74ALVC244PW,112

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74ALVC244PW,112 is a universal logic family of logic-buffers, drivers, receivers, transceivers. It is part of the family groups of the standard logic functions from Texas Instrument’s popular Advanced Low Voltage (ALV) series.

Application Field

74ALVC244PW,112 is primarily used for connecting bi-directional data communication interface between various kinds of equipment. It is also used for controlling communication lines in applications like ISDN, DDR2/3/4, PCi/PCi express, FBD, and others. It also finds its application in data communications, master/slave synchronization, control signaling, bypass switching, analog signal conditioning and etc.

Working Principle

74ALVC244PW,112 works on the concept of high speed logic family and Universal Serial Bus (USB) functions. It provides high performance data transmission by using low Vcc supply and low power. It has two 3-state buffer outputs and four bus fully occupied. It supports full duplex data communications with a pin compatible bus structure, enabling isochronous data transfers and packet sizes of up to 8 bytes. The device utilizes input and output flip-flops for data buffering and control signaling.

This device is also used for bidirectional data transfers, inputs and outputs for digital logic, and for logic levels of up to 3.3V, This device also adopts advanced low voltage and high speed logic circuit. It ensures high speed operation at low voltage. This device supports power saving and low EMI noises.

In terms of basic operation and features, the 74ALVC244PW,112 utilizes two 3-state buffer outputs to provide data communication up to a maximum of 8 bytes. The device also provides essential support for packet-based data communications, by enabling an independent buffering of the packet, allowing for data reception or transmission without interference or collisions from other data sources, as well as providing support for isochronous data transfers.

The 74ALVC244PW,112 also includes 8 double ended input/output pins and one single ended output pin – allowing for a variety of communication needs, and providing flexibility for system designers. The device also supports two primary features, Automatic Handshaking and Flow Control, which enable a higher level of data transmission and reception.

The functionality of the 74ALVC244PW,112 is also enhanced with additional features such as Input Threshold Voltage (IVT) adjustment, Input and Output Pin Current Limiting, and VCC Undervoltage Protection. IVT adjustment allows for the input pins to be adjusted to match different logic levels, which helps to reduce errors in communication. Input and Output Pin Current Limiting helps to protect the device from high levels of current, while the VCC Undervoltage Protection helps to protect the device from situations where the voltage drops too low.

Conclusion

The 74ALVC244PW,112 is part of the family group of the standard logic functions from Texas Instrument’s popular Advanced Low Voltage (ALV) series. The device is mainly used for connecting bi-directional data communication interfaces between different types of equipment, and is also used for controlling communications lines in applications such as ISDN, DDR2/3/4, PCi/PCi express, FBD, and others. It supports full duplex data transmission, isochronous data transfers, and packet sizes of up to 8 bytes. It also provides essential support for Automatic Handshaking and Flow Control.

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