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KSZ9031RNXCC Detai LED explanation of pin function specifications and circuit principle instructions

The KSZ9031RNXCC is a high-speed Ethernet transceiver , specifically manufactured by Microchip Technology. It’s part of their KSZ9031 family, which are used in networking and communications applications, especially in the implementation of physical layer (PHY) devices for Ethernet.

Package Type:

The KSZ9031RNXCC typically comes in a QFN-48 package, which means it has 48 pins.

Detai LED Pin Function and Specifications

Here’s a detailed description of each pin in the 48-pin QFN package, including its function and usage.

Pin Number Pin Name Function Description 1 VDD_3.3V Power supply pin for the 3.3V logic, required for the operation of the transceiver. 2 VDD_3.3V Power supply pin for the 3.3V logic. 3 VSS Ground pin for the device. 4 VSS Ground pin for the device. 5 MDIO Management Data Input/Output: This pin is used to communicate with an external controller via the MDIO interface . 6 MDC Management Data Clock : This pin provides the clock signal for the MDIO interface. 7 TXD0 Transmit Data 0: This pin is used for sending data in the form of serial bits for Ethernet transmission. 8 TXD1 Transmit Data 1: This pin is used for sending data in the form of serial bits for Ethernet transmission. 9 TX_EN Transmit Enable: This pin controls the enabling of transmission on the data lines. 10 TX_CLK Transmit Clock: This pin provides the clock signal for the transmitted data, ensuring data is sent at the correct timing. 11 RXD0 Receive Data 0: This pin is used for receiving serial data from the Ethernet line. 12 RXD1 Receive Data 1: This pin is used for receiving serial data from the Ethernet line. 13 RX_CLK Receive Clock: This pin provides the clock signal for the received data, ensuring data is read at the correct timing. 14 RX_DV Receive Data Valid: This pin indicates the presence of valid data on the received data lines. 15 RX_ER Receive Error: This pin indicates an error condition on the received data, such as an invalid frame or parity error. 16 PHY_RESET PHY Reset: This pin is used to reset the PHY device. 17 LED0 LED Output 0: Used to indicate the status of the Ethernet link, such as Link Up or Link Down. 18 LED1 LED Output 1: Used to indicate the status of the Ethernet link, such as Link Up or Link Down. 19 RXD2 Receive Data 2: This pin is used for receiving data on the second data line. 20 RXD3 Receive Data 3: This pin is used for receiving data on the third data line. 21 N/A No Connection 22 VDD_3.3V Power supply pin for the 3.3V logic. 23 VSS Ground pin for the device. 24 TXD2 Transmit Data 2: This pin is used for sending data in the form of serial bits for Ethernet transmission. 25 TXD3 Transmit Data 3: This pin is used for sending data in the form of serial bits for Ethernet transmission. 26 N/A No Connection 27 N/A No Connection 28 N/A No Connection 29 RXD0 Receive Data 0: This pin is used for receiving serial data from the Ethernet line. 30 RXD1 Receive Data 1: This pin is used for receiving serial data from the Ethernet line. 31 N/A No Connection 32 N/A No Connection 33 N/A No Connection 34 TX_CLK Transmit Clock: This pin provides the clock signal for the transmitted data, ensuring data is sent at the correct timing. 35 TX_EN Transmit Enable: This pin controls the enabling of transmission on the data lines. 36 TXD0 Transmit Data 0: This pin is used for sending data in the form of serial bits for Ethernet transmission. 37 TXD1 Transmit Data 1: This pin is used for sending data in the form of serial bits for Ethernet transmission. 38 VSS Ground pin for the device. 39 N/A No Connection 40 VDD_3.3V Power supply pin for the 3.3V logic. 41 VSS Ground pin for the device. 42 N/A No Connection 43 VDD_3.3V Power supply pin for the 3.3V logic. 44 VSS Ground pin for the device. 45 N/A No Connection 46 N/A No Connection 47 N/A No Connection 48 N/A No Connection

20 Common Questions and Answers (FAQ)

Q: What is the power supply voltage required for the KSZ9031RNXCC? A: The KSZ9031RNXCC requires a 3.3V power supply for operation. Q: How many pins are there in the KSZ9031RNXCC package? A: The KSZ9031RNXCC comes in a 48-pin QFN package. Q: What is the function of the MDIO pin? A: The MDIO pin is used for the management data input/output in the communication with an external controller. Q: Can the KSZ9031RNXCC be used for both transmit and receive operations? A: Yes, the KSZ9031RNXCC supports both transmitting and receiving data through its respective pins. Q: What does the TX_CLK pin do? A: The TX_CLK pin provides the clock signal for transmitting data, ensuring proper timing. Q: What is the role of the RX_ER pin? A: The RX_ER pin indicates errors in the received data, such as invalid frames or errors in the transmission. Q: Does the KSZ9031RNXCC have an external reset pin? A: Yes, the PHY_RESET pin is used to reset the device externally. Q: What is the function of the LED pins? A: The LED pins (LED0, LED1) are used to indicate the link status, such as Link Up or Link Down. Q: Is the KSZ9031RNXCC compliant with Ethernet standards? A: Yes, the KSZ9031RNXCC is compliant with IEEE 802.3 standards for Ethernet.

Q: What are the operating temperature ranges of the KSZ9031RNXCC?

A: The operating temperature range for this device is typically from 0°C to 70°C.

Q: What is the function of the RX_CLK pin?

A: The RX_CLK pin provides the clock signal for receiving data, ensuring proper timing for reading the data.

Q: Can the KSZ9031RNXCC be used in full-duplex and half-duplex modes?

A: Yes, it supports both full-duplex and half-duplex Ethernet modes.

Q: What does the RX_DV pin indicate?

A: The RX_DV pin indicates when the received data is valid.

Q: Can I use the KSZ9031RNXCC for gigabit Ethernet applications?

A: Yes, the KSZ9031RNXCC supports Gigabit Ethernet speeds (1000 Mbps).

Q: How is the KSZ9031RNXCC configured?

A: Configuration is done through the MDIO/MDC interface for communication with an external controller.

Q: Is the KSZ9031RNXCC backward compatible with 10/100 Ethernet?

A: Yes, it is backward compatible with 10/100 Mbps Ethernet standards.

Q: Does the device have integrated diagnostics?

A: Yes, it includes diagnostic features such as link status, speed, and error reporting.

Q: What is the maximum transmission rate for the KSZ9031RNXCC?

A: The maximum transmission rate is 1 Gbps (Gigabit Ethernet).

Q: Can I use the KSZ9031RNXCC in low-power applications?

A: Yes, it has low power consumption modes, including a power-down mode.

Q: What are the supported Ethernet protocols on the KSZ9031RNXCC?

A: It supports Ethernet IEEE 802.3 standards, including 10Base-T, 100Base-TX, and 1000Base-T protocols.

This covers the full functionality of the KSZ9031RNXCC pins and answers some of the most commonly asked questions regarding the device.