SN74AVC8T245PW

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Modern electronic systems often work with a mix of voltage levels, relying on standard logic level shifting solutions. For the design of low-power and high-speed applications, state-of-the-art solutions like the SN74AVC8T245PW are often employed. This device is a specially designed logic level translator, symmetrically translating between two voltage levels.

Features

The SN74AVC8T245PW device is a bi-directional translation logic with under-voltage lockout for 1.8v to 5V translation. It combines an 8-bit I/O interface with a low power consumption solution, featuring a low voltage power supply of 1.8v and a high voltage power supply of 5v. The device has an operating temperature range from -40°C to +85°C and uses no explicit power-up or power-down sequencing. It also features an open drain output structure, allowing for multiple and flexible system designs, even with noisy environments.

Applications

The SN74AVC8T245PW device is widely used in a variety of applications. It is extremely popular in designs that involve a need for low-power and highly reliable logic level shifting between two voltage levels. Many of its applications involve interfacing between different industry buses, such as USB, I2C, SPI, 1-Wire, etc. It is also used in applications such as data converters, programmable logic controllers, microcontrollers and memory modules.

Working Principle

The SN74AVC8T245PW device is designed to work with the industry standard low voltage (1.8V) and high voltage (5V) levels. The device acts as a voltage level shifter, translating the logic level between the two voltage levels. This works by using dual NMOS transistors that act as switches, one being in the low voltage condition and the other in the high voltage condition. The device functions by toggling the two transistors, allowing the signals to be translated between the two levels.

The device is controlled by the voltage levels and provides automatic direction concatenation with flow control. The eight I/O ports are each tied to their individual flow control pins, allowing for flexible system design based on the data requirements. This makes the device a very powerful logic translator, capable of translating even the most complex logic operations.

Conclusion

The SN74AVC8T245PW is a powerful logic level translator, designed to interface between low voltage (1.8V) and high voltage (5V) signals. It is widely used in applications that require high speeds, low power consumption and reliable level shifting between various voltage levels. The device provides clean and efficient data flow, allowing for flexibility and scalability in a variety of system designs.

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