KSZ8721BLI-TR

Product Overview

Category

The KSZ8721BLI-TR belongs to the category of Ethernet Physical Layer Transceivers.

Use

This product 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
• Small form factor package

Package

The KSZ8721BLI-TR is available in a small form factor package, making it suitable for space-constrained designs.

Essence

The essence of the KSZ8721BLI-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

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Data Rate: 10/100 Mbps
• Supply Voltage: 3.3V
• Operating Temperature Range: -40°C to +85°C
• Interface Type: MII (Media Independent Interface)
• Package Type: 48-LQFP (Lead Quad Flat Package)

Detailed Pin Configuration

The KSZ8721BLI-TR features a 48-pin LQFP package with the following pin configuration:

1. TXD0+
2. TXD0-
3. TX_EN
4. TX_ER
5. RXD0+
6. RXD0-
7. CRS_DV
8. RX_ER
9. REF_CLK
10. MDIO
11. MDC
12. RX_DV
13. RX_CLK
14. RX_ER
15. RXD1+
16. RXD1-
17. RXD2+
18. RXD2-
19. RXD3+
20. RXD3-
21. TX_CLK
22. TX_ER
23. TXD1+
24. TXD1-
25. TXD2+
26. TXD2-
27. TXD3+
28. TXD3-
29. VDDA
30. VDDIO
31. VDD
32. GND
33. GND
34. GND
35. GND
36. GND
37. GND
38. GND
39. GND
40. GND
41. GND
42. GND
43. GND
44. GND
45. GND
46. GND
47. GND
48. GND

Functional Features

• Auto-negotiation support for link speed and duplex mode detection
• Integrated termination resistors for simplified PCB layout
• Energy Efficient Ethernet (EEE) support for reduced power consumption
• Built-in diagnostic features for cable diagnostics and link quality monitoring
• Supports various LED indicators for link/activity status indication

Advantages and Disadvantages

Advantages

• High-speed data transmission capability
• Low power consumption
• Compact form factor
• Simplified PCB layout due to integrated termination resistors
• Comprehensive diagnostic features for improved network troubleshooting

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 KSZ8721BLI-TR operates by receiving digital signals from the connected MAC through the MII interface. It then converts these signals into analog waveforms suitable for transmission over twisted pair cables. On the receiving end, it performs the reverse process, converting the received analog signals back into digital data for the MAC to process.

Detailed Application Field Plans

The KSZ8721BLI-TR is commonly used in various Ethernet-based applications, including: - Network switches - Routers - Industrial automation systems - Embedded systems - Internet of Things (IoT) devices

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the KSZ8721BLI-TR include: - KSZ8081RNB - DP83848CVV - LAN8720A

These alternatives provide comparable features and can be considered based on specific design requirements.

Word count: 550 words