What is saturated and unsaturated logic family?
Keeping this in view, what is saturated logic?
In saturated logic, the transistor is switched between the off and saturation regions, while in non-saturated logic, the transistor is switched between the off and active regions. The switching device is always an npn transistor, with pnp transistors used as loads or current sources.
Also, what is bipolar logic family? The logic families which fall under the first kind are called bipolar families, this include diode logic (DL), emitted coupled logic (ECL), resistor transistor logic (RTL), diode transistor logic (DTL), transistor transistor logic (TTL). Now the Bi-MOS logic family is the one that uses both bipolar and MOS devices.
Subsequently, one may also ask, what does logic family mean?
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. Some such logic families use static techniques to minimize design complexity.
What are the characteristics of logic families?
Main Characteristics of Logic Families are – Speed, Fan-in, Fan-out, Noise Immunity, and Power Dissipation. Let us see all the characteristics in greater detail. Speed – Speed is decided by observing the time span between applying the input to the given circuitry and change in output.
Which logic family has highest fan out?
CMOSWhat is a TTL?
Transistor-transistor logic (TTL) is a digital logic design in which bipolar transistor s act on direct-current pulses. TTL ICs usually have four-digit numbers beginning with 74 or 54. A TTL device employs transistor s with multiple emitters in gates having more than one input.Is CMOS better than TTL?
CMOS compared to TTL: CMOS circuits do not draw as much power as TTL circuits while at rest. However, CMOS power consumption increases faster with higher clock speeds than TTL does. Due to longer rise and fall times, the transmission of digital signals becomes simpler and less expensive with CMOS chips.What do you mean by CMOS?
Stands for "Complementary Metal Oxide Semiconductor." It is a technology used to produce integrated circuits. The "MOS" in CMOS refers to the transistors in a CMOS component, called MOSFETs (metal oxide semiconductor field-effect transistors).What is unipolar logic family?
Unipolar logic family MOSFET (Metal Oxide Semiconductor Field Effect Transistor) is a unipolar device, in which the current flows because of only one type of charge carriers (that is, either electrons or holes). The examples of unipolar families include PMOS, NMOS, and CMOS.What do you mean by logic gates?
Logic gates are the basic building blocks of any digital system. It is an electronic circuit having one or more than one input and only one output. The relationship between the input and the output is based on a certain logic. Based on this, logic gates are named as AND gate, OR gate, NOT gate etc.What is TTL and ECL?
These are logic familities used in IC (Integrated Circuit) designs. TTL (Transistor Transistor Logic) IC technology uses bipolar transistor as principal circuit element. ECL (Emitter Coupled Logic) IC technology uses bipolar transistors configured as differential amplifier.What is bipolar logic?
A bipolar transistor is a three-terminal semiconductor device. Under the control of one of the terminals, called the base, current can flow selectively from the collector terminal to the emitter terminal. Using transistors as electronically controlled switches is critical for building modern digital logic.What are the characteristics of logic?
Usually, a logic will contain at least: A syntax of propositions, letting us say that, for example, , , or are propositions of various systems. A deduction system, allowing us to show that particular propositions are derivable (possibly from certain hypotheses).What is noise margin in logic families?
Noise Margin. Definition: Ability of the gate to tolerate fluctuations of the voltage levels. The input and output voltage levels defined above point. The circuit's ability to tolerate noise signals is referred to as the noise immunity, a quantitative measure of which is called noise margin.What is the difference between TTL and CMOS logic?
TTL stands for Transistor-Transistor logic, and it is a classification of cohesive circuits. CMOS stands for Complimentary Metal Oxide Semiconductor. TTL circuits employ BJT's while CMOS allows a much higher density of logic functions in a single chip compared to TTL.Which is the fastest of the saturated logic families?
In Emitter Coupled Logic (ECL), The storage time is eliminated as the transistors are used in difference amplifier mode and are never driven into saturation. Is the fastest logic family and has the lowest propagation delay.Which logic family dissipates the minimum power?
Discussion Forum| Que. | The digital logic family which has minimum power dissipation is |
|---|---|
| b. | RTL |
| c. | DTL |
| d. | CMOS |
| Answer:CMOS |
Which is faster TTL or ECL?
ECL is faster than TTL and requires more power to operate.Which logic gate is fastest?
ECLWhat are the characteristics of digital IC?
Various characteristic of digital IC are:- Noise immunity.
- Fan-in and fan-out capabilities.
- Power supply requirements.
- Power dissipation per gate.
- Operating temperature range.
- Suitability for IC fabrication.
- Cost.
- Speed (propagation delay).
What is noise immunity?
Noise Immunity. the ability of an apparatus or system to perform its functions when interference (noise) is present. Noise immunity is rated according to the noise intensity at which the disruption of the equipment's functions is still within permissible limits.ncG1vNJzZmiemaOxorrYmqWsr5Wne6S7zGiuoZmkYra0edKaq66qkamypXnAp5tmrZ6orrXB0ZqrnpxdobyotcJmnZqlmaHG