MAX3301EETJ+T

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Introduction

The MAX3301EETJ+T is an integrated low-power CMOS level-shifter and universal serial bus (USB) transceiver that is used to interface communication between USB systems and other logic systems. This device provides 5V tolerant inputs as well as an integrated simultaneous bidirectional low-current level shifter to ensure proper signal levels between the USB transceiver and the logic system.

Application Field

The MAX3301EETJ+T is designed to interface communication between Universal Serial Bus (USB) systems and other logic systems. This device is ideal for applications such as low-speed USB peripherals, RS-232 to USB converter, remote keyboard/mouse transceiver and remote control systems. This device is suitable for applications where a combination of low-power consumption and low-voltage operation are required.

Working Principle

The MAX3301EETJ+T is a low-power CMOS level-shifter and universal serial bus (USB) transceiver which provides 5V tolerant inputs as well as an integrated simultaneous bidirectional low-current level shifter to ensure proper signal levels between the USB transceiver and the logic system. This device features an active low-speed USB transceiver with data rate up to 1.5Mbit/s (full-speed only), and USB supports for dual-role ports, which enables this device to perform both the USB host and device functions. In addition, this device supports a low-power sleep mode and power-on detection.

The USB data pins D+ and D- act as bidirectional data pins for communication between the MAX3301EETJ+T device and the host or device. The VBUS pin is used as a power supply for downstream devices, and it remains idle when not connected to a host or device. The EOP (End-of-Packet) pin is used to indicate the end of data transfer on the data lines. The INTx pin is used to interrupt the host or device when there is a transfer of data or a change in the USB bus state.

The internal level shifter makes use of a built-in Voltage Regulating Transformer (VRT) to translate the logic voltage levels between the USB transceiver and logic system, resulting in low power dissipation and superior performance. In addition, this device also features automatic power sequencing, and provides power on-off sequencing control to ensure that the USB transceiver and the logic system will enter a low-power state properly.

Conclusion

The MAX3301EETJ+T is a low-power CMOS level-shifter and universal serial bus (USB) transceiver which provides 5V tolerant inputs as well as an integrated simultaneous bidirectional low-current level shifter to ensure proper signal levels between the USB transceiver and the logic system. This device is designed to interface communication between Universal Serial Bus (USB) systems and other logic systems and is suitable for applications where a combination of low-power consumption and low-voltage operation are required.

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