Diode–transistor logic (DTL) is a class of digital circuits that is the direct ancestor of transistor–transistor logic. It is called so because the logic...

"transistor"), as opposed to earlier resistor–transistor logic (RTL) and diode–transistor logic (DTL). TTL integrated circuits (ICs) were widely used in applications...

An active device (vacuum tubes in early computers, then transistors in diode–transistor logic) is additionally required to provide logical inversion (NOT)...

junction transistors (BJTs) as switching devices. RTL is the earliest class of transistorized digital logic circuit; it was succeeded by diode–transistor logic...

Additionally, just like in diode–transistor logic, transistor–transistor logic, emitter-coupled logic etc., the asymmetric input logic levels make NMOS and...

Complemented transistor diode logic (CTDL) High-threshold logic (HTL) Transistor–transistor logic (TTL) Metal–oxide–semiconductor (MOS) logic P-type MOS...

comparison). The primary way of building logic gates uses diodes or transistors acting as electronic switches. Today, most logic gates are made from MOSFETs...

sensitive transistors. Specialized diodes are used to protect from over-voltages at higher power (see Diode types above). Diode-resistor logic constructs...

using a single transistor. Multiple-emitter transistors replace the diodes of diode–transistor logic (DTL) to make transistor–transistor logic (TTL), and...

point-contact transistor, starting with a germanium point-contact diode as a source of material (even a burnt-out diode could be used; and the transistor could...

A Schottky transistor is a combination of a transistor and a Schottky diode that prevents the transistor from saturating by diverting the excessive input...

electronics a diode-OR circuit is used to derive a simple Boolean logic function. This kind of circuit was once very common in diode–transistor logic but has...

in both on- and off-line modes. Weighing 65 lb, the machine used diode–transistor logic instead of single transistors. Jerry Proc's page on the BID 770...

field-effect transistor (MOSFET) fabrication process that uses complementary and symmetrical pairs of p-type and n-type MOSFETs for logic functions. CMOS...

Eccles discovered the crystal diode oscillator. Physicist Julius Edgar Lilienfeld filed a patent for a field-effect transistor (FET) in Canada in 1925, intended...

a switching bipolar junction transistor (BJT) by applying a nonlinear negative feedback through various kinds of diodes. The reason for slow turn-off...

High-threshold logic (HTL), also known as low-speed logic (LSL) or high-level logic (HLL), is a variant of diode–transistor logic used in environments...

collector–emitter doping are what differentiates a bipolar transistor from two separate diodes connected in series. The collector–emitter current can be...

programmable logic array chips. The "blank" PLA from the chip manufacturer came with a diode matrix or transistor matrix with a diode (or transistor) at every...

ran cooler, and used less power, but had a very low fan-out of 3. Diode–transistor logic improved the fan-out up to about 7, and reduced the power. Some...

metal–oxide–semiconductor field-effect transistor (MOSFET, MOS-FET, or MOS FET) is a type of field-effect transistor (FET), most commonly fabricated by the...

power for the Darlington transistor over a single transistor. The increased low output level can cause troubles when TTL logic circuits are driven. Another...

components to build logic function blocks in resistor–transistor logic (RTL) or diode–transistor logic (DTL) technology. The system was originally conceived...

LED (left), photo transistor (right) There are many ways to draw a single-phase bridge rectifier symbol. Some show the internal diode circuit, some don't...

emitter-coupled logic (ECL) is a high-speed integrated circuit bipolar transistor logic family. ECL uses an overdriven bipolar junction transistor (BJT) differential...

order of 100,000 transistors. Early experimental solid-state computers had as few as 130 transistors but used large amounts of diode logic. The first carbon...

priced at $18,500 (equivalent to about $178,900 in 2023). It uses diode–transistor logic packaged on flip chip cards in a machine about the size of a small...

was to develop a new type of "4-layer diode" that would work faster and have more uses than then-current transistors. At first he attempted to hire some...

Schottky diode (named after the German physicist Walter H. Schottky), also known as Schottky barrier diode or hot-carrier diode, is a semiconductor diode formed...

The Bell Lab's work on the transistor emerged from war-time efforts to produce extremely pure germanium "crystal" mixer diodes, used in radar units as a...