SN74ACT14D

Current - Output High, Low:	24mA, 24mA
Base Part Number:	74ACT14
Package / Case:	14-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	14-SOIC
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Max Propagation Delay @ V, Max CL:	11.5ns @ 5V, 50pF
Logic Level - High:	1.9 V ~ 2.1 V
Logic Level - Low:	0.5 V ~ 0.6 V
Series:	74ACT
Current - Quiescent (Max):	2µA
Voltage - Supply:	4.5 V ~ 5.5 V
Features:	Schmitt Trigger
Number of Inputs:	6
Number of Circuits:	6
Logic Type:	Inverter
Part Status:	Active
Packaging:	Tube

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IntroductionThe SN74ACT14D is a high-speed, low-power CMOS logic gate and inverter. It is designed to provide logic functions of low voltage (LV) and high voltage (HV) logic. The SN74ACT14D is an ideal choice for designs where power saving is essential.Types of Logic Gates and InvertersLogic gates and inverters are used to implement various digital logical operations, typically in CMOS technology. These devices are usually classified according to their inputs and outputs: open collector, tri-state, Schmitt-Trigger, and TTL (transistor-transistor logic) gates and inverters.Open Collector Gates and InvertersOpen collector gates and inverters are used to control a signal by “opening” or “closing” the collector circuit. This type of gate and inverter typically have an input and an output, but no pull-up resistor or other elements between them. An open collector circuit outputs a “low” (or “logic 0”) when the input is “high” (or “logic 1”). This type of gate and inverter is generally used in situations where a certain number of bits need to be encoded into a signal and then decoded again. Open collector gates and inverters are sometimes used to limit current through the gate/inverter.Tri-State Gates and InvertersTri-State gates and inverters, also known as 3-state logic, are used to control a signal from either of three possible output states: high, low, and disabled. The output of a tri-state gate or inverter is “high” when its input is “high”, and “low” when the input is “low”. When the input is enabled and the output is “inactive”, the output of the gate is “floating” or indeterminate. Tri-state gates and inverters are typically used to reduce power consumption in a circuit.Schmitt-Trigger Gates and InvertersSchmitt-Trigger gates and inverters are logic circuits that are designed to prevent the unwanted effects of noise in digital logic signals. This type of gate and inverter typically have a temperature-stable hysteresis voltage, which can be set to provide better noise immunity. When the input to the Schmitt-Trigger gate and inverter is low, the output is low. As the input voltage increases, the output goes high. The voltage level at which the output of the Schmitt-Trigger gate and inverter switches from low to high is known as the “threshold voltage”.TTL Gates and InvertersTTL (Transistor-Transistor Logic) gates and inverters are the most common type of digital logic subsystem. These types of gates and inverters use bipolar transistors and are generally used for low-power, low-speed applications. TTL gates and inverters can also be used to interface between digital circuits and analog ones.SN74ACT14DThe SN74ACT14D is a high-speed, low-power CMOS logic gate and inverter. It is designed for use in applications that require the speed of the earlier TTL logic but with the lower power consumption of CMOS. The SN74ACT14D is designed to be compatible with either 10V or 20V logic levels. It has an open collector output and can provide high-noise immunity. The gate and inverter have an input and output impedance of 7.5k ohms and 750 ohms, respectively. It has an input capability of 10mA and an output capability of 12mA.ConclusionThe SN74ACT14D is an ideal choice for low-voltage and high-voltage logic applications. It has an open collector output and can provide high-noise immunity while consuming low power. It is also compatible with either 10V or 20V logic levels. The SN74ACT14D can be used to reduce power consumption in a circuit or to interface digital circuits with analog ones.

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