Parametron , The History of Computing project http www.ipsj.or.jp katsudou museum computer 0080 e.html Parametron , early computers, Information Processing Society of Japan tech stub Category Digital electronics Category Quantum electronics Category Superconductivity ... more details
Image 68030.jpg thumb Motorola 68030 microprocessor The Motorola 68030 is a 32 bit microprocessor in Motorola s Motorola 68000 family 68000 family . It was released in 1987 . The 68030 was the successor to the Motorola 68020 , and was followed by the Motorola 68040 . In keeping with general Motorola naming, this CPU is often referred to as the 030 pronounced oh three oh or oh thirty . An EC variant was produced, intended for embedded environments, which lacks an MMU. The 68030 features on chip instruction and data caches of 256 byte s each. It also has an on chip MMU memory management unit but does not have a built in floating point unit FPU floating point unit . The Motorola 68881 68881 and the faster Motorola 68882 68882 floating point unit chips could be used with the 68030. A lower cost version of the 68030, the Motorola 68EC030 , was also released, lacking the on chip MMU. It was commonly available in both 132 pin Quad Flat Package QFP and 128 pin Pin Grid Array PGA packages. The poorer thermal characteristics of the QFP package limited the full 68030 QFP variant to 33 MHz. The PGA 68030s included 40 MHz and 50 MHz versions. There was also a small supply of QFP packaged EC variants. As a microarchitecture, the 68030 is basically a 68020 core with an additional data cache and a process shrink. Motorola used the process shrink to pack more hardware on the die in this case it was the memory management unit MMU , which was 68851 compatible. The integration of the MMU made it more cost effective than the 68020 with an external MMU. The 68030 also lacks some of the 68020 s instructions. When using with a 68020 bus, the 68030 did not differentiate itself in performance from the 68020 that it was derived from. However, the 68030 provides an additional synchronous bus interface which, if used, accelerates memory accesses up to 33 compared to an equally clocked 68020. The finer manufacturing process allowed Motorola to scale the full version processor to 5 ... more details
Image Cyrix cx9210 gfdl.jpg thumb 200px right A 144 pin LQFP IC A Low profile Quad Flat Package LQFP is a surface mount integrated circuit package format with component leads extending from each of the four sides. Pins are numbered counter clockwise from the index dot. Spacing between pins can vary common spacings are 0.4, 0.5, 0.65 and 0.80 mm intervals. See also QFP TQFP Thin Quad Flat Package See also Chip carrier Chip packaging and package types list External links http www.topline.tv images TQFP.jpg Image of an LQFP IC Category Chip carriers electronics stub ca Low profile Quad Flat Package es Low profile Quad Flat Package ko LQFP ... more details
A thin quad flat pack TQFP is a type of Surface mount technology surface mounted Chip carrier package . TQFPs provide the same benefits of the metric QFP , but are thinner body thickness of 1.0 mm and have a standard lead frame footprint 2.0 mm lead footprint . TQFPs help solve issues such as increasing board density, die shrink programs, thin end product profile and portability. Lead counts range from 32 to 176. Body sizes range from 5 mm x 5 mm to 20 x 20 mm. Copper lead frames are used in TQFPs. Lead pitches available for TQFPs are 0.4 mm, 0.5 mm, 0.65 mm, 0.8 mm, and 1.0mm. Image PIC18F8720.jpg right thumbnail An integrated circuit in an 80 pin TQFP package. See also Chip carrier Chip packaging and package types list References http www.latticesemi.com dynamic view document.cfm?document id 8902 Solder reflow guide from Lattice Semiconductor lists TQFP thicknesses See also QFP Quad Flat Package LQFP Low Profile Quad Flat Package External links http en.howto.wikia.com wiki Guide to IC packages Wikihowto Guide to IC packages Category Chip carriers electronics stub ko TQFP ru TQFP it TQFP SAC BGAs are not compatible to PBed assembly lines. ... more details
Infobox CPU name XS1 L1 image XCore XS1 L1 64QFP.png caption An XMOS Xcore L processor, 64 QFP LQFP package, 10x10 mm. produced start 2009 produced end slowest slow unit MHz fastest 500 fast unit MHz manuf1 arch XCore XS1 pack1 64 QFP LQFP EP pack2 128 QFP TQFP EP pack3 124 dual row QFN numcores 1 or 2 The XS1 L1 ref cite web url https www.xmos.com download public XM 000305 DS 2.pdf title XCore XS1 L1 datasheet accessdate 2009 06 24 work XMOS web site ref is a Microprocessor processor designed by XMOS . It is a 32 bit processor, that runs up to 8 concurrent threads. It was available as of June 2009 running at 400 MHz. As of April 2010 500 Mhz versions are available. Each thread can run at up to 125 MHz four threads follow each other through the Instruction pipeline pipeline , resulting in a top speed of 500 MIPS if at least four threads are active. The 500 MIPS of each core is equally distributed over all active threads. This allows the use of extra threads in order to hide latency. Description The XS1 L1 comprises a single core processor and a switch. The execution core has a data path, a memory, and register banks for eight threads. The switches of two or more XS1 L1 processors can be connected using a link, whereupon threads can communicate with each other by exchanging messages through the switches. The switching mechanism is abstracted by means of a channel programming channel , a virtual connection between two threads. The XS1 L1 is an Event computing event driven processor which enables the processor to stop a thread and restart it when an event is ready. In addition, a thread may be interrupts interrupted in order to deal with some external events. The switch has eight external links, permitting a maximum throughput of 3.2 GBits s to other cores. Instruction Set Architecture main XCore XS1 Each thread has access to 12 general purpose registers, and a standard Instruction set Number of operands 3 operand instruction set is used for programming the thread ... more details
Citations missing article date March 2011 Offshore radio is radio broadcasting from ships or fixed maritime structures, usually in international waters . The claimed first wireless broadcast of music and speech for the purpose of entertainment was transmitted from a Royal Naval craft, the HMS Andromeda, in 1907. The broadcast was organized by a Lieutenant Quentin Crauford using the callsign QFP while the ship was anchored off Chatham in the Thames Estuary, England. The majority of offshore broadcasters have however been pirate radio stations using seaborne broadcasting as a means to circumvent national broadcasting regulations, for example the practice has been used by broadcasting organisations like the Voice of America as a means of circumventing national broadcasting regulations of other nations. Offshore pirate stations have operated off the coasts of Belgium , Denmark , Israel , The Netherlands , New Zealand , Sweden , The United Kingdom , Yugoslavia and the United States . See Pirate radio for full details. See also Marine Broadcasting Offences Act Laser 558 Radio Caroline Radio Northsea Radio Essex pirate radio station Radio Essex Wonderful Radio London Radio London Radio Nord Radio Sutch, which became Radio City pirate radio station Radio Veronica Swinging Radio England Voice of America Voice of Peace Israel The Boat That Rocked Movie External links http www.offshoreradio.org.uk All abouth Offshore Radio website dedicated to the offshore stations. http www.offshore radio.de fleet index.html The Broadcasting Fleet Attempts to provide a comprehensive list of all ships and offshore structures used for broadcasting http www.offshoremusicradio.com Offshore Music Radio website dedicated the music and radio presenters of the offshore stations. http www.radiolondon.co.uk Radio London site dedicated to UK offshore radio, especially Radio London. Category Offshore radio radio comm stub fr Radio offshore nl Zeezender ... more details
hot air system Quad Flat Package QFP chips have thin leads closely packed together protruding from ... surrounding components and avoids damage to the board or the QFP . The system takes advantage ... more details
QFP package with metric pin distribution ref name interfacebusSOIC MSOP Mini Small Outline Package ... QFP ref name interfacebusSOIC ref name cpushack PSOP Plastic small outline package ref name interfacebusSOIC ... Quad Flat Package QFP Quad Flat Package ref name interfacebusSOIC ref name cpushack QIP Quad ... more details
notability products date July 2009 Image KL Zilog Z180.jpg thumb right Older Z180 in PLCC package the smaller QFP and LQFP packages are more common today . Image KL Zilog Z180 DIP.jpg thumb Z8S180. The Zilog Z180 8 bit processor is a successor of the Zilog Z80 Z80 CPU. It is compatible with the large base of software written for the Z80. ref cite web url http www.z80.info z80lives.htm quote The designers picked an architecture compatible with the Z80, giving Z80 users a completely software compatible upgrade path title The Z80 Lives last Ganssle first Jack date 1992 ref The Z180 family adds higher performance and integrated peripheral functions like clock generator, 16 bit counters timers, interrupt controller, wait state generators, serial ports and a DMA controller. ref cite book page 13 isbn 9780122748806 author Jack G. Ganssle. year 1992 publisher Academic Press location San Diego title The art of programming embedded systems ref It uses separate read and write strobes, sharing similar timings with the Z80 and Intel processors. ref cite book page 34 isbn 9780750675345 author Stuart R. Ball. year 2002 publisher Newnes location Amsterdam title Embedded microprocessor systems real world design ref The on chip memory management unit MMU has the capability of addressing up to 1 Megabyte MB of memory. It is possible to configure the Z180 to operate as the Hitachi HD64180 . class wikitable Chip Speed MHz Timers I O Comm. Contr. Others Z80180 6, 8, 10 2 N S CPU 1 MB MMU, 2xDMAs, 2xUARTs Z80181 10 1 16 CPU 1 MB MMU, 2xDMAs, 2xUARTs Z80182 16, 33, 20 0 Clock Serial, 24 ESCC, CSIO, UART S180 Megacell, 2xESCC channels, 16550 MIMIC Z80195 20, 33 4 7 24 SCC, CSIO, UART Z8L180 20 2 Clock Serial CSIO, UART 1 MB MMU, 2xDMAs, 2xUARTs, 3.3 V Operation Z8L182 20 0 Clock Serial ESCC, CSIO, UART S180 Megacell, 2xESCC channels, 16550 MIMIC, 3.3V operation Z8S180 10, 20, 33 2 Clock Serial UART, DMA, I2C, SPI 1 MB MMU, 2xDMAs, 2xUARTs Z80182 The Zilog Z80182 is an enhanced, faster versi ... more details
1.27 mm QFP Quad Flat Package, various sizes, with pins on all four sides LQFP Low profile Quad ... MQFP Metric Quad Flat Pack, a QFP package with metric pin distribution TQFP thin quad flat pack ... more details
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