STMicroelectronics 74VCXHQ163245TTR - Bus Transceiver

The 74VCXHQ163245TTR from STMicroelectronics is a high-speed, low-voltage, CMOS 16-bit dual-supply bus transceiver with 3-state outputs. This advanced integrated circuit is designed to be used in applications where high-speed data transfer and low-power consumption are paramount. The device is part of the VCX family, which is known for its versatility and performance in interfacing between different voltage domains in mixed-voltage systems.

This transceiver allows bidirectional communication between two buses with different voltage levels. The A port is designed to track the VCCA level, which ranges from 1.2V to 3.6V, while the B port tracks the VCCB level, which can range from 2.3V to 3.6V. This feature makes the 74VCXHQ163245TTR particularly suitable for down-translation or up-translation between 1.8V, 2.5V, and 3.3V buses in a mixed-voltage environment.

The device offers high-speed operation with a maximum data rate capability and features balanced drive for reduced noise generation. The bus hold on data inputs eliminates the need for external pull-up or pull-down resistors, simplifying the design and reducing component count. The 74VCXHQ163245TTR also features 3-state outputs that can be put in a high-impedance state, effectively disconnecting the transceiver from the bus, which is useful in multiplexing applications or when the bus needs to be shared.

For enhanced reliability and protection, the 74VCXHQ163245TTR incorporates power-off protection on inputs and outputs, ensuring that the device remains unaffected when powered down. Additionally, the device is equipped with latch-up performance that exceeds 100mA per JESD 78, Class II, providing robustness against latch-up phenomena.

Offered in a TSSOP48 package, the 74VCXHQ163245TTR is designed for surface mount technology, making it suitable for high-density PCB designs. Its low power dissipation and high noise immunity ensure that the transceiver performs reliably in a variety of digital applications, including computing, networking, data communication, and consumer electronics.

Overall, the STMicroelectronics 74VCXHQ163245TTR is a high-quality, versatile solution for seamless data transfer between different voltage domains, providing designers with a robust and efficient interface component.