TUSB2046BVF

The TUSB2046BVF from Texas Instruments is a 3.3-V CMOS hub device designed to provide one upstream port and four downstream ports, fully compliant with the Universal Serial Bus (USB) specification as a full-speed hub. This controller integrates USB transceivers for all ports and supports both full-speed and low-speed operations on downstream ports.

Key electrical specifications include a supply voltage range of 3V to 3.6V and a typical operating current of 40mA. The device supports USB 2.0 standards and can operate using a 6-MHz crystal input or a 48-MHz input clock. It also supports self-powered and bus-powered modes, with power switching and overcurrent reporting capabilities.

Packaged in a 32-pin LQFP (7x7mm) with a 0.8mm pitch, the TUSB2046BVF is suitable for applications requiring a compact USB hub solution. The operating temperature range is from 0°C to 70°C. The design utilizes a state machine implementation, eliminating the need for firmware programming and ensuring seamless operation with standard operating system USB stacks.

This hub controller is designed for ease of use, with features like push-pull outputs for PWRON and noise filtering on OVRCUR. Its package pinout is designed to allow for a 2-layer PCB, simplifying board design. The device also supports suspend and resume operations, as well as programmable Vendor ID and Product ID via an external serial EEPROM.