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KSZ8721BI-TR
Product Overview
Category
The KSZ8721BI-TR belongs to the category of Ethernet Physical Layer Transceivers.
Use
It is primarily used for Ethernet communication applications, providing a physical interface between an Ethernet MAC (Media Access Control) and a twisted pair cable.
Characteristics
- Supports 10/100 Mbps data rates
- Compliant with IEEE 802.3 standards
- Low power consumption
- Integrated termination resistors
- Auto-MDIX (Automatic Medium Dependent Interface Crossover) support
- Small form factor package
Package
The KSZ8721BI-TR is available in a small 48-pin Thin Quad Flat Pack (TQFP) package.
Essence
The essence of the KSZ8721BI-TR lies in its ability to facilitate reliable and high-speed Ethernet communication by converting digital signals from the MAC into analog signals suitable for transmission over twisted pair cables.
Packaging/Quantity
The KSZ8721BI-TR is typically sold in reels or trays, with a quantity of 2500 units per reel/tray.
Specifications
- Data Rate: 10/100 Mbps
- Supply Voltage: 3.3V
- Operating Temperature Range: -40°C to +85°C
- Package Type: TQFP-48
Detailed Pin Configuration
The KSZ8721BI-TR features a total of 48 pins, each serving a specific purpose. The detailed pin configuration is as follows:
(Pin Number) - (Pin Name) - (Description) 1 - TXEN - Transmit Enable 2 - TXD[3:0] - Transmit Data 3 - TXCLK - Transmit Clock 4 - TXER - Transmit Error 5 - GND - Ground 6 - VDD33 - Power Supply (3.3V) 7 - CRSDV - Carrier Sense/Data Valid 8 - RXD[3:0] - Receive Data 9 - RXER - Receive Error 10 - RX_CLK - Receive Clock 11 - REFCLK - Reference Clock 12 - MDC - Management Data Clock 13 - MDIO - Management Data I/O 14 - VDD33 - Power Supply (3.3V) 15 - GND - Ground 16 - VDD18 - Power Supply (1.8V) 17 - VDD33 - Power Supply (3.3V) 18 - GND - Ground 19 - VDD33 - Power Supply (3.3V) 20 - GND - Ground 21 - VDD33 - Power Supply (3.3V) 22 - GND - Ground 23 - VDD33 - Power Supply (3.3V) 24 - GND - Ground 25 - VDD33 - Power Supply (3.3V) 26 - GND - Ground 27 - VDD33 - Power Supply (3.3V) 28 - GND - Ground 29 - VDD33 - Power Supply (3.3V) 30 - GND - Ground 31 - VDD33 - Power Supply (3.3V) 32 - GND - Ground 33 - VDD33 - Power Supply (3.3V) 34 - GND - Ground 35 - VDD33 - Power Supply (3.3V) 36 - GND - Ground 37 - VDD33 - Power Supply (3.3V) 38 - GND - Ground 39 - VDD33 - Power Supply (3.3V) 40 - GND - Ground 41 - VDD33 - Power Supply (3.3V) 42 - GND - Ground 43 - VDD33 - Power Supply (3.3V) 44 - GND - Ground 45 - VDD33 - Power Supply (3.3V) 46 - GND - Ground 47 - VDD33 - Power Supply (3.3V) 48 - GND - Ground
Functional Features
The KSZ8721BI-TR offers the following functional features:
- Auto-negotiation for speed and duplex mode selection
- LinkMD® TDR-based cable diagnostics
- Energy Efficient Ethernet (EEE) support
- Loopback modes for diagnostic testing
- Integrated termination resistors for reduced external component count
- Support for various LED configurations for link/activity indication
Advantages and Disadvantages
Advantages: - Supports high-speed data rates of up to 100 Mbps - Low power consumption - Compact package size - Integrated termination resistors simplify design
Disadvantages: - Limited to 10/100 Mbps data rates, not suitable for Gigabit Ethernet applications - Requires an external MAC for complete Ethernet functionality
Working Principles
The KSZ8721BI-TR operates by receiving digital signals from an Ethernet MAC and converting them
Liste 10 perguntas e respostas comuns relacionadas à aplicação de KSZ8721BI-TR em soluções técnicas
Sure! Here are 10 common questions and answers related to the application of KSZ8721BI-TR in technical solutions:
Q: What is the KSZ8721BI-TR? A: The KSZ8721BI-TR is a highly integrated Ethernet physical layer transceiver (PHY) that supports 10/100 Mbps data rates.
Q: What are the key features of the KSZ8721BI-TR? A: Some key features include auto-negotiation, MDI/MDIX crossover, energy-efficient Ethernet (EEE), and support for various interfaces like MII, RMII, and SNI.
Q: How can I interface the KSZ8721BI-TR with a microcontroller or processor? A: The KSZ8721BI-TR supports multiple interfaces such as MII (Media Independent Interface), RMII (Reduced Media Independent Interface), and SNI (Serial Network Interface).
Q: Can the KSZ8721BI-TR be used in both full-duplex and half-duplex modes? A: Yes, the KSZ8721BI-TR supports both full-duplex and half-duplex communication modes.
Q: Does the KSZ8721BI-TR support Auto-MDIX? A: Yes, the KSZ8721BI-TR has built-in Auto-MDIX functionality, which eliminates the need for crossover cables.
Q: What is Energy-Efficient Ethernet (EEE)? A: EEE is a feature supported by the KSZ8721BI-TR that reduces power consumption during periods of low network activity.
Q: Can the KSZ8721BI-TR operate at different voltage levels? A: Yes, the KSZ8721BI-TR supports a wide range of supply voltages, typically from 3.3V to 2.5V.
Q: Is the KSZ8721BI-TR compatible with different Ethernet standards? A: Yes, the KSZ8721BI-TR is compliant with IEEE 802.3 and supports both 10BASE-T and 100BASE-TX Ethernet standards.
Q: Can I use the KSZ8721BI-TR in industrial applications? A: Yes, the KSZ8721BI-TR is designed to operate reliably in harsh industrial environments, making it suitable for industrial applications.
Q: Are there any evaluation boards or reference designs available for the KSZ8721BI-TR? A: Yes, Microchip (formerly Microsemi) provides evaluation boards and reference designs that can help developers quickly prototype and integrate the KSZ8721BI-TR into their solutions.
Please note that these answers are general and may vary depending on the specific requirements and implementation of the KSZ8721BI-TR in a technical solution.