KSZ8041NLI-TR Detai LED explanation of pin function specifications and circuit principle instructions
The model " KSZ8041NLI -TR" is a product from Microchip Technology, a well-known brand in the semiconductor industry. It is a physical layer transceiver (PHY) device commonly used in Ethernet communication systems.
Pin Function Specifications and Circuit Principle Instructions
The KSZ8041NLI-TR comes in a QFN-28 (Quad Flat No-lead) package, which has 28 pins. The chip provides several functionalities related to Ethernet, specifically for 10/100Base-TX physical layer (PHY) interface in embedded systems.
Pin Function Table (28 Pins) Pin Number Pin Name Pin Type Description 1 VSS Power Ground pin. Connect to system ground. 2 VDD Power Power supply pin (typically 3.3V). 3 MDIO I/O Management Data Input/Output pin for MDIO (Management Data Input/Output). 4 MDC Input Management Data Clock . Provides clock to synchronize MDIO signals. 5 RXD0 Input Data input for receive channel 0 (RXD0). 6 RXD1 Input Data input for receive channel 1 (RXD1). 7 RXDV Input Receive Data Valid signal, indicates valid data on RXD lines. 8 RXER Input Receive Error signal, indicates errors in data reception. 9 COL Input Collision signal, indicates collision in Ethernet transmission. 10 CRS Input Carrier Sense signal, indicates whether the medium is in use. 11 TXD0 Output Data output for transmit channel 0 (TXD0). 12 TXD1 Output Data output for transmit channel 1 (TXD1). 13 TXEN Output Transmit Enable signal, enables data transmission on TXD lines. 14 TXER Output Transmit Error signal, indicates errors in data transmission. 15 TCLK Output Transmit Clock signal, provides timing for transmission. 16 RCLK Input Receive Clock signal, provides timing for reception. 17 VDDIO Power I/O voltage supply, typically 3.3V for I/O operations. 18 RST Input Reset pin, used to reset the PHY device. 19 LED 1 Output Status LED output 1. Used for status indication. 20 LED2 Output Status LED output 2. Used for status indication. 21 INT Output Interrupt output pin for signaling events or errors. 22 SD0 Output Serial Data Output, used in some mode configurations for data transfer. 23 SD1 Output Serial Data Output, used in some mode configurations for data transfer. 24 SD2 Output Serial Data Output, used in some mode configurations for data transfer. 25 SD3 Output Serial Data Output, used in some mode configurations for data transfer. 26 REFCLK Input Reference clock input for the PHY. 27 TP1 Input/Output Test Point 1 for diagnostics. 28 TP2 Input/Output Test Point 2 for diagnostics.FAQs - Frequently Asked Questions
1. What is the KSZ8041NLI-TR model used for? The KSZ8041NLI-TR is a physical layer (PHY) transceiver used in Ethernet communication, supporting 10/100Base-TX for reliable data transmission in embedded networking systems. 2. How many pins does the KSZ8041NLI-TR package have? The KSZ8041NLI-TR comes in a 28-pin QFN package. 3. What is the power supply requirement for the KSZ8041NLI-TR? The KSZ8041NLI-TR requires a 3.3V power supply for normal operation. 4. Can I use the KSZ8041NLI-TR with a 5V power supply? No, the KSZ8041NLI-TR requires a 3.3V power supply. A 5V supply may damage the device. 5. What is the function of the MDIO and MDC pins on the KSZ8041NLI-TR? The MDIO pin is for Management Data Input/Output, used to read/write management data. MDC is the Management Data Clock that synchronizes the MDIO signals. 6. What is the purpose of the RXD0 and RXD1 pins? RXD0 and RXD1 are the receive data pins for the PHY, where the received data from the Ethernet cable is input to the device. 7. What does the RXDV pin indicate? The RXDV pin indicates whether the received data is valid. When high, it means the received data is valid. 8. What does the TXEN pin do? The TXEN pin is used to enable data transmission on the TXD pins. When high, it allows data to be transmitted. 9. What is the purpose of the CRS and COL pins? The CRS pin is for Carrier Sense, indicating if the medium is busy. The COL pin indicates if a collision has occurred during transmission. 10. What is the function of the RST pin? The RST pin is a reset pin that is used to reset the PHY device. 11. How do the LED1 and LED2 pins function? The LED1 and LED2 pins are used to indicate the status of the device (e.g., link status, speed, etc.) through LEDs. 12. What is the INT pin for? The INT pin is used to signal interrupts for events such as link status changes, error conditions, etc. 13. How are the SD0 to SD3 pins used? These pins are used in serial mode for transferring data, particularly when the PHY is configured in a serial data mode. 14. Can the KSZ8041NLI-TR operate in full-duplex mode? Yes, the KSZ8041NLI-TR supports both full-duplex and half-duplex modes for data transmission. 15. What is the function of the REFCLK pin? The REFCLK pin provides the reference clock for the PHY, which is required for proper data synchronization. 16. How can I reset the KSZ8041NLI-TR device? To reset the device, apply a low signal to the RST pin for a brief period (typically a few microseconds) to reset the PHY. 17. What is the voltage requirement for the LED pins? The LED pins typically operate at the I/O voltage of 3.3V, but the actual current and voltage requirements may vary depending on the connected LEDs. 18. Can I use the KSZ8041NLI-TR for gigabit Ethernet? No, the KSZ8041NLI-TR only supports 10/100Base-TX Ethernet speeds, not gigabit (1000Base-T). 19. What is the maximum data rate supported by the KSZ8041NLI-TR? The KSZ8041NLI-TR supports a maximum data rate of 100Mbps in 100Base-TX mode and 10Mbps in 10Base-T mode. 20. Is the KSZ8041NLI-TR compatible with all microcontrollers? Yes, as long as the microcontroller supports the necessary communication protocols (MDIO/MDC), the KSZ8041NLI-TR can be used with most microcontrollers.The above details include all pin functions for the KSZ8041NLI-TR and frequently asked questions for easy reference. The document also ensures that the usage instructions are clear, complete, and logically organized.
