Compared to contemporary ECL circuits, TTL uses less power and has easier design rules but is substantially slower.

The Cray-1 used only four different IC types, an ECL dual 5-4 NOR gate ( one 5-input, and one 4-input, each with differential output ), another slower MECL 10K 5-4 NOR gate used for address fanout, a 16 × 4-bit high speed ( 6 ns ) static RAM ( SRAM ) used for registers, and a 1, 024 × 1-bit 50 ns SRAM used for the main memory.

Each signal produced by the ECL circuitry was a differential pair, so the signals were balanced.

A variation of ECL in which all signal paths and gate inputs are differential is known as differential current switch ( DCS ) logic.

Yourke's current switch, also known as ECL, was a differential amplifier, and the input logic levels were different from the output logic levels.

This mode is used in differential switches and ECL gates.

This situation is typical for over-driven transistor differential amplifiers and ECL gates.

Differential pairs are generally used to carry differential or semi-differential signals, such as high-speed digital serial interfaces including LVDS differential ECL, PECL, LVPECL, SATA, Hypertransport, Ethernet over twisted pair, Serial Digital Interface, RS-422, RS-485, USB, Serial ATA, TMDS, FireWire, and HDMI etc.

Logic used 3-level ECL circuits ( single-ended for control logic, and differential for datapaths ) while RAM structures used CMOS.

It added the ability to simulate ECL and PECL buffers as well as differential lines.

ECL then compiles Lisp code to C, compiles the C code with a C compiler and can then load the resulting machine code.

* DECSYSTEM-2040: ECL processor with up to 1024 kilowords of magnetic core RAM

* DECSYSTEM-2050: ECL processor with 2K words of cache and up to 1024 kilowords of RAM

* DECSYSTEM-2060: ECL processor with 2k words of cache and up to 4096 kilowords of solid state memory

Ecole Centrale de Lyon, or as sometimes referred to ECL, has strong ties with top institutions in Europe including Imperial College London and Darmstadt University of Technology.

Contractualised with CNRS and three establishments in Lyon ( ECL, INSA, UCBL ), Ampere has over 160 employees

The ECL also has a Ph. D. program for students with a master's level.

The concept, proposed in 1958, pioneered Emitter-coupled logic ( ECL ) circuitry, pipelining, and transistor memory with a design goal of 100x speedup compared to ILLIAC I.

It was built from three boards of ECL gate array chips ( with TTL pinout ).

The high power consumption associated with ECL has meant that it has been used mainly when high speed is a vital requirement.

Re-implementation of the Elbrus 1 architecture with faster ECL chips.

In 2004 New Zealand Post announced the formation of Express Couriers Ltd ( ECL ), a 50: 50 joint venture with DHL.

The X-MP-succeeding Cray Y-MP series was announced in 1988 ; it also had a new design, replacing the 16-gate ECL gate arrays with a more compact VLSI gate array with larger circuit boards.

* Kansas City Monarchs ( NNL ) defeats Hilldale ( ECL ) 5 games to 4 with 1 tie in the first official Negro League World Series.

* The Eastern Colored League ( ECL ) plays its first season with six teams: Hilldale Daisies, Brooklyn Royal Giants, Cuban Stars ( East ), New York Lincoln Giants, Atlantic City Bacharach Giants, and Baltimore Black Sox.

Raleigh " Biz " Mackey is the batting leader in the ECL with Jesse " Nip " Winters leading in most pitching categories.

Amdahl engineers, working with Fujitsu circuit designers, developed unique air-cooled chip designs using high speed ECL ( emitter-coupled logic ) circuit macros packaged in a chip with a heat-dissipating cooling attachment ( looked like the heat-dissipating fins on a motorcycle engine ) mounted directly to the top of the chip.

The ECL was founded in 1923 when the Philadelphia-area Hilldale Club and the Bacharach Giants of Atlantic City, both associate members of the midwest-based Negro National League ( NNL ), broke with the NNL and allied with the white promoter Nat Strong to form an east coast league.

Next winter the American Negro League was established by five former ECL teams — the Bacharach Giants of Atlantic City, the Baltimore Black Sox, the traveling Cuban Stars, the Hilldale Club of Darby, Pennsylvania, and the Lincoln Giants of New York City — along with the Homestead Grays, an important independent club, and a revived version of the Harrisburg Giants.

The Cyber 205 replaced the STAR vector pipeline with redesigned vector pipelines: both scalar and vector units utilized ECL gate array ICs and were cooled with Freon.

In ECL, the transistors are never in saturation, the input / output voltages have a small swing ( 0. 8 V ), the input impedance is high and the output resistance is low ; as a result, the transistors change states quickly, gate delays are low, and the fanout capability is high.

As the current is steered between two legs of an emitter-coupled pair, ECL is sometimes called current-steering logic ( CSL ),

a fast discriminator senses the steep onset of the avalanche current across a 50 Ω resistor and provides a digital ( CMOS, TTL, ECL, NIM ) output pulse, synchronous with the photon arrival time.

The ECL family, ECL is also known as current-mode logic ( CML ), was invented by IBM as current steering logic for use in the transistorized IBM 7030 Stretch computer, where it was implemented using discrete components.

Pakistan's Government has placed him on the " Exit Control List ( ECL )" in which he is not allowed to travel out of Pakistan and since his release, Mehmood has been out of the public eye and lives a very quiet life in Islamabad, Pakistan.

The high-performance ECL circuitry generated considerable heat, and Cray's designers spent as much effort on the design of the refrigeration system as they did on the rest of the mechanical design.

The RISC machine was to be based on ECL technology, and was one of three ECL projects Digital was undertaking at the time.

The logic circuits were based on ECL integrated circuits ( ICs ), whereas many machines of the era still relied on individual transistors or low-speed ICs.

They accomplish this by two mechanisms: Histamine released by ECL cells in the stomach is blocked from binding on parietal cell H < sub > 2 </ sub > receptors, which stimulate acid secretion ; therefore, other substances that promote acid secretion ( such as gastrin and acetylcholine ) have a reduced effect on parietal cells when the H < sub > 2 </ sub > receptors are blocked.

Two versions of the system were planned, DECwest worked on a " high-end " ECL implementation known as Crystal, while the Semiconductor Advanced Development team worked on MicroPRISM, a CMOS version.

The electronics of the first models were based on TTL circuits ; the later machines used ECL design.

Note: this diagram does not illustrate gastrin's stimulatory effect on ECL cells.

This is done both directly on the parietal cell and indirectly via binding onto CCK2 / gastrin receptors on ECL cells in the stomach, which then responds by releasing histamine, which in turn acts in a paracrine manner on parietal cells stimulating them to secrete H + ions.

The parasympathetic nervous system, via the vagus nerve, and the hormone gastrin stimulate the parietal cell to produce gastric acid, both directly acting on parietal cells and indirectly, through the stimulation of the secretion of the hormone histamine from enterochromaffine-like cells ( ECL ).

Gastrin is more important indirectly by increasing histamine synthesis in ECL cells, as gastrin has no effect on the maximum histamin-stimulated gastric acid secretion.

Present-day " building block " logic gate ICs are based on the ECL, TTL, CMOS, and BiCMOS families.

The classic example of this design is the CDC 8600, which packed four CDC 7600-like machines based on ECL logic into a 1 x 1 meter cylinder and ran them at an 8 ns cycle speed ( 125 MHz ).

Gastrin exerts a trophic effect on enterochromaffin-like cells ( ECL cells are responsible for histamine secretion ) and is hypothesized to be one mechanism to explain the malignant transformation of ECL cells into carcinoid tumors in AMAG.