LAN8740A Series

10/100 Base-T/TX Ethernet Transceiver with Power Saving Features and Cable Diagnostics

Catalog

10/100 Base-T/TX Ethernet Transceiver with Power Saving Features and Cable Diagnostics

Part	Voltage - Supply [Max]	Voltage - Supply [Min]	Supplier Device Package	Type	Mounting Type	Protocol	Duplex	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Data Rate
Microchip Technology LAN8740AI-EN	3.3 V	1.8 V	32-SQFN (5x5)	Transceiver	Surface Mount	Ethernet	Full	85 °C	-40 °C	32-VFQFN Exposed Pad	100 Mbps
Microchip Technology LAN8740A-EN	3.3 V	1.8 V	32-SQFN (5x5)	Transceiver	Surface Mount	Ethernet	Full	70 °C	0 °C	32-VFQFN Exposed Pad	100 Mbps
Microchip Technology LAN8740A-EN-TR	3.3 V	1.8 V	32-SQFN (5x5)	Transceiver	Surface Mount	Ethernet	Full	70 °C	0 °C	32-VFQFN Exposed Pad	100 Mbps
Microchip Technology LAN8740AI-EN-TR	3.3 V	1.8 V	32-SQFN (5x5)	Transceiver	Surface Mount	Ethernet	Full	85 °C	-40 °C	32-VFQFN Exposed Pad	100 Mbps

Catalog

10/100 Base-T/TX Ethernet Transceiver with Power Saving Features and Cable Diagnostics

Key Features

• **•**Single-Chip Ethernet PHY

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• **•**Flexible power management architecture

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• **•**LVCMOS variable I/O voltage range +1.6V to +3.6V

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• **•**Integrated 1.2V regulator with disable feature

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• **•**Energy Efficient Ethernet (IEEE 802.3az)

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• **•**Cable diagnostics

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• **•**Deterministic latency

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• **•**MII and RMII supported

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• **•**Wake-On-LAN

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• **•**HP Auto-MDIX support

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• **•**Supports commercial (0°C to 70°C) and industrial (-40°C to 85°C) temperature ranges

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• **•**32-pin, 5x5mm SQFN, RoHS-compliant packages

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• Applications:* Set-top Boxes

• * DVRs/PVRs

• * Digital TVs/iPTVs

• * Printers

• * IP and Video Phones

• * Industrial Networks

• * Embedded/Telecom

• * Test/Measurement Instrumentation

• * Wireless Access Points

• * Power over Ethernet (PoE)

Description

Microchip's LAN8740A/LAN8740Ai are the latest generation of low-power, 10/100 Fast Ethernet PHYs featuring Energy Efficient Ethernet (IEEE 802.3az) and Wake-On-LAN functionality, which provide system sleep modes for improved power savings. The LAN8740A/LAN8740Ai feature deterministic loop back delay, assuring real-time system performance as well as cable diagnostics which reduce network installation costs. These devices are available in both commercial (0°C to 70°C) and industrial (-40°C to 85°C) temperature ranges. The LAN8740A/LAN8740Ai are well-suited for Consumer, Embedded and Industrial applications. Additionally, these devices support auto-negotiation, auto-polarity correction, HP Auto-MDIX† and are compliant with IEEE 802.3 and 802.3u standards. †HP Auto-MDIX eliminates the need for special "crossover" cables when connecting LAN devices together. Microchip's complimentary and confidential [MicroCHECK](https://www.microchip.com/en-us/support/design-help/design-check-services) design review service, which offers insight from the initial concept to the final PCB layout, is available to customers who are using our products in their projects. You can confidently submit your design materials in a secure and private setting, and our expert engineers will provide individualized feedback to enhance your design. MicroCHECK design review service is subject to Microchip's [Program Terms and Conditions](https://www.microchip.com/en-us/support/design-help/design-check-services/design-check-services-program-terms-and-conditions) and requires a myMicrochip account.