LAN9352T/PT Microchip Integrated Circuit (Quad Flat Packages) In Stock
Microchip LAN9352T/PT is a 2-port 10/100 Mbps managed Ethernet switch with an 8/16-bit non-PCI CPU interface in an 80-pin TQFP package. It integrates dual integrated PHYs, VLAN tagging, and QoS support for embedded networking. Available in volume with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Quad Flat Packages
- Pin Count
- 80
- Lifecycle
- ACTIVE
- Datasheet
- LAN9352T/PT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $10.0000(MOQ 100)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual integrated 10/100 Mbps PHYs eliminate external PHY components and reduce BOM cost
- 8/16-bit non-PCI CPU interface with host bus compatibility for easy microcontroller integration
- 802.1Q VLAN tagging and 802.1p QoS priority queuing for managed traffic control
- Compact 80-pin TQFP 12mm x 12mm package enabling high-density embedded networking designs
Applications
The LAN9352T/PT targets embedded systems requiring a low-cost 2-port managed Ethernet switch, such as industrial automation controllers, building automation gateways, and embedded HMI panels that must segment LAN traffic without a discrete PHY. Its 8/16-bit CPU interface simplifies integration with non-PCI microcontrollers in factory floor equipment and smart energy meters. The device is also used in network-attached storage appliances and print servers that need VLAN isolation between management and data ports.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | TQFP-80 |
| Factory Lead Time | 5Weeks |
| YTEOL | 14 |
| JESD-30 Code | S-PQFP-G80 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TQFP80,.55SQ |
| Package Shape | SQUARE |
| Package Style | FLATPACK, HEAT SINK/SLUG, THIN PROFILE, FINE PITCH |
| Screening Level | TS 16949 |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Telecom IC Type | ETHERNET TRANSCEIVER |
| Temperature Grade | COMMERCIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Package | Quad Flat Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Taiwan, Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How do the 2 Ethernet ports on the LAN9352T/PT connect to a host microcontroller?
The LAN9352T/PT exposes an 8/16-bit multiplexed non-PCI host bus interface, allowing direct connection to microcontrollers without a PCI bridge. Operating at up to 80 MHz bus speed, it supports both Intel and Motorola bus modes, making it compatible with a broad range of embedded CPUs. Each of the 2 Ethernet ports integrates a 10/100 Mbps PHY, so no external PHY or magnetics beyond a standard RJ-45 transformer are required.
What managed Ethernet features does the LAN9352T/PT provide for industrial network segmentation?
The LAN9352T/PT supports IEEE 802.1Q VLAN tagging with up to 16 VLAN groups and IEEE 802.1p QoS with 4 priority queues per port, enabling traffic isolation in industrial automation networks. It also includes a 512-entry MAC address table with hardware learning and aging, store-and-forward switching at 10 Mbps and 100 Mbps speeds, and an integrated loop detection mechanism to prevent broadcast storms in unmanaged topologies.
What are the power supply requirements for the LAN9352T/PT in an embedded design?
The LAN9352T/PT requires a 3.3V core supply and a 1.8V I/O supply, both of which must be provided externally. Digital I/O pins are 3.3V tolerant, and the device draws typically 200mA from the 3.3V rail under full 100 Mbps traffic load on both ports. Decoupling capacitors of at least 100nF per supply pin are recommended close to the 80-pin TQFP package to minimize switching noise.
When is the LAN9352T/PT a better fit than a discrete PHY plus external MAC for a 2-port Ethernet application?
The LAN9352T/PT integrates both 2 PHYs and the switch MAC fabric in a single 80-pin TQFP die, reducing BOM by eliminating 2 external PHY ICs, their crystal oscillators, and associated passives. This integration typically saves 30% board area compared to a discrete 2-PHY solution. The device also reduces firmware complexity by offloading 802.1Q VLAN and 802.1p QoS management to hardware, freeing the host CPU for application tasks in resource-constrained microcontroller designs.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $11.4100 | $1141.00 |
| 1000+ | $10.5400 | $10540.00 |
| 5000+ | $10.0000 | $50000.00 |
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