SN74HC244DW

Series:	74HC
Packaging:	Tube
Part Status:	Active
Logic Type:	Buffer, Non-Inverting
Number of Elements:	2
Number of Bits per Element:	4
Input Type:	--
Output Type:	3-State
Current - Output High, Low:	7.8mA, 7.8mA
Voltage - Supply:	2 V ~ 6 V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	20-SOIC (0.295", 7.50mm Width)
Supplier Device Package:	20-SOIC
Base Part Number:	74HC244

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SN74HC244DW Application Field and Working Principle

Logic - Buffers, Drivers, Receivers, Transceivers

The SN74HC244DW is a logic-level buffer used in a variety of applications where isolation of signals is necessary. This device has two separate signal channels which reduces cross talk and signal interference. It is useful for communication and power control applications due to its ability to control voltage and current levels between two systems.The SN74HC244DW operates on a single supply and has an operational range between 2.0V to 5.5V. It provides a high degree of flexibility for interfacing and transmits data currents up to 45mA. It can be configured in one of two directions; certain channel meaning the output from the chip is either non-inverting or inverting. The SN74HC244DW is a 9-pin integrated circuit that requires no external components and works by way of CMOS logic through its internal p-channel and n-channel MOSFETs. The SN74HC244DW contains an enhanced SchmittTrigger input stage, which makes it suitable for a wide range of applications due to its high noise immunity and excellent input noise rejection. The SN74HC244DW contains four open-collector outputs, three open-drain outputs, and two low-power Schmitt-Trigger inputs. The four open-collector outputs allows for simultaneous direction control of multiple channels, while the open-drain outputs are used for both driving and controlling signals. The low-power Schmitt-Trigger inputs make the SN74HC244DW ideal for applications with higher input noise.The SN74HC244DW contains a high-speed output stage with a very low output off-state resistance that allows for higher power dissipation at larger supply voltages. This integrated circuit also features a low power consumption, and ESD and latch-up protection. The SN74HC244DW is an ideal device for applications where an isolated signal is required, such as for switching signals for power control applications and to ensure noise isolation.It is often used as a level translator in high-speed communications interfaces and is integrated into many consumer electronics, such as LCD displays and digital cameras.In summary, the SN74HC244DW is a logic level buffer that provides isolation of signals, operates on a single supply, and provides a high degree of flexibility for interfacing. It is used for applications where an isolated signal is required, such as for switching signals and power control. The SN74HC244DW contains an enhanced Schmitt-Trigger input stage and four open-collector outputs for controlling/driving multiple channels. It is an ideal device for applications with a higher input noise due to its low power consumption, and ESD and latch-up protection.

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