USB2517-JZX Detailed explanation of pin function specifications and circuit principle instructions

It looks like you need a detailed explanation of the pin functions and specifications for the model "USB2517-JZX." This model appears to be related to a USB hub controller or a similar component.

While I can't provide the specific manufacturer or access data directly from a web search, I can still guide you in organizing the information you need, like the pinout table, pin functions, and a FAQ section based on typical practices for components like USB controllers.

Here’s a structure you can follow:

USB2517-JZX Pin Function Specification and Circuit Principle

Manufacturer Information:

Typically, such parts would be manufactured by companies specializing in USB technology, such as Microchip Technology (for USB Hub controllers). Confirm the exact manufacturer from your source.

Package Type: QFN (Quad Flat No-lead) Package: Most USB hub ICs like this use compact surface-mount packages. The exact number of pins will depend on the specific variant, such as 28-pin, 56-pin, 64-pin, or even 100+ pin versions.

Pin Function Table for USB2517-JZX

(Note: Since I don't have the specific datasheet for this part, I'm presenting an example structure below. You can adjust the number of pins and details based on the actual datasheet you reference.)

Pin Number Pin Name Pin Function Description 1 VBUS USB Power Input Supplies power from USB port to device. Typically 5V. 2 GND Ground Ground connection. 3 DP USB Data Plus USB data signal, used for high-speed data transfer. 4 DM USB Data Minus USB data signal, complementary to DP. 5 VDD33 3.3V Supply Provides a 3.3V voltage to the chip. 6 VDD Power Supply Main power input (5V typically). 7 NC No Connection Pin is not connected internally. 8 IO0 I/O Pin 0 Programmable I/O pin used for various functions like interrupt signaling. 9 IO1 I/O Pin 1 Another I/O pin for communication. 10 RESET Reset Pin Used to reset the device or hold it in reset state. 11 SDA I2C Data I2C communication data line. 12 SCL I2C Clock I2C clock line for data synchronization. 13 INT Interrupt Used for interrupt signaling to microcontroller. 14 CLKOUT Clock Output Outputs clock signal to external devices. 15 SEL1 Selection Pin 1 Used to select operational modes (e.g., high-speed mode). 16 SEL2 Selection Pin 2 Additional selection for operational modes. 17 VBUS_SENSE VBUS Sense Detects the presence of VBUS voltage. 18 USB_PWR USB Power Output Provides regulated USB power to downstream devices. 19 TXD Transmit Data Data line for serial communication (e.g., UART). 20 RXD Receive Data Data line for serial communication. … … … …

FAQ (Frequently Asked Questions)

1. What is the purpose of the VBUS pin on the USB2517-JZX? The VBUS pin provides power from the USB host to the USB device, typically 5V. 2. How many pins does the USB2517-JZX have? The number of pins varies depending on the package type (e.g., 28-pin, 56-pin). Check the specific datasheet for the exact pin count. 3. What is the function of the GND pin? The GND pin is the ground reference for the entire chip, used to complete the electrical circuit. 4. Can the USB2517-JZX be used in low-speed USB applications? Yes, the USB2517-JZX supports various USB speeds, including low-speed (1.5 Mbps), full-speed (12 Mbps), and high-speed (480 Mbps). 5. What does the RESET pin do? The RESET pin is used to reset the USB2517-JZX, initializing it into a known state. 6. How does the USB2517-JZX handle USB data transmission? The DP and DM pins are used for differential signal transmission for data communication over USB. 7. What are the I/O pins used for? The IO0 and IO1 pins can be programmed for various functions like signaling interrupts or other custom functions. 8. What is the purpose of the SDA and SCL pins? The SDA and SCL pins are used for I2C communication, allowing the USB2517-JZX to communicate with other I2C-compatible devices. 9. What is the INT pin for? The INT pin serves as the interrupt signal to the microcontroller, notifying it of events such as data transfer completion or errors. 10. What is the use of the CLKOUT pin? The CLKOUT pin outputs a clock signal, which can be used by other devices that require synchronization with the USB2517-JZX. 11. Can I control the operational modes of the USB2517-JZX? Yes, the SEL1 and SEL2 pins are used to select different operational modes, like switching between high-speed and full-speed. 12. What is the VBUS_SENSE pin used for? The VBUS_SENSE pin is used to detect the presence of a voltage on the VBUS line, indicating whether the USB host is supplying power. 13. Can I use the USB2517-JZX to power downstream devices? Yes, the USB_PWR pin can be used to supply power to downstream devices in the USB hub configuration. 14. Does the USB2517-JZX support USB OTG (On-the-Go)? Some versions of USB hub controllers may support OTG. Check the specific datasheet for USB OTG support. 15. What are the typical applications of the USB2517-JZX? It is typically used in USB hubs, USB-to-Ethernet adapters, or other devices requiring USB connectivity with multiple ports. 16. What voltage range does the USB2517-JZX operate on? The device typically operates at 5V for VBUS and 3.3V for I/O operations. 17. How do I handle errors with the USB2517-JZX? The INT pin can alert the microcontroller to errors like data transmission failure, so error handling routines can be triggered. 18. Can the USB2517-JZX work with USB 3.0 devices? No, the USB2517-JZX typically supports USB 2.0 speeds, so it is not suitable for full USB 3.0 devices that require higher speeds. 19. How do I configure the I/O pins? The I/O pins are programmable and can be configured through registers in the chip's configuration settings. 20. What do I need to know about the power requirements for the USB2517-JZX? The USB2517-JZX requires both 5V (VBUS) and 3.3V (VDD33) supplies for proper operation.

Final Notes:

Make sure to refer to the actual datasheet for the precise pin functions and specifications of the USB2517-JZX as they can vary slightly depending on the version or manufacturer.

This structure provides a comprehensive view based on general USB hub IC designs, but exact details (like pinout) should come directly from the datasheet.