LAN9311-NU Network Controllers by Microchip Technology
2-Port 10/100 Managed Ethernet Switch with Host Bus Interface
| Status: | Active |
|---|---|
| Series: | LAN9311 |
| RoHS: | Compliant |
The LAN9311/LAN9311i is a full featured, 2 port 10/100 managed Ethernet switch designed for embedded applications where performance, flexibility, ease of integration and system cost control are required. The LAN9311/LAN9311i combines all the functions of a 10/100 switch system, including the switch fabric, packet buffers, buffer manager, media access controllers (MACs), PHY transceivers, and host bus interface. The LAN9311/LAN9311i complies with the IEEE 802.3 (full/half-duplex 10BASE-T and 100BASE-TX) Ethernet protocol specification and 802.1D/802.1Q network management protocol specifications, enabling compatibility with industry standard Ethernet and Fast Ethernet applications.
At the core of the LAN9311/LAN9311i is the high performance, high efficiency 3 port Ethernet switch fabric. The switch fabric contains a 3 port VLAN layer 2 switch engine that supports untagged, VLAN tagged, and priority tagged frames. The switch fabric provides an extensive feature set which includes spanning tree protocol support, multicast packet filtering and Quality of Service (QoS) packet prioritization by VLAN tag, destination address, port default value or DIFFSERV/TOS, allowing for a range of prioritization implementations. 32K of buffer RAM allows for the storage of multiple packets while forwarding operations are completed, and a 1K entry forwarding table provides ample room for MAC address forwarding tables. Each port is allocated a cluster of 4 dynamic QoS queues which allow each queue size to grow and shrink with traffic, effectively utilizing all available memory. This memory is managed dynamically via the buffer manager block within the switch fabric. All aspects of the switch fabric are managed via the switch fabric configuration and status registers, which are indirectly accessible via the memory mapped system control and status registers.
*The LANCheck online design review service is subject to Microchip's Program Terms and Conditions and requires a myMicrochip account.
Where to Buy
Prices starting from US$9.82
| Distributor | Stock | ||
|---|---|---|---|
|
Microchip Technology
from US$9.82
|
7
in stock
|
Buy Now |
|
Newark Electronics
from US$12.51
|
0
in stock
|
Buy Now |
|
Future Electronics
from US$10.94
|
0
in stock
|
Buy Now |
|
Avnet America
from US$10.94
|
0
in stock
|
Buy Now |
|
TME
from US$12.34
|
0
in stock
|
Buy Now |
|
Avnet Silica
-
|
0
in stock
|
Buy Now |
| Buy Now |
Features
| High performance and full featured 2 port switch with VLAN, QoS packet prioritization, Rate Limiting, IGMP monitoring and management functions |
| Easily interfaces to most 16-bit embedded CPU's |
| Unique Virtual PHY feature simplifies software development by mimicking the multiple switch ports as a single port MAC/PHY |
| Integrated IEEE 1588 Hardware Time Stamp Unit |
| Cable, satellite, and IP set-top boxes |
| Digital televisions |
| Digital video recorders |
| VoIP/Video phone systems |
| Home gateways |
| Test/Measurement equipment |
| Industrial automation systems |
| 32K buffer RAM |
| 1K entry forwarding table |
| Programmable IEEE 802.1Q tag insertion/removal |
| IEEE 802.1d spanning tree protocol support |
| 4 dynamic QoS queues per port |
| Input priority determined by VLAN tag, DA lookup, TOS, DIFFSERV or port default value |
| Programmable class of service map based on input priority |
| Remapping of 802.1Q priority field on per port basis |
| Programmable rate limiting at the ingress/egress ports with random early discard, per port/priority |
| IGMP v1/v2/v3 monitoring for Multicast packet filtering |
| Programmable filter by MAC address |
| Port mirroring/monitoring/sniffing: ingress and/or egress traffic on any ports or port pairs |
| Fully compliant statistics (MIB) gathering counters |
| Control registers configurable on-the-fly |
| 2 internal 10/100 PHYs with HP Auto-MDIX support |
| Fully compliant with IEEE 802.3 standards |
| 10BASE-T and 100BASE-TX support |
| Full and half duplex support |
| Full duplex flow control |
| Backpressure (forced collision) half duplex flow control |
| Automatic flow control based on programmable levels |
| Automatic 32-bit CRC generation and checking |
| Automatic payload padding |
| 2K Jumbo packet support |
| Programmable interframe gap, flow control pause value |
| Full transmit/receive statistics |
| Auto-negotiation |
| Automatic MDI/MDI-X |
| Loop-back mode |
| Provides in-band network communication path |
| Access to management registers |
| Simple, SRAM-like interface |
| 16-bit data bus |
| Big, little, and mixed endian support |
| Large TX and RX FIFO's for high latency applications |
| Programmable water marks and threshold levels |
| Host interrupt support |
| Global 64-bit tunable clock |
| Master or slave mode per port |
| Time stamp on TX or RX of Sync and Delay_req packets per port, Timestamp on GPIO |
| 64-bit timer comparator event generation (GPIO or IRQ) |
| Wake on LAN |
| Wake on link status change (energy detect) |
| Magic packet wakeup |
| Wakeup indicator event signal |
| General Purpose Timer |
| Serial EEPROM interface (I2C master or Microwire™ master) for non-managed configuration |
| Programmable GPIOs/LEDs |
| Single 3.3V power supply |
| Available in Commercial & Industrial Temp. Ranges |
Specifications
| Ethernet Bandwidth | 10/100Mbps |
|---|---|
| TX RX RAM Buffer | 40K |
| Interrupt Pin | Yes |
| Op Voltage | 3.3 |
| # Ethernet Ports | 2 |
| Interface | Host Bus |
| IOPins | 8 |
| IEEE1588 | No |
| Temp Range Min | 0 |
| Temp Range Max | 70 |
| Turbo MII | No |
| Dual MII Support | No |
| # of Ether Ports | 2 |
| Copper Support | 10/100 (2) |
| Fiber Support | No |
| Supply Voltage (V) | 3.3 |
| Vdd I/O (V) | 3.3 |
| LinkMD Cable Diag | No |
| On-Chip Termination | No |
| WOL | No |
| Largest Pkt-Size Bytes | 0 |
| # of VLAN | 0 |
| Pins | Packaging | 128 | TQFP |
| Temp Range | 0C to +70C |
| Packing Media | Tray (90) |
Last 6 months Inventory & Pricing History
Resources
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
| Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface | Microchip Technology |
| Ethernet Switch, 100Mbps, Vtqfp128 | Newark Electronics |
| Ethernet Switch 10/100 Base-T/TX PHY IC Interface 128-VTQFP (14x14) | Future Electronics |
| IC: ethernet switch | TME |
Frequently Asked Questions
Where can I find additional details, specifications and documents for a LAN9311-NU?
Additional datasheets, footprints and schematics for LAN9311-NU are listed on our Part Details page. You can also find images and similar parts to LAN9311-NU on this page.
What pricing and inventory information can I view?
Distributor pricing and stock information is available for LAN9311-NU on our Product Comparison page. Access via the 'View Pricing & Stock' button to view LAN9311-NU price breaks, MOQs, lead times, inventory and SKUs from distributors.
What category does LAN9311-NU fall under?
The LAN9311-NU is listed under Semiconductors - ICs > Network Controllers > Ethernet Controllers.
Can I view similar or alternative parts?
You can view similar parts to LAN9311-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 LAN9311-NU you can contact the distributor directly for product support, shipping queries etc.
Is the LAN9311-NU RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by Microchip Technology.
Which authorised distributors for LAN9311-NU have stock available?
Authorised distributors including Microchip Technology, Newark Electronics, Future Electronics, Avnet America and TME have stock available or on a lead time for LAN9311-NU.
How do I check stock and lead times for all distributors?
Stock availability and lead times will be displayed for LAN9311-NU often in real-time on the comparison pages.
What if I can't find stock of LAN9311-NU?
You can fill out our help required form which you can use to request a quote for LAN9311-NU from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.