HEF4044BT,652

Series:	4000B
Packaging:	Tube
Part Status:	Obsolete
Logic Type:	S-R Latch
Circuit:	4:4
Output Type:	Tri-State
Voltage - Supply:	3 V ~ 15 V
Independent Circuits:	4
Delay Time - Propagation:	30ns
Current - Output High, Low:	3mA, 3mA
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	16-SO
Base Part Number:	4044

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Logic - Latches

The HEF4044BT,652 is a logic-latching device designed for use in a wide range of applications requiring exacting control and reliable operation. This device act as an analog switch to enable efficient switching between logic states or power levels in an opto-logic circuit, or even in other switching applications.The device features high ON-OFF current ratios, fast data access times and long hold times. It also offers low control voltage and power consumption levels as well as low standby power consumption. The HEF4044BT,652 is highly versatile and can be structured to provide a variety of switching functions including pre-determined time delays, frequency-adjustment and pulsed or cyclic output signals. The HEF4044BT,652 is composed of a single CMOS logic-latching device, the structure of which is formed by four interconnected N-channel MOSFETS. When the signal of this device is transmitted, the 4 MOSFETS gate switches between two different states, allowing for switching of data and logical operations.In terms of the working principle, the HEF4044BT,652 is based on an Interchangeable-Latch principle. A single logic-latching device constituted by 4 interconnected N-channel MOSFETS functions as a buffer between the logic circuit and the output pins. The two opposite states at inputs of the logic-latch cause two inverse logic-outputs that control the logic-latch circuit. For example, when a rising edge is applied to the control input, the outputs of this circuit is pulled low and the data inputs become latched until the falling edge applied to the control input. This process is the same for both high-to-low and low-to-high transitions.The application fields of the HEF4044BT,652 logic-latch can be found among a wide range of applications related to analog switching, such as high-speed pulse generation, time delay and frequency adjustment, as well as driving circuits in motor control, robotics or control systems in industry and consumer goods. In power electronics, this device is particularly useful in applications where narrow pulse width and extremely fast switching are desired, while maintaining a small power dissipation. The HEF4044BT,652 can also be used in single voltage level logic switching, combining high speed switching and low power levels.In applications requiring power levels above the current limit, the device can be used in conjunction with a Darlington-type switching circuit, which allows it to support a significantly higher voltages and currents.The excellent characteristics of the HEF4044BT,652 circuitry, such as low power consumption, short switching times and narrow pulse widths, make it an ideal choice for many modern logic applications. Its high-speed, low-power performance combined with its low cost and compact form factor make it an ideal choice for many application areas.

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