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KS8721SL
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KS8721SL

Product Overview

  • Category: Ethernet Transceiver
  • Use: The KS8721SL is a single-port 10/100BASE-TX/FX Ethernet physical layer transceiver.
  • Characteristics: It provides a robust and flexible solution for high-performance Ethernet applications.
  • Package: The KS8721SL comes in a small form-factor, 48-pin LQFP package.
  • Essence: This transceiver enables reliable and efficient communication over Ethernet networks.
  • Packaging/Quantity: The KS8721SL is typically sold in reels of 250 units.

Specifications

  • Interface: MII (Media Independent Interface)
  • Data Rate: 10/100 Mbps
  • Operating Voltage: 3.3V
  • Temperature Range: -40°C to +85°C
  • Power Consumption: Low power consumption for energy-efficient operation
  • LED Indicators: Integrated LED indicators for link/activity status

Detailed Pin Configuration

The KS8721SL has a total of 48 pins. Here is the detailed pin configuration:

  1. VDDA
  2. VSSA
  3. VDDIO
  4. VSSIO
  5. TXEN
  6. TXD[0]
  7. TXD[1]
  8. TXD[2]
  9. TXD[3]
  10. TX_CLK
  11. CRS
  12. RXD[0]
  13. RXD[1]
  14. RXD[2]
  15. RXD[3]
  16. RX_CLK
  17. MDI_CRS
  18. MDI_COL
  19. MDIRXER
  20. MDIRXDV
  21. MDITXEN
  22. MDITXCLK
  23. MDI_TXD[0]
  24. MDI_TXD[1]
  25. MDI_TXD[2]
  26. MDI_TXD[3]
  27. MDI_RXD[0]
  28. MDI_RXD[1]
  29. MDI_RXD[2]
  30. MDI_RXD[3]
  31. MDC
  32. MDIO
  33. VDDA
  34. VSSA
  35. VDDIO
  36. VSSIO
  37. REF_CLK
  38. VDDPLL
  39. VSSPLL
  40. PLL_LOCK
  41. XTAL_IN
  42. XTAL_OUT
  43. VDDA
  44. VSSA
  45. VDDIO
  46. VSSIO
  47. VDD
  48. VSS

Functional Features

  • Auto-Negotiation: Supports auto-negotiation for automatic configuration of link speed and duplex mode.
  • MDI/MDIX Support: Provides support for both MDI (Media Dependent Interface) and MDIX (Media Independent Interface) connections.
  • Energy-Efficient Ethernet: Implements Energy-Efficient Ethernet (EEE) technology to reduce power consumption during periods of low network activity.
  • Link Quality Indicator: Includes a link quality indicator to monitor the signal integrity of the Ethernet connection.

Advantages and Disadvantages

Advantages: - Robust and reliable performance - Low power consumption - Supports auto-negotiation for easy setup - Compact form-factor package

Disadvantages: - Limited to 10/100 Mbps data rate - Does not support Gigabit Ethernet

Working Principles

The KS8721SL operates based on the principles of Ethernet communication. It uses the MII interface to connect with a MAC (Media Access Control) layer, enabling the transmission and reception of Ethernet frames. The transceiver supports auto-negotiation to establish the link speed and duplex mode with the connected device. It also incorporates energy-efficient features to reduce power consumption during idle periods.

Detailed Application Field Plans

The KS8721SL is widely used in various Ethernet applications, including:

  1. Network switches
  2. Routers
  3. Industrial automation systems
  4. IP cameras
  5. Home networking devices

Its reliable performance and flexible features make it suitable for both commercial and industrial applications.

Detailed and Complete Alternative Models

  • KSZ8081RNB: Single-port 10/100BASE-TX/FX Ethernet transceiver with reduced pin count.
  • KSZ8863MLL: Triple-port 10/100BASE-TX/FX Ethernet switch with integrated transceivers.
  • KSZ9031RNX: Single-port Gigabit Ethernet transceiver with advanced features.

These alternative models offer different capabilities and may be suitable for specific application requirements.

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Maglista ng 10 karaniwang tanong at sagot na nauugnay sa aplikasyon ng KS8721SL sa mga teknikal na solusyon

Sure! Here are 10 common questions and answers related to the application of KS8721SL in technical solutions:

Q1: What is KS8721SL? A1: KS8721SL is a highly integrated Ethernet physical layer transceiver (PHY) chip used for connecting devices to an Ethernet network.

Q2: What are the key features of KS8721SL? A2: The key features of KS8721SL include support for 10/100 Mbps data rates, auto-negotiation, MDI/MDIX crossover, power-down modes, and various diagnostic functions.

Q3: Can KS8721SL be used in industrial applications? A3: Yes, KS8721SL is designed to operate reliably in industrial environments, making it suitable for industrial automation, control systems, and other industrial applications.

Q4: How do I connect KS8721SL to a microcontroller or processor? A4: KS8721SL uses a standard MII (Media Independent Interface) or RMII (Reduced Media Independent Interface) interface, which can be easily connected to most microcontrollers or processors with Ethernet capabilities.

Q5: Does KS8721SL support Power over Ethernet (PoE)? A5: No, KS8721SL does not support Power over Ethernet. It is a PHY chip responsible for the physical layer communication only.

Q6: Can KS8721SL be used in automotive applications? A6: Yes, KS8721SL is automotive-grade and can be used in automotive applications such as in-vehicle networking and infotainment systems.

Q7: What voltage levels does KS8721SL support? A7: KS8721SL supports both 3.3V and 2.5V power supply voltages, providing flexibility in different system designs.

Q8: Is KS8721SL compatible with IEEE 802.3 standards? A8: Yes, KS8721SL is fully compliant with the IEEE 802.3 standard for Ethernet communication.

Q9: Can KS8721SL be used in low-power applications? A9: Yes, KS8721SL offers power-down modes and energy-efficient features to minimize power consumption in low-power applications.

Q10: Are there any evaluation boards or reference designs available for KS8721SL? A10: Yes, Micrel (now Microchip) provides evaluation boards and reference designs for KS8721SL, which can help developers quickly prototype and integrate the chip into their systems.

Please note that the answers provided here are general and may vary depending on specific implementation requirements and system configurations.