The LAN8740AI-EN-TR is an ethernet Transceiver made by Microchip Technology in a QFN-32-EP(5x5) package with 33 pins. 0℃~+70℃ 1.8V~3.3V 10BASE-T、100BASE-TX 10Mbit/s、100Mbit/s MII、RMII PHY Transceiver QFN-32-EP(5x5) Ethernet Transceivers ROHS.
PCBKit's library has its KiCad symbol (Celestial_Network:MICROCHIP LAN8740A, from Altium's library) and its footprint (EasyEDA_Cloud:QFN-32_L5.0-W5.0-P0.50-BL-EP3.3, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C621421). 1 open-source board in 1 repository on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | VDD2A | Passive |
| 2 | LED2/INT/PME/INTSEL | Passive |
| 3 | LED1/INT/PME/REGOFF | Passive |
| 4 | XTAL2 | Passive |
| 5 | XTAL1/CLKIN | Passive |
| 6 | VDDCR | Passive |
| 7 | RXCLK/PHYAD1 | Passive |
| 8 | RXD3/PHYAD2 | Passive |
| 9 | RXD2/PME/RMIISEL | Passive |
| 10 | RXD1/MODE1 | Passive |
| 11 | RXD0/MODE0 | Passive |
| 12 | VDDIO | Passive |
| 13 | RXER/RXD4/PHYAD0 | Passive |
| 14 | CRS | Passive |
| 15 | COL/CRS_DV/MODE2 | Passive |
| 16 | MDIO | Passive |
| 17 | MDC | Passive |
| 18 | INT/TXER/TXD4 | Passive |
| 19 | RST | Passive |
| 20 | TXCLK | Passive |
| 21 | TXEN | Passive |
| 22 | TXD0 | Passive |
| 23 | TXD1 | Passive |
| 24 | TXD2 | Passive |
| 25 | TXD3 | Passive |
| 26 | RXDV | Passive |
| 27 | VDD1A | Passive |
| 28 | TXN | Passive |
| 29 | TXP | Passive |
| 30 | RXN | Passive |
| 31 | RXP | Passive |
| 32 | RBIAS | Passive |
| 33 | GND | Passive |
martinrybka2000/openacme-pfm
An open-source power quality meter for AC installations. It measures voltage, current, power (active / reactive / apparent), frequency, power factors and THD, and exposes the results over Ethernet and Modbus, with PQDIF…
<iframe src="https://pcbkit.io/embed/parts/microchip/LAN8740AI-EN-TR" title="LAN8740AI-EN-TR in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/microchip/LAN8740AI-EN-TR.jpg" alt="LAN8740AI-EN-TR" width="1200" height="900">[](https://pcbkit.io/parts/microchip/LAN8740AI-EN-TR)Yes. The symbol is Celestial_Network:MICROCHIP LAN8740A and the footprint EasyEDA_Cloud:QFN-32_L5.0-W5.0-P0.50-BL-EP3.3, both drawn on this page. PCBKit places them on a board for you when you design with it.
QFN-32-EP(5x5), with 33 pins. Its footprint is drawn on this page.
Microchip Technology publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C621421, with 0 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the LAN8710AI-EZK-TR-ABC by Microchip Technology, the LAN8740A-EN by Microchip Technology, the LAN8740A-EN-TR by Microchip Technology and the LAN8741A-EN by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
