74V2T125STR

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The 74V2T125STR is a two channel logic buffer that provides logic level translation and improved fan-out over the standard buffer. It is widely used to drive a number of different logic levels and transitions in Electronic Formats for a wide range of applications.

Applications:

• Used in high-performance data transmission applications, such as Ethernet and Fibre Channel.
• Used in opto-isolation applications.
• Used for logic level-shifting applications in low-voltage applications.
• Used in disk drive interface applications.
• Used in 3.3V to 2.5V voltage-level shift applications.

Working Principle:

The 74V2T125STR operates on a two-channel differential working logic, where the input voltage is different in two complementary input signals. The active low input is called a logic low, while the active high input is called a logic high. The two output channels transparently receive the state of the two input channels and they respectively provide a low-level open-drain or an internal pull-up. In this way, the devices can buffer, convert and level shift between different logic families such as special LVC, 3.3-V, 2.5-V, 1.8-V, and 1.5-V voltage level.

The 74V2T125STR ensures a low-power device operation, thanks to its power-saving feature. During startup and power cycling, the device will automatically shift to a lower voltage state, dramatically cutting power usage even when data transmission is not active. The device also supports thermal shutdown state and has built-in ESD protection, further ensuring each output has a proper low RON and wide VCC range.

The 74V2T125STR has high speed data transmission capabilities with a maximum speed of 12.5mS per channel and it has robust electrical characteristics. The device has a low output current of 5mA, low input current of 5mA, low propagation delay of 6nS (typical), and low power consumption of 3mA. Furthermore, the device has a wide operating range of -40°C to +85°C, and it is compatible with industrial-level MIL-STD-450G(E) -5V signaling.

Conclusion:

The 74V2T125STR is a two channel logic buffer that offers level shifting between a variety of logic families with lower power consumption. It is designed for a wide range of applications, including Ethernet, Fibre Channel, opto-isolation, disk drive interface, 3.3V to 2.5V voltage level shift, and more. Furthermore, the device has high speed data transmission capabilities, low output current, low input current, low propagation delay, wide operating temperature range and ESD protection. It is a versatile logic buffer that makes the transfer of data in different logic family operations easy and efficient.

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