Are you an EPFL student looking for a semester project?
Work with us on data science and visualisation projects, and deploy your project as an app on top of Graph Search.
Concept
Logic family
Summary
In computer engineering, a logic family is one of two related concepts:
A logic family of monolithic digital integrated circuit devices is a group of electronic logic gates constructed using one of several different designs, usually with compatible logic levels and power supply characteristics within a family. Many logic families were produced as individual components, each containing one or a few related basic logical functions, which could be used as "building-blocks" to create systems or as so-called "glue" to interconnect more complex integrated circuits.
A logic family may also be a set of techniques used to implement logic within VLSI integrated circuits such as central processors, memories, or other complex functions. Some such logic families use static techniques to minimize design complexity. Other such logic families, such as domino logic, use clocked dynamic techniques to minimize size, power consumption and delay.
Before the widespread use of integrated circuits, various solid-state and vacuum-tube logic systems were used but these were never as standardized and interoperable as the integrated-circuit devices. The most common logic family in modern semiconductor devices is metal–oxide–semiconductor (MOS) logic, due to low power consumption, small transistor sizes, and high transistor density.
The list of packaged building-block logic families can be divided into categories, listed here in roughly chronological order of introduction, along with their usual abbreviations:
Resistor–transistor logic (RTL)
Direct-coupled transistor logic (DCTL)
Direct-coupled unipolar transistor logic (DCUTL)
Resistor–capacitor–transistor logic (RCTL)
Emitter-coupled logic (ECL)
Positive emitter-coupled logic (PECL)
Low-voltage PECL (LVPECL)
Complementary transistor micrologic (CTuL)
Diode–transistor logic (DTL)
Complemented transistor diode logic (CTDL)
High-threshold logic (HTL)
Transistor–transistor logic (TTL)
Metal–oxide–semiconductor (MOS) logic
P-type MOS (PMOS) logic
N-type MOS (NMOS) logic
Depletion-load NMOS logic
High-density NMOS (HMOS)
Complementary MOS (CMOS) logic
Bipolar MOS (BiMOS) logic
Bipolar CMOS (BiCMOS)
Integrated injection logic (I2L)
Gunning transceiver logic (GTL)
The families (RTL, DTL, and ECL) were derived from the logic circuits used in early computers, originally implemented using discrete components.
Official source
About this result
This page is automatically generated and may contain information that is not correct, complete, up-to-date, or relevant to your search query. The same applies to every other page on this website. Please make sure to verify the information with EPFL's official sources.
Ontological neighbourhood
Related courses (15)
EE-110: Logic systems (for MT)
Ce cours couvre les fondements des systèmes numériques. Sur la base d'algèbre Booléenne et de circuitscombinatoires et séquentiels incluant les machines d'états finis, les methodes d'analyse et de syn
EE-330: Digital IC design
Digital IC Design presents the fundamentals of digital integrated circuit design. The methods and techniques aiming at the fabrication and development of digital integrated circuits are reviewed, the
EE-203(b): Electronics II
Maîtriser des blocs fonctionnels nécessitant un plus haut niveau d'abstraction. Réalisation de fonctions électroniques de haut niveau exploitant les amplificateurs opérationnels.
Related publications (176)