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Digital electronics

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computer hardware
physical components of a computer
central processing unit
central computer component that executes instructions
integrated circuit
electronic circuit formed on a small, flat piece of semiconductor material
microprocessor
A microprocessor is a computer processor for which the data processing logic and control is included on a single integrated circuit (IC), or a small number of ICs. The microprocessor contains the arithmetic, logic, and control circuitry required to perform the functions of a computer's central processing unit (CPU). The IC is capable of interpreting and executing program instructions and performing arithmetic operations. The microprocessor is a multipurpose, clock-driven, register-based, digital integrated circuit that accepts binary data as input, processes it according to instructions stored
bus
system that transfers data between components within a computer
graphics processing unit
specialized electronic circuit; graphics accelerator
flip-flop
circuit that has two stable states and can be used to store state information
relay
thumb|A relay thumb|Electromechanical relay principle thumb|Electromechanical relay schematic showing a control coil, four pairs of normally open and one pair of normally closed contacts thumb|An automotive-style miniature relay with the dust cover taken off
computer memory
physical device used to store information for immediate use in a digital electronic device
digital electronics
electronic circuits representing signals by discrete bands of analog levels
CMOS
thumb|CMOS inverter (a Inverter (logic gate)|NOT logic gate)
digital signal processing
mathematical signal manipulation by computers
AND gate
logic gate that outputs if both inputs are on
processor
electrical component for processing data
OR gate
Digital logic gate type
transistor–transistor logic
class of digital circuits built from bipolar junction transistors (BJTs) and resistors; transistors perform both the logic function (e.g. AND) and the amplifying function
instruction control unit
component of a computer's CPU
encoder
encoder in digital electronics, a one-hot to binary converter
glitch
thumb|upright=1.3|A railway station display affected by a visual glitch, corrupting some of the text
XOR gate
logic gate
sequential logic
type of logic circuit
combinational logic
type of digital logic which is implemented by boolean circuits
7400 series
series of transistor–transistor logic integrated circuits
logic analyzer
electronic test instrument that measures multiple signals from a circuit
semiconductor memory
data storage device
4000 series integrated circuits
Family of integrated circuits
glitch art
practice of using digital or analog errors for aesthetic purposes
logic synthesis
Converting abstract operations into digital logic systems
one-hot
{| class="wikitable" border="1" align="right" |- ! Decimal !! Binary !! Unary !! One-hot |- | 0 || 000 || 00000000 || 00000001 |- | 1 || 001 || 00000001 || 00000010 |- | 2 || 010 || 00000011 || 00000100 |- | 3 || 011 || 00000111 || 00001000 |- | 4 || 100 || 00001111 || 00010000 |- | 5 || 101 || 00011111 || 00100000 |- | 6 || 110 || 00111111 || 01000000 |- | 7 || 111 || 01111111 || 10000000 |}
delay line memory
sequential-access refreshable memory, in which amplifier and a pulse shaper are connected between the output of the delay line and the input, creating a loop that maintains the signal
frequency counter
measuring device that determines the basic frequency of the alternating component of an electrical voltage
programmable interrupt controller
device that is used to combine several sources of interrupt onto one or more CPU lines, while allowing priority levels to be assigned to its interrupt outputs
in-system programming
writing firmware to an embedded device while it's installed in a system
three-state logic
Buffer in digital electronics
memory cell
elementary data-storing circuit within an electronically addressed computer memory/storage device
bit slicing
computer technique
register file
array of processor registers in a central processing unit; usually implemented by fast static RAMs with multiple ports
processability
product design characteristic reflecting its ease of manufacture, maintenance or (and) repair
voltage regulator module
buck converter that provides a microprocessor with the appropriate supply voltage
bistability
thumb|upright=1.4|A graph of the potential energy of a bistable system; it has two local minima x_1 and x_2. A surface shaped like this with two "low points" can act as a bistable system; a ball resting on the surface can only be stable at those two positions, such as balls marked "1" and "2". Between the two is a local maximum x_3. A ball located at this point, ball 3, is in equilibrium but unstable; the slightest disturbance will cause it to move to one of the stable points. thumb|upright=0.8|Light switch, a bistable mechanism
double data rate
method of computer bus operation that transfers data on both the rising and falling edges of the clock signal
asynchronous serial communication
form of serial communication lacking synchronization control signals
signal edge
in electronics, a transition of a digital signal from low to high or high to low
reversible computing
model of computing
Datapath
A data path is a collection of functional units such as arithmetic logic units (ALUs) or multipliers that perform data processing operations, registers, and buses. Along with the control unit it composes the central processing unit (CPU). A larger data path can be made by joining multiple data paths using multiplexers.
hazard
undesirable effect in digital logic
SIMATIC
SIMATIC is a series of programmable logic controller and automation systems, developed by Siemens. Introduced in 1958, the series has gone through four major generations, the latest being the SIMATIC S7 generation. The series is intended for industrial automation and production.
leading zero
any 0 digit that comes before the first nonzero digit in a number string in positional notation
reconfigurable computing
computer architecture that can be reprogrammed
antistatic bag
type of packaging for electronics and static-sensitive devices
logic level
one of a finite number of states that a signal can have
Antifuse
An antifuse is an electrical device that performs the opposite function to a fuse. Whereas a fuse starts with a low resistance and is designed to permanently break or open an electrically conductive path (typically when the current through the path exceeds a specified limit), an antifuse starts with a high resistance—an open circuit—and programming it converts it into a permanent electrically conductive path (typically when the voltage across the antifuse exceeds a certain level). This technology has many applications. Antifuses are best known for their use in mini-light (or miniature) style l
numerically controlled oscillator
digital signal generator creating a synchronous (clocked), discrete-time, discrete-valued representation of a waveform, usually sinusoidal
Logic probe
Handheld electronic test equipment
list of 7400 series integrated circuits
List of integrated circuits belonging to the 74xx family.
signal integrity
electronic circuit tools and techniques that ensure electrical signals are of sufficient quality
ModelSim
ModelSim is a multi-language environment by Siemens (previously developed by Mentor Graphics,) for simulation of hardware description languages such as VHDL, Verilog and SystemC, and includes a built-in C debugger. ModelSim can be used independently, or in conjunction with Intel Quartus Prime, PSIM, Xilinx ISE or Xilinx Vivado. Simulation is performed using the graphical user interface (GUI), or automatically using scripts.
single-event upset
change of state caused by one single ionizing particle (ion, electron, photon...) striking a sensitive node in a micro-electronic device, such as in a microprocessor, semiconductor memory, or power transistor
HCMOS
HCMOS ("high-speed CMOS") is the set of specifications for electrical ratings and characteristics, forming the 74HC00 family, a part of the 7400 series of integrated circuits.
Quad Data Rate
communication signaling technique