LAN9420I-NU Network Controllers by Microchip Technology
10/100 Base-T/TX Ethernet Controller with PCI Interface
| Status: | Active |
|---|---|
| Series: | LAN9420 |
| RoHS: | Compliant |
LAN9420/LAN9420i is a full-featured, Fast Ethernet controller which allows for the easy and cost-effective integration of Fast Ethernet into a PCI-based system. LAN9420/LAN9420i consists of a PCI Local Bus Specification Revision 3.0 compliant interface, DMA Controller, Ethernet MAC, and 10/100 Ethernet PHY.
LAN9420/LAN9420i provides full IEEE 802.3 compliance and all internal components support full/half-duplex 10BASE-T, 100BASE-TX, and manual full-duplex flow control. The descriptor based scatter-gather DMA supports usage of zero-copy drivers, effectively increasing throughput while decreasing Host load. The integrated IRQ deassertion timer allows a minimum IRQ deassertion time to be set, providing reduced Host load and greater control over service routines. Automatic 32-bit CRC generation/checking, automatic payload padding, and 2K jumbo packets (2048 byte) are supported.
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Where to Buy
Prices starting from US$4.84
| Distributor | Stock | ||
|---|---|---|---|
|
Microchip Technology
from US$5.05
|
3,420
in stock
|
Buy Now |
|
TME
from US$4.84
|
49
in stock
|
Buy Now |
|
RS
from US$5.92
|
0
in stock
|
Buy Now |
|
Newark Electronics
from US$5.44
|
0
in stock
|
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|
Future Electronics
from US$5.60
|
0
in stock
|
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|
Avnet America
from US$5.60
|
0
in stock
|
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|
|
RS Americas
from US$11.59
|
0
in stock
|
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|
element14
from US$5.83
|
0
in stock
|
Buy Now |
|
Farnell
from US$5.32
|
0
in stock
|
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|
EBV Elektronik
-
|
0
in stock
|
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|
Avnet Silica
-
|
0
in stock
|
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| Buy Now |
Features
| Optimized for embedded applications with 32-bit RISC CPUs |
| Integrated descriptor based scatter-gather DMA and IRQ deassertion timer effectively increase network throughput and reduce CPU loading |
| Integrated Ethernet MAC with full-duplex support |
| Integrated 10/100 Ethernet PHY with HP Auto-MDIX Support |
| 32-bit, 33MHz, PCI 3.0 compliant interface |
| Reduced power operating modes with PCI Power Management Specification 1.1 compliance |
| Supports multiple audio & video streams over Ethernet |
| Cable, satellite, and IP set-top boxes |
| Digital televisions |
| Digital video recorders |
| Home gateways |
| Digital media clients/servers |
| Industrial automation systems |
| Industrial/single board PC |
| Kiosk/POS enterprise equipment |
| Fully compliant with IEEE 802.3/802.3u |
| Integrated Ethernet MAC and PHY |
| 10BASE-T and 100BASE-TX support |
| Full- and Half-duplex support |
| Full-duplex flow control |
| Preamble generation and removal |
| Automatic 32-bit CRC generation and checking |
| Automatic payload padding and pad removal |
| Loop-back modes |
| One 48-bit perfect address |
| 64 hash-filtered multicast addresses |
| Pass all multicast |
| Promiscuous mode |
| Inverse filtering |
| Pass all incoming with status report |
| Wakeup packet support |
| Auto-negotiation |
| Automatic polarity detection and correction |
| Supports HP Auto-MDIX |
| Supports energy-detect power down |
| Support for 3 status LEDs |
| Receive and transmit TCP checksum offload |
| PCI Local Bus Specification Revision 3.0 compliant |
| 32-bit/33-MHz PCI bus |
| Descriptor based scatter-gather DMA enables zero-copy drivers |
| Supports PCI Bus Power Management Interface Specification, Revision 1.1 |
| Supports optional wake from D3cold (via configuration strap option when Vaux is available) |
| Wake on LAN |
| Wake on link status change (energy detect) |
| Magic packet wakeup |
| 3 programmable GPIO pins |
| 2 GPO pins |
| Serial interface provided for EEPROM |
| Used to store PCI and MAC address configuration values |
| Big/Little/Mixed endian support for registers, descriptors, and buffers |
| IRQ deassertion timer |
| General purpose timer |
| Integrated 1.8V regulator |
| Available in 128-pin VTQFP RoHS Compliant package |
| Available in commercial & industrial temperature ranges |
Specifications
| Comments | 10Base-T/100Base-TX Ethernet Controller with PCI interface |
|---|---|
| Ethernet Bandwidth | 10/100Mbps |
| TX/RX RAM Buffer(Bytes) | N/A |
| Interrupt Pin | 1 |
| LEDs | 3 |
| Op. Voltage (V) | 0 |
| # Ethernet Ports | 1 |
| Temp Range Min | -40 |
| Temp Rang Max | 85 |
| Max Speed | 33Mhz |
| Mixed Endian | Yes |
| Checksum Offload | Yes |
| # of Ether Ports | 0 |
| Fiber Support | No |
| Interface | 32 bit PCI 3.0 |
| Buffer size Rx (KB) | 0 |
| Buffer size Tx (KB) | 0 |
| Supply voltage (V) | 0 |
| Vdd I/O (V) | 3.3 |
| LinkMD Cable Diag | No |
| ESD Rating (KV) | 0 |
| WOL | No |
| Largets Pkt-Size Bytes | 0 |
| # of VLAN | 0 |
| Pins | Packaging | 128 | TQFP |
| Temp Range | -40C to +85C |
| Packing Media | Tray (90) |
Last 6 months Inventory & Pricing History
Resources
Application Notes |
|---|
| AN1120 - Ethernet Theory of Operation |
| AN8.13 - Suggested Magnetics |
| AN2157 - Transient Protection in Power Over Ethernet Applications |
Environmental Information
| JEDEC Indicator | e3 |
|---|---|
| ROHS | Compliant |
| China EFUP | Compliant |
| Device Weight (g) | 0.5575 |
| Shipping Weight (kg) | 1.8 |
| Lead Count | 128 |
| Package Type | TQFP |
| Package Width or Size | 14x14x1mm |
| Soldering Composition | Matte Tin |
Alternative Descriptions
| Single Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface | Microchip Technology |
| IC: ethernet switch | TME |
| Microchip LAN9420I-NU Controller IC | RS |
| Ethernet Controller W/ Pci, 100Mbps, Vtqfp-128 | Newark Electronics |
| LAN9420I Series 3.3 V 125 mA Single Chip Ethernet Controller - VTQFP-128 | Future Electronics |
| Ethernet CTLR Single Chip 10Mbps/100Mbps 3.3V 128-Pin VTQFP | Avnet America |
| LAN9420I-NU, ETHERNET CONTROLLER 10/100 MBITS/S MII, PCI,3.3V,128-PIN TQFP | RS Americas |
| ETHERNET CTRL, 100MBPS, -40 TO 85DEG C | element14 |
Frequently Asked Questions
Where can I find additional details, specifications and documents for a LAN9420I-NU?
Additional datasheets, footprints and schematics for LAN9420I-NU are listed on our Part Details page. You can also find images and similar parts to LAN9420I-NU on this page.
What pricing and inventory information can I view?
Distributor pricing and stock information is available for LAN9420I-NU on our Product Comparison page. Access via the 'View Pricing & Stock' button to view LAN9420I-NU price breaks, MOQs, lead times, inventory and SKUs from distributors.
What category does LAN9420I-NU fall under?
The LAN9420I-NU is listed under Semiconductors - ICs > Network Controllers > Ethernet Controllers.
Can I view similar or alternative parts?
You can view similar parts to LAN9420I-NU when available in the Ethernet Controllers range under the specifications section at the bottom of the details page.
Who can I contact for technical support of the product?
Submit any questions directly to the customer support team of the distributor listing the product. For the LAN9420I-NU you can contact the distributor directly for product support, shipping queries etc.
Is the LAN9420I-NU RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by Microchip Technology.
Which authorised distributors for LAN9420I-NU have stock available?
Authorised distributors including Microchip Technology, TME, RS, Newark Electronics and Future Electronics have stock available or on a lead time for LAN9420I-NU.
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