74AHC259PW-Q100J

Series:	74AHC
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Logic Type:	D-Type, Addressable
Circuit:	1 x 3:8
Output Type:	Standard
Voltage - Supply:	2 V ~ 5.5 V
Independent Circuits:	1
Delay Time - Propagation:	10ps
Current - Output High, Low:	8mA, 8mA
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	16-TSSOP (0.173", 4.40mm Width)
Supplier Device Package:	16-TSSOP
Base Part Number:	74AHC259

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Introduction

The 74AHC259PW-Q100J is an 8-bit bidirectional transceiver with 3-state outputs designed for asynchronous 2-way communication between two buses. Its logic structure and built-in 3-state logic enables two independent buses to easily exchange data. This makes the 74AHC259PW-Q100J an excellent choice for bus-oriented and low-power applications. Additionally, the generous operating voltage range and low system power requirements mean it is suitable for a variety of situations, from digital applications to analog designs.

Application Field

The 74AHC259PW-Q100J is an ideal choice when it comes to synchronizing and managing data flow between different system buses. Common use cases include digital devices such as personal computers, Bluetooth systems, multimedia controllers, digital audio systems and infotainment. With the ability to handle a wide range of operating voltages, from 2.7 V to 5.5 V, it is also a great solution for embedded designs, such as automotive and industrial applications, where data needs to be transferred between low-power components. Its bidirectional feature adds to its versatiliy, as it allows its two buses to be used for either transmitting or receiving data.

Working Principle

The 74AHC259PW-Q100J features 2-way asynchronous data transfer, allowing two independent buses to exchange data without the need for a clock signal. Each bus can operate in Half-Duplex mode, which requires the buses to be connected together with a common ground and then transfer data in either direction. This configuration allows both buses to act as either transmitter or receiver depending on the desired mode of operation.The 74AHC259PW-Q100J also contains a built-in 3-state logic which enables data to be held in a logic-high state, allowing it to be transferred without the need for a clock signal. This makes the 74AHC259PW-Q100J an especially useful component in systems where the data transmission is performed at different rates. Additionally, since the data transfer is asynchronous, no precise timing is required, allowing for greater flexibility when it comes to system configuration and data integrity.

Conclusion

The 74AHC259PW-Q100J is a powerful and reliable component for handling data synchronisation and transfer in complex system designs. It\'s versatile range of applications, low power requirements, and built-in 3-state logic makes it a top choice when it comes to asynchronous system-to-system data communication. Whether the application requires data to be transmitted or received, the 74AHC259PW-Q100J is a versatile component that provides reliable and efficient data transfer.

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