74HC245N,652

Series:	74HC
Packaging:	Tube
Part Status:	Obsolete
Logic Type:	Transceiver, Non-Inverting
Number of Elements:	1
Number of Bits per Element:	8
Input Type:	--
Output Type:	3-State
Current - Output High, Low:	7.8mA, 7.8mA
Voltage - Supply:	2 V ~ 6 V
Operating Temperature:	-40°C ~ 125°C (TA)
Mounting Type:	Through Hole
Package / Case:	20-DIP (0.300", 7.62mm)
Supplier Device Package:	20-DIP
Base Part Number:	74HC245

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The 74HC245N is a high-speed CMOS logic device from the 74HC series, part of the 74HCxx family of logic chips manufactured by NXP Semiconductors. It is used for logic buffers, drivers, receivers, and transceivers. The 74HC245N is a high-performance, low-power CMOS logic device that offers a high-speed, low-power alternative to other standard CMOS ICs.The 74HC245N is an 8-bit octal bus receiver that can be used to interface between two buses in a system. It has two 3-state outputs that are used to send data between two buses with different voltage levels. It can also be used in digital circuits, analog circuits, and mixed-signal integrated circuits.The 74HC245N is designed to be used in applications that require the transmission and the reception of digital data. It has an open-drain output for sinking current and providing an output of logic 1\'s and 0\'s. The open-drain output allows a connection to a wide variety of digital and analog circuits without the need for additional protection circuitry.Working PrincipleThe 74HC245N buffer and transceiver operates on two buses: a source bus and a destination bus. The source bus is connected to the data input of the transceiver, and the destination bus is connected to the data output. When the device is enabled, data is transferred from the source bus to the destination bus.The data is buffered through a pair of logic gates before being transferred to the destination bus. The logic gates provide a reliable, low-voltage transfer of the data.The data is transferred sequentially, beginning with the least-significant bit (LSB) and ending with the most-significant bit (MSB). When the transfer is complete, the device asserts an active-low ripple-carry-clear signal, which is a signal that signals that the transfer is complete.Application FieldThe 74HC245N buffer and transceiver is a versatile device that is used in a variety of applications, including digital and analog circuits, as well as mixed-signal integrated circuits. It can be used in applications that require the transmission of data between different buses or different logic levels.For example, the device is often used in microprocessor-based systems, where it is used to interface between data buses with different logic levels. The transceiver can also be used to interface between logic chips with different logic levels, such as a 3.3V logic chip with a 5V logic chip.The 74HC245N is also used in applications that require a higher speed transfer of data. The high-speed, low-power alternative to standard CMOS ICs make it an ideal choice for applications that require fast data transfer rates.ConclusionThe 74HC245N is a versatile logic device that is used in a variety of applications. It is used for logic buffers, drivers, receivers, and transceivers and can be used in applications that require the transmission of data between different buses or logic levels. It is a high-performance, low-power CMOS logic device that provides a high-speed, low-power alternative to other standard CMOS ICs. Its open-drain output allows a connection to a wide variety of digital and analog circuits without the need for additional protection circuitry.

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