LAN8841 - Electronic component Microchip - Free user manual and instructions
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| Product Type | Ethernet Controller |
| Brand | Microchip Technology |
| Model | LAN8841 |
| Package | QFN (Quad Flat No-leads) |
| Dimensions | 8 mm x 8 mm |
| Weight | 0.5 g (approximately) |
| Supply Voltage | 3.3 V |
| Power Consumption | 0.5 W (typical) |
| Operating Temperature Range | -40°C to +85°C |
| Interface | RMII (Reduced Media Independent Interface) |
| Data Rate | 10/100 Mbps |
| Built-in Features | MAC, PHY, and controller in one chip |
| Compliance | IEEE 802.3 |
| Maintenance | No user maintenance required; keep in anti-static bag |
| Safety | ESD sensitive; handle with proper grounding |
| Spare Parts | Available from authorized distributors |
| Reparability | Not user-repairable; replace entire chip |
| General Info | Refer to the datasheet for detailed electrical characteristics |
Frequently Asked Questions - LAN8841 Microchip
What is the LAN8841?
The LAN8841 is an Ethernet controller chip from Microchip, integrating MAC and PHY for 10/100 Mbps Ethernet connectivity.
What is the operating voltage of the LAN8841?
The LAN8841 operates at a nominal 3.3V supply voltage.
How do I connect the LAN8841 to my microcontroller?
The LAN8841 uses an RMII interface. Connect the RMII signals to the corresponding pins on your microcontroller.
Can the LAN8841 be used in automotive applications?
The LAN8841 is specified for an operating temperature range of -40°C to +85°C, suitable for many industrial and automotive environments.
Does the LAN8841 require an external PHY?
No, the LAN8841 includes an integrated PHY, eliminating the need for a separate PHY chip.
What is the package type of the LAN8841?
The LAN8841 comes in a QFN package, typically 8x8 mm, suitable for surface-mount assembly.
How can I troubleshoot connectivity issues?
Check power supply (3.3V), RMII connections, and link LEDs. Ensure the configured speed/duplex match your network.
Is the LAN8841 RoHS compliant?
Yes, the LAN8841 is RoHS compliant and lead-free.
Where can I find the datasheet?
The datasheet is available on the Microchip website under the product page for LAN8841.
What are the typical application circuits?
Typical application circuits include the RMII interface to a microcontroller, an Ethernet transformer, and an RJ45 jack. Refer to the datasheet for a reference design.
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