It looks like you're asking for detailed specifications of the TUSB4041IPAPR, a USB hub controller from Texas Instruments. Based on your request, I can provide the following breakdown of the pin functions, package details, and frequently asked questions. Please note that, given the detail required, this will involve extensive explanations.
1. Brand & Model Information
Brand: Texas Instruments Model: TUSB4041IPAPR Type: USB Hub Controller Package: 40-pin VQFN (Very Thin Quad Flat No-lead)2. Package and Pin Functions
The TUSB4041IPAPR has a 40-pin VQFN package, with each pin having a specific function. Here’s a complete pinout for the device:
Pin # Pin Name Description 1 VDD Power supply input (3.3V) 2 GND Ground connection 3 VDD Power supply input (3.3V) 4 GND Ground connection 5 VBUS USB 2.0/3.0 bus voltage 6 D- USB data negative 7 D+ USB data positive 8 GND Ground connection 9 IO0 Input/Output pin 0 (used for USB port switching) 10 IO1 Input/Output pin 1 (used for USB port switching) 11 IO2 Input/Output pin 2 (used for USB port switching) 12 IO3 Input/Output pin 3 (used for USB port switching) 13 RESET_N Active-low reset input 14 INT_N Interrupt output (active-low) 15 REFCLK+ Reference clock input (positive) 16 REFCLK- Reference clock input (negative) 17 NC No connection 18 NC No connection 19 NC No connection 20 NC No connection 21 A0 Address bit 0 for I2C (used for chip address selection) 22 A1 Address bit 1 for I2C (used for chip address selection) 23 A2 Address bit 2 for I2C (used for chip address selection) 24 A3 Address bit 3 for I2C (used for chip address selection) 25 SDA I2C data line 26 SCL I2C clock line 27 D2 USB data line for downstream port 2 28 D3 USB data line for downstream port 3 29 D4 USB data line for downstream port 4 30 D5 USB data line for downstream port 5 31 GND Ground connection 32 VDD Power supply input (3.3V) 33 VBUS USB 2.0/3.0 bus voltage 34 D6 USB data line for downstream port 6 35 D7 USB data line for downstream port 7 36 D8 USB data line for downstream port 8 37 D9 USB data line for downstream port 9 38 RESET_N Active-low reset input 39 INT_N Interrupt output (active-low) 40 VDD Power supply input (3.3V)3. Pin Function Details
This section provides detailed descriptions of each pin function listed above:
VDD (Pins 1, 3, 32): These pins provide power to the chip. They should be connected to a stable 3.3V power supply. GND (Pins 2, 4, 8, 31): These pins are used for grounding. Connect them to the ground of the system. VBUS (Pins 5, 33): This is the USB bus voltage, used to power the connected USB devices. D- (Pin 6): This is the USB data negative signal line. D+ (Pin 7): This is the USB data positive signal line. IO0 - IO3 (Pins 9-12): These are the input/output pins used for USB port switching. They may control individual ports for data transfer. RESET_N (Pins 13, 38): The active-low reset input, which resets the USB hub when pulled low. INT_N (Pins 14, 39): The interrupt output pin used for signaling when the hub needs attention. REFCLK+ (Pin 15) & REFCLK- (Pin 16): These pins provide the differential reference clock input for proper USB operation. SDA (Pin 25) & SCL (Pin 26): These are the I2C data and clock lines, used for Communication with the hub's control system. A0 - A3 (Pins 21-24): These address pins are used to select the I2C chip address for communication. D2 - D9 (Pins 27-37): These are the data lines for the downstream USB ports 2 through 9.4. Frequently Asked Questions (FAQ)
Q1: What is the main function of the TUSB4041IPAPR? A1: The TUSB4041IPAPR is a USB 2.0/3.0 hub controller that connects multiple downstream USB devices to a host system.
Q2: How many USB downstream ports does the TUSB4041IPAPR support? A2: It supports up to 9 downstream USB ports.
Q3: What voltage should be supplied to the VDD pins of the TUSB4041IPAPR? A3: The VDD pins require a stable 3.3V power supply.
Q4: Can the TUSB4041IPAPR be used for USB 3.0 devices? A4: Yes, the TUSB4041IPAPR is compatible with both USB 2.0 and USB 3.0 devices.
Q5: What is the purpose of the RESETN pin? A5: The RESETN pin is an active-low reset input. It is used to reset the hub to a known state when pulled low.
Q6: How does the TUSB4041IPAPR communicate with a microcontroller? A6: Communication with a microcontroller is done via the I2C interface (SDA and SCL pins).
Q7: What is the role of the INTN pin? A7: The INTN pin is the interrupt output, signaling when the hub needs attention from the host system.
Q8: How many address bits are available for I2C communication? A8: The TUSB4041IPAPR supports up to 4 address bits, selectable through the A0-A3 pins.
Q9: What type of clock input does the TUSB4041IPAPR use? A9: It requires a differential reference clock, provided through the REFCLK+ and REFCLK- pins.
Q10: What is the significance of the VBUS pins? A10: The VBUS pins supply power to the USB bus and downstream USB devices.
Q11: How many power supply pins does the TUSB4041IPAPR have? A11: It has 3 power supply pins: VDD pins (1, 3, 32).
Q12: Is the TUSB4041IPAPR backward compatible with USB 1.1? A12: The TUSB4041IPAPR is designed for USB 2.0 and USB 3.0 but may support USB 1.1 devices as well.
Q13: How many ground pins does the TUSB4041IPAPR have? A13: There are 4 ground pins: Pins 2, 4, 8, and 31.
Q14: Can the TUSB4041IPAPR work with USB peripherals requiring high current? A14: Yes, the TUSB4041IPAPR can handle USB peripherals requiring moderate current levels. However, external power may be needed for high-current devices.
Q15: Is the TUSB4041IPAPR suitable for high-speed data applications? A15: Yes, it supports USB 2.0 high-speed and USB 3.0 SuperSpeed data transfer.
Q16: What is the maximum data rate supported by the TUSB4041IPAPR? A16: The TUSB4041IPAPR supports USB 2.0 high-speed (480 Mbps) and USB 3.0 SuperSpeed (5 Gbps) data rates.
Q17: Can the TUSB4041IPAPR be used in both host and device configurations? A17: No, the TUSB4041IPAPR is designed to function as a hub, connecting multiple USB devices to a host.
Q18: What is the purpose of the IO0-IO3 pins? A18: These pins are used for port switching, controlling the data transfer for individual USB ports.
Q19: How many downstream USB ports can the TUSB4041IPAPR handle simultaneously? A19: The TUSB4041IPAPR can handle up to 9 downstream USB ports simultaneously.
Q20: Can the TUSB4041IPAPR be used in power-sensitive applications? A20: Yes, it is suitable for power-sensitive applications where efficient power management is important, thanks to its low-power features.
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