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See Technical Specifications

LAN9420I-NU

Single Chip Ethernet Controller supporting 10Mbps/100Mbps, operates at 3.3V, housed in a 128-Pin VTQFP package."

Manufacturer:

Microchip
Mfr.Part #:

LAN9420I-NU
Datasheet:

LAN9420I-NU Datasheet (PDF)
Comments:

10Base-T/100Base-TX Ethernet Controller with PCI interface
Ethernet Bandwidth:

10/100Mbps
TX/RX RAM Buffer(Bytes):

N/A
Interrupt Pin:

1
EDA/CAD Models:

Request Free CAD Models for LAN9420I-NU

Email: [email protected]

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Tel: +852 95804164

LAN9420I-NU General Description

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.

*The LANCheck online design review service is subject to Microchip's Program Terms and Conditions and requires a myMicrochip account.

Key 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 Range Max	85	Max Speed	33Mhz
Mixed Endian	Yes	Checksum Offload	Yes
# of Ether Ports	0	Fiber Support	No
Interface	32 bit PCI 3.0	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