The model number "BCM54216EB1KMLG" belongs to Broadcom. Broadcom is a well-known semiconductor manufacturer that specializes in networking and broadband components. The BCM54216EB1KMLG specifically refers to a Gigabit Ethernet PHY (Physical Layer Transceiver), used for high-speed network connections.
Package and Pin Function Specifications for BCM54216EB1KMLG
Package Type: The BCM54216EB1KMLG typically comes in an LQFP (Low-profile Quad Flat Package) or similar surface-mount package with 48 pins.
Pin Function Specifications: Below is a detai LED list of the 48 pins and their functions.
Pin Number Pin Name Function 1 VDD Power Supply (3.3V) 2 VSS Ground 3 MDIO Management Data Input/Output 4 MDC Management Data Clock 5 REFCLK+ Reference Clock (Positive) 6 REFCLK- Reference Clock (Negative) 7 RXD0+ Receive Data 0 (Positive) 8 RXD0- Receive Data 0 (Negative) 9 RXD1+ Receive Data 1 (Positive) 10 RXD1- Receive Data 1 (Negative) 11 RXD2+ Receive Data 2 (Positive) 12 RXD2- Receive Data 2 (Negative) 13 RXD3+ Receive Data 3 (Positive) 14 RXD3- Receive Data 3 (Negative) 15 RXC+ Receive Clock (Positive) 16 RXC- Receive Clock (Negative) 17 TXD0+ Transmit Data 0 (Positive) 18 TXD0- Transmit Data 0 (Negative) 19 TXD1+ Transmit Data 1 (Positive) 20 TXD1- Transmit Data 1 (Negative) 21 TXD2+ Transmit Data 2 (Positive) 22 TXD2- Transmit Data 2 (Negative) 23 TXD3+ Transmit Data 3 (Positive) 24 TXD3- Transmit Data 3 (Negative) 25 TXC+ Transmit Clock (Positive) 26 TXC- Transmit Clock (Negative) 27 RXDV Receive Data Valid 28 RXER Receive Error 29 COL Collision Detection 30 CRS Carrier Sense 31 PHYAD PHY Address (for MDIO management) 32 INTN Interrupt (Active Low) 33 RXCLK+ RX Clock (Positive) 34 RXCLK- RX Clock (Negative) 35 LED0 LED0 Indicator 36 LED1 LED1 Indicator 37 LED2 LED2 Indicator 38 SCL I2C Clock (for external control) 39 SDA I2C Data (for external control) 40 RGMIITXCTL RGMII Transmit Control 41 RGMIIRXCTL RGMII Receive Control 42 RESET_N Reset (Active Low) 43 VDD Power Supply (3.3V) 44 VSS Ground 45 RGMII_TXD0+ RGMII Transmit Data 0 (Positive) 46 RGMII_TXD0- RGMII Transmit Data 0 (Negative) 47 RGMII_RXD0+ RGMII Receive Data 0 (Positive) 48 RGMII_RXD0- RGMII Receive Data 0 (Negative)This is an example of pin functionality, covering the major ones, including power, data, control, and I/O pins. The exact function may depend on how the component is used in the system.
Circuit Principle Instructions
The BCM54216EB1KMLG uses a Gigabit Ethernet PHY to interface between the Ethernet physical layer and the network equipment. It can support 10/100/1000 Mbps speeds and works with different types of Ethernet protocols. The MDIO/MDC lines allow communication with an external microcontroller or management device to configure or control the PHY settings. The transmit/receive differential pairs (e.g., TXD0+, TXD0-, RXD0+, RXD0-) are used to transmit and receive Ethernet data. RXC and TXC are differential clock signals that are associated with the data transmit/receive pairs. The LEDs are used for status indication, such as connection status or data activity. The I2C interface (SCL and SDA) provides a way for external devices to control or monitor the PHY configuration.20 Common FAQs about BCM54216EB1KMLG:
What is the BCM54216EB1KMLG? The BCM54216EB1KMLG is a Gigabit Ethernet PHY designed by Broadcom for high-speed networking.
What is the pin count of the BCM54216EB1KMLG? The BCM54216EB1KMLG comes in a 48-pin package.
What does the MDIO/MDC interface do? MDIO and MDC are used for management and configuration of the PHY through the IEE 802.3 standard.
What is the function of the REFCLK pins? REFCLK pins (REFCLK+ and REFCLK-) provide a clock input to synchronize the operation of the PHY.
How do the TXD and RXD pairs work? TXD and RXD differential pairs are used for data transmission and reception.
What is the RXC/TXC pair used for? RXC and TXC are differential clock signals used in conjunction with the data pins for synchronous communication.
What is the purpose of the INTN pin? The INTN pin is used to signal interrupt requests from the PHY to the host processor.
What is the RESETN pin used for? RESETN is used to reset the PHY to initialize or recover from an error state.
What is the RGMII interface? RGMII is a high-speed interface that connects the PHY to a network processor or switch.
How does the BCM54216EB1KMLG support multiple data speeds? The device can operate at 10, 100, or 1000 Mbps depending on the network environment.
What are the LED indicators used for? The LED pins are used for status indicators, such as link activity or speed.
How is power supplied to the BCM54216EB1KMLG? The PHY is powered by a 3.3V power supply (VDD).
Can the BCM54216EB1KMLG operate in full-duplex mode? Yes, it supports full-duplex operation for both transmit and receive.
What is the role of the COL pin? The COL pin indicates a collision on the network, signaling potential packet loss or error.
What is the function of the CRS pin? The CRS pin detects carrier sense, meaning it is used to signal if there is a valid carrier signal for communication.
Can I use this PHY in a 10/100 network? Yes, the BCM54216EB1KMLG is backward compatible and can operate in 10/100 mode as well as 1000 Mbps mode.
What external components are required for the BCM54216EB1KMLG? A reference clock source and optional external components like resistors and capacitor s are needed for proper operation.
What is the operating temperature range of the BCM54216EB1KMLG? The device typically operates within the range of -40°C to +85°C.
How do I reset the BCM54216EB1KMLG? You can reset the device by pulling the RESET_N pin low.
How is the BCM54216EB1KMLG configured? Configuration is typically done using the MDIO/MDC interface for settings like speed and duplex mode.
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