25 microchips that shook the world
- Transfer

In the development of microchips, as in life, little things sometimes add up to significant phenomena. Make up a tricky microcircuit, create it from a strip of silicon, and your little creature can lead to a technological revolution. It happened with the microprocessor Intel 8088. And with Mostek MK4096 4-kilobit DRAM. And with Texas Instruments TMS32010 digital signal processor.
Among the many excellent chips that have appeared in factories for the fifty years of the reign of integrated circuits, one small group stands out. Their schemes turned out to be so advanced, so unusual, so ahead of their time, that we no longer have the technological cliches to describe them. Suffice it to say that they gave us the technology that made our fleeting and usually boring existence in this universe tolerable.
We have prepared a list of 25 ICs that, in our opinion, deserve an honorable place on the mantelpiece of the house, which was built by Jack Kilby and Robert Noyce [the inventors of the integrated circuit - approx. trans.]. Some of them turned into a long-playing icon of chip-lover worship: for example, the Signetics 555 timer. Others, such as the Fairchild 741 operational amplifier, have become an example of circuit patterns. Some, for example, Microchip Technology PIC microcontrollers, were sold in billions, and are still being sold. Several special chips, such as Toshiba flash memory, created new markets. And at least one has become a symbol of geeks in pop culture. The question is: what processor does Bender, an alcoholic, a smoker and a censorious robot from Futurama work on? Answer: MOS Technology 6502.
What unites all these chips is that partly and because of them, too, engineers rarely go for a walk on the street.
Of course, such lists are quite controversial. Someone can accuse us of whims and that we missed something. Why did we choose Intel 8088, and not the first, 4004? Where is the radiation resistant military processor class RCA 1802, the former brain of many spacecraft?
If you need one result of the introduction, then let it be this: our list is what remains after many weeks of controversy between the author, his trusted sources and several editors of the IEEE Spectrum. We did not try to create an exhaustive listing of each chip that has become a technological breakthrough or has known commercial success. We also did not include in the list the chips, the greatest in essence, but so unknown that only five engineers remember them to remember them. We concentrated on chips that have become unique, interesting, stunning. We chose chips of different types, from large and small companies, created a long time ago. Most of all, we picked up the ICs that influenced the lives of many people — chips that became part of the gadgets that shook the world, symbolized technological trends, or simply delighted people.
Each chip is accompanied by a description of how it appeared, why it was innovative, comments of engineers and directors involved in the development are given. This selection is not for historical archives, so we did not line them up in chronological order, or by type, or importance. We randomly placed them in the article so that it was interesting to read. After all, the story, in fact, quite sloppy.
Signetics NE555 Timer (1971)
It was this summer of 1970. Chip developer Hans Kamenzind [Hans Camenzind] probably knew a lot about Chinese restaurants, because his small office was sandwiched between two restaurants in the suburb of Sunnyvale, California. Kamenzind worked as a consultant for Signetics, a local firm operating in the semiconductor market. The economy flew into the abyss. He earned less than $ 15,000 a year, and he had a wife and four children at home. He urgently needed to invent something worthwhile.
And he did it. And invented one of the greatest chips of all time. The 555 was a simple IC capable of operating as a timer or oscillator. It will be the best-selling among analog semiconductor circuits, will appear in kitchen appliances, toys, spacecraft and thousands of other things.
“And after all, they almost did not think about doing it,” recalls Kamentzind, who, at 75, continues to develop chips, although he is already doing this very far from any Chinese restaurant.
The idea of the 555th came to him while working on the phase synchronization circuit. With minor corrections, the circuit could work as a simple timer. You power it, and it works for a certain period of time. It sounds simple, but then there was nothing like it.
Initially, the Signetics engineering department rejected this idea. The company was already selling components from which customers could make timers. Everything could end on this, but Kamenzind insisted. He went to see Art Fury, the company's marketing manager. Fury liked the idea.
For almost a year, Kamenzind tested prototypes on prototyping boards, painted components on paper and on Rubylith film masks. “All this was done manually, without any computers,” he says. In the final circuit turned out to be 23 transistors, 16 resistors and 2 diodes.
Entering the market in 1971, the 555 chip became a sensation. In 1975, Signetics absorbed Philips Semiconductors, now known as NXP, claiming sales were in the billions. Engineers are still using 555 to create useful electronic modules, as well as less useful pieces, such as the backlight of car grilles in the style of " Knight of the roads ."
Texas Instruments TMC0281 Speech Synthesizer (1978)

TMC0281 synthesized voice using linear prediction coding. The sound came from a mixture of buzzing, hissing and clicking. This was an unexpected solution to the problem, which, it was thought, “cannot be solved with the help of IP,” says Jean Franz, one of the four engineers who developed the toy, and still works at TI. Variants of this chip were used in Atari arcade games and Chrysler cars on platform K. In 2001, TI sold a line of speech synthesizers Sensory, which ceased production in 2007. But if you ever need to make a phone call over a very, very far distance, you can find Speak & Spell toys in excellent condition on eBay for under $ 50.
MOS Technology 6502 Microprocessor (1975)

The breakthrough, according to Bill Mensch, who created 6502 together with Peddl, was a minimal set of instructions and a new production process, "that issued 10 times more usable chips than the competition". 6502 almost single-handedly drove the cost of the processors, which helped launch the PC revolution. Some embedded systems still use it. Interestingly, 6502 also serves as the electronic brain of Bender, a robot from Futurama, which follows from the 1999 episode.
Texas Instruments TMS32010 Digital Signal Processor (1983)

Microchip Technology PIC 16C84 Microcontroller (1993)

Fairchild Semiconductor μA741 Op-Amp (1968)

In 1963, a 26-year-old engineer, Robert Widlar, developed the first monolithic opamp on an integrated circuit, the μA702, for Fairchild Semiconductor. They sold them for $ 300. Then Widlar issued an improved circuit, μA709, reducing the cost to $ 70 and bringing the chip to huge commercial success. They say that reckless Widlar asked for an increase after that, and when he did not receive it, he quit. With great pleasure, National Semiconductor hired a comrade who at the time helped establish the discipline of analog design of the IC. In 1967, Widlar again improved the opamp by making the LM101.
In the meantime, Fairchild managers were worried about the sudden competition, the recently hired David Fullagar carefully studied the LM101 in their lab. He realized that the chip, even if it was ingeniously created, had a couple of flaws. In order to avoid frequency distortions, engineers had to attach an external capacitor to it. In addition, the input part of the IC, the so-called. front-end, some chips were too sensitive to noise due to the inconsistent quality of semiconductor fabrication.
“The front end looked hastily,” he says.
Fullagar engaged in its own development. He expanded the limitations of semiconductor manufacturing by introducing a 30 pF capacitor into the chip. But how to improve the front-end? The solution was simple: “it just suddenly dawned on me when I drove the car” - and consisted of a couple of additional transistors. They made the amplifier smoother and the quality of production more constant.
Fullag carried his development to the head of a laboratory named Gordon Moore, and he sent it to the commercial department of the company. The new μA741 chip has become the standard among operational amplifiers. This IP and created by competitors Fairchild options sold hundreds of millions. Now for $ 300, which asked for its predecessor 702, you can buy a thousand 741 chips.
Intersil ICL8038 Waveform Generator (circa 1983)
Critics scoffed at the limited performance of the ICL8038 and its penchant for unstable behavior. This chip, a generator of sinusoidal, rectangular, triangular, and other waves, really behaved somewhat capriciously. But engineers soon learned how to reliably use it, and 8038 became a hit, which as a result sold by hundreds of millions, which found countless applications - for example, Mug's synthesizersand the blue boxes that phreakers used to hack telephone companies in the 1980s. The component was so popular that the company released a document called “Everything you always wanted to know about the ICL8038”. An example of a question from there: “Why, after connecting 7 and 8 pins, the IC works best in conditions of temperature change?” Intersil stopped production of 8038 in 2002, but amateurs are still looking for them and making home functional transformers and theremins.
Western Digital WD1402A UART (1971)
Gordon Bell is known for the PDP minicomputer series launched in the 1960s by Digital Equipment Corp. He also invented a less well-known, but no less important chip: universal asynchronous receiver / transmitter, UART. Bell needed circuits to connect Teletype and PDP-1, and this required the conversion of parallel signals into serial ones, and vice versa. Its implementation consisted of 50 separate components. Western Digital, a small company that manufactured calculator chips, offered to make a UART on a single chip. The company's founder, Al Phillips, still recalls how his vice president of product development showed him film sheets with a scheme ready for production. “I looked at them for a minute and found an open loop,” says Phillips. “The vice president was hysterical.” Western Digital introduced the WD1402A around 1971, and soon other options followed. Now UART are widely used in modems, computer peripherals and other equipment.
Acorn Computers ARM1 Processor (1985)

Kodak KAF-1300 Image Sensor (1986)

IBM Deep Blue 2 Chess Chip (1997)

Transmeta Corp. Crusoe Processor (2000)

Texas Instruments Digital Micromirror Device (1987)

Intel 8088 Microprocessor (1979)
Was there any single chip that dragged Intel into the Fortune 500 list? The company says it was: 8088. It was the 16-bit CPU that IBM chose for its original line of PCs, which came to dominate the desktop market.
By the strange vicissitudes of fate, the name of the chip, which became famous for supporting the x86 architecture, did not end with "86". The 8088th was a small remake of the 8086th, the first 16-bit Intel chip. Or, as Intel engineer Stephen Morse said, the 8088 was the "castrated version 8086". This is because the main innovation of the chip was not a step forward: 8088 processed data in 16-bit words, using an 8-bit external data bus.
Intel managers did not disclose the details of the 8088 project until the 8086 design was almost finished. "Management did not want to delay 8086 even for a day, telling us that they were thinking over 8088," said Peter Stoll, lead engineer of the 8086 project, who worked a little on 8088.
Only after the appearance of the first 8086 worker did Intel transfer the drawings Haifa, Israel, where two engineers, Rafi Retter and Dany Star, changed the chip to work on an 8-bit bus.
Such a modification turned out to be one of the best solutions of the company. The 8088 CPU with 29,000 transistors required fewer auxiliary chips, which could be cheaper, and “was fully compatible with 8-bit hardware, and also worked faster and helped organize a smooth transition to 16-bit processors,” as Robert Noyce and Ted Hoff wrote from Intel in the 1981 IEEE Micro magazine article.
The first PC to use the 8088 was the IBM Model 5150, a $ 3000 monochrome computer. Now almost all PCs in the world are built on CPUs whose ancestor is 8088. Not bad for a castrated chip.
Micronas Semiconductor MAS3507 MP3 Decoder (1997)

Mostek MK4096 4-Kilobit DRAM (1973)

Xilinx XC2064 FPGA (1985)
In the early 1980s, chip developers tried to squeeze everything out of each transistor in the circuit. But then Ross Freeman had a radical idea. He invented a chip clogged with transistors that formed not very strictly organized logical blocks that could be tuned using software. Sometimes a group of transistors could not be used - that's heresy! - but Freeman believed that Moore's law would eventually make transistors very cheap. So it happened. To market a chip called a user-programmable FPGA gate array, Freeman became a co-founder of Xilinx. (A strange concept for a company with a strange name). When its first product came out in 1985, the employees were given a task: they needed to manually draw an example of a circuit using XC2064 logic blocks, as the company's customers would do. Bill Carter, former technical director, recalls how he was approached by CEO Bernie Wonderschmitt, complaining that he "did not manage his homework a little." Carter gladly helped the boss. “And we, armed with paper and colored pencils, worked on Bernie’s task!” Today, FPGA chips sold by Xilinx and other companies are used in such a huge list of things that it will be hard to bring it here. This is the configuration! that it will be hard to bring him here. This is the configuration! that it will be hard to bring him here. This is the configuration!
Zilog Z80 Microprocessor (1976)
Federigo Faggin knew well how much money and man-hours needed to spend on bringing the microprocessor to the market. Working at Intel, he participated in the development of two fruitful representatives of this genus: the very first, 4004, and 8080 of the Altair genus. Having founded the Zilog company together with the former colleague from Intel, Ralph Ungerman, they decided to start with something simpler: a microcontroller on a single chip.
Faggin and Angermann rented an office in the suburbs of Los Altos in California, threw a business plan and went in search of venture capital. They ate at the nearest Safeway supermarket, Camembert Cheese and Crackers, he recalls.
But soon the engineers realized that the microcontroller market was already flooded with very good chips. Even if their chip were better than others, they would get a very small profit, and continue to eat cheese with crackers. Zilog needed to take a sight higher in the food chain - and so was born the project of the microprocessor Z80.
Their goal was to bypass 8080 performance and offer full compatibility for 8080 programs to divert Intel users. For months, Fuggin, Ungerman, and Masatoshi Shima, another former engineer from Intel, worked 80 hours a week, hunched over the tables and drawing diagrams for the Z80. Faggin soon realized that although small in size and can be beautiful [" small is beautiful " is a collection of essays by popular economist EF Schumacher / approx. transl.], but his eyes are very tired.
“By the end of the job, I had to buy glasses,” he says. “I became short-sighted.”
The team plowed the whole of 1975 and entered in 1976. By March, they finally had a prototype chip. The Z80 was a contemporary of MOS Technology's 6502, and like that, it stood out not only for its elegant design, but also for its low price ($ 25). But to begin to produce it, it took a lot of effort to persuade. “It’s just that the time was intense,” says Faggin, who also earned himself an ulcer [according to modern concepts, an ulcer is an infectious disease, not a nervous one ”. trans.].
But sales eventually went. The Z80 has built into thousands of products, including the first Osborne I laptop, home computers Radio Shack TRS-80 and MSX, printers, fax machines, photocopiers, modems and satellites. Zilog still produces the Z80 because of its popularity in some embedded systems. In the basic configuration today, it costs $ 5.73 - it is even cheaper than a lunch of cheese and crackers.
Sun Microsystems SPARC Processor (1987)

A long time ago, in the early 1980s, people wore warm leggings of neon colors and watched Dallas [a soap opera from 13 seasons about a cunning oil magnate / approx. transl.], and microprocessor developers tried to increase the complexity of the CPU instructions so that more actions could be performed in a single computation cycle. But then a group from the University of California at Berkeley, known for its counterculture bias, suggested the opposite: simplify the instruction set, and process them so quickly that you compensate for the fact that less is done in one cycle. A group from Berkeley led by David Patterson called this approach RISC - reduced instruction set computer [computer with a reduced instruction set].
From an academic point of view, the idea of RISC was not bad. But will she sell? This put Sun Microsystems. In 1984, a small team of Sun engineers began developing a 32-bit SPARC (Scalable Processor Architecture, scalable processor architecture) RISC processor. They wanted to use this chip in a new line of workstations. One day, Scott McNeely, director of Sun, appeared in the SPARC lab. “He said that SPARC will turn Sun from a company with revenues of $ 500 million a year into a company with revenues of a billion a year,” recalls Patterson, a consultant to the SPARC project.
And if this was not enough, then many experts doubted that the company would succeed in completing this project. Worse, the marketing team had an unpleasant insight: SPARC, on the contrary, will be CRAPS! [gambling dice, or plural shit - approx. transl.] Team members had to swear that they would not make a sound of it even among company employees - not to mention that these rumors reached their main competitor, MIPS Technologies, who also studied the RISC concept.
The first version of the minimalist SPARC consisted of a “matrix processor for 20,000 gates, which did not even have instructions for integer multiplication and division,” said Robert Garner, the leading architect of SPARC, today working at IBM. But at a speed of 10 million instructions per second, it worked three times faster than processors with a set of complex instructions (CISC) of that time.
Sun will use SPARC to work in profitable workstations and servers for many years. The first product based on SPARC, which appeared in 1987, was the Sun-4 line of workstations, which quickly captured the market and helped unleash the company's revenue for the billion-dollar milestone - as Makili predicted.
Tripath Technology TA2020 AudioAmplifier (1998)
There is a subset of audiophiles who insist that tube amplifiers produce the best sound, and that will always be the case. So when someone in the audio community said that a class D semiconductor amplifier, invented by the company from the Silicon Valley Tripath Technology, gives the same warm and vibrant sound, like tube amplifiers, it was a serious statement. The trick was to use a 50 MHz sampling system to operate the amplifier. The company boasted that their TA2020 works better and costs much less than any comparable semiconductor amplifier. To demonstrate his work at the exhibitions, “we played this very romantic song from Titanic,” says Adya Tripati, founder of Tripath. Like most Class D amplifiers, the 2020 was very energy efficient; he did not need a radiator and he could fit in a compact case. The lower quality, 15 W version of the TA2020 was sold in the US for $ 3 and was used in boom boxes and mini tape recorders. Other versions — the most powerful of which was the 1000-watt version — were used in home theaters, high-end audio systems and televisions from Sony, Sharp, Toshiba, and others. As a result, large semiconductor manufacturing companies entered this market, created similar chips and sent Tripath into oblivion. But their chips became the subject of worship. Amplifier kits and TA2020-based products are still sold in companies like 41 Hz Audio, Sure Electronics and Winsome Labs.
Amati Communications Overture ADSL Chip Set (1994)

Motorola MC68000 Microprocessor (1979)

Chips & Technologies AT Chip Set (1985)

Computer Cowboys Sh-Boom Processor (1988)

Toshiba NAND Flash Memory (1989)

The flash memory saga began when a Toshiba factory manager named Fujio Masuoka decided to reinvent the semiconductor memory. But first, a little history.
Before the advent of flash memory, magnetic tape, floppy disks and hard drives were the only way to store what was at that time considered to be large amounts of memory. Many companies tried to create semiconductor alternatives, but the available options, such as an EPROM that required ultraviolet to erase data, and an EEPROM that worked without ultraviolet, were economically unprofitable.
Masuoka-san from Toshiba is entering. In 1980, he hired four engineers to work on a semi-secret project to develop a memory chip capable of storing large amounts of data for little money. Their strategy was simple. “We knew that the cost of the chip would fall while the size of the transistors would decrease,” says Masuoka, now the technical director at Unisantis Electronics in Tokyo.
The Masuoka team came up with a variant of the EEPROM, in which the memory cell consisted of a single transistor. At that time, the usual EEPROM required two transistors per cell. It would seem that the difference was small, but it influenced the cost greatly.
In search of a memorable name, they stopped at “flash”, due to the very high erasure rate. But if you think that after this Toshiba rushed to introduce memory into production and watch how money is dropped to them - you do not know how large corporations usually refer to internal ideas. It turns out that Masuok's bosses ordered him to, in general, erase this idea.
He naturally did not do that. In 1984, he presented work on memory design at the IEEE International Electron Devices Meeting. This prompted Intel to develop a type of flash memory based on NOR logic gates. In 1988, the company introduced a 256 kbit chip, which has been used in transportation, computers, and other common devices, which has opened up a good niche for Intel.
That was enough for Toshiba to finally decide to market the Masuok invention. Its flash chip was based on NAND technology, with a high recording density, but difficult to manufacture. Success came in 1989, when the first NAND flash hit the market. As Masuoka predicted, prices continued to fall.
In the late 1990s, flash photography was promoted by digital photography, and Toshiba became one of the largest players in the multi-billion dollar market. At the same time, Masuok's relationship with other directors deteriorated, and he left the company. Later, he sued a lawsuit demanding to unfasten part of his profits, and won.
Now NAND flash is a key component of any gadget: cell phones, cameras, music players, and, of course, USB flash drives that techies like to wear around their necks. “Mine was 4 gigabytes,” says Masuoka.