The part number "TUSB2046BIRHBR" belongs to Texas Instruments (TI). This specific part is a USB Hub Controller chip designed to manage multiple USB devices and enable USB connectivity.
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Package Type:
The TUSB2046BIRHBR comes in a 20-pin TSSOP (Thin Shrink Small Outline Package) form factor.
Pin Function Specifications and Circuit Principle:
Since you requested a detailed pinout of this part, with a comprehensive list of pin functions, here's an in-depth explanation of each pin.
Pin Number Pin Name Function Description 1 VCC Power supply input (3.3V) 2 GND Ground pin 3 1X USB Port 1 Output (SuperSpeed/HighSpeed/FullSpeed Data) 4 2X USB Port 2 Output (SuperSpeed/HighSpeed/FullSpeed Data) 5 3X USB Port 3 Output (SuperSpeed/HighSpeed/FullSpeed Data) 6 4X USB Port 4 Output (SuperSpeed/HighSpeed/FullSpeed Data) 7 NC No connection (unused pin) 8 D- Data- (USB differential signal for Data Transmission) 9 D+ Data+ (USB differential signal for Data Transmission) 10 VBUS Voltage Bus (5V input, used to detect USB connection) 11 SUSPEND Suspend signal, indicating that the device is in a suspended state 12 RESET Reset signal, used to reset the chip 13 OE Output Enable, controls whether the hub's ports can transmit data 14 CLKOUT Clock output, generates a clock signal for the USB data transmission 15 INT Interrupt signal, used for communication of errors or events with the host 16 SEL1 Selection pin 1 for configuration options (usually used to determine port or other settings) 17 SEL2 Selection pin 2 for configuration options (same as SEL1) 18 PWRON Power-on signal, used to enable the power to the chip 19 VBUS_SENSE VBUS Sense pin, detects whether 5V is applied to the USB port 20 NC No connection (unused pin)Circuit Principle:
The TUSB2046BIRHBR acts as a USB 2.0 hub controller, allowing for the connection of up to four USB devices to a single USB host. It works by providing data lanes (D+ and D-) for communication between devices and the host. The device uses its various pins for power management, data transfer, and controlling signals such as suspend, reset, and interrupts.
FAQ Section:
1. What is the TUSB2046BIRHBR? The TUSB2046BIRHBR is a USB 2.0 hub controller IC designed by Texas Instruments to manage multiple USB devices over a single USB connection. 2. How many pins are there in the TUSB2046BIRHBR? The TUSB2046BIRHBR has 20 pins. 3. What is the function of pin 1 (VCC)? Pin 1 is the power supply input, which typically supplies 3.3V for the proper operation of the chip. 4. What is the function of pin 2 (GND)? Pin 2 is the ground pin, providing the reference voltage for the device. 5. What does pin 3 (1X) represent? Pin 3 represents USB Port 1 Output, which transmits SuperSpeed/HighSpeed/FullSpeed USB data. 6. What does pin 4 (2X) represent? Pin 4 represents USB Port 2 Output, similar to pin 3, and handles USB data transmission for Port 2. 7. What is the function of pin 5 (3X)? Pin 5 represents USB Port 3 Output, also handling USB data transmission for Port 3. 8. What does pin 6 (4X) represent? Pin 6 represents USB Port 4 Output, transmitting USB data for Port 4. 9. What does pin 7 (NC) mean? Pin 7 is a No Connection (NC) pin, which is not used in this device. 10. What is the function of pin 8 (D-)? Pin 8 is the Data- line in the USB differential signaling system. 11. What is the function of pin 9 (D+)? Pin 9 is the Data+ line in the USB differential signaling system, working together with D-. 12. What is the purpose of pin 10 (VBUS)? Pin 10 is the Voltage Bus input pin, used to detect the 5V power supply to the device. 13. What does pin 11 (SUSPEND) indicate? Pin 11 is the Suspend signal, used to indicate that the device is in a suspended state to save power. 14. What is the purpose of pin 12 (RESET)? Pin 12 is the Reset pin, used to initiate a reset of the device. 15. What does pin 13 (OE) control? Pin 13 is the Output Enable (OE) pin, which controls whether the hub's ports can transmit data. 16. What is the function of pin 14 (CLKOUT)? Pin 14 is the Clock Output pin, providing a clock signal to synchronize USB data transmission. 17. What is pin 15 (INT) used for? Pin 15 is the Interrupt (INT) pin, used for signaling events, such as errors or status changes, to the host. 18. What does pin 16 (SEL1) configure? Pin 16 is a Selection Pin 1 (SEL1) that configures various settings for the USB hub, such as enabling specific features. 19. What does pin 17 (SEL2) configure? Pin 17 is a Selection Pin 2 (SEL2), offering further configuration options, similar to SEL1. 20. What is the function of pin 18 (PWRON)? Pin 18 is the Power-On (PWRON) signal, used to enable power to the chip.This breakdown provides an extensive overview of the TUSB2046BIRHBR, including its pinout and function descriptions. For more detailed circuit design assistance, Texas Instruments' datasheet should be consulted.
