Overview
The LAN8742A-CZ-TR, produced by Microchip Technology, is a low-power 10BASE-T/100BASE-TX physical layer (PHY) transceiver designed for a wide range of Ethernet applications. This single-chip Ethernet transceiver is compliant with IEEE 802.3 and 802.3u standards and supports communication with an Ethernet MAC via a standard RMII interface. It features a small footprint 24-pin QFN package, making it suitable for space-constrained designs. The device is known for its flexible power management architecture and integrated features such as Wake on LAN (WoL) and HP Auto-MDIX support.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Microchip Technology |
| Part Number | LAN8742A-CZ-TR |
| Package | QFN-24-EP (4x4 mm) |
| Operating Temperature | 0°C to +70°C |
| Operating Voltage | 1.62 V to 3.6 V |
| Communications Protocol | IEEE 802.3, IEEE 802.3u |
| Number of Transceivers | 1 |
| Mounting Type | SMD |
| RoHS Compliance | Yes |
Key Features
- Single-chip Ethernet Physical Layer Transceiver (PHY)
- Supports 10 Mbps (10BASE-T) and 100 Mbps (100BASE-TX) operation
- Variable I/O voltage range: +1.8 V to +3.3 V
- Integrated 1.2 V regulator with disable feature
- HP Auto-MDIX support for direct connect or cross-over LAN cables
- Wake on LAN (WoL) support for power management
- Cable diagnostic support for identifying opens/shorts and their location on the cable
- Comprehensive flexPWR® technology for flexible power management
Applications
- Set-Top Boxes
- Networked Printers and Servers
- Test Instrumentation
- LAN on Motherboard
- Embedded Telecom Applications
- Video Record/Playback Systems
- Cable Modems/Routers
- DSL Modems/Routers
- Digital Video Recorders
- IP and Video Phones
- Wireless Access Points
- Digital Televisions
Q & A
- What is the LAN8742A-CZ-TR used for? The LAN8742A-CZ-TR is a 10BASE-T/100BASE-TX physical layer (PHY) transceiver used in various Ethernet applications.
- What are the key features of the LAN8742A-CZ-TR? Key features include HP Auto-MDIX support, Wake on LAN (WoL), cable diagnostic support, and a flexible power management architecture.
- What is the operating temperature range of the LAN8742A-CZ-TR? The operating temperature range is 0°C to +70°C.
- What is the package type of the LAN8742A-CZ-TR? The package type is QFN-24-EP (4x4 mm).
- Is the LAN8742A-CZ-TR RoHS compliant? Yes, the LAN8742A-CZ-TR is RoHS compliant.
- What communications protocols does the LAN8742A-CZ-TR support? It supports IEEE 802.3 and IEEE 802.3u protocols.
- What is the operating voltage range of the LAN8742A-CZ-TR? The operating voltage range is 1.62 V to 3.6 V.
- What are some common applications of the LAN8742A-CZ-TR? Common applications include set-top boxes, networked printers and servers, test instrumentation, and embedded telecom applications.
- Does the LAN8742A-CZ-TR support Wake on LAN (WoL)? Yes, it supports Wake on LAN (WoL) for power management.
- How does the LAN8742A-CZ-TR handle cable diagnostics? It supports cable diagnostics to identify opens/shorts and their location on the cable via vendor-specific registers.
